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Update -Warray-bounds documentation [PR104355].
[thirdparty/gcc.git] / configure.ac
CommitLineData
beeaf216 1# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
ec8fd1c0 2# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
98e5be21 3# 2014, 2015, 2016, 2019 Free Software Foundation, Inc.
6599da04
JM		 4#
5# This file is free software; you can redistribute it and/or modify it
6# under the terms of the GNU General Public License as published by
309c24a9 7# the Free Software Foundation; either version 3 of the License, or
6599da04
JM		 8# (at your option) any later version.
9#
10# This program is distributed in the hope that it will be useful, but
11# WITHOUT ANY WARRANTY; without even the implied warranty of
12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13# General Public License for more details.
14#
15# You should have received a copy of the GNU General Public License
309c24a9
JJ		 16# along with this program; see the file COPYING3. If not see
17# <http://www.gnu.org/licenses/>.
6599da04
JM		 18
19##############################################################################
671aa708
NN		 20### WARNING: this file contains embedded tabs. Do not run untabify on this file.
21
7142fb32
PB		 22m4_include(config/acx.m4)
23m4_include(config/override.m4)
38d24731 24m4_include(config/proginstall.m4)
7413962d 25m4_include(config/elf.m4)
ffac9597 26m4_include(config/ax_cxx_compile_stdcxx.m4)
592c90ff
KG		 27m4_include([libtool.m4])
28m4_include([ltoptions.m4])
29m4_include([ltsugar.m4])
30m4_include([ltversion.m4])
31m4_include([lt~obsolete.m4])
33ad93b9 32m4_include([config/isl.m4])
ad6717df 33
671aa708 34AC_INIT(move-if-change)
0115d4a3 35AC_DISABLE_OPTION_CHECKING
1c710c3c 36
ad33ff57
RW		 37progname=$0
38# if PWD already has a value, it is probably wrong.
39if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
40
41# Export original configure arguments for use by sub-configures.
42# Quote arguments with shell meta charatcers.
43TOPLEVEL_CONFIGURE_ARGUMENTS=
44set -- "$progname" "$@"
45for ac_arg
46do
47 case "$ac_arg" in
48 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
49 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
50 # if the argument is of the form -foo=baz, quote the baz part only
51 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
52 *) ;;
53 esac
54 # Add the quoted argument to the list.
55 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
56done
57if test "$silent" = yes; then
58 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
59fi
60# Remove the initial space we just introduced and, as these will be
61# expanded by make, quote '$'.
62TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
63AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
64
1c710c3c
DJ		 65# Find the build, host, and target systems.
66ACX_NONCANONICAL_BUILD
67ACX_NONCANONICAL_HOST
68ACX_NONCANONICAL_TARGET
69
70dnl Autoconf 2.5x and later will set a default program prefix if
71dnl --target was used, even if it was the same as --host. Disable
72dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
73dnl to take effect.
74test "$host_noncanonical" = "$target_noncanonical" &&
75 test "$program_prefix$program_suffix$program_transform_name" = \
76 NONENONEs,x,x, &&
77 program_transform_name=s,y,y,
78
671aa708
NN		 79AC_CANONICAL_SYSTEM
80AC_ARG_PROGRAM
81
1c710c3c 82m4_pattern_allow([^AS_FOR_TARGET$])dnl
0999159b 83m4_pattern_allow([^AS_FOR_BUILD$])dnl
1c710c3c 84
775956d0
NN		 85# Get 'install' or 'install-sh' and its variants.
86AC_PROG_INSTALL
ad6717df 87ACX_PROG_LN
148907ea 88AC_PROG_LN_S
87264276
PB		 89AC_PROG_SED
90AC_PROG_AWK
775956d0 91
fc45f3fe
DJ		 92srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
93
94# We pass INSTALL explicitly to sub-makes. Make sure that it is not
95# a relative path.
96if test "$INSTALL" = "${srcdir}/install-sh -c"; then
97 INSTALL="${srcpwd}/install-sh -c"
98fi
99
671aa708
NN		 100# Set srcdir to "." if that's what it is.
101# This is important for multilib support.
102pwd=`${PWDCMD-pwd}`
671aa708
NN		 103if test "${pwd}" = "${srcpwd}" ; then
104 srcdir=.
105fi
106
107topsrcdir=$srcpwd
6599da04 108
4977bab6 109extra_host_args=
afabd8e6 110
6599da04
JM		 111### To add a new directory to the tree, first choose whether it is a target
112### or a host dependent tool. Then put it into the appropriate list
4977bab6
ZW		 113### (library or tools, host or target), doing a dependency sort.
114
115# Subdirs will be configured in the order listed in build_configdirs,
116# configdirs, or target_configdirs; see the serialization section below.
117
118# Dependency sorting is only needed when *configuration* must be done in
119# a particular order. In all cases a dependency should be specified in
120# the Makefile, whether or not it's implicitly specified here.
6599da04 121
4977bab6
ZW		 122# Double entries in build_configdirs, configdirs, or target_configdirs may
123# cause circular dependencies and break everything horribly.
6599da04 124
23f6b2f9
PB		 125# these library is used by various programs built for the build
126# environment
127#
929315a9 128build_libs="build-libiberty build-libcpp"
23f6b2f9
PB		 129
130# these tools are built for the build environment
85bfb75e 131build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
23f6b2f9 132
6599da04 133# these libraries are used by various programs built for the host environment
eae1a5d4 134#f
36230329 135host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libcody 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".
2efd8b1f 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 c++tools"
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 \
48310492 154 target-libatomic \
0a35513e 155 target-libitm \
cb543528 156 target-libstdc++-v3 \
f35db108 157 target-libsanitizer \
2077db1b 158 target-libvtv \
77008252 159 target-libssp \
1ec601bf 160 target-libquadmath \
6de9cd9a 161 target-libgfortran \
012447ea 162 target-libffi \
d9cdb878 163 target-libobjc \
632e2a07 164 target-libada \
b4c522fa 165 target-libgo \
bb50312e
IB		 166 target-libphobos \
167 target-zlib"
6599da04 168
4dbda6f0
NN		 169# these tools are built using the target libraries, and are intended to
170# run only in the target environment
6599da04 171#
4dbda6f0 172# note: any program that *uses* libraries that are in the "target_libraries"
1bcce263 173# list belongs in this list.
6599da04 174#
85bfb75e 175target_tools="target-rda"
6599da04
JM		 176
177################################################################################
178
6599da04
JM		 179## All tools belong in one of the four categories, and are assigned above
180## We assign ${configdirs} this way to remove all embedded newlines. This
181## is important because configure will choke if they ever get through.
182## ${configdirs} is directories we build using the host tools.
183## ${target_configdirs} is directories we build using the target tools.
6599da04 184configdirs=`echo ${host_libs} ${host_tools}`
4dbda6f0 185target_configdirs=`echo ${target_libraries} ${target_tools}`
71b5d516 186build_configdirs=`echo ${build_libs} ${build_tools}`
8b87bb96 187
ac9e6043 188m4_divert_text([PARSE_ARGS],
87841584
AM		 189[case $srcdir in
190 *" "*)
191m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
192 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
193m4_popdef([AS_MESSAGE_LOG_FD])dnl
194 ;;
195esac
196ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
ac9e6043
RW		 197])
198
6599da04
JM		 199################################################################################
200
6599da04
JM		 201srcname="gnu development package"
202
203# This gets set non-empty for some net releases of packages.
204appdirs=""
205
e1848dde
NN		 206# Define is_cross_compiler to save on calls to 'test'.
207is_cross_compiler=
208if test x"${host}" = x"${target}" ; then
209 is_cross_compiler=no
210else
211 is_cross_compiler=yes
212fi
213
b4acb5ef 214# Find the build and target subdir names.
8b87bb96 215GCC_TOPLEV_SUBDIRS
0db770bd
RW		 216# Be sure to cover against remnants of an in-tree build.
217if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
218 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
219Use a pristine source tree when building in a separate tree])
220fi
f653f0ab 221
55380b08
NN		 222# Skipdirs are removed silently.
223skipdirs=
224# Noconfigdirs are removed loudly.
225noconfigdirs=""
6599da04 226
55380b08
NN		 227use_gnu_ld=
228# Make sure we don't let GNU ld be added if we didn't want it.
229if test x$with_gnu_ld = xno ; then
230 use_gnu_ld=no
5afab7ad 231 noconfigdirs="$noconfigdirs ld gold"
6599da04
JM		 232fi
233
55380b08
NN		 234use_gnu_as=
235# Make sure we don't let GNU as be added if we didn't want it.
236if test x$with_gnu_as = xno ; then
237 use_gnu_as=no
238 noconfigdirs="$noconfigdirs gas"
6599da04
JM		 239fi
240
d7f09764 241use_included_zlib=
a05c2c75
L		 242AC_ARG_WITH(system-zlib,
243[AS_HELP_STRING([--with-system-zlib], [use installed libz])])
d7f09764
DN		 244# Make sure we don't let ZLIB be added if we didn't want it.
245if test x$with_system_zlib = xyes ; then
246 use_included_zlib=no
247 noconfigdirs="$noconfigdirs zlib"
248fi
249
55380b08
NN		 250# some tools are so dependent upon X11 that if we're not building with X,
251# it's not even worth trying to configure, much less build, that tool.
6599da04 252
55380b08
NN		 253case ${with_x} in
254 yes | "") ;; # the default value for this tree is that X11 is available
423ce3eb 255 no)
b4f96efe 256 skipdirs="${skipdirs} tk itcl libgui"
423ce3eb
NN		 257 # We won't be able to build gdbtk without X.
258 enable_gdbtk=no
259 ;;
55380b08
NN		 260 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
261esac
6599da04 262
1bcce263 263# Some are only suitable for cross toolchains.
95ddd785
NN		 264# Remove these if host=target.
265cross_only="target-libgloss target-newlib target-opcodes"
6599da04 266
55380b08
NN		 267case $is_cross_compiler in
268 no) skipdirs="${skipdirs} ${cross_only}" ;;
55380b08 269esac
6599da04 270
0c639b89
DD		 271# If both --with-headers and --with-libs are specified, default to
272# --without-newlib.
9082a750
MR		 273if test x"${with_headers}" != x && test x"${with_headers}" != xno \
274 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
0c639b89
DD		 275 if test x"${with_newlib}" = x ; then
276 with_newlib=no
277 fi
278fi
279
280# Recognize --with-newlib/--without-newlib.
281case ${with_newlib} in
282 no) skipdirs="${skipdirs} target-newlib" ;;
283 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
284esac
285
85c64bbe
BS		 286AC_ARG_ENABLE(as-accelerator-for,
287[AS_HELP_STRING([--enable-as-accelerator-for=ARG],
288 [build as offload target compiler.
4b4f2e35 289 Specify offload host triple by ARG])])
85c64bbe
BS		 290
291AC_ARG_ENABLE(offload-targets,
292[AS_HELP_STRING([--enable-offload-targets=LIST],
293 [enable offloading to devices from comma-separated LIST of
294 TARGET[=DIR]. Use optional path to find offload target compiler
295 during the build])],
296[
297 if test x"$enable_offload_targets" = x; then
298 AC_MSG_ERROR([no offload targets specified])
299 fi
300], [enable_offload_targets=])
301
fe5bfa67
TB		 302AC_ARG_ENABLE(offload-defaulted,
303[AS_HELP_STRING([--enable-offload-defaulted]
304 [If enabled, configured but not installed offload compilers and
305 libgomp plugins are silently ignored. Useful for distribution
306 compilers where those are in separate optional packages.])],
307[enable_offload_defaulted=$enableval],
308[enable_offload_defaulted=])
309
21539e2e
MK		 310# Handle --enable-gold, --enable-ld.
311# --disable-gold [--enable-ld]
312# Build only ld. Default option.
9580395f
L		 313# --enable-gold [--enable-ld]
314# Build both gold and ld. Install gold as "ld.gold", install ld
315# as "ld.bfd" and "ld".
316# --enable-gold=default [--enable-ld]
21539e2e
MK		 317# Build both gold and ld. Install gold as "ld.gold" and "ld",
318# install ld as "ld.bfd".
319# --enable-gold[=default] --disable-ld
320# Build only gold, which is then installed as both "ld.gold" and "ld".
321# --enable-gold --enable-ld=default
9580395f
L		 322# Build both gold (installed as "ld.gold") and ld (installed as "ld"
323# and ld.bfd).
21539e2e
MK		 324# In other words, ld is default
325# --enable-gold=default --enable-ld=default
326# Error.
327
328default_ld=
5afab7ad 329AC_ARG_ENABLE(gold,
33e39b66
AS		 330[AS_HELP_STRING([[--enable-gold[=ARG]]],
331 [build gold @<:@ARG={default,yes,no}@:>@])],
5afab7ad
ILT		 332ENABLE_GOLD=$enableval,
333ENABLE_GOLD=no)
21539e2e
MK		 334case "${ENABLE_GOLD}" in
335 yes|default)
38e3d868
RM		 336 # Check for ELF target.
337 is_elf=no
338 case "${target}" in
339 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
0e76460f 340 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
8c6d158a 341 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
ff4b7a7e 342 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
38e3d868
RM		 343 case "${target}" in
344 *-*-linux*aout* | *-*-linux*oldld*)
345 ;;
346 *)
347 is_elf=yes
348 ;;
349 esac
350 esac
351
352 if test "$is_elf" = "yes"; then
353 # Check for target supported by gold.
5afab7ad 354 case "${target}" in
7705dfd1 355 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
1b858e76 356 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
21539e2e
MK		 357 configdirs="$configdirs gold"
358 if test x${ENABLE_GOLD} = xdefault; then
359 default_ld=gold
360 fi
38e3d868 361 ENABLE_GOLD=yes
5afab7ad
ILT		 362 ;;
363 esac
38e3d868
RM		 364 fi
365 ;;
366 no)
367 ;;
368 *)
369 AC_MSG_ERROR([invalid --enable-gold argument])
370 ;;
21539e2e
MK		 371esac
372
373AC_ARG_ENABLE(ld,
33e39b66
AS		 374[AS_HELP_STRING([[--enable-ld[=ARG]]],
375 [build ld @<:@ARG={default,yes,no}@:>@])],
21539e2e
MK		 376ENABLE_LD=$enableval,
377ENABLE_LD=yes)
378
379case "${ENABLE_LD}" in
380 default)
9580395f 381 if test x${default_ld} != x; then
21539e2e
MK		 382 AC_MSG_ERROR([either gold or ld can be the default ld])
383 fi
384 ;;
385 yes)
386 ;;
387 no)
388 if test x${ENABLE_GOLD} != xyes; then
389 AC_MSG_WARN([neither ld nor gold are enabled])
390 fi
391 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
392 ;;
393 *)
394 AC_MSG_ERROR([invalid --enable-ld argument])
395 ;;
396esac
5afab7ad 397
78edb32f
L		 398# PR gas/19109
399# Decide the default method for compressing debug sections.
400# Provide a configure time option to override our default.
401AC_ARG_ENABLE(compressed_debug_sections,
324402a0 402[AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
78edb32f
L		 403 [Enable compressed debug sections for gas, gold or ld by
404 default])],
405[
406 if test x"$enable_compressed_debug_sections" = xyes; then
407 AC_MSG_ERROR([no program with compressed debug sections specified])
408 fi
409], [enable_compressed_debug_sections=])
410
6599da04
JM		 411# Configure extra directories which are host specific
412
413case "${host}" in
55380b08 414 *-cygwin*)
4977bab6 415 configdirs="$configdirs libtermcap" ;;
6599da04
JM		 416esac
417
4fab7234
HPN		 418# A target can indicate whether a language isn't supported for some reason.
419# Only spaces may be used in this macro; not newlines or tabs.
420unsupported_languages=
421
6599da04
JM		 422# Remove more programs from consideration, based on the host or
423# target this usually means that a port of the program doesn't
424# exist yet.
425
6599da04 426case "${host}" in
111eeb6e 427 i[[3456789]]86-*-msdosdjgpp*)
c9bdb152 428 noconfigdirs="$noconfigdirs tcl tk itcl"
5d4a5ee6 429 ;;
6599da04
JM		 430esac
431
6de9cd9a 432
87e6d9dc
TB		 433AC_ARG_ENABLE(libquadmath,
434AS_HELP_STRING([--disable-libquadmath],
435 [do not build libquadmath directory]),
436ENABLE_LIBQUADMATH=$enableval,
437ENABLE_LIBQUADMATH=yes)
438if test "${ENABLE_LIBQUADMATH}" = "no" ; then
439 noconfigdirs="$noconfigdirs target-libquadmath"
440fi
441
442
443AC_ARG_ENABLE(libquadmath-support,
444AS_HELP_STRING([--disable-libquadmath-support],
445 [disable libquadmath support for Fortran]),
446ENABLE_LIBQUADMATH_SUPPORT=$enableval,
447ENABLE_LIBQUADMATH_SUPPORT=yes)
448enable_libquadmath_support=
449if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
450 enable_libquadmath_support=no
451fi
452
453
d9cdb878 454AC_ARG_ENABLE(libada,
33e39b66 455[AS_HELP_STRING([--enable-libada], [build libada directory])],
d9cdb878
AC		 456ENABLE_LIBADA=$enableval,
457ENABLE_LIBADA=yes)
458if test "${ENABLE_LIBADA}" != "yes" ; then
5395b47b 459 noconfigdirs="$noconfigdirs gnattools"
d9cdb878
AC		 460fi
461
ef0087a7 462AC_ARG_ENABLE(libssp,
33e39b66 463[AS_HELP_STRING([--enable-libssp], [build libssp directory])],
ef0087a7
KH		 464ENABLE_LIBSSP=$enableval,
465ENABLE_LIBSSP=yes)
ef0087a7 466
2588b26e
RM		 467AC_ARG_ENABLE(libstdcxx,
468AS_HELP_STRING([--disable-libstdcxx],
469 [do not build libstdc++-v3 directory]),
470ENABLE_LIBSTDCXX=$enableval,
471ENABLE_LIBSTDCXX=default)
472[if test "${ENABLE_LIBSTDCXX}" = "no" ; then
1007a55c 473 noconfigdirs="$noconfigdirs target-libstdc++-v3"
2588b26e
RM		 474fi]
475
5f520819
KY		 476# If this is accelerator compiler and its target is intelmic we enable
477# target liboffloadmic by default. If this is compiler with offloading
478# for intelmic we enable host liboffloadmic by default. Otherwise
479# liboffloadmic is disabled by default.
480AC_ARG_ENABLE([liboffloadmic],
481AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
482 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
483[case "$enableval" in
484 no | host | target)
485 enable_liboffloadmic=$enableval ;;
486 *)
487 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
488esac],
4b4f2e35 489[if test x"$enable_as_accelerator_for" != x; then
5f520819
KY		 490 case "${target}" in
491 *-intelmic-* | *-intelmicemul-*)
492 enable_liboffloadmic=target
493 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
494 ;;
495 *)
496 enable_liboffloadmic=no
497 ;;
498 esac
499else
500 case "${enable_offload_targets}" in
501 *-intelmic-* | *-intelmicemul-*)
502 enable_liboffloadmic=host
503 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
504 ;;
505 *)
506 enable_liboffloadmic=no
507 ;;
508 esac
509fi])
510AC_SUBST(extra_liboffloadmic_configure_flags)
511
44a7d18d 512# Enable libgomp by default on hosted POSIX systems, and a few others.
27079765 513if test x$enable_libgomp = x ; then
953ff289 514 case "${target}" in
416ac4d4 515 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
953ff289 516 ;;
8c6d158a 517 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
953ff289 518 ;;
b24513a1 519 *-*-solaris2* | *-*-hpux11*)
953ff289 520 ;;
cac90078 521 *-*-darwin* | *-*-aix*)
953ff289 522 ;;
29b1533a 523 nvptx*-*-* | amdgcn*-*-*)
44a7d18d 524 ;;
953ff289
DN		 525 *)
526 noconfigdirs="$noconfigdirs target-libgomp"
527 ;;
528 esac
27079765 529fi
953ff289 530
48310492
RH		 531# Disable libatomic on unsupported systems.
532if test -d ${srcdir}/libatomic; then
533 if test x$enable_libatomic = x; then
534 AC_MSG_CHECKING([for libatomic support])
535 if (srcdir=${srcdir}/libatomic; \
536 . ${srcdir}/configure.tgt; \
537 test -n "$UNSUPPORTED")
538 then
539 AC_MSG_RESULT([no])
540 noconfigdirs="$noconfigdirs target-libatomic"
541 else
542 AC_MSG_RESULT([yes])
543 fi
544 fi
545fi
546
5f520819
KY		 547# Disable liboffloadmic on unsupported systems.
548if test -d ${srcdir}/liboffloadmic; then
549 if test x$enable_liboffloadmic != xno; then
550 AC_MSG_CHECKING([for liboffloadmic support])
551 if (srcdir=${srcdir}/liboffloadmic; \
552 . ${srcdir}/configure.tgt; \
553 test -n "$UNSUPPORTED")
554 then
555 AC_MSG_RESULT([no])
556 noconfigdirs="$noconfigdirs target-liboffloadmic"
557 else
558 AC_MSG_RESULT([yes])
559 fi
560 fi
561fi
562
e948157d
RH		 563# Disable libitm on unsupported systems.
564if test -d ${srcdir}/libitm; then
565 if test x$enable_libitm = x; then
566 AC_MSG_CHECKING([for libitm support])
567 if (srcdir=${srcdir}/libitm; \
568 . ${srcdir}/configure.tgt; \
569 test -n "$UNSUPPORTED")
570 then
571 AC_MSG_RESULT([no])
572 noconfigdirs="$noconfigdirs target-libitm"
573 else
574 AC_MSG_RESULT([yes])
575 fi
576 fi
0a35513e
AH		 577fi
578
93bf5390
RH		 579# Disable libsanitizer on unsupported systems.
580if test -d ${srcdir}/libsanitizer; then
581 if test x$enable_libsanitizer = x; then
582 AC_MSG_CHECKING([for libsanitizer support])
583 if (srcdir=${srcdir}/libsanitizer; \
584 . ${srcdir}/configure.tgt; \
585 test -n "$UNSUPPORTED")
586 then
587 AC_MSG_RESULT([no])
588 noconfigdirs="$noconfigdirs target-libsanitizer"
589 else
590 AC_MSG_RESULT([yes])
591 fi
592 fi
593fi
594
2077db1b
CT		 595# Disable libvtv on unsupported systems.
596if test -d ${srcdir}/libvtv; then
597 if test x$enable_libvtv = x; then
598 AC_MSG_CHECKING([for libvtv support])
599 if (srcdir=${srcdir}/libvtv; \
600 . ${srcdir}/configure.tgt; \
1e74b850 601 test "$VTV_SUPPORTED" != "yes")
2077db1b
CT		 602 then
603 AC_MSG_RESULT([no])
604 noconfigdirs="$noconfigdirs target-libvtv"
605 else
606 AC_MSG_RESULT([yes])
607 fi
608 fi
609fi
610
d7a29167
DE		 611# Disable libquadmath for some systems.
612case "${target}" in
e7fae550
DE		 613 avr-*-*)
614 noconfigdirs="$noconfigdirs target-libquadmath"
615 ;;
d7a29167
DE		 616 # libquadmath is unused on AIX and libquadmath build process use of
617 # LD_LIBRARY_PATH can break AIX bootstrap.
618 powerpc-*-aix* | rs6000-*-aix*)
619 noconfigdirs="$noconfigdirs target-libquadmath"
620 ;;
621esac
622
1e9e0e23
JM		 623# Disable libssp for some systems.
624case "${target}" in
625 avr-*-*)
b318fb4b 626 # No hosted I/O support.
1e9e0e23
JM		 627 noconfigdirs="$noconfigdirs target-libssp"
628 ;;
91dfef96
JM		 629 bpf-*-*)
630 noconfigdirs="$noconfigdirs target-libssp"
631 ;;
1e9e0e23
JM		 632 powerpc-*-aix* | rs6000-*-aix*)
633 noconfigdirs="$noconfigdirs target-libssp"
634 ;;
8d2af3a2
DD		 635 pru-*-*)
636 # No hosted I/O support.
637 noconfigdirs="$noconfigdirs target-libssp"
638 ;;
85b8555e
DD		 639 rl78-*-*)
640 # libssp uses a misaligned load to trigger a fault, but the RL78
641 # doesn't fault for those - instead, it gives a build-time error
642 # for explicit misaligned loads.
643 noconfigdirs="$noconfigdirs target-libssp"
644 ;;
0969ec7d
EB		 645 visium-*-*)
646 # No hosted I/O support.
647 noconfigdirs="$noconfigdirs target-libssp"
648 ;;
1e9e0e23
JM		 649esac
650
1e9e0e23 651# Disable libstdc++-v3 for some systems.
2588b26e
RM		 652# Allow user to override this if they pass --enable-libstdc++-v3
653if test "${ENABLE_LIBSTDCXX}" = "default" ; then
654 case "${target}" in
655 *-*-vxworks*)
656 # VxWorks uses the Dinkumware C++ library.
657 noconfigdirs="$noconfigdirs target-libstdc++-v3"
658 ;;
afa3d80e
TS		 659 amdgcn*-*-*)
660 # Not ported/fails to build when using newlib.
661 noconfigdirs="$noconfigdirs target-libstdc++-v3"
662 ;;
2588b26e
RM		 663 arm*-wince-pe*)
664 # the C++ libraries don't build on top of CE's C libraries
665 noconfigdirs="$noconfigdirs target-libstdc++-v3"
666 ;;
667 avr-*-*)
668 noconfigdirs="$noconfigdirs target-libstdc++-v3"
669 ;;
91dfef96
JM		 670 bpf-*-*)
671 noconfigdirs="$noconfigdirs target-libstdc++-v3"
672 ;;
fef939d6
JB		 673 ft32-*-*)
674 noconfigdirs="$noconfigdirs target-libstdc++-v3"
675 ;;
2588b26e
RM		 676 esac
677fi
1e9e0e23 678
91dfef96
JM		 679# Disable C++ on systems where it is known to not work.
680# For testing, you can override this with --enable-languages=c++.
681case ,${enable_languages}, in
682 *,c++,*)
683 ;;
684 *)
685 case "${target}" in
686 bpf-*-*)
687 unsupported_languages="$unsupported_languages c++"
688 ;;
689 esac
690 ;;
691esac
692
693# Disable Objc on systems where it is known to not work.
694# For testing, you can override this with --enable-languages=objc.
695case ,${enable_languages}, in
696 *,objc,*)
697 ;;
698 *)
699 case "${target}" in
700 bpf-*-*)
701 unsupported_languages="$unsupported_languages objc"
702 ;;
703 esac
704 ;;
705esac
706
260eedb9
IB		 707# Disable D on systems where it is known to not work.
708# For testing, you can override this with --enable-languages=d.
709case ,${enable_languages}, in
710 *,d,*)
711 ;;
712 *)
713 case "${target}" in
91dfef96 714 bpf-*-*)
260eedb9
IB		 715 unsupported_languages="$unsupported_languages d"
716 ;;
717 esac
718 ;;
719esac
720
721# Disable libphobos on unsupported systems.
722# For testing, you can override this with --enable-libphobos.
723if test -d ${srcdir}/libphobos; then
724 if test x$enable_libphobos = x; then
725 AC_MSG_CHECKING([for libphobos support])
726 if (srcdir=${srcdir}/libphobos; \
727 . ${srcdir}/configure.tgt; \
7d31d331 728 test "$LIBPHOBOS_SUPPORTED" != "yes")
260eedb9
IB		 729 then
730 AC_MSG_RESULT([no])
731 noconfigdirs="$noconfigdirs target-libphobos"
732 else
733 AC_MSG_RESULT([yes])
734 fi
735 fi
736fi
737
1e9e0e23
JM		 738# Disable Fortran for some systems.
739case "${target}" in
740 mmix-*-*)
741 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
742 unsupported_languages="$unsupported_languages fortran"
743 ;;
91dfef96
JM		 744 bpf-*-*)
745 unsupported_languages="$unsupported_languages fortran"
746 ;;
1e9e0e23
JM		 747esac
748
012447ea
JJ		 749# Disable libffi for some systems.
750case "${target}" in
751 powerpc-*-darwin*)
752 ;;
753 i[[3456789]]86-*-darwin*)
754 ;;
755 x86_64-*-darwin[[912]]*)
756 ;;
757 *-*-darwin*)
758 noconfigdirs="$noconfigdirs target-libffi"
759 ;;
760 *-*-netware*)
761 noconfigdirs="$noconfigdirs target-libffi"
762 ;;
763 *-*-phoenix*)
764 noconfigdirs="$noconfigdirs target-libffi"
765 ;;
766 *-*-rtems*)
767 noconfigdirs="$noconfigdirs target-libffi"
768 ;;
769 *-*-tpf*)
770 noconfigdirs="$noconfigdirs target-libffi"
771 ;;
772 *-*-uclinux*)
773 noconfigdirs="$noconfigdirs target-libffi"
774 ;;
775 *-*-vxworks*)
776 noconfigdirs="$noconfigdirs target-libffi"
777 ;;
b20e7532
AT		 778 aarch64*-*-freebsd*)
779 noconfigdirs="$noconfigdirs target-libffi"
780 ;;
012447ea
JJ		 781 alpha*-*-*vms*)
782 noconfigdirs="$noconfigdirs target-libffi"
783 ;;
784 arm*-*-freebsd*)
785 noconfigdirs="$noconfigdirs target-libffi"
786 ;;
787 arm-wince-pe)
788 noconfigdirs="$noconfigdirs target-libffi"
789 ;;
790 arm*-*-symbianelf*)
791 noconfigdirs="$noconfigdirs target-libffi"
792 ;;
91dfef96
JM		 793 bpf-*-*)
794 noconfigdirs="$noconfigdirs target-libffi"
795 ;;
012447ea
JJ		 796 cris-*-* | crisv32-*-*)
797 case "${target}" in
798 *-*-linux*)
799 ;;
800 *) # See PR46792 regarding target-libffi.
801 noconfigdirs="$noconfigdirs target-libffi";;
802 esac
803 ;;
804 hppa*64*-*-hpux*)
805 noconfigdirs="$noconfigdirs target-libffi"
806 ;;
807 hppa*-hp-hpux11*)
808 ;;
809 hppa*-*-hpux*)
810 noconfigdirs="$noconfigdirs target-libffi"
811 ;;
812 ia64*-*-*vms*)
813 noconfigdirs="$noconfigdirs target-libffi"
814 ;;
815 i[[3456789]]86-w64-mingw*)
816 noconfigdirs="$noconfigdirs target-libffi"
817 ;;
818 i[[3456789]]86-*-mingw*)
819 noconfigdirs="$noconfigdirs target-libffi"
820 ;;
821 x86_64-*-mingw*)
822 noconfigdirs="$noconfigdirs target-libffi"
823 ;;
824 mmix-*-*)
825 noconfigdirs="$noconfigdirs target-libffi"
826 ;;
827 powerpc-*-aix*)
012447ea
JJ		 828 ;;
829 rs6000-*-aix*)
012447ea
JJ		 830 ;;
831 ft32-*-*)
832 noconfigdirs="$noconfigdirs target-libffi"
833 ;;
834 *-*-lynxos*)
835 noconfigdirs="$noconfigdirs target-libffi"
836 ;;
837esac
838
839# Disable the go frontend on systems where it is known to not work. Please keep
840# this in sync with contrib/config-list.mk.
841case "${target}" in
91dfef96 842*-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
012447ea
JJ		 843 unsupported_languages="$unsupported_languages go"
844 ;;
845esac
846
f9d09df0
TT		 847# Only allow gdbserver on some systems.
848if test -d ${srcdir}/gdbserver; then
849 if test x$enable_gdbserver = x; then
850 AC_MSG_CHECKING([for gdbserver support])
851 if (srcdir=${srcdir}/gdbserver; \
852 . ${srcdir}/configure.srv; \
853 test -n "$UNSUPPORTED")
854 then
855 AC_MSG_RESULT([no])
856 noconfigdirs="$noconfigdirs gdbserver"
857 else
858 AC_MSG_RESULT([yes])
859 fi
860 fi
861fi
862
cdbc9e92
ILT		 863# Disable libgo for some systems where it is known to not work.
864# For testing, you can easily override this with --enable-libgo.
865if test x$enable_libgo = x; then
866 case "${target}" in
867 *-*-darwin*)
868 # PR 46986
869 noconfigdirs="$noconfigdirs target-libgo"
870 ;;
871 *-*-cygwin* | *-*-mingw*)
872 noconfigdirs="$noconfigdirs target-libgo"
873 ;;
91dfef96
JM		 874 bpf-*-*)
875 noconfigdirs="$noconfigdirs target-libgo"
876 ;;
cdbc9e92
ILT		 877 esac
878fi
879
c03353e2
RIL		 880# Default libgloss CPU subdirectory.
881libgloss_dir="$target_cpu"
6de9cd9a 882
fbcf0dca
JM		 883case "${target}" in
884 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
885 libgloss_dir=wince
886 ;;
4dddfc74
YZ		 887 aarch64*-*-* )
888 libgloss_dir=aarch64
889 ;;
fbcf0dca
JM		 890 arm*-*-*)
891 libgloss_dir=arm
892 ;;
893 cris-*-* | crisv32-*-*)
894 libgloss_dir=cris
895 ;;
896 hppa*-*-*)
897 libgloss_dir=pa
898 ;;
899 i[[3456789]]86-*-*)
900 libgloss_dir=i386
901 ;;
902 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
903 libgloss_dir=m68hc11
904 ;;
905 m68*-*-* | fido-*-*)
906 libgloss_dir=m68k
907 ;;
908 mips*-*-*)
909 libgloss_dir=mips
910 ;;
911 powerpc*-*-*)
912 libgloss_dir=rs6000
913 ;;
8d2af3a2
DD		 914 pru-*-*)
915 libgloss_dir=pru
916 ;;
fbcf0dca
JM		 917 sparc*-*-*)
918 libgloss_dir=sparc
919 ;;
920esac
921
6a789d5e 922# Disable newlib and libgloss for various target OSes.
6599da04 923case "${target}" in
6a789d5e
JM		 924 alpha*-dec-osf*)
925 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
926 ;;
927 i[[3456789]]86-*-linux*)
928 # This section makes it possible to build newlib natively on linux.
929 # If we are using a cross compiler then don't configure newlib.
930 if test x${is_cross_compiler} != xno ; then
931 noconfigdirs="$noconfigdirs target-newlib"
932 fi
933 noconfigdirs="$noconfigdirs target-libgloss"
934 # If we are not using a cross compiler, do configure newlib.
935 # Note however, that newlib will only be configured in this situation
936 # if the --with-newlib option has been given, because otherwise
937 # 'target-newlib' will appear in skipdirs.
938 ;;
939 i[[3456789]]86-*-rdos*)
940 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
941 ;;
942 sh*-*-pe|mips*-*-pe|arm-wince-pe)
943 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
944 ;;
945 sparc-*-sunos4*)
946 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
947 ;;
91dfef96
JM		 948 bpf-*-*)
949 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
950 ;;
6a789d5e
JM		 951 *-*-aix*)
952 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
953 ;;
954 *-*-beos*)
955 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
956 ;;
3fa03ff9 957 *-*-chorusos)
0036370f 958 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
3fa03ff9 959 ;;
6a789d5e
JM		 960 *-*-dragonfly*)
961 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
962 ;;
963 *-*-freebsd*)
964 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
965 ;;
966 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
967 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
968 ;;
969 *-*-lynxos*)
970 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
971 ;;
972 *-*-mingw*)
973 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
974 ;;
975 *-*-netbsd*)
976 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
977 ;;
978 *-*-netware*)
979 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
980 ;;
981 *-*-tpf*)
982 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
983 ;;
984 *-*-uclinux*)
985 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
986 ;;
987 *-*-vxworks*)
988 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
989 ;;
990esac
991
992case "${target}" in
993 *-*-chorusos)
994 ;;
3be96231
TG		 995 aarch64-*-darwin*)
996 noconfigdirs="$noconfigdirs ld gas gdb gprof"
997 noconfigdirs="$noconfigdirs sim target-rda"
998 ;;
7431c1a1
AS		 999 amdgcn*-*-*)
1000 ;;
3be96231
TG		 1001 arm-*-darwin*)
1002 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1003 noconfigdirs="$noconfigdirs sim target-rda"
1004 ;;
75eeae1a 1005 powerpc-*-darwin*)
e1514c3f 1006 noconfigdirs="$noconfigdirs ld gas gdb gprof"
9c8f9ec2 1007 noconfigdirs="$noconfigdirs sim target-rda"
940cde4d 1008 ;;
354ebf88
RW		 1009 i[[3456789]]86-*-darwin*)
1010 noconfigdirs="$noconfigdirs ld gprof"
1011 noconfigdirs="$noconfigdirs sim target-rda"
1012 ;;
1013 x86_64-*-darwin[[912]]*)
0db3a858
TG		 1014 noconfigdirs="$noconfigdirs ld gas gprof"
1015 noconfigdirs="$noconfigdirs sim target-rda"
1016 ;;
42c1cd8a
AT		 1017 *-*-darwin*)
1018 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1019 noconfigdirs="$noconfigdirs sim target-rda"
42c1cd8a 1020 ;;
8c6d158a 1021 *-*-dragonfly*)
8c6d158a 1022 ;;
c3f84f61 1023 *-*-freebsd*)
6de9cd9a 1024 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
c0d0a722 1025 && ! test -d ${srcdir}/gmp \
6de9cd9a
DN		 1026 && test -f /usr/local/include/gmp.h; then
1027 with_gmp=/usr/local
1028 fi
6de9cd9a 1029 ;;
ef4e7569
US		 1030 *-*-kaos*)
1031 # Remove unsupported stuff on all kaOS configurations.
ef4e7569
US		 1032 noconfigdirs="$noconfigdirs target-libgloss"
1033 ;;
51584787 1034 *-*-netbsd*)
51584787 1035 ;;
61fec9ff 1036 *-*-netware*)
6599da04 1037 ;;
fd6487af
JS		 1038 *-*-phoenix*)
1039 noconfigdirs="$noconfigdirs target-libgloss"
1040 ;;
3fbc0b70 1041 *-*-rtems*)
2909494b 1042 noconfigdirs="$noconfigdirs target-libgloss"
3fbc0b70 1043 ;;
a8ba31f2
EC		 1044 # The tpf target doesn't support gdb yet.
1045 *-*-tpf*)
6a789d5e 1046 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
a8ba31f2 1047 ;;
5785c0ed 1048 *-*-uclinux*)
6a789d5e 1049 noconfigdirs="$noconfigdirs target-rda"
5785c0ed 1050 ;;
6599da04 1051 *-*-vxworks*)
6599da04 1052 ;;
b104e095 1053 alpha*-dec-osf*)
603606e7 1054 # ld works, but does not support shared libraries.
6599da04 1055 # gas doesn't generate exception information.
6a789d5e 1056 noconfigdirs="$noconfigdirs gas ld"
6599da04
JM		 1057 ;;
1058 alpha*-*-*vms*)
2909494b 1059 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
6599da04
JM		 1060 ;;
1061 alpha*-*-*)
1062 # newlib is not 64 bit ready
2909494b 1063 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1064 ;;
91dfef96
JM		 1065 bpf-*-*)
1066 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1067 ;;
3a685f6f 1068 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
b4f96efe 1069 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
3a685f6f 1070 ;;
2fd88f4f
AK		 1071 arc*-*-*)
1072 noconfigdirs="$noconfigdirs sim"
1073 ;;
6599da04 1074 arm-*-pe*)
2909494b 1075 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1076 ;;
5d4a5ee6 1077 arm-*-riscix*)
0036370f 1078 noconfigdirs="$noconfigdirs ld target-libgloss"
5d4a5ee6 1079 ;;
b588ae30
GJL		 1080 avr-*-*)
1081 if test x${with_avrlibc} != xno; then
1082 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1083 fi
1084 ;;
a5a438f5 1085 c4x-*-* | tic4x-*-*)
0036370f 1086 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1087 ;;
0036370f
JM		 1088 tic54x-*-*)
1089 noconfigdirs="$noconfigdirs target-libgloss gdb"
ab50d72b 1090 ;;
6599da04 1091 d10v-*-*)
0036370f 1092 noconfigdirs="$noconfigdirs target-libgloss"
d207ebef
JM		 1093 ;;
1094 d30v-*-*)
0036370f 1095 noconfigdirs="$noconfigdirs gdb"
6599da04 1096 ;;
09b5f8bf 1097 fr30-*-elf*)
2909494b 1098 noconfigdirs="$noconfigdirs gdb"
09b5f8bf 1099 ;;
a05c2c75
L		 1100 ft32-*-*)
1101 noconfigdirs="$noconfigdirs target-rda gprof"
1102 ;;
55f2d967 1103 moxie-*-*)
a05c2c75 1104 noconfigdirs="$noconfigdirs"
55f2d967 1105 ;;
ab50d72b 1106 h8300*-*-*)
2909494b 1107 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1108 ;;
6599da04 1109 h8500-*-*)
0036370f 1110 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1111 ;;
9d069a4f 1112 hppa1.1-*-osf* | hppa1.1-*-bsd* )
9d069a4f 1113 ;;
a05c2c75
L		 1114 hppa*64*-*-hpux*)
1115 noconfigdirs="$noconfigdirs gdb"
1116 ;;
1117 hppa*-*-hpux11*)
1118 noconfigdirs="$noconfigdirs gdb ld"
1119 ;;
4569f85e 1120 hppa*64*-*-linux*)
cdbff0ab 1121 ;;
56f8587a 1122 hppa*-*-linux*)
3e732ba0 1123 ;;
6599da04 1124 hppa*-*-*elf* | \
bae29210 1125 hppa*-*-lites* | \
66350331 1126 hppa*-*-openbsd* | \
bae29210 1127 hppa*64*-*-*)
6599da04 1128 ;;
c03353e2 1129 hppa*-*-pro*)
c03353e2 1130 ;;
6599da04 1131 hppa*-*-*)
2909494b 1132 noconfigdirs="$noconfigdirs ld"
d207ebef 1133 ;;
fb87ad5d 1134 i960-*-*)
0036370f 1135 noconfigdirs="$noconfigdirs gdb"
fb87ad5d 1136 ;;
d207ebef
JM		 1137 ia64*-*-elf*)
1138 # No gdb support yet.
1bcce263 1139 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
d207ebef 1140 ;;
ab50d72b 1141 ia64*-**-hpux*)
5a2931d1 1142 # No ld support yet.
a05c2c75 1143 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
ab50d72b 1144 ;;
52535a64 1145 ia64*-*-*vms*)
091fe9ca
TG		 1146 # No ld support yet.
1147 noconfigdirs="$noconfigdirs libgui itcl ld"
52535a64 1148 ;;
ef4c4300 1149 i[[3456789]]86-w64-mingw*)
ef4c4300
KT		 1150 ;;
1151 i[[3456789]]86-*-mingw*)
b91f0a41 1152 target_configdirs="$target_configdirs target-winsup"
5d571eaa 1153 ;;
d207ebef
JM		 1154 *-*-cygwin*)
1155 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1bcce263 1156 noconfigdirs="$noconfigdirs target-libgloss"
801e2270 1157 # always build newlib if winsup directory is present.
b91f0a41 1158 if test -d "$srcdir/winsup/cygwin"; then
801e2270 1159 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
c8e6cd41 1160 elif test -d "$srcdir/newlib"; then
b91f0a41 1161 echo "Warning: winsup/cygwin is missing so newlib can't be built."
801e2270 1162 fi
5d571eaa 1163 ;;
f2a0e225 1164 i[[3456789]]86-*-pe)
ebb9f8b0 1165 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1166 ;;
f2a0e225 1167 i[[3456789]]86-*-sco3.2v5*)
6599da04
JM		 1168 # The linker does not yet know about weak symbols in COFF,
1169 # and is not configured to handle mixed ELF and COFF.
0036370f 1170 noconfigdirs="$noconfigdirs ld target-libgloss"
6599da04 1171 ;;
f2a0e225 1172 i[[3456789]]86-*-sco*)
0036370f 1173 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1174 ;;
fbdd5d87 1175 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
7c01b2b5 1176 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1177 ;;
f2a0e225 1178 i[[3456789]]86-*-sysv4*)
0036370f 1179 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1180 ;;
f2a0e225 1181 i[[3456789]]86-*-beos*)
6a789d5e 1182 noconfigdirs="$noconfigdirs gdb"
3aa83176 1183 ;;
d1f8db0c 1184 i[[3456789]]86-*-rdos*)
6a789d5e 1185 noconfigdirs="$noconfigdirs gdb"
c03353e2 1186 ;;
d344dce9 1187 mmix-*-*)
2909494b 1188 noconfigdirs="$noconfigdirs gdb"
d344dce9 1189 ;;
ab34901f 1190 mt-*-*)
79dd769c
AH		 1191 noconfigdirs="$noconfigdirs sim"
1192 ;;
58b40a67
FT		 1193 nfp-*-*)
1194 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1195 noconfigdirs="$noconfigdirs $target_libraries"
1196 ;;
e6cbe965
SC		 1197 pdp11-*-*)
1198 noconfigdirs="$noconfigdirs gdb gprof"
1199 ;;
6599da04
JM		 1200 powerpc-*-aix*)
1201 # copied from rs6000-*-* entry
6a789d5e 1202 noconfigdirs="$noconfigdirs gprof"
6599da04 1203 ;;
4569f85e 1204 powerpc*-*-winnt* | powerpc*-*-pe*)
6599da04 1205 target_configdirs="$target_configdirs target-winsup"
0036370f 1206 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
6599da04
JM		 1207 # always build newlib.
1208 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1209 ;;
1210 # This is temporary until we can link against shared libraries
1211 powerpcle-*-solaris*)
0036370f 1212 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
6599da04 1213 ;;
0da3b5a7 1214 powerpc-*-beos*)
6a789d5e 1215 noconfigdirs="$noconfigdirs gdb"
d207ebef 1216 ;;
6599da04 1217 rs6000-*-lynxos*)
6a789d5e 1218 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1219 ;;
1220 rs6000-*-aix*)
6a789d5e 1221 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1222 ;;
1223 rs6000-*-*)
2909494b 1224 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1225 ;;
1226 m68k-apollo-*)
0036370f 1227 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
6599da04 1228 ;;
ca9fe997 1229 microblaze*)
2909494b 1230 noconfigdirs="$noconfigdirs gprof"
ca9fe997 1231 ;;
74ae587e 1232 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
d9dced13
RS		 1233 if test x$with_newlib = xyes; then
1234 noconfigdirs="$noconfigdirs gprof"
1235 fi
d9dced13 1236 ;;
6599da04 1237 mips*-*-irix5*)
0036370f 1238 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04
JM		 1239 ;;
1240 mips*-*-irix6*)
2909494b 1241 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1242 ;;
6599da04 1243 mips*-*-bsd*)
bc98bcc4 1244 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
6599da04 1245 ;;
9bec4bf0 1246 mips*-*-linux*)
9bec4bf0 1247 ;;
bc98bcc4
JBG		 1248 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1249 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1250 noconfigdirs="$noconfigdirs ld gas gprof"
1251 ;;
6599da04 1252 mips*-*-*)
2909494b 1253 noconfigdirs="$noconfigdirs gprof"
6599da04 1254 ;;
738f2522 1255 nvptx*-*-*)
738f2522
BS		 1256 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1257 ;;
bc6d9014 1258 sh-*-*)
ea2002ba
CB		 1259 case "${target}" in
1260 sh*-*-elf)
2909494b 1261 ;;
ea2002ba 1262 *)
2909494b 1263 noconfigdirs="$noconfigdirs target-libgloss" ;;
ea2002ba 1264 esac
6599da04
JM		 1265 ;;
1266 sparc-*-sunos4*)
6a789d5e 1267 if test x${is_cross_compiler} = xno ; then
6599da04
JM		 1268 use_gnu_ld=no
1269 fi
1270 ;;
b42f0d7e 1271 tic6x-*-*)
0d557ff8 1272 noconfigdirs="$noconfigdirs sim"
b42f0d7e 1273 ;;
341c653c 1274 tilepro*-*-* | tilegx*-*-*)
db1d217c
WL		 1275 noconfigdirs="$noconfigdirs sim"
1276 ;;
6599da04 1277 v810-*-*)
0036370f 1278 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
6599da04
JM		 1279 ;;
1280 vax-*-*)
2909494b 1281 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1282 ;;
1fc1d82e
MR		 1283 wasm32-*-*)
1284 noconfigdirs="$noconfigdirs ld"
1285 ;;
6599da04
JM		 1286esac
1287
6599da04
JM		 1288# If we aren't building newlib, then don't build libgloss, since libgloss
1289# depends upon some newlib header files.
1290case "${noconfigdirs}" in
1291 *target-libgloss*) ;;
1292 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
55380b08 1293esac
6599da04 1294
55380b08 1295# Work in distributions that contain no compiler tools, like Autoconf.
671aa708 1296host_makefile_frag=/dev/null
55380b08
NN		 1297if test -d ${srcdir}/config ; then
1298case "${host}" in
f2a0e225 1299 i[[3456789]]86-*-msdosdjgpp*)
55380b08
NN		 1300 host_makefile_frag="config/mh-djgpp"
1301 ;;
1302 *-cygwin*)
2a79c47f 1303 ACX_CHECK_CYGWIN_CAT_WORKS
55380b08
NN		 1304 host_makefile_frag="config/mh-cygwin"
1305 ;;
c53a18d3 1306 *-mingw*)
1f5a6b84 1307 host_makefile_frag="config/mh-mingw"
738a52d3 1308 ;;
cabb9d59 1309 alpha*-linux*)
13be44ed
UB		 1310 host_makefile_frag="config/mh-alpha-linux"
1311 ;;
00afcaa0 1312 hppa*-hp-hpux10*)
00afcaa0 1313 host_makefile_frag="config/mh-pa-hpux10"
55380b08 1314 ;;
111eeb6e 1315 hppa*-hp-hpux*)
00afcaa0
PB		 1316 host_makefile_frag="config/mh-pa"
1317 ;;
1318 hppa*-*)
1319 host_makefile_frag="config/mh-pa"
1320 ;;
54258e22 1321 i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*)
d8ed14ce 1322 host_makefile_frag="config/mh-darwin"
be8fff81 1323 ;;
d19bca38
PB		 1324 powerpc-*-aix*)
1325 host_makefile_frag="config/mh-ppc-aix"
1326 ;;
1327 rs6000-*-aix*)
1328 host_makefile_frag="config/mh-ppc-aix"
1329 ;;
55380b08
NN		 1330esac
1331fi
1332
e4c9c075 1333if test "${build}" != "${host}" ; then
0999159b
PB		 1334 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1335 AS_FOR_BUILD=${AS_FOR_BUILD-as}
e4c9c075 1336 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
c841dc0a 1337 CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}"
0999159b 1338 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
3b5e8ee4 1339 DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil}
0999159b 1340 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
632e2a07 1341 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
b4c522fa 1342 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
0999159b
PB		 1343 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1344 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1345 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1346 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1347 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1348 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
e4c9c075 1349else
0999159b
PB		 1350 AR_FOR_BUILD="\$(AR)"
1351 AS_FOR_BUILD="\$(AS)"
e4c9c075 1352 CC_FOR_BUILD="\$(CC)"
0999159b 1353 CXX_FOR_BUILD="\$(CXX)"
3b5e8ee4 1354 DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)"
0999159b 1355 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
632e2a07 1356 GOC_FOR_BUILD="\$(GOC)"
b4c522fa 1357 GDC_FOR_BUILD="\$(GDC)"
0999159b
PB		 1358 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1359 LD_FOR_BUILD="\$(LD)"
1360 NM_FOR_BUILD="\$(NM)"
1361 RANLIB_FOR_BUILD="\$(RANLIB)"
1362 WINDRES_FOR_BUILD="\$(WINDRES)"
1363 WINDMC_FOR_BUILD="\$(WINDMC)"
c3a86da9 1364fi
e4c9c075 1365
91743432 1366AC_PROG_CC_C99
c3a86da9
DJ		 1367AC_PROG_CXX
1368
1369# We must set the default linker to the linker used by gcc for the correct
1370# operation of libtool. If LD is not defined and we are using gcc, try to
1371# set the LD default to the ld used by gcc.
1372if test -z "$LD"; then
1373 if test "$GCC" = yes; then
1374 case $build in
1375 *-*-mingw*)
1376 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1377 *)
1378 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1379 esac
1380 case $gcc_prog_ld in
1381 # Accept absolute paths.
1382 [[\\/]* | [A-Za-z]:[\\/]*)]
1383 LD="$gcc_prog_ld" ;;
1384 esac
1385 fi
e4c9c075
PB		 1386fi
1387
0b21f5d3
EB		 1388# Check whether -static-libstdc++ -static-libgcc is supported.
1389have_static_libs=no
1390if test "$GCC" = yes; then
1391 saved_LDFLAGS="$LDFLAGS"
1392
1393 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1394 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1395 AC_LANG_PUSH(C++)
22e05272 1396 AC_LINK_IFELSE([AC_LANG_SOURCE([
0d6414b2
EB		 1397#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1398#error -static-libstdc++ not implemented
1399#endif
22e05272 1400int main() {}])],
0b21f5d3
EB		 1401 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1402 [AC_MSG_RESULT([no])])
1403 AC_LANG_POP(C++)
1404
1405 LDFLAGS="$saved_LDFLAGS"
1406fi
1407
e4c9c075 1408ACX_PROG_GNAT
5fee5ec3 1409ACX_PROG_GDC
a76494aa 1410ACX_PROG_CMP_IGNORE_INITIAL
e4c9c075 1411
ff3ac0f4
ILT		 1412AC_ARG_ENABLE([bootstrap],
1413[AS_HELP_STRING([--enable-bootstrap],
1414 [enable bootstrapping @<:@yes if native build@:>@])],,
1415enable_bootstrap=default)
1416
1417# Issue errors and warnings for invalid/strange bootstrap combinations.
bf03b9ff
ILT		 1418if test -r $srcdir/gcc/configure; then
1419 have_compiler=yes
1420else
1421 have_compiler=no
1422fi
ff3ac0f4
ILT		 1423
1424case "$have_compiler:$host:$target:$enable_bootstrap" in
1425 *:*:*:no) ;;
1426
1427 # Default behavior. Enable bootstrap if we have a compiler
1428 # and we are in a native configuration.
1429 yes:$build:$build:default)
1430 enable_bootstrap=yes ;;
1431
1432 *:*:*:default)
1433 enable_bootstrap=no ;;
1434
1435 # We have a compiler and we are in a native configuration, bootstrap is ok
1436 yes:$build:$build:yes)
1437 ;;
1438
1439 # Other configurations, but we have a compiler. Assume the user knows
1440 # what he's doing.
1441 yes:*:*:yes)
1442 AC_MSG_WARN([trying to bootstrap a cross compiler])
1443 ;;
1444
1445 # No compiler: if they passed --enable-bootstrap explicitly, fail
1446 no:*:*:yes)
1447 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1448
1449 # Fail if wrong command line
1450 *)
1451 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1452 ;;
1453esac
1454
5329b59a 1455# When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
ffac9597
JM		 1456# C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1457# require C++11 (or higher).
46070488 1458if test "$enable_bootstrap:$GXX" = "yes:yes"; then
5329b59a 1459 CXX="$CXX -std=c++11"
ffac9597
JM		 1460elif test "$have_compiler" = yes; then
1461 AX_CXX_COMPILE_STDCXX(11)
7ffcf5d6
TB		 1462
1463 if test "${build}" != "${host}"; then
1464 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1465 fi
46070488
JM		 1466fi
1467
4a5e71f2
L		 1468AC_ARG_ENABLE([pgo-build],
1469[AS_HELP_STRING([--enable-pgo-build[[=lto]]],
1470 [enable the PGO build])],
1471[enable_pgo_build=$enableval],
1472[enable_pgo_build=no])
1473
1474# Issue errors and warnings for invalid/strange PGO build combinations.
1475case "$have_compiler:$host:$target:$enable_pgo_build" in
1476 *:*:*:no) ;;
1477
1478 # Allow the PGO build only if we aren't building a compiler and
1479 # we are in a native configuration.
1480 no:$build:$build:yes | no:$build:$build:lto) ;;
1481
1482 # Disallow the PGO bootstrap if we are building a compiler.
1483 yes:*:*:yes | yes:*:*:lto)
1484 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
1485
1486 *)
1487 AC_MSG_ERROR([invalid option for --enable-pgo-build])
1488 ;;
1489esac
1490
1491if test "$enable_pgo_build" != "no"; then
1492 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
1493 old_CFLAGS="$CFLAGS"
1494 PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
1495 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
1496 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1497 [PGO_BUILD_GEN_CFLAGS=])
1498 CFLAGS="$old_CFLAGS"
1499 if test -n "$PGO_BUILD_GEN_CFLAGS"; then
1500 AC_MSG_RESULT([yes])
1501 PGO_BUILD_USE_CFLAGS="-fprofile-use"
1502 else
1503 AC_MSG_RESULT([no])
1504 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
1505 fi
1506
1507 if test "$enable_pgo_build" = "lto"; then
1508 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
1509 old_CFLAGS="$CFLAGS"
1510 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
1511 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
1512 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1513 [PGO_BUILD_LTO_CFLAGS=])
1514 CFLAGS="$old_CFLAGS"
1515 if test -n "$PGO_BUILD_LTO_CFLAGS"; then
1516 AC_MSG_RESULT([yes])
1517 else
1518 AC_MSG_RESULT([no])
1519 AC_MSG_WARN([LTO is disabled for the PGO build])
1520 fi
1521 fi
1522fi
1523AC_SUBST(PGO_BUILD_GEN_CFLAGS)
1524AC_SUBST(PGO_BUILD_USE_CFLAGS)
1525AC_SUBST(PGO_BUILD_LTO_CFLAGS)
1526
592c90ff
KG		 1527# Used for setting $lt_cv_objdir
1528_LT_CHECK_OBJDIR
1529
acd26225 1530# Check for GMP, MPFR and MPC
3a5729ea 1531gmplibs="-lmpc -lmpfr -lgmp"
6de9cd9a 1532gmpinc=
e69bf64b 1533have_gmp=no
acd26225
KG		 1534
1535# Specify a location for mpc
1536# check for this first so it ends up on the link line before mpfr.
33e39b66
AS		 1537AC_ARG_WITH(mpc,
1538[AS_HELP_STRING([--with-mpc=PATH],
1539 [specify prefix directory for installed MPC package.
1540 Equivalent to --with-mpc-include=PATH/include
1541 plus --with-mpc-lib=PATH/lib])])
1542AC_ARG_WITH(mpc-include,
1543[AS_HELP_STRING([--with-mpc-include=PATH],
1544 [specify directory for installed MPC include files])])
1545AC_ARG_WITH(mpc-lib,
1546[AS_HELP_STRING([--with-mpc-lib=PATH],
1547 [specify directory for the installed MPC library])])
acd26225
KG		 1548
1549if test "x$with_mpc" != x; then
3a5729ea
KG		 1550 gmplibs="-L$with_mpc/lib $gmplibs"
1551 gmpinc="-I$with_mpc/include $gmpinc"
acd26225
KG		 1552fi
1553if test "x$with_mpc_include" != x; then
3a5729ea 1554 gmpinc="-I$with_mpc_include $gmpinc"
acd26225
KG		 1555fi
1556if test "x$with_mpc_lib" != x; then
3a5729ea 1557 gmplibs="-L$with_mpc_lib $gmplibs"
acd26225
KG		 1558fi
1559if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
592c90ff 1560 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
3a5729ea 1561 gmpinc='-I$$s/mpc/src '"$gmpinc"
acd26225
KG		 1562 # Do not test the mpc version. Assume that it is sufficient, since
1563 # it is in the source tree, and the library has not been built yet
1564 # but it would be included on the link line in the version check below
1565 # hence making the test fail.
3a5729ea 1566 have_gmp=yes
acd26225 1567fi
e69bf64b 1568
bebf829d
PB		 1569# Specify a location for mpfr
1570# check for this first so it ends up on the link line before gmp.
33e39b66
AS		 1571AC_ARG_WITH(mpfr-dir,
1572[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1573[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1574Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1575
1576AC_ARG_WITH(mpfr,
1577[AS_HELP_STRING([--with-mpfr=PATH],
1578 [specify prefix directory for installed MPFR package.
1579 Equivalent to --with-mpfr-include=PATH/include
1580 plus --with-mpfr-lib=PATH/lib])])
1581AC_ARG_WITH(mpfr-include,
1582[AS_HELP_STRING([--with-mpfr-include=PATH],
1583 [specify directory for installed MPFR include files])])
1584AC_ARG_WITH(mpfr-lib,
1585[AS_HELP_STRING([--with-mpfr-lib=PATH],
1586 [specify directory for the installed MPFR library])])
bebf829d
PB		 1587
1588if test "x$with_mpfr" != x; then
1589 gmplibs="-L$with_mpfr/lib $gmplibs"
3a5729ea 1590 gmpinc="-I$with_mpfr/include $gmpinc"
bebf829d 1591fi
8a877c9c 1592if test "x$with_mpfr_include" != x; then
3a5729ea 1593 gmpinc="-I$with_mpfr_include $gmpinc"
8a877c9c
KG		 1594fi
1595if test "x$with_mpfr_lib" != x; then
1596 gmplibs="-L$with_mpfr_lib $gmplibs"
1597fi
e69bf64b 1598if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
8f3675f8
MR		 1599 # MPFR v3.1.0 moved the sources into a src sub-directory.
1600 if ! test -d ${srcdir}/mpfr/src; then
1601 AC_MSG_ERROR([dnl
1602Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1603 fi
00f35794
BE		 1604 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1605 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1606 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
e69bf64b
PB		 1607 # Do not test the mpfr version. Assume that it is sufficient, since
1608 # it is in the source tree, and the library has not been built yet
1609 # but it would be included on the link line in the version check below
1610 # hence making the test fail.
1611 have_gmp=yes
1612fi
bebf829d 1613
6de9cd9a 1614# Specify a location for gmp
33e39b66
AS		 1615AC_ARG_WITH(gmp-dir,
1616[AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1617[AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1618Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1619
1620AC_ARG_WITH(gmp,
1621[AS_HELP_STRING([--with-gmp=PATH],
1622 [specify prefix directory for the installed GMP package.
1623 Equivalent to --with-gmp-include=PATH/include
1624 plus --with-gmp-lib=PATH/lib])])
1625AC_ARG_WITH(gmp-include,
1626[AS_HELP_STRING([--with-gmp-include=PATH],
1627 [specify directory for installed GMP include files])])
1628AC_ARG_WITH(gmp-lib,
1629[AS_HELP_STRING([--with-gmp-lib=PATH],
1630 [specify directory for the installed GMP library])])
6de9cd9a 1631
6de9cd9a 1632
bebf829d
PB		 1633if test "x$with_gmp" != x; then
1634 gmplibs="-L$with_gmp/lib $gmplibs"
1635 gmpinc="-I$with_gmp/include $gmpinc"
6de9cd9a 1636fi
8a877c9c
KG		 1637if test "x$with_gmp_include" != x; then
1638 gmpinc="-I$with_gmp_include $gmpinc"
1639fi
1640if test "x$with_gmp_lib" != x; then
1641 gmplibs="-L$with_gmp_lib $gmplibs"
1642fi
e69bf64b 1643if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
592c90ff 1644 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
e69bf64b 1645 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
9183bdcf 1646 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
592c90ff 1647 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
0ff2d841 1648 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
e69bf64b
PB		 1649 # Do not test the gmp version. Assume that it is sufficient, since
1650 # it is in the source tree, and the library has not been built yet
1651 # but it would be included on the link line in the version check below
1652 # hence making the test fail.
1653 have_gmp=yes
1654fi
6de9cd9a 1655
d943d7c4 1656if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
e69bf64b
PB		 1657 have_gmp=yes
1658 saved_CFLAGS="$CFLAGS"
1659 CFLAGS="$CFLAGS $gmpinc"
362c6d2f
KG		 1660 # Check for the recommended and required versions of GMP.
1661 AC_MSG_CHECKING([for the correct version of gmp.h])
e69bf64b 1662 AC_TRY_COMPILE([#include "gmp.h"],[
362c6d2f
KG		 1663 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1664 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
385c0681 1665 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
e48d66a9 1666 choke me
e69bf64b 1667 #endif
e8fd69bb 1668 ], [AC_TRY_COMPILE([#include <gmp.h>],[
362c6d2f
KG		 1669 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1670 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1671 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1672 choke me
1673 #endif
e8fd69bb 1674 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1675 [AC_MSG_RESULT([no]); have_gmp=no])
e69bf64b 1676
acd26225 1677 # If we have GMP, check the MPFR version.
e69bf64b 1678 if test x"$have_gmp" = xyes; then
362c6d2f
KG		 1679 # Check for the recommended and required versions of MPFR.
1680 AC_MSG_CHECKING([for the correct version of mpfr.h])
acd26225 1681 AC_TRY_COMPILE([#include <gmp.h>
e69bf64b 1682 #include <mpfr.h>],[
8be34204 1683 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
e69bf64b
PB		 1684 choke me
1685 #endif
e8fd69bb 1686 ], [AC_TRY_COMPILE([#include <gmp.h>
acd26225 1687 #include <mpfr.h>],[
8be34204 1688 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
acd26225
KG		 1689 choke me
1690 #endif
e8fd69bb 1691 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
acd26225
KG		 1692 [AC_MSG_RESULT([no]); have_gmp=no])
1693 fi
1694
1695 # Check for the MPC header version.
3a5729ea 1696 if test x"$have_gmp" = xyes ; then
362c6d2f 1697 # Check for the recommended and required versions of MPC.
acd26225
KG		 1698 AC_MSG_CHECKING([for the correct version of mpc.h])
1699 AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f 1700 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
acd26225
KG		 1701 choke me
1702 #endif
e8fd69bb 1703 ], [AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f
KG		 1704 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1705 choke me
1706 #endif
e8fd69bb 1707 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1708 [AC_MSG_RESULT([no]); have_gmp=no])
acd26225
KG		 1709 fi
1710
1711 # Now check the MPFR library.
1712 if test x"$have_gmp" = xyes; then
1713 saved_LIBS="$LIBS"
1714 LIBS="$LIBS $gmplibs"
3a5729ea
KG		 1715 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1716 AC_TRY_LINK([#include <mpc.h>],[
54e433bc
MK		 1717 mpfr_t n;
1718 mpfr_t x;
3a5729ea 1719 mpc_t c;
e69bf64b 1720 int t;
54e433bc
MK		 1721 mpfr_init (n);
1722 mpfr_init (x);
90ca6847
TB		 1723 mpfr_atan2 (n, n, x, MPFR_RNDN);
1724 mpfr_erfc (n, x, MPFR_RNDN);
1725 mpfr_subnormalize (x, t, MPFR_RNDN);
3a5729ea
KG		 1726 mpfr_clear(n);
1727 mpfr_clear(x);
1728 mpc_init2 (c, 53);
1729 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1730 mpc_cosh (c, c, MPC_RNDNN);
1731 mpc_pow (c, c, c, MPC_RNDNN);
1732 mpc_acosh (c, c, MPC_RNDNN);
1733 mpc_clear (c);
acd26225
KG		 1734 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1735 LIBS="$saved_LIBS"
e69bf64b 1736 fi
acd26225 1737
e69bf64b 1738 CFLAGS="$saved_CFLAGS"
6de9cd9a 1739
362c6d2f
KG		 1740# The library versions listed in the error message below should match
1741# the HARD-minimums enforced above.
e69bf64b 1742 if test x$have_gmp != xyes; then
8be34204 1743 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
3a5729ea
KG		 1744Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1745their locations. Source code for these libraries can be found at
1746their respective hosting sites as well as at
aeebd94c 1747https://gcc.gnu.org/pub/gcc/infrastructure/. See also
3a5729ea
KG		 1748http://gcc.gnu.org/install/prerequisites.html for additional info. If
1749you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1750make sure that you have installed both the libraries and the header
1751files. They may be located in separate packages.])
e69bf64b 1752 fi
70ec446f
KG		 1753fi
1754
acd26225 1755# Flags needed for both GMP, MPFR and/or MPC.
6de9cd9a
DN		 1756AC_SUBST(gmplibs)
1757AC_SUBST(gmpinc)
9e3eba15 1758AC_SUBST(extra_mpfr_configure_flags)
acd26225
KG		 1759AC_SUBST(extra_mpc_gmp_configure_flags)
1760AC_SUBST(extra_mpc_mpfr_configure_flags)
0ff2d841 1761AC_SUBST(extra_isl_gmp_configure_flags)
6de9cd9a 1762
00020c16
ILT		 1763# Libraries to use for stage1 or when not bootstrapping.
1764AC_ARG_WITH(stage1-libs,
33e39b66 1765[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
00020c16
ILT		 1766[if test "$withval" = "no" -o "$withval" = "yes"; then
1767 stage1_libs=
1768 else
1769 stage1_libs=$withval
1770 fi],
5dc85f7e 1771[stage1_libs=])
00020c16
ILT		 1772AC_SUBST(stage1_libs)
1773
aac9103b
TT		 1774# Whether or not to use -static-libstdc++ and -static-libgcc. The
1775# default is yes if gcc is being built; no otherwise. The reason for
1776# this default is that gdb is sometimes linked against GNU Source
1777# Highlight, which is a shared library that uses C++ exceptions. In
1778# this case, -static-libstdc++ will cause crashes.
1779AC_ARG_WITH(static-standard-libraries,
1780[AS_HELP_STRING([--with-static-standard-libraries],
1781 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1782[], [with_static_standard_libraries=auto])
1783if test "$with_static_standard_libraries" = auto; then
1784 with_static_standard_libraries=$have_compiler
1785fi
1786
0b21f5d3
EB		 1787# Linker flags to use for stage1 or when not bootstrapping.
1788AC_ARG_WITH(stage1-ldflags,
1789[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1790[if test "$withval" = "no" -o "$withval" = "yes"; then
1791 stage1_ldflags=
1792 else
1793 stage1_ldflags=$withval
1794 fi],
1795[stage1_ldflags=
1796 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1797 # if supported. But if the user explicitly specified the libraries to use,
1798 # trust that they are doing what they want.
aac9103b
TT		 1799 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1800 -a "$have_static_libs" = yes; then
0b21f5d3
EB		 1801 stage1_ldflags="-static-libstdc++ -static-libgcc"
1802 fi])
1803AC_SUBST(stage1_ldflags)
1804
5dc85f7e 1805# Libraries to use for stage2 and later builds.
00020c16 1806AC_ARG_WITH(boot-libs,
33e39b66 1807[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
00020c16
ILT		 1808[if test "$withval" = "no" -o "$withval" = "yes"; then
1809 poststage1_libs=
1810 else
e90e6bd7 1811 poststage1_libs=$withval
00020c16 1812 fi],
5dc85f7e 1813[poststage1_libs=])
00020c16
ILT		 1814AC_SUBST(poststage1_libs)
1815
ed2eaa9f
ILT		 1816# Linker flags to use for stage2 and later builds.
1817AC_ARG_WITH(boot-ldflags,
33e39b66
AS		 1818[AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1819 [linker flags for stage2 and later])],
ed2eaa9f
ILT		 1820[if test "$withval" = "no" -o "$withval" = "yes"; then
1821 poststage1_ldflags=
1822 else
1823 poststage1_ldflags=$withval
1824 fi],
1825[poststage1_ldflags=
bec93d73
ILT		 1826 # In stages 2 and 3, default to linking libstdc++ and libgcc
1827 # statically. But if the user explicitly specified the libraries to
1828 # use, trust that they are doing what they want.
1829 if test "$poststage1_libs" = ""; then
ed2eaa9f
ILT		 1830 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1831 fi])
1832AC_SUBST(poststage1_ldflags)
1833
e357a5e0 1834# GCC GRAPHITE dependency isl.
4a9bb2aa 1835# Basic setup is inlined here, actual checks are in config/isl.m4
625afa23 1836
625afa23
RG		 1837AC_ARG_WITH(isl,
1838 [AS_HELP_STRING(
1839 [--with-isl=PATH],
e357a5e0 1840 [Specify prefix directory for the installed isl package.
625afa23
RG		 1841 Equivalent to --with-isl-include=PATH/include
1842 plus --with-isl-lib=PATH/lib])])
1843
eae1a5d4 1844# Treat --without-isl as a request to disable
625afa23 1845# GRAPHITE support and skip all following checks.
eae1a5d4 1846if test "x$with_isl" != "xno"; then
e357a5e0 1847 # Check for isl
625afa23
RG		 1848 dnl Provide configure switches and initialize islinc & isllibs
1849 dnl with user input.
1850 ISL_INIT_FLAGS
e357a5e0 1851 dnl The versions of isl that work for Graphite
e0c0c325 1852 ISL_CHECK_VERSION()
e357a5e0 1853 dnl Only execute fail-action, if isl has been requested.
33ad93b9 1854 ISL_IF_FAILED([
e357a5e0 1855 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
f8bf9252 1856fi
f8bf9252 1857
e357a5e0 1858# If the isl check failed, disable builds of in-tree variant of isl
625afa23 1859if test "x$with_isl" = xno ||
625afa23 1860 test "x$gcc_cv_isl" = xno; then
4a9bb2aa 1861 noconfigdirs="$noconfigdirs isl"
625afa23 1862 islinc=
eae1a5d4
RG		 1863fi
1864
1865AC_SUBST(isllibs)
625afa23 1866AC_SUBST(islinc)
625afa23 1867
d7f09764
DN		 1868# Check for LTO support.
1869AC_ARG_ENABLE(lto,
33e39b66 1870[AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
d7f09764
DN		 1871enable_lto=$enableval,
1872enable_lto=yes; default_enable_lto=yes)
1873
48215350
DK		 1874ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1875 build_lto_plugin=yes
1876],[if test x"$default_enable_lto" = x"yes" ; then
bb79486c 1877 case $target in
deeba76a 1878 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
48215350 1879 # On other non-ELF platforms, LTO has yet to be validated.
bb79486c
JH		 1880 *) enable_lto=no ;;
1881 esac
3bec79c5 1882 else
db50fe7d
IS		 1883 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1884 # It would also be nice to check the binutils support, but we don't
3bec79c5
DK		 1885 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1886 # warn during gcc/ subconfigure; unless you're bootstrapping with
1887 # -flto it won't be needed until after installation anyway.
1888 case $target in
9e530bcd 1889 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
3bec79c5
DK		 1890 *) if test x"$enable_lto" = x"yes"; then
1891 AC_MSG_ERROR([LTO support is not enabled for this target.])
1892 fi
1893 ;;
1894 esac
1895 fi
1cd0b716 1896 # Among non-ELF, only Windows platforms support the lto-plugin so far.
48215350 1897 # Build it unless LTO was explicitly disabled.
1cd0b716 1898 case $target in
48215350 1899 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1cd0b716
DK		 1900 *) ;;
1901 esac
48215350 1902])
d7f09764 1903
45b3824d
TS		 1904AC_ARG_ENABLE(linker-plugin-configure-flags,
1905 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1906 [additional flags for configuring linker plugins @<:@none@:>@])],
1907 extra_linker_plugin_configure_flags=$enableval,
1908 extra_linker_plugin_configure_flags=)
1909AC_SUBST(extra_linker_plugin_configure_flags)
1910AC_ARG_ENABLE(linker-plugin-flags,
1911 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1912 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1913 extra_linker_plugin_flags=$enableval,
1914 extra_linker_plugin_flags=)
1915AC_SUBST(extra_linker_plugin_flags)
1916
cdfee50a
NS		 1917# Enable --enable-host-shared.
1918# Checked early to determine whether jit is an 'all' language
1919AC_ARG_ENABLE(host-shared,
1920[AS_HELP_STRING([--enable-host-shared],
1921 [build host code as shared libraries])],
a1d2b162
IS		 1922[host_shared=$enableval
1923 case $target in
1924 x86_64-*-darwin* | aarch64-*-darwin*)
1925 if test x$host_shared != xyes ; then
1926 # PIC is the default, and actually cannot be switched off.
1927 echo configure.ac: warning: PIC code is required for the configured target, host-shared setting ignored. 1>&2
1928 host_shared=yes
1929 fi ;;
1930 *) ;;
1931 esac],
1932[case $target in
1933 x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
1934 *) host_shared=no ;;
1935 esac])
cdfee50a 1936AC_SUBST(host_shared)
f8bf9252 1937
0823efed 1938# By default, C and C++ are the only stage 1 languages.
e1888513 1939stage1_languages=,c,
2805b53a 1940
00020c16 1941# Target libraries that we bootstrap.
ad1e5170 1942bootstrap_target_libs=,target-libgcc,
00020c16 1943
e4c9c075
PB		 1944# Figure out what language subdirectories are present.
1945# Look if the user specified --enable-languages="..."; if not, use
1946# the environment variable $LANGUAGES if defined. $LANGUAGES might
1947# go away some day.
1948# NB: embedded tabs in this IF block -- do not untabify
1949if test -d ${srcdir}/gcc; then
1950 if test x"${enable_languages+set}" != xset; then
1951 if test x"${LANGUAGES+set}" = xset; then
1952 enable_languages="${LANGUAGES}"
6b1786aa 1953 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
e4c9c075 1954 else
cdfee50a 1955 enable_languages=default
e4c9c075
PB		 1956 fi
1957 else
1958 if test x"${enable_languages}" = x ||
1959 test x"${enable_languages}" = xyes;
1960 then
6b1786aa 1961 echo configure.ac: --enable-languages needs at least one language argument 1>&2
e4c9c075
PB		 1962 exit 1
1963 fi
1964 fi
1965 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1966
7f26dfa3
FXC		 1967 # 'f95' is the old name for the 'fortran' language. We issue a warning
1968 # and make the substitution.
1969 case ,${enable_languages}, in
1970 *,f95,*)
6b1786aa 1971 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
7f26dfa3
FXC		 1972 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1973 ;;
1974 esac
1975
0823efed
DN		 1976 # If bootstrapping, C++ must be enabled.
1977 case ",$enable_languages,:$enable_bootstrap" in
1978 *,c++,*:*) ;;
1979 *:yes)
ff3ac0f4
ILT		 1980 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1981 enable_languages="${enable_languages},c++"
1982 else
0823efed 1983 AC_MSG_ERROR([bootstrapping requires c++ sources])
ff3ac0f4
ILT		 1984 fi
1985 ;;
1986 esac
1987
e4c9c075
PB		 1988 # First scan to see if an enabled language requires some other language.
1989 # We assume that a given config-lang.in will list all the language
1990 # front ends it requires, even if some are required indirectly.
1991 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1992 case ${lang_frag} in
1993 ..) ;;
1994 # The odd quoting in the next line works around
1995 # an apparent bug in bash 1.12 on linux.
1996 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1997 *)
69ecd18f
ILT		 1998 # From the config-lang.in, get $language, $lang_requires, and
1999 # $lang_requires_boot_languages.
e4c9c075
PB		 2000 language=
2001 lang_requires=
69ecd18f 2002 lang_requires_boot_languages=
d4360477
NS		 2003 # set srcdir during sourcing lang_frag to the gcc dir.
2004 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
2005 # polutes this shell
2006 saved_srcdir=${srcdir}
2007 srcdir=${srcdir}/gcc . ${lang_frag}
2008 srcdir=${saved_srcdir}
69ecd18f 2009 for other in ${lang_requires} ${lang_requires_boot_languages}; do
e4c9c075
PB		 2010 case ,${enable_languages}, in
2011 *,$other,*) ;;
cdfee50a 2012 *,default,*) ;;
e4c9c075
PB		 2013 *,all,*) ;;
2014 *,$language,*)
2015 echo " \`$other' language required by \`$language'; enabling" 1>&2
2016 enable_languages="${enable_languages},${other}"
2017 ;;
2018 esac
2019 done
69ecd18f
ILT		 2020 for other in ${lang_requires_boot_languages} ; do
2021 if test "$other" != "c"; then
2022 case ,${enable_stage1_languages}, in
2023 *,$other,*) ;;
cdfee50a 2024 *,default,*) ;;
69ecd18f
ILT		 2025 *,all,*) ;;
2026 *)
2027 case ,${enable_languages}, in
2028 *,$language,*)
2029 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
2030 enable_stage1_languages="$enable_stage1_languages,${other}"
2031 ;;
2032 esac
2033 ;;
2034 esac
2035 fi
2036 done
e4c9c075
PB		 2037 ;;
2038 esac
2039 done
2040
e1888513 2041 new_enable_languages=,c,
d7f09764
DN		 2042
2043 # If LTO is enabled, add the LTO front end.
d7f09764 2044 if test "$enable_lto" = "yes" ; then
e4c5bd48
RW		 2045 case ,${enable_languages}, in
2046 *,lto,*) ;;
2047 *) enable_languages="${enable_languages},lto" ;;
2048 esac
1cd0b716 2049 if test "${build_lto_plugin}" = "yes" ; then
d7f09764 2050 configdirs="$configdirs lto-plugin"
d7f09764
DN		 2051 fi
2052 fi
d7f09764 2053
426c1eb0
TS		 2054 # If we're building an offloading compiler, add the LTO front end.
2055 if test x"$enable_as_accelerator_for" != x ; then
2056 case ,${enable_languages}, in
2057 *,lto,*) ;;
2058 *) enable_languages="${enable_languages},lto" ;;
2059 esac
2060 fi
2061
cdfee50a 2062 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
e1888513 2063 potential_languages=,c,
e4c9c075 2064
4da3b0f8
ILT		 2065 enabled_target_libs=
2066 disabled_target_libs=
2067
e4c9c075
PB		 2068 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2069 case ${lang_frag} in
2070 ..) ;;
2071 # The odd quoting in the next line works around
2072 # an apparent bug in bash 1.12 on linux.
2073 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2074 *)
2075 # From the config-lang.in, get $language, $target_libs,
2805b53a 2076 # $lang_dirs, $boot_language, and $build_by_default
e4c9c075
PB		 2077 language=
2078 target_libs=
2079 lang_dirs=
1546bb64 2080 subdir_requires=
e1888513
PB		 2081 boot_language=no
2082 build_by_default=yes
d4360477
NS		 2083 # set srcdir during sourcing. See above about save & restore
2084 saved_srcdir=${srcdir}
2085 srcdir=${srcdir}/gcc . ${lang_frag}
2086 srcdir=${saved_srcdir}
e1888513
PB		 2087 if test x${language} = x; then
2088 echo "${lang_frag} doesn't set \$language." 1>&2
2089 exit 1
2090 fi
2091
78767fd9 2092 if test "$language" = "c++"; then
0823efed 2093 boot_language=yes
00020c16
ILT		 2094 fi
2095
178f875a 2096 add_this_lang=no
cdfee50a
NS		 2097 # C is always enabled, so no need to add it again
2098 if test "$language" != "c"; then
2099 case ,${enable_languages}, in
2100 *,${language},*)
2101 # Language was explicitly selected; include it
d4a10d0a 2102 add_this_lang=yes
cdfee50a
NS		 2103 ;;
2104 *,all,*)
2105 # All languages are enabled
2106 add_this_lang=all
2107 ;;
2108 *,default,*)
2109 # 'default' was selected, select it if it is a default language
178f875a 2110 add_this_lang=${build_by_default}
cdfee50a
NS		 2111 ;;
2112 esac
2113 fi
6de9cd9a 2114
1546bb64 2115 # Disable languages that need other directories if these aren't available.
95695ad3 2116 for i in $subdir_requires; do
b6348cb3 2117 test -f "$srcdir/gcc/$i/config-lang.in" && continue
cdfee50a
NS		 2118 case ${add_this_lang} in
2119 yes)
1546bb64
PB		 2120 # Specifically requested language; tell them.
2121 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2122 ;;
cdfee50a
NS		 2123 all)
2124 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2125 add_this_lang=unsupported
2126 ;;
1546bb64
PB		 2127 *)
2128 # Silently disable.
e1888513 2129 add_this_lang=unsupported
1546bb64
PB		 2130 ;;
2131 esac
2132 done
2133
e1888513 2134 # Disable Ada if no preexisting GNAT is available.
cdfee50a
NS		 2135 case ${add_this_lang}:${language}:${have_gnat} in
2136 yes:ada:no)
e1888513
PB		 2137 # Specifically requested language; tell them.
2138 AC_MSG_ERROR([GNAT is required to build $language])
2139 ;;
cdfee50a
NS		 2140 all:ada:no)
2141 AC_MSG_WARN([GNAT is required to build $language])
2142 add_this_lang=unsupported
2143 ;;
e1888513
PB		 2144 *:ada:no)
2145 # Silently disable.
2146 add_this_lang=unsupported
2147 ;;
2148 esac
2149
5fee5ec3
IB		 2150 # Disable D if no preexisting GDC is available.
2151 case ${add_this_lang}:${language}:${have_gdc} in
2152 yes:d:no)
2153 # Specifically requested language; tell them.
2154 AC_MSG_ERROR([GDC is required to build $language])
2155 ;;
2156 all:d:no)
2157 AC_MSG_WARN([GDC is required to build $language])
2158 add_this_lang=unsupported
2159 ;;
2160 *:d:no)
2161 # Silently disable.
2162 add_this_lang=unsupported
2163 ;;
2164 esac
2165
cdfee50a 2166 # Disable jit if -enable-host-shared not specified
c83027f3
NB		 2167 # but not if building for Mingw. All code in Windows
2168 # is position independent code (PIC).
2169 case $target in
2170 *mingw*) ;;
2171 *)
2172 case ${add_this_lang}:${language}:${host_shared} in
2173 yes:jit:no)
2174 # PR jit/64780: explicitly specify --enable-host-shared
cdfee50a
NS		 2175 AC_MSG_ERROR([
2176Enabling language "jit" requires --enable-host-shared.
2177
2178--enable-host-shared typically slows the rest of the compiler down by
2179a few %, so you must explicitly enable it.
2180
2181If you want to build both the jit and the regular compiler, it is often
2182best to do this via two separate configure/builds, in separate
2183directories, to avoid imposing the performance cost of
2184--enable-host-shared on the regular compiler.])
c83027f3
NB		 2185 ;;
2186 all:jit:no)
2187 AC_MSG_WARN([--enable-host-shared required to build $language])
2188 add_this_lang=unsupported
2189 ;;
2190 *:jit:no)
2191 # Silently disable.
2192 add_this_lang=unsupported
2193 ;;
2194 esac
2195 ;;
2196 esac
cdfee50a
NS		 2197
2198 # Disable a language that is unsupported by the target.
2199 case "${add_this_lang}: $unsupported_languages " in
2200 no:*) ;;
2201 unsupported:*) ;;
2202 *:*" $language "*)
2203 AC_MSG_WARN([${language} not supported for this target])
e1888513 2204 add_this_lang=unsupported
4fab7234
HPN		 2205 ;;
2206 esac
2207
6de9cd9a 2208 case $add_this_lang in
e1888513 2209 unsupported)
e4c9c075 2210 # Remove language-dependent dirs.
4da3b0f8
ILT		 2211 disabled_target_libs="$disabled_target_libs $target_libs"
2212 noconfigdirs="$noconfigdirs $lang_dirs"
2805b53a 2213 ;;
e1888513
PB		 2214 no)
2215 # Remove language-dependent dirs; still show language as supported.
4da3b0f8
ILT		 2216 disabled_target_libs="$disabled_target_libs $target_libs"
2217 noconfigdirs="$noconfigdirs $lang_dirs"
e1888513
PB		 2218 potential_languages="${potential_languages}${language},"
2219 ;;
cdfee50a 2220 all|yes)
e1888513
PB		 2221 new_enable_languages="${new_enable_languages}${language},"
2222 potential_languages="${potential_languages}${language},"
2805b53a 2223 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
4da3b0f8 2224 enabled_target_libs="$enabled_target_libs $target_libs"
ab9dcd0c
RW		 2225 case "${boot_language}:,$enable_stage1_languages," in
2226 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
340de83f 2227 # Add to (comma-separated) list of stage 1 languages.
ab9dcd0c
RW		 2228 case ",$stage1_languages," in
2229 *,$language,* | ,yes, | ,all,) ;;
2230 *) stage1_languages="${stage1_languages}${language}," ;;
2231 esac
00020c16 2232 # We need to bootstrap any supporting libraries.
5fee5ec3 2233 bootstrap_target_libs=`echo "${bootstrap_target_libs}${target_libs}," | sed "s/ /,/g"`
2805b53a
NN		 2234 ;;
2235 esac
2236 ;;
e4c9c075
PB		 2237 esac
2238 ;;
2239 esac
2240 done
2241
4da3b0f8
ILT		 2242 # Add target libraries which are only needed for disabled languages
2243 # to noconfigdirs.
2244 if test -n "$disabled_target_libs"; then
2245 for dir in $disabled_target_libs; do
2246 case " $enabled_target_libs " in
2247 *" ${dir} "*) ;;
2248 *) noconfigdirs="$noconfigdirs $dir" ;;
2249 esac
2250 done
2251 fi
2252
e1888513 2253 AC_ARG_ENABLE(stage1-languages,
33e39b66
AS		 2254 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2255 [choose additional languages to build during
2256 stage1. Mostly useful for compiler development])],
e1888513
PB		 2257 [case ,${enable_stage1_languages}, in
2258 ,no,|,,)
2259 # Set it to something that will have no effect in the loop below
2260 enable_stage1_languages=c ;;
2261 ,yes,)
2262 enable_stage1_languages=`echo $new_enable_languages | \
2263 sed -e "s/^,//" -e "s/,$//" ` ;;
2264 *,all,*)
2265 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2266 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2267 esac
2268
2269 # Add "good" languages from enable_stage1_languages to stage1_languages,
2270 # while "bad" languages go in missing_languages. Leave no duplicates.
2271 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2272 case $potential_languages in
2273 *,$i,*)
2274 case $stage1_languages in
2275 *,$i,*) ;;
2276 *) stage1_languages="$stage1_languages$i," ;;
2277 esac ;;
2278 *)
2279 case $missing_languages in
2280 *,$i,*) ;;
2281 *) missing_languages="$missing_languages$i," ;;
2282 esac ;;
2283 esac
2284 done])
2285
2286 # Remove leading/trailing commas that were added for simplicity
2287 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
79b4b7d2 2288 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
e1888513
PB		 2289 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2290 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2291
e4c9c075
PB		 2292 if test "x$missing_languages" != x; then
2293 AC_MSG_ERROR([
0cf085e4 2294The following requested languages could not be built: ${missing_languages}
e1888513 2295Supported languages are: ${potential_languages}])
e4c9c075 2296 fi
e4c9c075
PB		 2297 if test "x$new_enable_languages" != "x$enable_languages"; then
2298 echo The following languages will be built: ${new_enable_languages}
e1888513 2299 enable_languages="$new_enable_languages"
e4c9c075 2300 fi
e1888513
PB		 2301
2302 AC_SUBST(stage1_languages)
b2eaac4a 2303 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
e4c9c075
PB		 2304fi
2305
27079765
AH		 2306# Handle --disable-<component> generically.
2307for dir in $configdirs $build_configdirs $target_configdirs ; do
2308 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
ac9e6043
RW		 2309 varname=`echo $dirname | sed -e s/+/_/g`
2310 if eval test x\${enable_${varname}} "=" xno ; then
27079765
AH		 2311 noconfigdirs="$noconfigdirs $dir"
2312 fi
2313done
2314
43c40f3e
RO		 2315# Check for Boehm's garbage collector
2316AC_ARG_ENABLE(objc-gc,
2317[AS_HELP_STRING([--enable-objc-gc],
2318 [enable use of Boehm's garbage collector with the
114bf3f1
MK		 2319 GNU Objective-C runtime])])
2320AC_ARG_WITH([target-bdw-gc],
2321[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2322 [specify prefix directory for installed bdw-gc package.
2323 Equivalent to --with-target-bdw-gc-include=PATH/include
2324 plus --with-target-bdw-gc-lib=PATH/lib])])
2325AC_ARG_WITH([target-bdw-gc-include],
2326[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2327 [specify directories for installed bdw-gc include files])])
2328AC_ARG_WITH([target-bdw-gc-lib],
2329[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2330 [specify directories for installed bdw-gc library])])
2331
2332case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2333 AC_MSG_CHECKING([for bdw garbage collector])
2334 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
825fba52
MK		 2335 dnl no bdw-gw options, assume default locations
2336 AC_MSG_RESULT([using bdw-gc in default locations])
114bf3f1
MK		 2337 else
2338 dnl bdw-gw options, first error checking, complete checking in libobjc
2339 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2340 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2341 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2342 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2343 else
2344 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2345 fi
2346 fi
43c40f3e
RO		 2347esac
2348
5e9d6aa4 2349# Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
99776ebd 2350case ,${enable_languages}, in
1007a55c 2351 *,c++,*)
5e9d6aa4 2352 # Disable libitm, libsanitizer if we're not building libstdc++
1007a55c
JW		 2353 case "${noconfigdirs}" in
2354 *target-libstdc++-v3*)
5e9d6aa4 2355 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
1007a55c
JW		 2356 ;;
2357 *) ;;
2358 esac
2359 ;;
99776ebd 2360 *)
5e9d6aa4 2361 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
99776ebd
RH		 2362 ;;
2363esac
7cd0cf9c 2364
dc614a83
AB		 2365# If gcc/ is not in the source tree then we'll not be building a
2366# target compiler, assume in that case we don't want to build any
2367# target libraries or tools.
2368#
2369# This was added primarily for the benefit for binutils-gdb who reuse
2370# this configure script, but don't always have target tools available.
2371if test ! -d ${srcdir}/gcc; then
2372 skipdirs="${skipdirs} ${target_configdirs}"
2373fi
2374
9d069a4f
PB		 2375# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2376# $build_configdirs and $target_configdirs.
e4c9c075
PB		 2377# If we have the source for $noconfigdirs entries, add them to $notsupp.
2378
2379notsupp=""
2380for dir in . $skipdirs $noconfigdirs ; do
9d069a4f 2381 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
e4c9c075
PB		 2382 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2383 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2384 if test -r $srcdir/$dirname/configure ; then
2385 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2386 true
2387 else
2388 notsupp="$notsupp $dir"
2389 fi
2390 fi
2391 fi
9d069a4f
PB		 2392 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2393 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2394 if test -r $srcdir/$dirname/configure ; then
2395 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2396 true
2397 else
2398 notsupp="$notsupp $dir"
2399 fi
2400 fi
2401 fi
e4c9c075
PB		 2402 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2403 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2404 if test -r $srcdir/$dirname/configure ; then
2405 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2406 true
2407 else
2408 notsupp="$notsupp $dir"
2409 fi
2410 fi
2411 fi
2412done
2413
e4c9c075
PB		 2414# Quietly strip out all directories which aren't configurable in this tree.
2415# This relies on all configurable subdirectories being autoconfiscated, which
2416# is now the case.
23f6b2f9
PB		 2417build_configdirs_all="$build_configdirs"
2418build_configdirs=
2419for i in ${build_configdirs_all} ; do
2420 j=`echo $i | sed -e s/build-//g`
2421 if test -f ${srcdir}/$j/configure ; then
2422 build_configdirs="${build_configdirs} $i"
2423 fi
2424done
2425
e4c9c075
PB		 2426configdirs_all="$configdirs"
2427configdirs=
2428for i in ${configdirs_all} ; do
2429 if test -f ${srcdir}/$i/configure ; then
2430 configdirs="${configdirs} $i"
2431 fi
2432done
23f6b2f9 2433
e4c9c075
PB		 2434target_configdirs_all="$target_configdirs"
2435target_configdirs=
2436for i in ${target_configdirs_all} ; do
2437 j=`echo $i | sed -e s/target-//g`
2438 if test -f ${srcdir}/$j/configure ; then
2439 target_configdirs="${target_configdirs} $i"
2440 fi
2441done
2442
45b3824d
TS		 2443# libiberty-linker-plugin is special: it doesn't have its own source directory,
2444# so we have to add it after the preceding checks.
2445if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2446then
2447 case " $configdirs " in
2448 *" libiberty "*)
2449 # If we can build libiberty, we can also build libiberty-linker-plugin.
2450 configdirs="$configdirs libiberty-linker-plugin"
2451 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2452 --with-libiberty=../libiberty-linker-plugin";;
2453 *)
2454 AC_MSG_ERROR([libiberty missing]);;
2455 esac
2456fi
2457
fca38047
TS		 2458# Sometimes we have special requirements for the host libiberty.
2459extra_host_libiberty_configure_flags=
1c01ebf6 2460extra_host_zlib_configure_flags=
fca38047
TS		 2461case " $configdirs " in
2462 *" lto-plugin "* | *" libcc1 "*)
2463 # When these are to be built as shared libraries, the same applies to
2464 # libiberty.
2465 extra_host_libiberty_configure_flags=--enable-shared
2466 ;;
1c01ebf6
L		 2467 *" bfd "*)
2468 # When bfd is to be built as a shared library, the same applies to
2469 # zlib.
2470 if test "$enable_shared" = "yes"; then
2471 extra_host_zlib_configure_flags=--enable-host-shared
2472 fi
2473 ;;
fca38047
TS		 2474esac
2475AC_SUBST(extra_host_libiberty_configure_flags)
1c01ebf6 2476AC_SUBST(extra_host_zlib_configure_flags)
fca38047 2477
e4c9c075
PB		 2478# Produce a warning message for the subdirs we can't configure.
2479# This isn't especially interesting in the Cygnus tree, but in the individual
2480# FSF releases, it's important to let people know when their machine isn't
2481# supported by the one or two programs in a package.
2482
2483if test -n "${notsupp}" && test -z "${norecursion}" ; then
2484 # If $appdirs is non-empty, at least one of those directories must still
2485 # be configured, or we error out. (E.g., if the gas release supports a
2486 # specified target in some subdirs but not the gas subdir, we shouldn't
2487 # pretend that all is well.)
2488 if test -n "$appdirs" ; then
2489 for dir in $appdirs ; do
2490 if test -r $dir/Makefile.in ; then
2491 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2492 appdirs=""
2493 break
2494 fi
23f6b2f9 2495 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
e4c9c075
PB		 2496 appdirs=""
2497 break
2498 fi
2499 fi
2500 done
2501 if test -n "$appdirs" ; then
2502 echo "*** This configuration is not supported by this package." 1>&2
2503 exit 1
2504 fi
2505 fi
2506 # Okay, some application will build, or we don't care to check. Still
2507 # notify of subdirs not getting built.
2508 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2509 echo " ${notsupp}" 1>&2
2510 echo " (Any other directories should still work fine.)" 1>&2
2511fi
2512
2513case "$host" in
2514 *msdosdjgpp*)
2515 enable_gdbtk=no ;;
2516esac
2517
c3a86da9
DJ		 2518# To find our prefix, in gcc_cv_tool_prefix.
2519ACX_TOOL_DIRS
2520
e4c9c075
PB		 2521copy_dirs=
2522
526635cb 2523AC_ARG_WITH([build-sysroot],
33e39b66
AS		 2524 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2525 [use sysroot as the system root during the build])],
526635cb
MM		 2526 [if test x"$withval" != x ; then
2527 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2528 fi],
2529 [SYSROOT_CFLAGS_FOR_TARGET=])
2530AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2531
c8aea42c 2532AC_ARG_WITH([debug-prefix-map],
33e39b66
AS		 2533 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2534 [map A to B, C to D ... in debug information])],
c8aea42c
PB		 2535 [if test x"$withval" != x; then
2536 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2537 for debug_map in $withval; do
2538 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2539 done
2540 fi],
2541 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2542AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2543
1c8bd6a3
PB		 2544# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2545# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2546# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2547# We want to ensure that TARGET libraries (which we know are built with
2548# gcc) are built with "-O2 -g", so include those options when setting
2549# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2550if test "x$CFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2551 if test "x${is_cross_compiler}" = xyes; then
2552 CFLAGS_FOR_TARGET="-g -O2"
2553 else
2554 CFLAGS_FOR_TARGET=$CFLAGS
2555 case " $CFLAGS " in
2556 *" -O2 "*) ;;
2557 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2558 esac
2559 case " $CFLAGS " in
2560 *" -g "* | *" -g3 "*) ;;
2561 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2562 esac
2563 fi
1c8bd6a3
PB		 2564fi
2565AC_SUBST(CFLAGS_FOR_TARGET)
2566
2567if test "x$CXXFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2568 if test "x${is_cross_compiler}" = xyes; then
2569 CXXFLAGS_FOR_TARGET="-g -O2"
2570 else
2571 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2572 case " $CXXFLAGS " in
2573 *" -O2 "*) ;;
2574 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2575 esac
2576 case " $CXXFLAGS " in
2577 *" -g "* | *" -g3 "*) ;;
2578 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2579 esac
2580 fi
1c8bd6a3
PB		 2581fi
2582AC_SUBST(CXXFLAGS_FOR_TARGET)
2583
6f57bdf6
DK		 2584AC_SUBST(LDFLAGS_FOR_TARGET)
2585
e4c9c075
PB		 2586# Handle --with-headers=XXX. If the value is not "yes", the contents of
2587# the named directory are copied to $(tooldir)/sys-include.
2588if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2589 if test x${is_cross_compiler} = xno ; then
2590 echo 1>&2 '***' --with-headers is only supported when cross compiling
2591 exit 1
2592 fi
2593 if test x"${with_headers}" != xyes ; then
c3a86da9 2594 x=${gcc_cv_tool_prefix}
1c710c3c 2595 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
e4c9c075
PB		 2596 fi
2597fi
2598
2599# Handle --with-libs=XXX. If the value is not "yes", the contents of
2600# the name directories are copied to $(tooldir)/lib. Multiple directories
2601# are permitted.
2602if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2603 if test x${is_cross_compiler} = xno ; then
2604 echo 1>&2 '***' --with-libs is only supported when cross compiling
2605 exit 1
2606 fi
2607 if test x"${with_libs}" != xyes ; then
2608 # Copy the libraries in reverse order, so that files in the first named
2609 # library override files in subsequent libraries.
c3a86da9 2610 x=${gcc_cv_tool_prefix}
e4c9c075 2611 for l in ${with_libs}; do
1c710c3c 2612 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
e4c9c075
PB		 2613 done
2614 fi
2615fi
2616
d7f09764 2617# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
e8b05380
PB		 2618#
2619# This is done by determining whether or not the appropriate directory
2620# is available, and by checking whether or not specific configurations
2621# have requested that this magic not happen.
2622#
2623# The command line options always override the explicit settings in
6b1786aa 2624# configure.ac, and the settings in configure.ac override this magic.
e8b05380
PB		 2625#
2626# If the default for a toolchain is to use GNU as and ld, and you don't
2627# want to do that, then you should use the --without-gnu-as and
d7f09764
DN		 2628# --without-gnu-ld options for the configure script. Similarly, if
2629# the default is to use the included zlib and you don't want to do that,
2630# you should use the --with-system-zlib option for the configure script.
e8b05380
PB		 2631
2632if test x${use_gnu_as} = x &&
2633 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2634 with_gnu_as=yes
2635 extra_host_args="$extra_host_args --with-gnu-as"
2636fi
2637
2638if test x${use_gnu_ld} = x &&
5afab7ad 2639 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
e8b05380
PB		 2640 with_gnu_ld=yes
2641 extra_host_args="$extra_host_args --with-gnu-ld"
2642fi
2643
d7f09764
DN		 2644if test x${use_included_zlib} = x &&
2645 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2646 :
2647else
2648 with_system_zlib=yes
2649 extra_host_args="$extra_host_args --with-system-zlib"
2650fi
2651
e8b05380
PB		 2652# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2653# can detect this case.
2654
2655if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2656 with_newlib=yes
2657 extra_host_args="$extra_host_args --with-newlib"
2658fi
2659
e4c9c075
PB		 2660# Handle ${copy_dirs}
2661set fnord ${copy_dirs}
2662shift
2663while test $# != 0 ; do
2664 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2665 :
2666 else
2667 echo Copying $1 to $2
2668
2669 # Use the install script to create the directory and all required
2670 # parent directories.
2671 if test -d $2 ; then
2672 :
2673 else
2674 echo >config.temp
2675 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2676 fi
2677
2678 # Copy the directory, assuming we have tar.
2679 # FIXME: Should we use B in the second tar? Not all systems support it.
2680 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2681
2682 # It is the responsibility of the user to correctly adjust all
2683 # symlinks. If somebody can figure out how to handle them correctly
2684 # here, feel free to add the code.
2685
2686 echo $1 > $2/COPIED
2687 fi
2688 shift; shift
2689done
2690
e8b05380
PB		 2691# Determine a target-dependent exec_prefix that the installed
2692# gcc will search in. Keep this list sorted by triplet, with
2693# the *-*-osname triplets last.
2694md_exec_prefix=
2695case "${target}" in
30b74385 2696 i[[34567]]86-pc-msdosdjgpp*)
e8b05380
PB		 2697 md_exec_prefix=/dev/env/DJDIR/bin
2698 ;;
e8b05380 2699 *-*-hpux* | \
e8b05380 2700 *-*-nto-qnx* | \
6de66370 2701 *-*-solaris2*)
e8b05380
PB		 2702 md_exec_prefix=/usr/ccs/bin
2703 ;;
2704esac
2705
4977bab6
ZW		 2706extra_arflags_for_target=
2707extra_nmflags_for_target=
2a726918 2708extra_ranlibflags_for_target=
671aa708 2709target_makefile_frag=/dev/null
55380b08 2710case "${target}" in
58e24147
AM		 2711 spu-*-*)
2712 target_makefile_frag="config/mt-spu"
2713 ;;
74ae587e 2714 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
4bf6c438
RS		 2715 target_makefile_frag="config/mt-sde"
2716 ;;
1ec3b87b
RS		 2717 mipsisa*-*-elfoabi*)
2718 target_makefile_frag="config/mt-mips-elfoabi"
2719 ;;
08d0963a
RS		 2720 mips*-*-*linux* | mips*-*-gnu*)
2721 target_makefile_frag="config/mt-mips-gnu"
2722 ;;
707f1839
SL		 2723 nios2-*-elf*)
2724 target_makefile_frag="config/mt-nios2-elf"
2725 ;;
76052545
EB		 2726 *-*-linux-android*)
2727 target_makefile_frag="config/mt-android"
2728 ;;
416ac4d4 2729 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
98a5bb3b 2730 target_makefile_frag="config/mt-gnu"
55380b08 2731 ;;
671aa708 2732 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
4977bab6
ZW		 2733 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2734 # commands to handle both 32-bit and 64-bit objects. These flags are
2735 # harmless if we're using GNU nm or ar.
2736 extra_arflags_for_target=" -X32_64"
2737 extra_nmflags_for_target=" -B -X32_64"
55380b08 2738 ;;
c3b7d169
NN		 2739esac
2740
671aa708 2741alphaieee_frag=/dev/null
c3b7d169
NN		 2742case $target in
2743 alpha*-*-*)
2744 # This just makes sure to use the -mieee option to build target libs.
2745 # This should probably be set individually by each library.
2746 alphaieee_frag="config/mt-alphaieee"
55380b08
NN		 2747 ;;
2748esac
701afd4d 2749
55380b08
NN		 2750# If --enable-target-optspace always use -Os instead of -O2 to build
2751# the target libraries, similarly if it is not specified, use -Os
2752# on selected platforms.
671aa708 2753ospace_frag=/dev/null
55380b08
NN		 2754case "${enable_target_optspace}:${target}" in
2755 yes:*)
c3b7d169 2756 ospace_frag="config/mt-ospace"
55380b08
NN		 2757 ;;
2758 :d30v-*)
c3b7d169 2759 ospace_frag="config/mt-d30v"
55380b08 2760 ;;
d9063947 2761 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
c3b7d169 2762 ospace_frag="config/mt-ospace"
55380b08
NN		 2763 ;;
2764 no:* | :*)
2765 ;;
2766 *)
2767 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2768 ;;
2769esac
6599da04 2770
671aa708
NN		 2771# Some systems (e.g., one of the i386-aix systems the gas testers are
2772# using) don't handle "\$" correctly, so don't use it here.
1c710c3c 2773tooldir='${exec_prefix}'/${target_noncanonical}
671aa708
NN		 2774build_tooldir=${tooldir}
2775
671aa708
NN		 2776# Create a .gdbinit file which runs the one in srcdir
2777# and tells GDB to look there for source files.
2778
2779if test -r ${srcdir}/.gdbinit ; then
2780 case ${srcdir} in
2781 .) ;;
2782 *) cat > ./.gdbinit <<EOF
2783# ${NO_EDIT}
2784dir ${srcdir}
2785dir .
2786source ${srcdir}/.gdbinit
2787EOF
2788 ;;
2789 esac
2790fi
2791
6599da04
JM		 2792# Make sure that the compiler is able to generate an executable. If it
2793# can't, we are probably in trouble. We don't care whether we can run the
2794# executable--we might be using a cross compiler--we only care whether it
2795# can be created. At this point the main configure script has set CC.
aeaa0f2f 2796we_are_ok=no
6599da04
JM		 2797echo "int main () { return 0; }" > conftest.c
2798${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
aeaa0f2f
NN		 2799if test $? = 0 ; then
2800 if test -s conftest || test -s conftest.exe ; then
2801 we_are_ok=yes
2802 fi
2803fi
2804case $we_are_ok in
2805 no)
2806 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2807 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2808 rm -f conftest*
2809 exit 1
2810 ;;
2811esac
6599da04
JM		 2812rm -f conftest*
2813
d89f0ad6 2814# Decide which environment variable is used to find dynamic libraries.
fe3d5b7f
NN		 2815case "${host}" in
2816 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
111eeb6e 2817 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
d89f0ad6 2818 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
fe3d5b7f
NN		 2819 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2820esac
fe3d5b7f 2821
d89f0ad6
AL		 2822# On systems where the dynamic library environment variable is PATH,
2823# gcc/ will put dynamic libraries into a subdirectory to avoid adding
2824# built executables to PATH.
2825if test "$RPATH_ENVVAR" = PATH; then
2826 GCC_SHLIB_SUBDIR=/shlib
2827else
2828 GCC_SHLIB_SUBDIR=
2829fi
2830
beeda1d9
JJ		 2831# Adjust the toplevel makefile according to whether bootstrap was selected.
2832case $enable_bootstrap in
2833 yes)
2834 bootstrap_suffix=bootstrap
2835 BUILD_CONFIG=bootstrap-debug
2836 ;;
2837 no)
2838 bootstrap_suffix=no-bootstrap
2839 BUILD_CONFIG=
2840 ;;
2841esac
2842
2843AC_MSG_CHECKING(for default BUILD_CONFIG)
2844
2845AC_ARG_WITH([build-config],
2846 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2847 [use config/NAME.mk build configuration])],
2848 [case $with_build_config in
2849 yes) with_build_config= ;;
2850 no) with_build_config= BUILD_CONFIG= ;;
2851 esac])
2852
2853if test "x${with_build_config}" != x; then
2854 BUILD_CONFIG=$with_build_config
2855else
2856 case $BUILD_CONFIG in
2857 bootstrap-debug)
2858 if echo "int f (void) { return 0; }" > conftest.c &&
2859 ${CC} -c conftest.c &&
2860 mv conftest.o conftest.o.g0 &&
2861 ${CC} -c -g conftest.c &&
2862 mv conftest.o conftest.o.g &&
2863 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2864 :
2865 else
2866 BUILD_CONFIG=
2867 fi
2868 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2869 ;;
2870 esac
2871fi
2872AC_MSG_RESULT($BUILD_CONFIG)
2873AC_SUBST(BUILD_CONFIG)
2874
2875# Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2876AC_MSG_CHECKING([for --enable-vtable-verify])
2877AC_ARG_ENABLE(vtable-verify,
318a4e6d
MF		 2878[AS_HELP_STRING([--enable-vtable-verify],
2879 [Enable vtable verification feature])],
beeda1d9
JJ		 2880[case "$enableval" in
2881 yes) enable_vtable_verify=yes ;;
2882 no) enable_vtable_verify=no ;;
2883 *) enable_vtable_verify=no;;
2884 esac],
2885[enable_vtable_verify=no])
2886AC_MSG_RESULT($enable_vtable_verify)
2887
4977bab6
ZW		 2888# Record target_configdirs and the configure arguments for target and
2889# build configuration in Makefile.
2890target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
23f6b2f9 2891build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
9e1c8fc1 2892bootstrap_fixincludes=no
4977bab6 2893
ad1e5170
JR		 2894# If we are building libgomp, bootstrap it.
2895if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2896 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2897fi
2898
beeda1d9
JJ		 2899# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2900# or bootstrap-ubsan, bootstrap it.
2901if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2902 case "$BUILD_CONFIG" in
170e618e 2903 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
beeda1d9 2904 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
9e1c8fc1 2905 bootstrap_fixincludes=yes
beeda1d9
JJ		 2906 ;;
2907 esac
ac8701fe
L		 2908fi
2909
beeda1d9
JJ		 2910# If we are building libvtv and --enable-vtable-verify, bootstrap it.
2911if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2912 test "$enable_vtable_verify" != no; then
2077db1b
CT		 2913 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2914fi
2915
5fee5ec3
IB		 2916# If we are building libatomic and the list of enabled languages includes the
2917# D frontend, bootstrap it.
2918if echo " ${target_configdirs} " | grep " libatomic " > /dev/null 2>&1; then
2919 case ,${enable_languages}, in
2920 *,d,*)
2921 bootstrap_target_libs=${bootstrap_target_libs}target-libatomic,
2922 ;;
2923 esac
2924fi
2925
4977bab6
ZW		 2926# Determine whether gdb needs tk/tcl or not.
2927# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2928# and in that case we want gdb to be built without tk. Ugh!
2929# In fact I believe gdb is the *only* package directly dependent on tk,
2930# so we should be able to put the 'maybe's in unconditionally and
2931# leave out the maybe dependencies when enable_gdbtk is false. I'm not
2932# 100% sure that that's safe though.
e914a571 2933
b4f96efe 2934gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
4977bab6
ZW		 2935case "$enable_gdbtk" in
2936 no)
2937 GDB_TK="" ;;
e914a571
AC		 2938 yes)
2939 GDB_TK="${gdb_tk}" ;;
4977bab6 2940 *)
e914a571
AC		 2941 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2942 # distro. Eventually someone will fix this and move Insight, nee
2943 # gdbtk to a separate directory.
2944 if test -d ${srcdir}/gdb/gdbtk ; then
2945 GDB_TK="${gdb_tk}"
2946 else
2947 GDB_TK=""
2948 fi
2949 ;;
4977bab6 2950esac
ef9db8d5
DJ		 2951CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2952INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
4977bab6 2953
f9d09df0
TT		 2954# gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
2955# else does, only include them if one of these is built. The Makefile
2956# provides the ordering, so it's enough here to add to the list.
2957case " ${configdirs} " in
2958 *\ gdb\ *)
2959 configdirs="${configdirs} gnulib gdbsupport"
2960 ;;
2961 *\ gdbserver\ *)
2962 configdirs="${configdirs} gnulib gdbsupport"
2963 ;;
f14c9bd4
MF		 2964 *\ sim\ *)
2965 configdirs="${configdirs} gnulib"
2966 ;;
f9d09df0 2967esac
98e5be21 2968
60975492 2969# Strip out unwanted targets.
8b87bb96
NN		 2970
2971# While at that, we remove Makefiles if we were started for recursive
2972# configuration, so that the top-level Makefile reconfigures them,
2973# like we used to do when configure itself was recursive.
8b87bb96 2974
3e54529c
RW		 2975# Loop over modules. We used to use the "$extrasub" feature from Autoconf
2976# but now we're fixing up the Makefile ourselves with the additional
2977# commands passed to AC_CONFIG_FILES. Use separate variables
2978# extrasub-{build,host,target} not because there is any reason to split
2979# the substitutions up that way, but only to remain below the limit of
2980# 99 commands in a script, for HP-UX sed.
da34ca3f
AO		 2981
2982# Do not nest @if/@endif or @unless/@endunless pairs, because
2983# configure will not warn you at all.
8b87bb96 2984
79cd2b23
RW		 2985case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2986 yes:yes:*\ gold\ *:*,c++,*) ;;
2987 yes:yes:*\ gold\ *:*)
2988 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2989 ;;
2990esac
2991
3e54529c 2992extrasub_build=
23f6b2f9 2993for module in ${build_configdirs} ; do
8b87bb96
NN		 2994 if test -z "${no_recursion}" \
2995 && test -f ${build_subdir}/${module}/Makefile; then
2996 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2997 rm -f ${build_subdir}/${module}/Makefile
2998 fi
3e54529c 2999 extrasub_build="$extrasub_build
60975492 3000/^@if build-$module\$/d
5607edfd 3001/^@endif build-$module\$/d
da34ca3f 3002/^@unless build-$module\$/,/^@endunless build-$module\$/d
5607edfd 3003/^@if build-$module-$bootstrap_suffix\$/d
da34ca3f
AO		 3004/^@endif build-$module-$bootstrap_suffix\$/d
3005/^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
8b87bb96 3006done
3e54529c 3007extrasub_host=
8b87bb96 3008for module in ${configdirs} ; do
a6fbc1e2 3009 if test -z "${no_recursion}"; then
f063a9ed 3010 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
a6fbc1e2
AS		 3011 if test -f ${file}; then
3012 echo 1>&2 "*** removing ${file} to force reconfigure"
3013 rm -f ${file}
3014 fi
3015 done
8b87bb96 3016 fi
9e1c8fc1
JJ		 3017 case ${module},${bootstrap_fixincludes} in
3018 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
3019 *) host_bootstrap_suffix=$bootstrap_suffix ;;
3020 esac
3e54529c 3021 extrasub_host="$extrasub_host
60975492 3022/^@if $module\$/d
5607edfd 3023/^@endif $module\$/d
da34ca3f 3024/^@unless $module\$/,/^@endunless $module\$/d
9e1c8fc1 3025/^@if $module-$host_bootstrap_suffix\$/d
da34ca3f
AO		 3026/^@endif $module-$host_bootstrap_suffix\$/d
3027/^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
8b87bb96 3028done
3e54529c 3029extrasub_target=
8b87bb96
NN		 3030for module in ${target_configdirs} ; do
3031 if test -z "${no_recursion}" \
3032 && test -f ${target_subdir}/${module}/Makefile; then
3033 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
3034 rm -f ${target_subdir}/${module}/Makefile
3035 fi
00020c16
ILT		 3036
3037 # We only bootstrap target libraries listed in bootstrap_target_libs.
3038 case $bootstrap_target_libs in
3039 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
3040 *) target_bootstrap_suffix=no-bootstrap ;;
3041 esac
3042
3e54529c 3043 extrasub_target="$extrasub_target
60975492 3044/^@if target-$module\$/d
5607edfd 3045/^@endif target-$module\$/d
da34ca3f 3046/^@unless target-$module\$/,/^@endunless target-$module\$/d
00020c16 3047/^@if target-$module-$target_bootstrap_suffix\$/d
da34ca3f
AO		 3048/^@endif target-$module-$target_bootstrap_suffix\$/d
3049/^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
4977bab6 3050done
f516a7da 3051
3e54529c
RW		 3052# Do the final fixup along with target modules.
3053extrasub_target="$extrasub_target
da34ca3f
AO		 3054/^@if /,/^@endif /d
3055/^@unless /d
3056/^@endunless /d"
4977bab6 3057
4a5e71f2
L		 3058if test "$enable_pgo_build" != "no"; then
3059 extrasub_build="$extrasub_build
3060/^@if pgo-build\$/d
3061/^@endif pgo-build\$/d"
3062fi
3063
4977bab6
ZW		 3064# Create the serialization dependencies. This uses a temporary file.
3065
ade82b16 3066AC_ARG_ENABLE([serial-configure],
33e39b66
AS		 3067[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
3068 [force sequential configuration of
3069 sub-packages for the host, target or build
3070 machine, or all sub-packages])])
bf1d3e81
NN		 3071
3072case ${enable_serial_configure} in
3073 yes)
3074 enable_serial_build_configure=yes
3075 enable_serial_host_configure=yes
3076 enable_serial_target_configure=yes
3077 ;;
3078esac
ade82b16 3079
4977bab6
ZW		 3080# These force 'configure's to be done one at a time, to avoid problems
3081# with contention over a shared config.cache.
3082rm -f serdep.tmp
ade82b16 3083echo '# serdep.tmp' > serdep.tmp
4977bab6 3084olditem=
bf1d3e81 3085test "x${enable_serial_build_configure}" = xyes &&
4977bab6
ZW		 3086for item in ${build_configdirs} ; do
3087 case ${olditem} in
3088 "") ;;
ade82b16 3089 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3090 esac
3091 olditem=${item}
3092done
3093olditem=
bf1d3e81 3094test "x${enable_serial_host_configure}" = xyes &&
4977bab6
ZW		 3095for item in ${configdirs} ; do
3096 case ${olditem} in
3097 "") ;;
ade82b16 3098 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3099 esac
3100 olditem=${item}
3101done
3102olditem=
bf1d3e81 3103test "x${enable_serial_target_configure}" = xyes &&
4977bab6
ZW		 3104for item in ${target_configdirs} ; do
3105 case ${olditem} in
3106 "") ;;
ade82b16 3107 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3108 esac
3109 olditem=${item}
3110done
671aa708
NN		 3111serialization_dependencies=serdep.tmp
3112AC_SUBST_FILE(serialization_dependencies)
fe3d5b7f 3113
ade82b16 3114# Base args. Strip norecursion, cache-file, srcdir, host, build,
1c710c3c 3115# target, nonopt, and variable assignments. These are the ones we
f1a036e4
NC		 3116# might not want to pass down to subconfigures. The exception being
3117# --cache-file=/dev/null, which is used to turn off the use of cache
3118# files altogether, and which should be passed on to subconfigures.
3119# Also strip program-prefix, program-suffix, and program-transform-name,
3120# so that we can pass down a consistent program-transform-name.
1c710c3c 3121baseargs=
29a63921 3122tbaseargs=
1c710c3c
DJ		 3123keep_next=no
3124skip_next=no
3125eval "set -- $ac_configure_args"
44bfc3ac
DJ		 3126for ac_arg
3127do
1c710c3c
DJ		 3128 if test X"$skip_next" = X"yes"; then
3129 skip_next=no
3130 continue
3131 fi
3132 if test X"$keep_next" = X"yes"; then
3133 case $ac_arg in
3134 *\'*)
3135 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3136 esac
3137 baseargs="$baseargs '$ac_arg'"
29a63921 3138 tbaseargs="$tbaseargs '$ac_arg'"
1c710c3c
DJ		 3139 keep_next=no
3140 continue
3141 fi
3142
3143 # Handle separated arguments. Based on the logic generated by
3144 # autoconf 2.59.
3145 case $ac_arg in
3146 *=* | --config-cache | -C | -disable-* | --disable-* \
3147 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3148 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3149 | -with-* | --with-* | -without-* | --without-* | --x)
3150 separate_arg=no
3151 ;;
3152 -*)
3153 separate_arg=yes
3154 ;;
3155 *)
3156 separate_arg=no
3157 ;;
3158 esac
3159
29a63921
AO		 3160 skip_targ=no
3161 case $ac_arg in
3162changequote(,)
3163 --with-* | --without-*)
3164 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3165
3166 case $libopt in
3167 *[-_]include)
3168 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3169 ;;
3170 *[-_]lib)
3171 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3172 ;;
3173 *)
3174 lib=$libopt
3175 ;;
3176 esac
3177changequote([,])
3178
3179 case $lib in
4a9bb2aa 3180 mpc | mpfr | gmp | isl)
29a63921
AO		 3181 # If we're processing --with-$lib, --with-$lib-include or
3182 # --with-$lib-lib, for one of the libs above, and target is
3183 # different from host, don't pass the current argument to any
3184 # target library's configure.
3185 if test x$is_cross_compiler = xyes; then
3186 skip_targ=yes
3187 fi
3188 ;;
3189 esac
3190 ;;
3191 esac
3192
1c710c3c 3193 case "$ac_arg" in
f1a036e4
NC		 3194 --cache-file=/dev/null | \
3195 -cache-file=/dev/null )
3196 # Handled here to avoid the test to skip args below.
3197 baseargs="$baseargs '$ac_arg'"
29a63921 3198 tbaseargs="$tbaseargs '$ac_arg'"
f1a036e4
NC		 3199 # Assert: $separate_arg should always be no.
3200 keep_next=$separate_arg
3201 ;;
1c710c3c
DJ		 3202 --no*)
3203 continue
3204 ;;
3205 --c* | \
3206 --sr* | \
3207 --ho* | \
3208 --bu* | \
3209 --t* | \
3210 --program-* | \
3211 -cache_file* | \
3212 -srcdir* | \
3213 -host* | \
3214 -build* | \
3215 -target* | \
3216 -program-prefix* | \
3217 -program-suffix* | \
3218 -program-transform-name* )
3219 skip_next=$separate_arg
3220 continue
3221 ;;
3222 -*)
3223 # An option. Add it.
3224 case $ac_arg in
3225 *\'*)
3226 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3227 esac
3228 baseargs="$baseargs '$ac_arg'"
29a63921
AO		 3229 if test X"$skip_targ" = Xno; then
3230 tbaseargs="$tbaseargs '$ac_arg'"
3231 fi
1c710c3c
DJ		 3232 keep_next=$separate_arg
3233 ;;
3234 *)
3235 # Either a variable assignment, or a nonopt (triplet). Don't
3236 # pass it down; let the Makefile handle this.
3237 continue
3238 ;;
3239 esac
3240done
3241# Remove the initial space we just introduced and, as these will be
3242# expanded by make, quote '$'.
3243baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
6599da04 3244
43bb47c2
DJ		 3245# Add in --program-transform-name, after --program-prefix and
3246# --program-suffix have been applied to it. Autoconf has already
3247# doubled dollar signs and backslashes in program_transform_name; we want
3248# the backslashes un-doubled, and then the entire thing wrapped in single
3249# quotes, because this will be expanded first by make and then by the shell.
3250# Also, because we want to override the logic in subdir configure scripts to
3251# choose program_transform_name, replace any s,x,x, with s,y,y,.
3252sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3253${program_transform_name}
3254EOF_SED
3255gcc_transform_name=`cat conftestsed.out`
3256rm -f conftestsed.out
3257baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
29a63921 3258tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
d9acb717
RW		 3259if test "$silent" = yes; then
3260 baseargs="$baseargs --silent"
29a63921 3261 tbaseargs="$tbaseargs --silent"
d9acb717 3262fi
0115d4a3 3263baseargs="$baseargs --disable-option-checking"
29a63921 3264tbaseargs="$tbaseargs --disable-option-checking"
43bb47c2 3265
ffedf511
RW		 3266# Record and document user additions to sub configure arguments.
3267AC_ARG_VAR([build_configargs],
3268 [additional configure arguments for build directories])
3269AC_ARG_VAR([host_configargs],
3270 [additional configure arguments for host directories])
3271AC_ARG_VAR([target_configargs],
3272 [additional configure arguments for target directories])
3273
e490616e
ZW		 3274# For the build-side libraries, we just need to pretend we're native,
3275# and not use the same cache file. Multilibs are neither needed nor
3d96b0d0
HPN		 3276# desired. We can't even use the same cache file for all build-side
3277# libraries, as they're compiled differently; some with C, some with
3278# C++ or with different feature-enabling options.
3279build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
e254d6b5 3280
4977bab6
ZW		 3281# For host modules, accept cache file option, or specification as blank.
3282case "${cache_file}" in
3283"") # empty
3284 cache_file_option="" ;;
671aa708 3285/* | [[A-Za-z]]:[[\\/]]* ) # absolute path
4977bab6
ZW		 3286 cache_file_option="--cache-file=${cache_file}" ;;
3287*) # relative path
3288 cache_file_option="--cache-file=../${cache_file}" ;;
3289esac
3290
09438bde
NN		 3291# Host dirs don't like to share a cache file either, horribly enough.
3292# This seems to be due to autoconf 2.5x stupidity.
ffedf511 3293host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
4977bab6 3294
29a63921 3295target_configargs="$target_configargs ${tbaseargs}"
e490616e 3296
6599da04
JM		 3297# Passing a --with-cross-host argument lets the target libraries know
3298# whether they are being built with a cross-compiler or being built
3299# native. However, it would be better to use other mechanisms to make the
3300# sorts of decisions they want to make on this basis. Please consider
3301# this option to be deprecated. FIXME.
aeaa0f2f 3302if test x${is_cross_compiler} = xyes ; then
1c710c3c 3303 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
6599da04
JM		 3304fi
3305
79e0604d
FXC		 3306# Special user-friendly check for native x86_64-linux build, if
3307# multilib is not explicitly enabled.
3308case "$target:$have_compiler:$host:$target:$enable_multilib" in
3309 x86_64-*linux*:yes:$build:$build:)
e640447c 3310 # Make sure we have a development environment that handles 32-bit
79e0604d
FXC		 3311 dev64=no
3312 echo "int main () { return 0; }" > conftest.c
3313 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3314 if test $? = 0 ; then
3315 if test -s conftest || test -s conftest.exe ; then
3316 dev64=yes
3317 fi
3318 fi
3319 rm -f conftest*
3320 if test x${dev64} != xyes ; then
e640447c 3321 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		 3322 fi
3323 ;;
3324esac
3325
dc683a3f
RW		 3326# Default to --enable-multilib.
3327if test x${enable_multilib} = x ; then
3fedb745 3328 target_configargs="--enable-multilib ${target_configargs}"
dc683a3f 3329fi
6599da04 3330
5d4a5ee6
JL		 3331# Pass --with-newlib if appropriate. Note that target_configdirs has
3332# changed from the earlier setting of with_newlib.
aeaa0f2f 3333if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3fedb745 3334 target_configargs="--with-newlib ${target_configargs}"
5d4a5ee6
JL		 3335fi
3336
6b9eb62c
NN		 3337# Different target subdirs use different values of certain variables
3338# (notably CXX). Worse, multilibs use *lots* of different values.
3339# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3340# it doesn't automatically accept command-line overrides of them.
3341# This means it's not safe for target subdirs to share a cache file,
3342# which is disgusting, but there you have it. Hopefully this can be
3343# fixed in future. It's still worthwhile to use a cache file for each
3344# directory. I think.
3345
bebcd931
MS		 3346# Pass the appropriate --build, --host, --target and --cache-file arguments.
3347# We need to pass --target, as newer autoconf's requires consistency
3348# for target_alias and gcc doesn't manage it consistently.
e69bf64b 3349target_configargs="--cache-file=./config.cache ${target_configargs}"
e490616e 3350
b87487b6 3351FLAGS_FOR_TARGET=
bb654703 3352case " $target_configdirs " in
7965440a 3353 *" newlib "*)
3fedb745 3354 case " $target_configargs " in
7965440a 3355 *" --with-newlib "*)
b87487b6 3356 case "$target" in
5d571eaa 3357 *-cygwin*)
443e6238 3358 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
5d571eaa 3359 ;;
b87487b6
AO		 3360 esac
3361
afd7db25 3362 # If we're not building GCC, don't discard standard headers.
ef40bc65 3363 if test -d ${srcdir}/gcc; then
d4eb109c 3364 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
afd7db25
AO		 3365
3366 if test "${build}" != "${host}"; then
3367 # On Canadian crosses, CC_FOR_TARGET will have already been set
3368 # by `configure', so we won't have an opportunity to add -Bgcc/
3369 # to it. This is right: we don't want to search that directory
3370 # for binaries, but we want the header files in there, so add
3371 # them explicitly.
0463992b 3372 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
afd7db25
AO		 3373
3374 # Someone might think of using the pre-installed headers on
3375 # Canadian crosses, in case the installed compiler is not fully
3376 # compatible with the compiler being built. In this case, it
3377 # would be better to flag an error than risking having
3378 # incompatible object files being constructed. We can't
3379 # guarantee that an error will be flagged, but let's hope the
3380 # compiler will do it, when presented with incompatible header
3381 # files.
3382 fi
d4eb109c
AO		 3383 fi
3384
ab50d72b 3385 case "${target}-${is_cross_compiler}" in
f2a0e225 3386 i[[3456789]]86-*-linux*-no)
ab50d72b
DD		 3387 # Here host == target, so we don't need to build gcc,
3388 # so we don't want to discard standard headers.
3389 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
ab50d72b
DD		 3390 ;;
3391 *)
3392 # If we're building newlib, use its generic headers last, but search
3393 # for any libc-related directories first (so make it the last -B
3394 # switch).
3395 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
c03353e2
RIL		 3396
3397 # If we're building libgloss, find the startup file, simulator library
3398 # and linker script.
3399 case " $target_configdirs " in
3400 *" libgloss "*)
3401 # Look for startup file, simulator library and maybe linker script.
3402 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3403 # Look for libnosys.a in case the target needs it.
3404 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3405 # Most targets have the linker script in the source directory.
3406 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3407 ;;
3408 esac
ab50d72b
DD		 3409 ;;
3410 esac
b87487b6 3411 ;;
7965440a
AO		 3412 esac
3413 ;;
b87487b6 3414esac
5d571eaa 3415
b91f0a41 3416case "$target" in
5d571eaa
OS		 3417 x86_64-*mingw* | *-w64-mingw*)
3418 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3419 # however, use a symlink named 'mingw' in ${prefix} .
3420 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3421 ;;
3422 *-mingw*)
3423 # MinGW can't be handled as Cygwin above since it does not use newlib.
3424 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3425 ;;
b91f0a41 3426esac
d4eb109c 3427
6691a79e
ME		 3428# Allow the user to override the flags for
3429# our build compiler if desired.
f019adc1
MF		 3430if test x"${build}" = x"${host}" ; then
3431 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
84401ce5 3432 CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}}
f019adc1
MF		 3433 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3434 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3435fi
6691a79e 3436
d4eb109c
AO		 3437# On Canadian crosses, we'll be searching the right directories for
3438# the previously-installed cross compiler, so don't bother to add
3439# flags for directories within the install tree of the compiler
3440# being built; programs in there won't even run.
ef40bc65 3441if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
b87487b6 3442 # Search for pre-installed headers if nothing else fits.
9124bc53 3443 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
b87487b6 3444fi
d4eb109c 3445
bb654703 3446if test "x${use_gnu_ld}" = x &&
55380b08 3447 echo " ${configdirs} " | grep " ld " > /dev/null ; then
b87487b6 3448 # Arrange for us to find uninstalled linker scripts.
215c351a 3449 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
b87487b6
AO		 3450fi
3451
e88a2c09
DD		 3452# Search for other target-specific linker scripts and such.
3453case "${target}" in
3e19841a
PB		 3454 mep*)
3455 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3456 ;;
e88a2c09
DD		 3457esac
3458
671aa708 3459# Makefile fragments.
7b61653a
PE		 3460for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3461do
3462 eval fragval=\$$frag
3463 if test $fragval != /dev/null; then
3464 eval $frag=${srcdir}/$fragval
3465 fi
3466done
671aa708
NN		 3467AC_SUBST_FILE(host_makefile_frag)
3468AC_SUBST_FILE(target_makefile_frag)
3469AC_SUBST_FILE(alphaieee_frag)
3470AC_SUBST_FILE(ospace_frag)
3471
3472# Miscellanea: directories, flags, etc.
671aa708 3473AC_SUBST(RPATH_ENVVAR)
d89f0ad6 3474AC_SUBST(GCC_SHLIB_SUBDIR)
671aa708
NN		 3475AC_SUBST(tooldir)
3476AC_SUBST(build_tooldir)
ef9db8d5 3477AC_SUBST(CONFIGURE_GDB_TK)
671aa708 3478AC_SUBST(GDB_TK)
ef9db8d5 3479AC_SUBST(INSTALL_GDB_TK)
671aa708
NN		 3480
3481# Build module lists & subconfigure args.
671aa708 3482AC_SUBST(build_configargs)
23f6b2f9 3483AC_SUBST(build_configdirs)
671aa708
NN		 3484
3485# Host module lists & subconfigure args.
3486AC_SUBST(host_configargs)
3487AC_SUBST(configdirs)
aae29963 3488AC_SUBST(target_configdirs)
671aa708
NN		 3489
3490# Target module lists & subconfigure args.
671aa708 3491AC_SUBST(target_configargs)
ee2312f3 3492
671aa708
NN		 3493
3494# Build tools.
0999159b
PB		 3495AC_SUBST(AR_FOR_BUILD)
3496AC_SUBST(AS_FOR_BUILD)
671aa708 3497AC_SUBST(CC_FOR_BUILD)
0999159b 3498AC_SUBST(CFLAGS_FOR_BUILD)
84401ce5
RP		 3499AC_SUBST(CPP_FOR_BUILD)
3500AC_SUBST(CPPFLAGS_FOR_BUILD)
0999159b
PB		 3501AC_SUBST(CXXFLAGS_FOR_BUILD)
3502AC_SUBST(CXX_FOR_BUILD)
3503AC_SUBST(DLLTOOL_FOR_BUILD)
3b5e8ee4 3504AC_SUBST(DSYMUTIL_FOR_BUILD)
0999159b 3505AC_SUBST(GFORTRAN_FOR_BUILD)
632e2a07 3506AC_SUBST(GOC_FOR_BUILD)
b4c522fa 3507AC_SUBST(GDC_FOR_BUILD)
0999159b
PB		 3508AC_SUBST(LDFLAGS_FOR_BUILD)
3509AC_SUBST(LD_FOR_BUILD)
3510AC_SUBST(NM_FOR_BUILD)
3511AC_SUBST(RANLIB_FOR_BUILD)
3512AC_SUBST(WINDMC_FOR_BUILD)
3513AC_SUBST(WINDRES_FOR_BUILD)
671aa708 3514
2abefe3d
PB		 3515# Generate default definitions for YACC, M4, LEX and other programs that run
3516# on the build machine. These are used if the Makefile can't locate these
3517# programs in objdir.
3518MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3519
3520AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3521case " $build_configdirs " in
3522 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2abefe3d
PB		 3523esac
3524
3525AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3526case " $build_configdirs " in
3527 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3528esac
3529
3530AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3531case " $build_configdirs " in
3532 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3533esac
3534
3535AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3536case " $build_configdirs " in
3537 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3538 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3539esac
3540
3541AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3542case " $build_configdirs " in
3543 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3544esac
3545
3546AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3547case " $build_configdirs " in
3548 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3549 *)
3550changequote(,)
d18ff35a 3551 # For an installed makeinfo, we require it to be from texinfo 4.7 or
2abefe3d
PB		 3552 # higher, else we use the "missing" dummy.
3553 if ${MAKEINFO} --version \
d18ff35a 3554 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
2abefe3d
PB		 3555 :
3556 else
3557 MAKEINFO="$MISSING makeinfo"
3558 fi
3559 ;;
3560changequote([,])
3561esac
3562
3563# FIXME: expect and dejagnu may become build tools?
3564
3565AC_CHECK_PROGS(EXPECT, expect, expect)
3566case " $configdirs " in
3567 *" expect "*)
3568 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3569 ;;
3570esac
3571
3572AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3573case " $configdirs " in
3574 *" dejagnu "*)
c394e891 3575 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2abefe3d
PB		 3576 ;;
3577esac
3578
3579
671aa708 3580# Host tools.
2693c0b0
PB		 3581NCN_STRICT_CHECK_TOOLS(AR, ar)
3582NCN_STRICT_CHECK_TOOLS(AS, as)
3583NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3b5e8ee4 3584NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil)
2693c0b0 3585NCN_STRICT_CHECK_TOOLS(LD, ld)
2abefe3d 3586NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2693c0b0 3587NCN_STRICT_CHECK_TOOLS(NM, nm)
8927b7c0
RO		 3588NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3589NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
2693c0b0 3590NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
901119ae 3591NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
2693c0b0
PB		 3592NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3593NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
e4a9a572 3594NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
e7a82751 3595NCN_STRICT_CHECK_TOOLS(READELF, readelf)
671aa708
NN		 3596AC_SUBST(CC)
3597AC_SUBST(CXX)
3598AC_SUBST(CFLAGS)
3599AC_SUBST(CXXFLAGS)
5fee5ec3
IB		 3600AC_SUBST(GDC)
3601AC_SUBST(GDCFLAGS)
671aa708 3602
2abefe3d 3603# Target tools.
e8b05380 3604AC_ARG_WITH([build-time-tools],
33e39b66
AS		 3605 [AS_HELP_STRING([--with-build-time-tools=PATH],
3606 [use given path to find target tools during the build])],
e8b05380
PB		 3607 [case x"$withval" in
3608 x/*) ;;
3609 *)
3610 with_build_time_tools=
3611 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3612 ;;
3613 esac],
3614 [with_build_time_tools=])
3615
2693c0b0
PB		 3616NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3617NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2693c0b0 3618NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2693c0b0 3619NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
632e2a07 3620NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
b4c522fa 3621NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
e8b05380
PB		 3622
3623ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3624ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3625ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3b5e8ee4 3626ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil)
e8b05380
PB		 3627ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3628ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3629ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
9bccfdf5 3630ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
e8b05380 3631ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
e4a9a572 3632ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
8927b7c0 3633ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
e7a82751 3634ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
e8b05380
PB		 3635ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3636ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
901119ae 3637ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
4de997d1 3638
2abefe3d
PB		 3639RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3640
3641GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3642GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3643GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
b3f122e0 3644dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
2abefe3d 3645GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2077db1b 3646 [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		 3647 c++)
3648GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2077db1b 3649 [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		 3650 c++)
3651GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3b5e8ee4 3652GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL)
2abefe3d 3653GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2abefe3d
PB		 3654GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3655 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
632e2a07
ILT		 3656GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3657 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
b4c522fa
IB		 3658GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3659 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
2abefe3d
PB		 3660GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3661GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3662GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
ec8fd1c0 3663GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
2abefe3d 3664GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
e4a9a572 3665GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
2abefe3d 3666GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
e7a82751 3667GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
455c8f48 3668GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
2abefe3d 3669GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
901119ae 3670GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
4de997d1 3671
2abefe3d 3672AC_SUBST(FLAGS_FOR_TARGET)
4de997d1 3673AC_SUBST(RAW_CXX_FOR_TARGET)
be912515 3674
671aa708
NN		 3675# Certain tools may need extra flags.
3676AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3677RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3678NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
6599da04 3679
2abefe3d
PB		 3680# When building target libraries, except in a Canadian cross, we use
3681# the same toolchain as the compiler we just built.
3682COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3683COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3684COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3685if test $host = $build; then
3686 case " $configdirs " in
3687 *" gcc "*)
3688 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3689 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3690 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3691 ;;
3692 esac
3693fi
3694
3695AC_SUBST(COMPILER_AS_FOR_TARGET)
3696AC_SUBST(COMPILER_LD_FOR_TARGET)
3697AC_SUBST(COMPILER_NM_FOR_TARGET)
3698
ee03dc5e
AO		 3699AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3700AC_ARG_ENABLE(maintainer-mode,
33e39b66
AS		 3701[AS_HELP_STRING([--enable-maintainer-mode],
3702 [enable make rules and dependencies not useful
3703 (and sometimes confusing) to the casual installer])],
ee03dc5e
AO		 3704 USE_MAINTAINER_MODE=$enableval,
3705 USE_MAINTAINER_MODE=no)
3706AC_MSG_RESULT($USE_MAINTAINER_MODE)
3707AC_SUBST(MAINTAINER_MODE_TRUE)
3708AC_SUBST(MAINTAINER_MODE_FALSE)
3709if test "$USE_MAINTAINER_MODE" = yes; then
3710 MAINTAINER_MODE_TRUE=
3711 MAINTAINER_MODE_FALSE='#'
3712else
3713 MAINTAINER_MODE_TRUE='#'
3714 MAINTAINER_MODE_FALSE=
3715fi
3716MAINT=$MAINTAINER_MODE_TRUE
3717AC_SUBST(MAINT)dnl
3718
2805b53a
NN		 3719# ---------------------
3720# GCC bootstrap support
3721# ---------------------
3722
3723# Stage specific cflags for build.
3724stage1_cflags="-g"
3725case $build in
3726 vax-*-*)
3727 case ${GCC} in
3728 yes) stage1_cflags="-g -Wa,-J" ;;
3729 *) stage1_cflags="-g -J" ;;
3730 esac ;;
2805b53a 3731esac
0b50988a 3732
2805b53a
NN		 3733AC_SUBST(stage1_cflags)
3734
8efea775
PB		 3735# Enable --enable-checking in stage1 of the compiler.
3736AC_ARG_ENABLE(stage1-checking,
33e39b66
AS		 3737[AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3738 [choose additional checking for stage1 of the compiler])],
8efea775 3739[stage1_checking=--enable-checking=${enable_stage1_checking}],
e643dc23 3740[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
c10b5ea0
JJ		 3741 # For --disable-checking or implicit --enable-checking=release, avoid
3742 # setting --enable-checking=gc in the default stage1 checking for LTO
3743 # bootstraps. See PR62077.
c10b5ea0
JJ		 3744 case $BUILD_CONFIG in
3745 *lto*)
7db11a5a
JJ		 3746 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3747 *)
3748 stage1_checking=--enable-checking=yes,types;;
c10b5ea0 3749 esac
7db11a5a
JJ		 3750 if test "x$enable_checking" = x && \
3751 test -d ${srcdir}/gcc && \
3752 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
c100769b 3753 stage1_checking=--enable-checking=yes,types,extra
7db11a5a 3754 fi
8efea775 3755else
e643dc23 3756 stage1_checking=--enable-checking=$enable_checking,types
8efea775
PB		 3757fi])
3758AC_SUBST(stage1_checking)
3759
2805b53a 3760# Enable -Werror in bootstrap stage2 and later.
2805b53a 3761AC_ARG_ENABLE(werror,
33e39b66 3762[AS_HELP_STRING([--enable-werror],
afd88efc
ML		 3763 [enable -Werror in bootstrap stage2 and later])],
3764[
09a9c095
NN		 3765case ${enable_werror} in
3766 yes) stage2_werror_flag="--enable-werror-always" ;;
3767 *) stage2_werror_flag="" ;;
2805b53a 3768esac
afd88efc
ML		 3769],
3770[
01c712cb
ML		 3771if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3772 case $BUILD_CONFIG in
3773 bootstrap-debug)
3774 stage2_werror_flag="--enable-werror-always" ;;
3775 "")
3776 stage2_werror_flag="--enable-werror-always" ;;
3777 esac
3778fi
afd88efc 3779])
01c712cb 3780
09a9c095 3781AC_SUBST(stage2_werror_flag)
2805b53a 3782
f2689b09
SE		 3783# Specify what files to not compare during bootstrap.
3784
3785compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3786case "$target" in
3787 hppa*64*-*-hpux*) ;;
4f943869
MK		 3788 hppa*-*-hpux*) compare_exclusions="$compare_exclusions | */libgcc/lib2funcs* | gcc/function-tests.o" ;;
3789 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
f2689b09
SE		 3790esac
3791AC_SUBST(compare_exclusions)
3792
3e54529c
RW		 3793AC_CONFIG_FILES([Makefile],
3794 [sed "$extrasub_build" Makefile |
3795 sed "$extrasub_host" |
3796 sed "$extrasub_target" > mf$$
3797 mv -f mf$$ Makefile],
3798 [extrasub_build="$extrasub_build"
3799 extrasub_host="$extrasub_host"
3800 extrasub_target="$extrasub_target"])
3801AC_OUTPUT
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