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libstdc++: Simplify constraints on <=> for std::reference_wrapper
[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,
88252529 3# 2014, 2015, 2016, 2019, 2022 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)
126f707e 27m4_include(config/gcc-plugin.m4)
592c90ff
KG		 28m4_include([libtool.m4])
29m4_include([ltoptions.m4])
30m4_include([ltsugar.m4])
31m4_include([ltversion.m4])
32m4_include([lt~obsolete.m4])
33ad93b9 33m4_include([config/isl.m4])
ad6717df 34
671aa708 35AC_INIT(move-if-change)
0115d4a3 36AC_DISABLE_OPTION_CHECKING
1c710c3c 37
ad33ff57
RW		 38progname=$0
39# if PWD already has a value, it is probably wrong.
40if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
41
42# Export original configure arguments for use by sub-configures.
43# Quote arguments with shell meta charatcers.
44TOPLEVEL_CONFIGURE_ARGUMENTS=
45set -- "$progname" "$@"
46for ac_arg
47do
48 case "$ac_arg" in
49 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
50 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
51 # if the argument is of the form -foo=baz, quote the baz part only
52 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
53 *) ;;
54 esac
55 # Add the quoted argument to the list.
56 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
57done
58if test "$silent" = yes; then
59 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
60fi
61# Remove the initial space we just introduced and, as these will be
62# expanded by make, quote '$'.
63TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
64AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
65
1c710c3c
DJ		 66# Find the build, host, and target systems.
67ACX_NONCANONICAL_BUILD
68ACX_NONCANONICAL_HOST
69ACX_NONCANONICAL_TARGET
70
71dnl Autoconf 2.5x and later will set a default program prefix if
72dnl --target was used, even if it was the same as --host. Disable
73dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
74dnl to take effect.
75test "$host_noncanonical" = "$target_noncanonical" &&
76 test "$program_prefix$program_suffix$program_transform_name" = \
77 NONENONEs,x,x, &&
78 program_transform_name=s,y,y,
79
671aa708
NN		 80AC_CANONICAL_SYSTEM
81AC_ARG_PROGRAM
82
1c710c3c 83m4_pattern_allow([^AS_FOR_TARGET$])dnl
0999159b 84m4_pattern_allow([^AS_FOR_BUILD$])dnl
1c710c3c 85
775956d0
NN		 86# Get 'install' or 'install-sh' and its variants.
87AC_PROG_INSTALL
ad6717df 88ACX_PROG_LN
148907ea 89AC_PROG_LN_S
87264276
PB		 90AC_PROG_SED
91AC_PROG_AWK
775956d0 92
fc45f3fe
DJ		 93srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
94
95# We pass INSTALL explicitly to sub-makes. Make sure that it is not
96# a relative path.
97if test "$INSTALL" = "${srcdir}/install-sh -c"; then
98 INSTALL="${srcpwd}/install-sh -c"
99fi
100
671aa708
NN		 101# Set srcdir to "." if that's what it is.
102# This is important for multilib support.
103pwd=`${PWDCMD-pwd}`
671aa708
NN		 104if test "${pwd}" = "${srcpwd}" ; then
105 srcdir=.
106fi
107
108topsrcdir=$srcpwd
6599da04 109
4977bab6 110extra_host_args=
afabd8e6 111
6599da04
JM		 112### To add a new directory to the tree, first choose whether it is a target
113### or a host dependent tool. Then put it into the appropriate list
4977bab6
ZW		 114### (library or tools, host or target), doing a dependency sort.
115
116# Subdirs will be configured in the order listed in build_configdirs,
117# configdirs, or target_configdirs; see the serialization section below.
118
119# Dependency sorting is only needed when *configuration* must be done in
120# a particular order. In all cases a dependency should be specified in
121# the Makefile, whether or not it's implicitly specified here.
6599da04 122
4977bab6
ZW		 123# Double entries in build_configdirs, configdirs, or target_configdirs may
124# cause circular dependencies and break everything horribly.
6599da04 125
23f6b2f9
PB		 126# these library is used by various programs built for the build
127# environment
128#
929315a9 129build_libs="build-libiberty build-libcpp"
23f6b2f9
PB		 130
131# these tools are built for the build environment
85bfb75e 132build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
23f6b2f9 133
6599da04 134# these libraries are used by various programs built for the host environment
eae1a5d4 135#f
725fb359 136host_libs="gettext libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libcody libdecnumber gmp mpfr mpc isl libiconv libctf libsframe libgrust "
6599da04 137
6599da04
JM		 138# these tools are built for the host environment
139# Note, the powerpc-eabi build depends on sim occurring before gdb in order to
140# know that we are building the simulator.
4977bab6
ZW		 141# binutils, gas and ld appear in that order because it makes sense to run
142# "make check" in that particular order.
38e3d868 143# If --enable-gold is used, "gold" may replace "ld".
1eee94d3 144host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gdbserver gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gm2tools gotools c++tools"
5d4a5ee6 145
6599da04
JM		 146# these libraries are built for the target environment, and are built after
147# the host libraries and the host tools (which may be a cross compiler)
8499116a 148# Note that libiberty is not a target library.
291f172e 149target_libraries="target-libgcc \
eff02e4f 150 target-libbacktrace \
5d4a5ee6
JL		 151 target-libgloss \
152 target-newlib \
6d3b5aea 153 target-libgomp \
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 \
1eee94d3 165 target-libgm2 \
b4c522fa 166 target-libgo \
725fb359 167 target-libgrust \
bb50312e
IB		 168 target-libphobos \
169 target-zlib"
6599da04 170
4dbda6f0
NN		 171# these tools are built using the target libraries, and are intended to
172# run only in the target environment
6599da04 173#
4dbda6f0 174# note: any program that *uses* libraries that are in the "target_libraries"
1bcce263 175# list belongs in this list.
6599da04 176#
85bfb75e 177target_tools="target-rda"
6599da04
JM		 178
179################################################################################
180
6599da04
JM		 181## All tools belong in one of the four categories, and are assigned above
182## We assign ${configdirs} this way to remove all embedded newlines. This
183## is important because configure will choke if they ever get through.
184## ${configdirs} is directories we build using the host tools.
185## ${target_configdirs} is directories we build using the target tools.
6599da04 186configdirs=`echo ${host_libs} ${host_tools}`
4dbda6f0 187target_configdirs=`echo ${target_libraries} ${target_tools}`
71b5d516 188build_configdirs=`echo ${build_libs} ${build_tools}`
8b87bb96 189
ac9e6043 190m4_divert_text([PARSE_ARGS],
87841584
AM		 191[case $srcdir in
192 *" "*)
193m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
194 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
195m4_popdef([AS_MESSAGE_LOG_FD])dnl
196 ;;
197esac
198ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
ac9e6043
RW		 199])
200
6599da04
JM		 201################################################################################
202
6599da04
JM		 203srcname="gnu development package"
204
205# This gets set non-empty for some net releases of packages.
206appdirs=""
207
e1848dde
NN		 208# Define is_cross_compiler to save on calls to 'test'.
209is_cross_compiler=
210if test x"${host}" = x"${target}" ; then
211 is_cross_compiler=no
212else
213 is_cross_compiler=yes
214fi
215
b4acb5ef 216# Find the build and target subdir names.
8b87bb96 217GCC_TOPLEV_SUBDIRS
0db770bd
RW		 218# Be sure to cover against remnants of an in-tree build.
219if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
220 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
221Use a pristine source tree when building in a separate tree])
222fi
f653f0ab 223
55380b08
NN		 224# Skipdirs are removed silently.
225skipdirs=
226# Noconfigdirs are removed loudly.
227noconfigdirs=""
6599da04 228
55380b08
NN		 229use_gnu_ld=
230# Make sure we don't let GNU ld be added if we didn't want it.
231if test x$with_gnu_ld = xno ; then
232 use_gnu_ld=no
5afab7ad 233 noconfigdirs="$noconfigdirs ld gold"
6599da04
JM		 234fi
235
55380b08
NN		 236use_gnu_as=
237# Make sure we don't let GNU as be added if we didn't want it.
238if test x$with_gnu_as = xno ; then
239 use_gnu_as=no
240 noconfigdirs="$noconfigdirs gas"
6599da04
JM		 241fi
242
d7f09764 243use_included_zlib=
a05c2c75
L		 244AC_ARG_WITH(system-zlib,
245[AS_HELP_STRING([--with-system-zlib], [use installed libz])])
d7f09764
DN		 246# Make sure we don't let ZLIB be added if we didn't want it.
247if test x$with_system_zlib = xyes ; then
248 use_included_zlib=no
249 noconfigdirs="$noconfigdirs zlib"
250fi
251
36ba9851
ДП		 252# Don't compile the bundled readline/libreadline.a if --with-system-readline
253# is provided.
254if test x$with_system_readline = xyes ; then
255 noconfigdirs="$noconfigdirs readline"
256fi
257
407a2c9a
FS		 258AC_ARG_WITH(zstd,
259[AS_HELP_STRING([--with-zstd], [Support zstd compressed debug sections (default=auto)])])
260
55380b08
NN		 261# some tools are so dependent upon X11 that if we're not building with X,
262# it's not even worth trying to configure, much less build, that tool.
6599da04 263
55380b08
NN		 264case ${with_x} in
265 yes | "") ;; # the default value for this tree is that X11 is available
423ce3eb 266 no)
b4f96efe 267 skipdirs="${skipdirs} tk itcl libgui"
423ce3eb
NN		 268 # We won't be able to build gdbtk without X.
269 enable_gdbtk=no
270 ;;
55380b08
NN		 271 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
272esac
6599da04 273
1bcce263 274# Some are only suitable for cross toolchains.
95ddd785
NN		 275# Remove these if host=target.
276cross_only="target-libgloss target-newlib target-opcodes"
6599da04 277
55380b08
NN		 278case $is_cross_compiler in
279 no) skipdirs="${skipdirs} ${cross_only}" ;;
55380b08 280esac
6599da04 281
0c639b89
DD		 282# If both --with-headers and --with-libs are specified, default to
283# --without-newlib.
9082a750
MR		 284if test x"${with_headers}" != x && test x"${with_headers}" != xno \
285 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
0c639b89
DD		 286 if test x"${with_newlib}" = x ; then
287 with_newlib=no
288 fi
289fi
290
291# Recognize --with-newlib/--without-newlib.
292case ${with_newlib} in
293 no) skipdirs="${skipdirs} target-newlib" ;;
294 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
295esac
296
85c64bbe
BS		 297AC_ARG_ENABLE(as-accelerator-for,
298[AS_HELP_STRING([--enable-as-accelerator-for=ARG],
299 [build as offload target compiler.
4b4f2e35 300 Specify offload host triple by ARG])])
85c64bbe
BS		 301
302AC_ARG_ENABLE(offload-targets,
303[AS_HELP_STRING([--enable-offload-targets=LIST],
304 [enable offloading to devices from comma-separated LIST of
305 TARGET[=DIR]. Use optional path to find offload target compiler
306 during the build])],
307[
308 if test x"$enable_offload_targets" = x; then
309 AC_MSG_ERROR([no offload targets specified])
310 fi
311], [enable_offload_targets=])
312
fe5bfa67
TB		 313AC_ARG_ENABLE(offload-defaulted,
314[AS_HELP_STRING([--enable-offload-defaulted]
315 [If enabled, configured but not installed offload compilers and
316 libgomp plugins are silently ignored. Useful for distribution
317 compilers where those are in separate optional packages.])],
318[enable_offload_defaulted=$enableval],
319[enable_offload_defaulted=])
320
21539e2e
MK		 321# Handle --enable-gold, --enable-ld.
322# --disable-gold [--enable-ld]
323# Build only ld. Default option.
9580395f
L		 324# --enable-gold [--enable-ld]
325# Build both gold and ld. Install gold as "ld.gold", install ld
326# as "ld.bfd" and "ld".
327# --enable-gold=default [--enable-ld]
21539e2e
MK		 328# Build both gold and ld. Install gold as "ld.gold" and "ld",
329# install ld as "ld.bfd".
330# --enable-gold[=default] --disable-ld
331# Build only gold, which is then installed as both "ld.gold" and "ld".
332# --enable-gold --enable-ld=default
9580395f
L		 333# Build both gold (installed as "ld.gold") and ld (installed as "ld"
334# and ld.bfd).
21539e2e
MK		 335# In other words, ld is default
336# --enable-gold=default --enable-ld=default
337# Error.
338
339default_ld=
5afab7ad 340AC_ARG_ENABLE(gold,
33e39b66
AS		 341[AS_HELP_STRING([[--enable-gold[=ARG]]],
342 [build gold @<:@ARG={default,yes,no}@:>@])],
5afab7ad
ILT		 343ENABLE_GOLD=$enableval,
344ENABLE_GOLD=no)
21539e2e
MK		 345case "${ENABLE_GOLD}" in
346 yes|default)
38e3d868
RM		 347 # Check for ELF target.
348 is_elf=no
349 case "${target}" in
350 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
0e76460f 351 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
8c6d158a 352 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
ead5103c 353 | *-*-solaris2* | *-*-nto* | *-*-nacl* | *-*-haiku*)
38e3d868
RM		 354 case "${target}" in
355 *-*-linux*aout* | *-*-linux*oldld*)
356 ;;
357 *)
358 is_elf=yes
359 ;;
360 esac
361 esac
362
363 if test "$is_elf" = "yes"; then
364 # Check for target supported by gold.
5afab7ad 365 case "${target}" in
7705dfd1 366 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
f09a9dd3 367 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
21539e2e
MK		 368 configdirs="$configdirs gold"
369 if test x${ENABLE_GOLD} = xdefault; then
370 default_ld=gold
371 fi
38e3d868 372 ENABLE_GOLD=yes
5afab7ad
ILT		 373 ;;
374 esac
38e3d868
RM		 375 fi
376 ;;
377 no)
378 ;;
379 *)
380 AC_MSG_ERROR([invalid --enable-gold argument])
381 ;;
21539e2e
MK		 382esac
383
384AC_ARG_ENABLE(ld,
33e39b66
AS		 385[AS_HELP_STRING([[--enable-ld[=ARG]]],
386 [build ld @<:@ARG={default,yes,no}@:>@])],
21539e2e
MK		 387ENABLE_LD=$enableval,
388ENABLE_LD=yes)
389
390case "${ENABLE_LD}" in
391 default)
9580395f 392 if test x${default_ld} != x; then
21539e2e
MK		 393 AC_MSG_ERROR([either gold or ld can be the default ld])
394 fi
395 ;;
396 yes)
397 ;;
398 no)
399 if test x${ENABLE_GOLD} != xyes; then
400 AC_MSG_WARN([neither ld nor gold are enabled])
401 fi
402 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
403 ;;
404 *)
405 AC_MSG_ERROR([invalid --enable-ld argument])
406 ;;
407esac
5afab7ad 408
24552056
VM		 409AC_ARG_ENABLE(gprofng,
410[AS_HELP_STRING([[--enable-gprofng[=ARG]]],
411 [build gprofng @<:@ARG={yes,no}@:>@])],
412enable_gprofng=$enableval,
413enable_gprofng=yes)
414if test "$enable_gprofng" = "yes"; then
415 case "${target}" in
416 x86_64-*-linux* | i?86-*-linux* | aarch64-*-linux*)
417 configdirs="$configdirs gprofng"
418 ;;
419 esac
420fi
421
422
78edb32f
L		 423# PR gas/19109
424# Decide the default method for compressing debug sections.
425# Provide a configure time option to override our default.
426AC_ARG_ENABLE(compressed_debug_sections,
324402a0 427[AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
78edb32f
L		 428 [Enable compressed debug sections for gas, gold or ld by
429 default])],
430[
431 if test x"$enable_compressed_debug_sections" = xyes; then
432 AC_MSG_ERROR([no program with compressed debug sections specified])
433 fi
434], [enable_compressed_debug_sections=])
435
c9884636
ML		 436# Select default compression algorithm.
437AC_ARG_ENABLE(default_compressed_debug_sections_algorithm,
438[AS_HELP_STRING([--enable-default-compressed-debug-sections-algorithm={zlib,zstd}],
439 [Default compression algorithm for --enable-compressed-debug-sections.])],
440[], [default_compressed_debug_sections_algorithm=])
441
6599da04
JM		 442# Configure extra directories which are host specific
443
444case "${host}" in
55380b08 445 *-cygwin*)
4977bab6 446 configdirs="$configdirs libtermcap" ;;
6599da04
JM		 447esac
448
4fab7234
HPN		 449# A target can indicate whether a language isn't supported for some reason.
450# Only spaces may be used in this macro; not newlines or tabs.
451unsupported_languages=
452
6599da04
JM		 453# Remove more programs from consideration, based on the host or
454# target this usually means that a port of the program doesn't
455# exist yet.
456
6599da04 457case "${host}" in
111eeb6e 458 i[[3456789]]86-*-msdosdjgpp*)
c9bdb152 459 noconfigdirs="$noconfigdirs tcl tk itcl"
5d4a5ee6 460 ;;
6599da04
JM		 461esac
462
a49d42e8
LM		 463# Default to --disable-year2038 until we can handle differences between
464# projects that use gnulib (which understands year 2038) and projects that
465# do not (like BFD).
466AC_ARG_ENABLE(year2038,
467AS_HELP_STRING([--enable-year2038],
468 [enable support for timestamps past the year 2038]),
469ENABLE_YEAR2038=$enableval,
470ENABLE_YEAR2038=no)
471enable_year2038=
472if test "${ENABLE_YEAR2038}" = "no" ; then
473 enable_year2038=no
474fi
6de9cd9a 475
87e6d9dc
TB		 476AC_ARG_ENABLE(libquadmath,
477AS_HELP_STRING([--disable-libquadmath],
478 [do not build libquadmath directory]),
479ENABLE_LIBQUADMATH=$enableval,
480ENABLE_LIBQUADMATH=yes)
481if test "${ENABLE_LIBQUADMATH}" = "no" ; then
482 noconfigdirs="$noconfigdirs target-libquadmath"
483fi
484
485
486AC_ARG_ENABLE(libquadmath-support,
487AS_HELP_STRING([--disable-libquadmath-support],
488 [disable libquadmath support for Fortran]),
489ENABLE_LIBQUADMATH_SUPPORT=$enableval,
490ENABLE_LIBQUADMATH_SUPPORT=yes)
491enable_libquadmath_support=
492if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
493 enable_libquadmath_support=no
494fi
495
496
d9cdb878 497AC_ARG_ENABLE(libada,
33e39b66 498[AS_HELP_STRING([--enable-libada], [build libada directory])],
d9cdb878
AC		 499ENABLE_LIBADA=$enableval,
500ENABLE_LIBADA=yes)
501if test "${ENABLE_LIBADA}" != "yes" ; then
5395b47b 502 noconfigdirs="$noconfigdirs gnattools"
d9cdb878
AC		 503fi
504
1eee94d3
GM		 505AC_ARG_ENABLE(libgm2,
506[AS_HELP_STRING([--enable-libgm2], [build libgm2 directory])],
507ENABLE_LIBGM2=$enableval,
508ENABLE_LIBGM2=no)
509if test "${ENABLE_LIBGM2}" != "yes" ; then
510 noconfigdirs="$noconfigdirs gm2tools"
511fi
512
ef0087a7 513AC_ARG_ENABLE(libssp,
33e39b66 514[AS_HELP_STRING([--enable-libssp], [build libssp directory])],
ef0087a7
KH		 515ENABLE_LIBSSP=$enableval,
516ENABLE_LIBSSP=yes)
ef0087a7 517
2588b26e
RM		 518AC_ARG_ENABLE(libstdcxx,
519AS_HELP_STRING([--disable-libstdcxx],
520 [do not build libstdc++-v3 directory]),
521ENABLE_LIBSTDCXX=$enableval,
522ENABLE_LIBSTDCXX=default)
523[if test "${ENABLE_LIBSTDCXX}" = "no" ; then
1007a55c 524 noconfigdirs="$noconfigdirs target-libstdc++-v3"
2588b26e
RM		 525fi]
526
44a7d18d 527# Enable libgomp by default on hosted POSIX systems, and a few others.
27079765 528if test x$enable_libgomp = x ; then
953ff289 529 case "${target}" in
416ac4d4 530 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
953ff289 531 ;;
8c6d158a 532 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
953ff289 533 ;;
b24513a1 534 *-*-solaris2* | *-*-hpux11*)
953ff289 535 ;;
cac90078 536 *-*-darwin* | *-*-aix*)
953ff289 537 ;;
29b1533a 538 nvptx*-*-* | amdgcn*-*-*)
44a7d18d 539 ;;
953ff289
DN		 540 *)
541 noconfigdirs="$noconfigdirs target-libgomp"
542 ;;
543 esac
27079765 544fi
953ff289 545
48310492
RH		 546# Disable libatomic on unsupported systems.
547if test -d ${srcdir}/libatomic; then
548 if test x$enable_libatomic = x; then
549 AC_MSG_CHECKING([for libatomic support])
550 if (srcdir=${srcdir}/libatomic; \
551 . ${srcdir}/configure.tgt; \
552 test -n "$UNSUPPORTED")
553 then
554 AC_MSG_RESULT([no])
555 noconfigdirs="$noconfigdirs target-libatomic"
556 else
557 AC_MSG_RESULT([yes])
558 fi
559 fi
560fi
561
e948157d
RH		 562# Disable libitm on unsupported systems.
563if test -d ${srcdir}/libitm; then
564 if test x$enable_libitm = x; then
565 AC_MSG_CHECKING([for libitm support])
566 if (srcdir=${srcdir}/libitm; \
567 . ${srcdir}/configure.tgt; \
568 test -n "$UNSUPPORTED")
569 then
570 AC_MSG_RESULT([no])
571 noconfigdirs="$noconfigdirs target-libitm"
572 else
573 AC_MSG_RESULT([yes])
574 fi
575 fi
0a35513e
AH		 576fi
577
93bf5390
RH		 578# Disable libsanitizer on unsupported systems.
579if test -d ${srcdir}/libsanitizer; then
580 if test x$enable_libsanitizer = x; then
581 AC_MSG_CHECKING([for libsanitizer support])
582 if (srcdir=${srcdir}/libsanitizer; \
583 . ${srcdir}/configure.tgt; \
584 test -n "$UNSUPPORTED")
585 then
586 AC_MSG_RESULT([no])
587 noconfigdirs="$noconfigdirs target-libsanitizer"
588 else
589 AC_MSG_RESULT([yes])
590 fi
591 fi
592fi
593
2077db1b
CT		 594# Disable libvtv on unsupported systems.
595if test -d ${srcdir}/libvtv; then
596 if test x$enable_libvtv = x; then
597 AC_MSG_CHECKING([for libvtv support])
598 if (srcdir=${srcdir}/libvtv; \
599 . ${srcdir}/configure.tgt; \
1e74b850 600 test "$VTV_SUPPORTED" != "yes")
2077db1b
CT		 601 then
602 AC_MSG_RESULT([no])
603 noconfigdirs="$noconfigdirs target-libvtv"
604 else
605 AC_MSG_RESULT([yes])
606 fi
607 fi
608fi
609
d7a29167
DE		 610# Disable libquadmath for some systems.
611case "${target}" in
e7fae550
DE		 612 avr-*-*)
613 noconfigdirs="$noconfigdirs target-libquadmath"
614 ;;
d7a29167
DE		 615 # libquadmath is unused on AIX and libquadmath build process use of
616 # LD_LIBRARY_PATH can break AIX bootstrap.
617 powerpc-*-aix* | rs6000-*-aix*)
618 noconfigdirs="$noconfigdirs target-libquadmath"
619 ;;
620esac
621
1e9e0e23
JM		 622# Disable libssp for some systems.
623case "${target}" in
624 avr-*-*)
b318fb4b 625 # No hosted I/O support.
1e9e0e23
JM		 626 noconfigdirs="$noconfigdirs target-libssp"
627 ;;
91dfef96
JM		 628 bpf-*-*)
629 noconfigdirs="$noconfigdirs target-libssp"
630 ;;
1e9e0e23
JM		 631 powerpc-*-aix* | rs6000-*-aix*)
632 noconfigdirs="$noconfigdirs target-libssp"
633 ;;
8d2af3a2
DD		 634 pru-*-*)
635 # No hosted I/O support.
636 noconfigdirs="$noconfigdirs target-libssp"
637 ;;
85b8555e
DD		 638 rl78-*-*)
639 # libssp uses a misaligned load to trigger a fault, but the RL78
640 # doesn't fault for those - instead, it gives a build-time error
641 # for explicit misaligned loads.
642 noconfigdirs="$noconfigdirs target-libssp"
643 ;;
0969ec7d
EB		 644 visium-*-*)
645 # No hosted I/O support.
646 noconfigdirs="$noconfigdirs target-libssp"
647 ;;
1e9e0e23
JM		 648esac
649
1e9e0e23 650# Disable libstdc++-v3 for some systems.
67a1cb2a 651# Allow user to override this if they pass --enable-libstdcxx
2588b26e
RM		 652if test "${ENABLE_LIBSTDCXX}" = "default" ; then
653 case "${target}" in
654 *-*-vxworks*)
655 # VxWorks uses the Dinkumware C++ library.
656 noconfigdirs="$noconfigdirs target-libstdc++-v3"
657 ;;
afa3d80e
TS		 658 amdgcn*-*-*)
659 # Not ported/fails to build when using newlib.
660 noconfigdirs="$noconfigdirs target-libstdc++-v3"
661 ;;
2588b26e
RM		 662 arm*-wince-pe*)
663 # the C++ libraries don't build on top of CE's C libraries
664 noconfigdirs="$noconfigdirs target-libstdc++-v3"
665 ;;
666 avr-*-*)
667 noconfigdirs="$noconfigdirs target-libstdc++-v3"
668 ;;
91dfef96
JM		 669 bpf-*-*)
670 noconfigdirs="$noconfigdirs target-libstdc++-v3"
671 ;;
fef939d6
JB		 672 ft32-*-*)
673 noconfigdirs="$noconfigdirs target-libstdc++-v3"
674 ;;
2588b26e
RM		 675 esac
676fi
1e9e0e23 677
91dfef96
JM		 678# Disable C++ on systems where it is known to not work.
679# For testing, you can override this with --enable-languages=c++.
680case ,${enable_languages}, in
681 *,c++,*)
682 ;;
683 *)
684 case "${target}" in
685 bpf-*-*)
686 unsupported_languages="$unsupported_languages c++"
687 ;;
688 esac
689 ;;
690esac
691
692# Disable Objc on systems where it is known to not work.
693# For testing, you can override this with --enable-languages=objc.
694case ,${enable_languages}, in
695 *,objc,*)
696 ;;
697 *)
698 case "${target}" in
699 bpf-*-*)
700 unsupported_languages="$unsupported_languages objc"
701 ;;
702 esac
703 ;;
704esac
705
260eedb9
IB		 706# Disable D on systems where it is known to not work.
707# For testing, you can override this with --enable-languages=d.
708case ,${enable_languages}, in
709 *,d,*)
710 ;;
711 *)
712 case "${target}" in
91dfef96 713 bpf-*-*)
260eedb9
IB		 714 unsupported_languages="$unsupported_languages d"
715 ;;
716 esac
717 ;;
718esac
719
720# Disable libphobos on unsupported systems.
721# For testing, you can override this with --enable-libphobos.
722if test -d ${srcdir}/libphobos; then
723 if test x$enable_libphobos = x; then
724 AC_MSG_CHECKING([for libphobos support])
725 if (srcdir=${srcdir}/libphobos; \
726 . ${srcdir}/configure.tgt; \
7d31d331 727 test "$LIBPHOBOS_SUPPORTED" != "yes")
260eedb9
IB		 728 then
729 AC_MSG_RESULT([no])
730 noconfigdirs="$noconfigdirs target-libphobos"
731 else
732 AC_MSG_RESULT([yes])
733 fi
734 fi
735fi
736
1e9e0e23
JM		 737# Disable Fortran for some systems.
738case "${target}" in
739 mmix-*-*)
740 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
741 unsupported_languages="$unsupported_languages fortran"
742 ;;
91dfef96
JM		 743 bpf-*-*)
744 unsupported_languages="$unsupported_languages fortran"
745 ;;
1e9e0e23
JM		 746esac
747
012447ea
JJ		 748# Disable libffi for some systems.
749case "${target}" in
750 powerpc-*-darwin*)
751 ;;
752 i[[3456789]]86-*-darwin*)
753 ;;
754 x86_64-*-darwin[[912]]*)
755 ;;
756 *-*-darwin*)
757 noconfigdirs="$noconfigdirs target-libffi"
758 ;;
759 *-*-netware*)
760 noconfigdirs="$noconfigdirs target-libffi"
761 ;;
762 *-*-phoenix*)
763 noconfigdirs="$noconfigdirs target-libffi"
764 ;;
765 *-*-rtems*)
766 noconfigdirs="$noconfigdirs target-libffi"
767 ;;
768 *-*-tpf*)
769 noconfigdirs="$noconfigdirs target-libffi"
770 ;;
771 *-*-uclinux*)
772 noconfigdirs="$noconfigdirs target-libffi"
773 ;;
774 *-*-vxworks*)
775 noconfigdirs="$noconfigdirs target-libffi"
776 ;;
b20e7532
AT		 777 aarch64*-*-freebsd*)
778 noconfigdirs="$noconfigdirs target-libffi"
779 ;;
012447ea
JJ		 780 alpha*-*-*vms*)
781 noconfigdirs="$noconfigdirs target-libffi"
782 ;;
783 arm*-*-freebsd*)
784 noconfigdirs="$noconfigdirs target-libffi"
785 ;;
786 arm-wince-pe)
787 noconfigdirs="$noconfigdirs target-libffi"
788 ;;
789 arm*-*-symbianelf*)
790 noconfigdirs="$noconfigdirs target-libffi"
791 ;;
91dfef96
JM		 792 bpf-*-*)
793 noconfigdirs="$noconfigdirs target-libffi"
794 ;;
012447ea
JJ		 795 cris-*-* | crisv32-*-*)
796 case "${target}" in
797 *-*-linux*)
798 ;;
799 *) # See PR46792 regarding target-libffi.
800 noconfigdirs="$noconfigdirs target-libffi";;
801 esac
802 ;;
803 hppa*64*-*-hpux*)
804 noconfigdirs="$noconfigdirs target-libffi"
805 ;;
b48e9940
AA		 806 hppa*-hp-hpux11*)
807 ;;
808 hppa*-*-hpux*)
809 noconfigdirs="$noconfigdirs target-libffi"
810 ;;
012447ea
JJ		 811 ia64*-*-*vms*)
812 noconfigdirs="$noconfigdirs target-libffi"
813 ;;
814 i[[3456789]]86-w64-mingw*)
815 noconfigdirs="$noconfigdirs target-libffi"
816 ;;
817 i[[3456789]]86-*-mingw*)
818 noconfigdirs="$noconfigdirs target-libffi"
819 ;;
820 x86_64-*-mingw*)
821 noconfigdirs="$noconfigdirs target-libffi"
822 ;;
823 mmix-*-*)
824 noconfigdirs="$noconfigdirs target-libffi"
825 ;;
826 powerpc-*-aix*)
012447ea
JJ		 827 ;;
828 rs6000-*-aix*)
012447ea
JJ		 829 ;;
830 ft32-*-*)
831 noconfigdirs="$noconfigdirs target-libffi"
832 ;;
833 *-*-lynxos*)
834 noconfigdirs="$noconfigdirs target-libffi"
835 ;;
836esac
837
838# Disable the go frontend on systems where it is known to not work. Please keep
839# this in sync with contrib/config-list.mk.
840case "${target}" in
91dfef96 841*-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
012447ea
JJ		 842 unsupported_languages="$unsupported_languages go"
843 ;;
844esac
845
f9d09df0
TT		 846# Only allow gdbserver on some systems.
847if test -d ${srcdir}/gdbserver; then
848 if test x$enable_gdbserver = x; then
849 AC_MSG_CHECKING([for gdbserver support])
850 if (srcdir=${srcdir}/gdbserver; \
851 . ${srcdir}/configure.srv; \
852 test -n "$UNSUPPORTED")
853 then
854 AC_MSG_RESULT([no])
855 noconfigdirs="$noconfigdirs gdbserver"
856 else
857 AC_MSG_RESULT([yes])
858 fi
859 fi
860fi
861
cdbc9e92
ILT		 862# Disable libgo for some systems where it is known to not work.
863# For testing, you can easily override this with --enable-libgo.
864if test x$enable_libgo = x; then
865 case "${target}" in
866 *-*-darwin*)
867 # PR 46986
868 noconfigdirs="$noconfigdirs target-libgo"
869 ;;
870 *-*-cygwin* | *-*-mingw*)
871 noconfigdirs="$noconfigdirs target-libgo"
872 ;;
91dfef96
JM		 873 bpf-*-*)
874 noconfigdirs="$noconfigdirs target-libgo"
875 ;;
cdbc9e92
ILT		 876 esac
877fi
878
c03353e2
RIL		 879# Default libgloss CPU subdirectory.
880libgloss_dir="$target_cpu"
6de9cd9a 881
fbcf0dca
JM		 882case "${target}" in
883 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
884 libgloss_dir=wince
885 ;;
4dddfc74
YZ		 886 aarch64*-*-* )
887 libgloss_dir=aarch64
888 ;;
fbcf0dca
JM		 889 arm*-*-*)
890 libgloss_dir=arm
891 ;;
892 cris-*-* | crisv32-*-*)
893 libgloss_dir=cris
894 ;;
895 hppa*-*-*)
896 libgloss_dir=pa
897 ;;
898 i[[3456789]]86-*-*)
899 libgloss_dir=i386
900 ;;
c6c0594e 901 loongarch*-*-*)
902 libgloss_dir=loongarch
903 ;;
fbcf0dca
JM		 904 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
905 libgloss_dir=m68hc11
906 ;;
907 m68*-*-* | fido-*-*)
908 libgloss_dir=m68k
909 ;;
910 mips*-*-*)
911 libgloss_dir=mips
912 ;;
913 powerpc*-*-*)
914 libgloss_dir=rs6000
915 ;;
8d2af3a2
DD		 916 pru-*-*)
917 libgloss_dir=pru
918 ;;
fbcf0dca
JM		 919 sparc*-*-*)
920 libgloss_dir=sparc
921 ;;
922esac
923
6a789d5e 924# Disable newlib and libgloss for various target OSes.
6599da04 925case "${target}" in
6a789d5e
JM		 926 alpha*-dec-osf*)
927 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
928 ;;
929 i[[3456789]]86-*-linux*)
930 # This section makes it possible to build newlib natively on linux.
931 # If we are using a cross compiler then don't configure newlib.
932 if test x${is_cross_compiler} != xno ; then
933 noconfigdirs="$noconfigdirs target-newlib"
934 fi
935 noconfigdirs="$noconfigdirs target-libgloss"
936 # If we are not using a cross compiler, do configure newlib.
937 # Note however, that newlib will only be configured in this situation
938 # if the --with-newlib option has been given, because otherwise
939 # 'target-newlib' will appear in skipdirs.
940 ;;
941 i[[3456789]]86-*-rdos*)
942 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
943 ;;
944 sh*-*-pe|mips*-*-pe|arm-wince-pe)
945 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
946 ;;
947 sparc-*-sunos4*)
948 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
949 ;;
91dfef96
JM		 950 bpf-*-*)
951 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
952 ;;
6a789d5e
JM		 953 *-*-aix*)
954 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
955 ;;
956 *-*-beos*)
957 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
958 ;;
3fa03ff9 959 *-*-chorusos)
0036370f 960 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
3fa03ff9 961 ;;
6a789d5e
JM		 962 *-*-dragonfly*)
963 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
964 ;;
965 *-*-freebsd*)
966 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
967 ;;
968 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
969 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
970 ;;
971 *-*-lynxos*)
972 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
973 ;;
974 *-*-mingw*)
975 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
976 ;;
977 *-*-netbsd*)
978 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
979 ;;
980 *-*-netware*)
981 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
982 ;;
983 *-*-tpf*)
984 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
985 ;;
986 *-*-uclinux*)
987 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
988 ;;
989 *-*-vxworks*)
990 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
991 ;;
992esac
993
994case "${target}" in
995 *-*-chorusos)
996 ;;
3be96231
TG		 997 aarch64-*-darwin*)
998 noconfigdirs="$noconfigdirs ld gas gdb gprof"
999 noconfigdirs="$noconfigdirs sim target-rda"
1000 ;;
7431c1a1
AS		 1001 amdgcn*-*-*)
1002 ;;
3be96231
TG		 1003 arm-*-darwin*)
1004 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1005 noconfigdirs="$noconfigdirs sim target-rda"
1006 ;;
75eeae1a 1007 powerpc-*-darwin*)
e1514c3f 1008 noconfigdirs="$noconfigdirs ld gas gdb gprof"
9c8f9ec2 1009 noconfigdirs="$noconfigdirs sim target-rda"
940cde4d 1010 ;;
354ebf88
RW		 1011 i[[3456789]]86-*-darwin*)
1012 noconfigdirs="$noconfigdirs ld gprof"
1013 noconfigdirs="$noconfigdirs sim target-rda"
1014 ;;
1015 x86_64-*-darwin[[912]]*)
0db3a858
TG		 1016 noconfigdirs="$noconfigdirs ld gas gprof"
1017 noconfigdirs="$noconfigdirs sim target-rda"
1018 ;;
42c1cd8a
AT		 1019 *-*-darwin*)
1020 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1021 noconfigdirs="$noconfigdirs sim target-rda"
42c1cd8a 1022 ;;
8c6d158a 1023 *-*-dragonfly*)
8c6d158a 1024 ;;
c3f84f61 1025 *-*-freebsd*)
88252529 1026 if test "x$with_gmp" = x \
c0d0a722 1027 && ! test -d ${srcdir}/gmp \
6de9cd9a
DN		 1028 && test -f /usr/local/include/gmp.h; then
1029 with_gmp=/usr/local
1030 fi
6de9cd9a 1031 ;;
ef4e7569
US		 1032 *-*-kaos*)
1033 # Remove unsupported stuff on all kaOS configurations.
ef4e7569
US		 1034 noconfigdirs="$noconfigdirs target-libgloss"
1035 ;;
51584787 1036 *-*-netbsd*)
51584787 1037 ;;
61fec9ff 1038 *-*-netware*)
6599da04 1039 ;;
fd6487af
JS		 1040 *-*-phoenix*)
1041 noconfigdirs="$noconfigdirs target-libgloss"
1042 ;;
3fbc0b70 1043 *-*-rtems*)
2909494b 1044 noconfigdirs="$noconfigdirs target-libgloss"
3fbc0b70 1045 ;;
a8ba31f2
EC		 1046 # The tpf target doesn't support gdb yet.
1047 *-*-tpf*)
6a789d5e 1048 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
a8ba31f2 1049 ;;
5785c0ed 1050 *-*-uclinux*)
6a789d5e 1051 noconfigdirs="$noconfigdirs target-rda"
5785c0ed 1052 ;;
6599da04 1053 *-*-vxworks*)
6599da04 1054 ;;
b104e095 1055 alpha*-dec-osf*)
603606e7 1056 # ld works, but does not support shared libraries.
6599da04 1057 # gas doesn't generate exception information.
6a789d5e 1058 noconfigdirs="$noconfigdirs gas ld"
6599da04
JM		 1059 ;;
1060 alpha*-*-*vms*)
2909494b 1061 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
6599da04
JM		 1062 ;;
1063 alpha*-*-*)
1064 # newlib is not 64 bit ready
2909494b 1065 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1066 ;;
91dfef96
JM		 1067 bpf-*-*)
1068 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1069 ;;
3a685f6f 1070 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
b4f96efe 1071 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
3a685f6f 1072 ;;
2fd88f4f
AK		 1073 arc*-*-*)
1074 noconfigdirs="$noconfigdirs sim"
1075 ;;
6599da04 1076 arm-*-pe*)
2909494b 1077 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1078 ;;
5d4a5ee6 1079 arm-*-riscix*)
0036370f 1080 noconfigdirs="$noconfigdirs ld target-libgloss"
5d4a5ee6 1081 ;;
b588ae30
GJL		 1082 avr-*-*)
1083 if test x${with_avrlibc} != xno; then
1084 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1085 fi
1086 ;;
a5a438f5 1087 c4x-*-* | tic4x-*-*)
0036370f 1088 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1089 ;;
0036370f
JM		 1090 tic54x-*-*)
1091 noconfigdirs="$noconfigdirs target-libgloss gdb"
ab50d72b 1092 ;;
6599da04 1093 d10v-*-*)
0036370f 1094 noconfigdirs="$noconfigdirs target-libgloss"
d207ebef
JM		 1095 ;;
1096 d30v-*-*)
0036370f 1097 noconfigdirs="$noconfigdirs gdb"
6599da04 1098 ;;
09b5f8bf 1099 fr30-*-elf*)
2909494b 1100 noconfigdirs="$noconfigdirs gdb"
09b5f8bf 1101 ;;
a05c2c75
L		 1102 ft32-*-*)
1103 noconfigdirs="$noconfigdirs target-rda gprof"
1104 ;;
55f2d967 1105 moxie-*-*)
a05c2c75 1106 noconfigdirs="$noconfigdirs"
55f2d967 1107 ;;
ab50d72b 1108 h8300*-*-*)
2909494b 1109 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1110 ;;
6599da04 1111 h8500-*-*)
0036370f 1112 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1113 ;;
b48e9940
AA		 1114 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1115 ;;
a05c2c75
L		 1116 hppa*64*-*-hpux*)
1117 noconfigdirs="$noconfigdirs gdb"
1118 ;;
b48e9940
AA		 1119 hppa*-*-hpux11*)
1120 noconfigdirs="$noconfigdirs gdb ld"
1121 ;;
4569f85e 1122 hppa*64*-*-linux*)
cdbff0ab 1123 ;;
56f8587a 1124 hppa*-*-linux*)
3e732ba0 1125 ;;
6599da04 1126 hppa*-*-*elf* | \
bae29210 1127 hppa*-*-lites* | \
66350331 1128 hppa*-*-openbsd* | \
bae29210 1129 hppa*64*-*-*)
6599da04 1130 ;;
c03353e2 1131 hppa*-*-pro*)
c03353e2 1132 ;;
6599da04 1133 hppa*-*-*)
2909494b 1134 noconfigdirs="$noconfigdirs ld"
d207ebef 1135 ;;
fb87ad5d 1136 i960-*-*)
0036370f 1137 noconfigdirs="$noconfigdirs gdb"
fb87ad5d 1138 ;;
d207ebef
JM		 1139 ia64*-*-elf*)
1140 # No gdb support yet.
1bcce263 1141 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
d207ebef 1142 ;;
ab50d72b 1143 ia64*-**-hpux*)
5a2931d1 1144 # No ld support yet.
a05c2c75 1145 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
ab50d72b 1146 ;;
52535a64 1147 ia64*-*-*vms*)
091fe9ca
TG		 1148 # No ld support yet.
1149 noconfigdirs="$noconfigdirs libgui itcl ld"
52535a64 1150 ;;
ef4c4300 1151 i[[3456789]]86-w64-mingw*)
ef4c4300
KT		 1152 ;;
1153 i[[3456789]]86-*-mingw*)
b91f0a41 1154 target_configdirs="$target_configdirs target-winsup"
5d571eaa 1155 ;;
d207ebef
JM		 1156 *-*-cygwin*)
1157 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1bcce263 1158 noconfigdirs="$noconfigdirs target-libgloss"
801e2270 1159 # always build newlib if winsup directory is present.
b91f0a41 1160 if test -d "$srcdir/winsup/cygwin"; then
801e2270 1161 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
c8e6cd41 1162 elif test -d "$srcdir/newlib"; then
b91f0a41 1163 echo "Warning: winsup/cygwin is missing so newlib can't be built."
801e2270 1164 fi
5d571eaa 1165 ;;
f2a0e225 1166 i[[3456789]]86-*-pe)
ebb9f8b0 1167 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1168 ;;
f2a0e225 1169 i[[3456789]]86-*-sco3.2v5*)
6599da04
JM		 1170 # The linker does not yet know about weak symbols in COFF,
1171 # and is not configured to handle mixed ELF and COFF.
0036370f 1172 noconfigdirs="$noconfigdirs ld target-libgloss"
6599da04 1173 ;;
f2a0e225 1174 i[[3456789]]86-*-sco*)
0036370f 1175 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1176 ;;
fbdd5d87 1177 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
7c01b2b5 1178 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1179 ;;
f2a0e225 1180 i[[3456789]]86-*-sysv4*)
0036370f 1181 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1182 ;;
f2a0e225 1183 i[[3456789]]86-*-beos*)
6a789d5e 1184 noconfigdirs="$noconfigdirs gdb"
3aa83176 1185 ;;
d1f8db0c 1186 i[[3456789]]86-*-rdos*)
6a789d5e 1187 noconfigdirs="$noconfigdirs gdb"
c03353e2 1188 ;;
d344dce9 1189 mmix-*-*)
2909494b 1190 noconfigdirs="$noconfigdirs gdb"
d344dce9 1191 ;;
ab34901f 1192 mt-*-*)
79dd769c
AH		 1193 noconfigdirs="$noconfigdirs sim"
1194 ;;
58b40a67
FT		 1195 nfp-*-*)
1196 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1197 noconfigdirs="$noconfigdirs $target_libraries"
1198 ;;
e6cbe965
SC		 1199 pdp11-*-*)
1200 noconfigdirs="$noconfigdirs gdb gprof"
1201 ;;
6599da04
JM		 1202 powerpc-*-aix*)
1203 # copied from rs6000-*-* entry
6a789d5e 1204 noconfigdirs="$noconfigdirs gprof"
6599da04 1205 ;;
4569f85e 1206 powerpc*-*-winnt* | powerpc*-*-pe*)
6599da04 1207 target_configdirs="$target_configdirs target-winsup"
0036370f 1208 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
6599da04
JM		 1209 # always build newlib.
1210 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1211 ;;
1212 # This is temporary until we can link against shared libraries
1213 powerpcle-*-solaris*)
0036370f 1214 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
6599da04 1215 ;;
0da3b5a7 1216 powerpc-*-beos*)
6a789d5e 1217 noconfigdirs="$noconfigdirs gdb"
d207ebef 1218 ;;
6599da04 1219 rs6000-*-lynxos*)
6a789d5e 1220 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1221 ;;
1222 rs6000-*-aix*)
6a789d5e 1223 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1224 ;;
1225 rs6000-*-*)
2909494b 1226 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1227 ;;
1228 m68k-apollo-*)
0036370f 1229 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
6599da04 1230 ;;
ca9fe997 1231 microblaze*)
2909494b 1232 noconfigdirs="$noconfigdirs gprof"
ca9fe997 1233 ;;
74ae587e 1234 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
d9dced13
RS		 1235 if test x$with_newlib = xyes; then
1236 noconfigdirs="$noconfigdirs gprof"
1237 fi
d9dced13 1238 ;;
6599da04 1239 mips*-*-irix5*)
0036370f 1240 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04
JM		 1241 ;;
1242 mips*-*-irix6*)
2909494b 1243 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1244 ;;
6599da04 1245 mips*-*-bsd*)
bc98bcc4 1246 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
6599da04 1247 ;;
9bec4bf0 1248 mips*-*-linux*)
9bec4bf0 1249 ;;
bc98bcc4
JBG		 1250 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1251 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1252 noconfigdirs="$noconfigdirs ld gas gprof"
1253 ;;
6599da04 1254 mips*-*-*)
2909494b 1255 noconfigdirs="$noconfigdirs gprof"
6599da04 1256 ;;
738f2522 1257 nvptx*-*-*)
738f2522
BS		 1258 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1259 ;;
bc6d9014 1260 sh-*-*)
ea2002ba
CB		 1261 case "${target}" in
1262 sh*-*-elf)
2909494b 1263 ;;
ea2002ba 1264 *)
2909494b 1265 noconfigdirs="$noconfigdirs target-libgloss" ;;
ea2002ba 1266 esac
6599da04
JM		 1267 ;;
1268 sparc-*-sunos4*)
6a789d5e 1269 if test x${is_cross_compiler} = xno ; then
6599da04
JM		 1270 use_gnu_ld=no
1271 fi
1272 ;;
b42f0d7e 1273 tic6x-*-*)
0d557ff8 1274 noconfigdirs="$noconfigdirs sim"
b42f0d7e 1275 ;;
a885ec24
AA		 1276 tilepro*-*-* | tilegx*-*-*)
1277 noconfigdirs="$noconfigdirs sim"
1278 ;;
6599da04 1279 v810-*-*)
0036370f 1280 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
6599da04
JM		 1281 ;;
1282 vax-*-*)
2909494b 1283 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1284 ;;
1fc1d82e
MR		 1285 wasm32-*-*)
1286 noconfigdirs="$noconfigdirs ld"
1287 ;;
c6c0594e 1288 loongarch*-*-linux*)
1289 ;;
1290 loongarch*-*-*)
1291 noconfigdirs="$noconfigdirs gprof"
1292 ;;
6599da04
JM		 1293esac
1294
6599da04
JM		 1295# If we aren't building newlib, then don't build libgloss, since libgloss
1296# depends upon some newlib header files.
1297case "${noconfigdirs}" in
1298 *target-libgloss*) ;;
1299 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
55380b08 1300esac
6599da04 1301
55380b08 1302# Work in distributions that contain no compiler tools, like Autoconf.
671aa708 1303host_makefile_frag=/dev/null
55380b08
NN		 1304if test -d ${srcdir}/config ; then
1305case "${host}" in
f2a0e225 1306 i[[3456789]]86-*-msdosdjgpp*)
55380b08
NN		 1307 host_makefile_frag="config/mh-djgpp"
1308 ;;
1309 *-cygwin*)
2a79c47f 1310 ACX_CHECK_CYGWIN_CAT_WORKS
55380b08
NN		 1311 host_makefile_frag="config/mh-cygwin"
1312 ;;
c53a18d3 1313 *-mingw*)
1f5a6b84 1314 host_makefile_frag="config/mh-mingw"
738a52d3 1315 ;;
cabb9d59 1316 alpha*-linux*)
13be44ed
UB		 1317 host_makefile_frag="config/mh-alpha-linux"
1318 ;;
111eeb6e 1319 hppa*-hp-hpux*)
00afcaa0
PB		 1320 host_makefile_frag="config/mh-pa"
1321 ;;
1322 hppa*-*)
1323 host_makefile_frag="config/mh-pa"
1324 ;;
54258e22 1325 i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*)
d8ed14ce 1326 host_makefile_frag="config/mh-darwin"
be8fff81 1327 ;;
d19bca38
PB		 1328 powerpc-*-aix*)
1329 host_makefile_frag="config/mh-ppc-aix"
1330 ;;
1331 rs6000-*-aix*)
1332 host_makefile_frag="config/mh-ppc-aix"
1333 ;;
55380b08
NN		 1334esac
1335fi
1336
e4c9c075 1337if test "${build}" != "${host}" ; then
0999159b
PB		 1338 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1339 AS_FOR_BUILD=${AS_FOR_BUILD-as}
e4c9c075 1340 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
c841dc0a 1341 CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}"
0999159b 1342 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
3b5e8ee4 1343 DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil}
0999159b 1344 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
632e2a07 1345 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
b4c522fa 1346 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
0999159b
PB		 1347 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1348 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1349 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1350 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1351 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1352 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
e4c9c075 1353else
0999159b
PB		 1354 AR_FOR_BUILD="\$(AR)"
1355 AS_FOR_BUILD="\$(AS)"
e4c9c075 1356 CC_FOR_BUILD="\$(CC)"
0999159b 1357 CXX_FOR_BUILD="\$(CXX)"
3b5e8ee4 1358 DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)"
0999159b 1359 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
632e2a07 1360 GOC_FOR_BUILD="\$(GOC)"
b4c522fa 1361 GDC_FOR_BUILD="\$(GDC)"
0999159b
PB		 1362 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1363 LD_FOR_BUILD="\$(LD)"
1364 NM_FOR_BUILD="\$(NM)"
1365 RANLIB_FOR_BUILD="\$(RANLIB)"
1366 WINDRES_FOR_BUILD="\$(WINDRES)"
1367 WINDMC_FOR_BUILD="\$(WINDMC)"
c3a86da9 1368fi
e4c9c075 1369
91743432 1370AC_PROG_CC_C99
c3a86da9
DJ		 1371AC_PROG_CXX
1372
1373# We must set the default linker to the linker used by gcc for the correct
1374# operation of libtool. If LD is not defined and we are using gcc, try to
1375# set the LD default to the ld used by gcc.
1376if test -z "$LD"; then
1377 if test "$GCC" = yes; then
1378 case $build in
1379 *-*-mingw*)
1380 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1381 *)
1382 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1383 esac
1384 case $gcc_prog_ld in
1385 # Accept absolute paths.
1386 [[\\/]* | [A-Za-z]:[\\/]*)]
1387 LD="$gcc_prog_ld" ;;
1388 esac
1389 fi
e4c9c075
PB		 1390fi
1391
0b21f5d3
EB		 1392# Check whether -static-libstdc++ -static-libgcc is supported.
1393have_static_libs=no
1394if test "$GCC" = yes; then
1395 saved_LDFLAGS="$LDFLAGS"
1396
1397 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1398 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1399 AC_LANG_PUSH(C++)
22e05272 1400 AC_LINK_IFELSE([AC_LANG_SOURCE([
0d6414b2
EB		 1401#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1402#error -static-libstdc++ not implemented
1403#endif
22e05272 1404int main() {}])],
0b21f5d3
EB		 1405 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1406 [AC_MSG_RESULT([no])])
1407 AC_LANG_POP(C++)
1408
1409 LDFLAGS="$saved_LDFLAGS"
1410fi
1411
e4c9c075 1412ACX_PROG_GNAT
5fee5ec3 1413ACX_PROG_GDC
3e1e73fc 1414ACX_PROG_CARGO
a76494aa 1415ACX_PROG_CMP_IGNORE_INITIAL
e4c9c075 1416
ff3ac0f4
ILT		 1417AC_ARG_ENABLE([bootstrap],
1418[AS_HELP_STRING([--enable-bootstrap],
1419 [enable bootstrapping @<:@yes if native build@:>@])],,
1420enable_bootstrap=default)
1421
1422# Issue errors and warnings for invalid/strange bootstrap combinations.
bf03b9ff
ILT		 1423if test -r $srcdir/gcc/configure; then
1424 have_compiler=yes
1425else
1426 have_compiler=no
1427fi
ff3ac0f4
ILT		 1428
1429case "$have_compiler:$host:$target:$enable_bootstrap" in
1430 *:*:*:no) ;;
1431
1432 # Default behavior. Enable bootstrap if we have a compiler
1433 # and we are in a native configuration.
1434 yes:$build:$build:default)
1435 enable_bootstrap=yes ;;
1436
1437 *:*:*:default)
1438 enable_bootstrap=no ;;
1439
1440 # We have a compiler and we are in a native configuration, bootstrap is ok
1441 yes:$build:$build:yes)
1442 ;;
1443
1444 # Other configurations, but we have a compiler. Assume the user knows
1445 # what he's doing.
1446 yes:*:*:yes)
1447 AC_MSG_WARN([trying to bootstrap a cross compiler])
1448 ;;
1449
1450 # No compiler: if they passed --enable-bootstrap explicitly, fail
1451 no:*:*:yes)
1452 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1453
1454 # Fail if wrong command line
1455 *)
1456 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1457 ;;
1458esac
1459
5329b59a 1460# When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
ffac9597
JM		 1461# C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1462# require C++11 (or higher).
46070488 1463if test "$enable_bootstrap:$GXX" = "yes:yes"; then
5329b59a 1464 CXX="$CXX -std=c++11"
ffac9597
JM		 1465elif test "$have_compiler" = yes; then
1466 AX_CXX_COMPILE_STDCXX(11)
7ffcf5d6
TB		 1467
1468 if test "${build}" != "${host}"; then
1469 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1470 fi
46070488
JM		 1471fi
1472
4a5e71f2
L		 1473AC_ARG_ENABLE([pgo-build],
1474[AS_HELP_STRING([--enable-pgo-build[[=lto]]],
1475 [enable the PGO build])],
1476[enable_pgo_build=$enableval],
1477[enable_pgo_build=no])
1478
1479# Issue errors and warnings for invalid/strange PGO build combinations.
1480case "$have_compiler:$host:$target:$enable_pgo_build" in
1481 *:*:*:no) ;;
1482
1483 # Allow the PGO build only if we aren't building a compiler and
1484 # we are in a native configuration.
1485 no:$build:$build:yes | no:$build:$build:lto) ;;
1486
1487 # Disallow the PGO bootstrap if we are building a compiler.
1488 yes:*:*:yes | yes:*:*:lto)
1489 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
1490
1491 *)
1492 AC_MSG_ERROR([invalid option for --enable-pgo-build])
1493 ;;
1494esac
1495
1496if test "$enable_pgo_build" != "no"; then
1497 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
1498 old_CFLAGS="$CFLAGS"
1499 PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
1500 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
1501 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1502 [PGO_BUILD_GEN_CFLAGS=])
1503 CFLAGS="$old_CFLAGS"
1504 if test -n "$PGO_BUILD_GEN_CFLAGS"; then
1505 AC_MSG_RESULT([yes])
1506 PGO_BUILD_USE_CFLAGS="-fprofile-use"
1507 else
1508 AC_MSG_RESULT([no])
1509 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
1510 fi
1511
1512 if test "$enable_pgo_build" = "lto"; then
1513 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
1514 old_CFLAGS="$CFLAGS"
1515 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
1516 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
1517 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1518 [PGO_BUILD_LTO_CFLAGS=])
1519 CFLAGS="$old_CFLAGS"
1520 if test -n "$PGO_BUILD_LTO_CFLAGS"; then
1521 AC_MSG_RESULT([yes])
1522 else
1523 AC_MSG_RESULT([no])
1524 AC_MSG_WARN([LTO is disabled for the PGO build])
1525 fi
1526 fi
1527fi
1528AC_SUBST(PGO_BUILD_GEN_CFLAGS)
1529AC_SUBST(PGO_BUILD_USE_CFLAGS)
1530AC_SUBST(PGO_BUILD_LTO_CFLAGS)
1531
592c90ff
KG		 1532# Used for setting $lt_cv_objdir
1533_LT_CHECK_OBJDIR
1534
acd26225 1535# Check for GMP, MPFR and MPC
91e0d220
AP		 1536require_gmp=no
1537require_mpc=no
1538if test -d ${srcdir}/gcc ; then
1539 require_gmp=yes
1540 require_mpc=yes
1541fi
1542if test -d ${srcdir}/gdb ; then
5977d14a
CC		 1543 if test "x$enable_gdb" != xno; then
1544 require_gmp=yes
1545 fi
91e0d220
AP		 1546fi
1547
1548gmplibs="-lmpfr -lgmp"
1549if test x"$require_mpc" = "xyes" ; then
1550 gmplibs="-lmpc $gmplibs"
1551fi
6de9cd9a 1552gmpinc=
e69bf64b 1553have_gmp=no
acd26225
KG		 1554
1555# Specify a location for mpc
1556# check for this first so it ends up on the link line before mpfr.
33e39b66
AS		 1557AC_ARG_WITH(mpc,
1558[AS_HELP_STRING([--with-mpc=PATH],
1559 [specify prefix directory for installed MPC package.
1560 Equivalent to --with-mpc-include=PATH/include
1561 plus --with-mpc-lib=PATH/lib])])
1562AC_ARG_WITH(mpc-include,
1563[AS_HELP_STRING([--with-mpc-include=PATH],
1564 [specify directory for installed MPC include files])])
1565AC_ARG_WITH(mpc-lib,
1566[AS_HELP_STRING([--with-mpc-lib=PATH],
1567 [specify directory for the installed MPC library])])
acd26225
KG		 1568
1569if test "x$with_mpc" != x; then
3a5729ea
KG		 1570 gmplibs="-L$with_mpc/lib $gmplibs"
1571 gmpinc="-I$with_mpc/include $gmpinc"
acd26225
KG		 1572fi
1573if test "x$with_mpc_include" != x; then
3a5729ea 1574 gmpinc="-I$with_mpc_include $gmpinc"
acd26225
KG		 1575fi
1576if test "x$with_mpc_lib" != x; then
3a5729ea 1577 gmplibs="-L$with_mpc_lib $gmplibs"
acd26225
KG		 1578fi
1579if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
592c90ff 1580 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
3a5729ea 1581 gmpinc='-I$$s/mpc/src '"$gmpinc"
acd26225
KG		 1582 # Do not test the mpc version. Assume that it is sufficient, since
1583 # it is in the source tree, and the library has not been built yet
1584 # but it would be included on the link line in the version check below
1585 # hence making the test fail.
3a5729ea 1586 have_gmp=yes
acd26225 1587fi
e69bf64b 1588
bebf829d
PB		 1589# Specify a location for mpfr
1590# check for this first so it ends up on the link line before gmp.
33e39b66
AS		 1591AC_ARG_WITH(mpfr,
1592[AS_HELP_STRING([--with-mpfr=PATH],
1593 [specify prefix directory for installed MPFR package.
1594 Equivalent to --with-mpfr-include=PATH/include
1595 plus --with-mpfr-lib=PATH/lib])])
1596AC_ARG_WITH(mpfr-include,
1597[AS_HELP_STRING([--with-mpfr-include=PATH],
1598 [specify directory for installed MPFR include files])])
1599AC_ARG_WITH(mpfr-lib,
1600[AS_HELP_STRING([--with-mpfr-lib=PATH],
1601 [specify directory for the installed MPFR library])])
bebf829d
PB		 1602
1603if test "x$with_mpfr" != x; then
1604 gmplibs="-L$with_mpfr/lib $gmplibs"
3a5729ea 1605 gmpinc="-I$with_mpfr/include $gmpinc"
bebf829d 1606fi
8a877c9c 1607if test "x$with_mpfr_include" != x; then
3a5729ea 1608 gmpinc="-I$with_mpfr_include $gmpinc"
8a877c9c
KG		 1609fi
1610if test "x$with_mpfr_lib" != x; then
1611 gmplibs="-L$with_mpfr_lib $gmplibs"
1612fi
e69bf64b 1613if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
8f3675f8
MR		 1614 # MPFR v3.1.0 moved the sources into a src sub-directory.
1615 if ! test -d ${srcdir}/mpfr/src; then
1616 AC_MSG_ERROR([dnl
1617Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1618 fi
00f35794
BE		 1619 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1620 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1621 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
e69bf64b
PB		 1622 # Do not test the mpfr version. Assume that it is sufficient, since
1623 # it is in the source tree, and the library has not been built yet
1624 # but it would be included on the link line in the version check below
1625 # hence making the test fail.
1626 have_gmp=yes
1627fi
bebf829d 1628
6de9cd9a 1629# Specify a location for gmp
33e39b66
AS		 1630AC_ARG_WITH(gmp,
1631[AS_HELP_STRING([--with-gmp=PATH],
1632 [specify prefix directory for the installed GMP package.
1633 Equivalent to --with-gmp-include=PATH/include
1634 plus --with-gmp-lib=PATH/lib])])
1635AC_ARG_WITH(gmp-include,
1636[AS_HELP_STRING([--with-gmp-include=PATH],
1637 [specify directory for installed GMP include files])])
1638AC_ARG_WITH(gmp-lib,
1639[AS_HELP_STRING([--with-gmp-lib=PATH],
1640 [specify directory for the installed GMP library])])
6de9cd9a 1641
6de9cd9a 1642
bebf829d
PB		 1643if test "x$with_gmp" != x; then
1644 gmplibs="-L$with_gmp/lib $gmplibs"
1645 gmpinc="-I$with_gmp/include $gmpinc"
6de9cd9a 1646fi
8a877c9c
KG		 1647if test "x$with_gmp_include" != x; then
1648 gmpinc="-I$with_gmp_include $gmpinc"
1649fi
1650if test "x$with_gmp_lib" != x; then
1651 gmplibs="-L$with_gmp_lib $gmplibs"
1652fi
e69bf64b 1653if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
592c90ff 1654 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
e69bf64b 1655 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
9183bdcf 1656 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
592c90ff 1657 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
0ff2d841 1658 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
e69bf64b
PB		 1659 # Do not test the gmp version. Assume that it is sufficient, since
1660 # it is in the source tree, and the library has not been built yet
1661 # but it would be included on the link line in the version check below
1662 # hence making the test fail.
1663 have_gmp=yes
1664fi
6de9cd9a 1665
91e0d220 1666if test "x$require_gmp" = xyes && test "x$have_gmp" = xno; then
e69bf64b
PB		 1667 have_gmp=yes
1668 saved_CFLAGS="$CFLAGS"
1669 CFLAGS="$CFLAGS $gmpinc"
362c6d2f
KG		 1670 # Check for the recommended and required versions of GMP.
1671 AC_MSG_CHECKING([for the correct version of gmp.h])
e69bf64b 1672 AC_TRY_COMPILE([#include "gmp.h"],[
362c6d2f
KG		 1673 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1674 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
385c0681 1675 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
e48d66a9 1676 choke me
e69bf64b 1677 #endif
e8fd69bb 1678 ], [AC_TRY_COMPILE([#include <gmp.h>],[
362c6d2f
KG		 1679 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1680 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1681 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1682 choke me
1683 #endif
e8fd69bb 1684 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1685 [AC_MSG_RESULT([no]); have_gmp=no])
e69bf64b 1686
acd26225 1687 # If we have GMP, check the MPFR version.
e69bf64b 1688 if test x"$have_gmp" = xyes; then
362c6d2f
KG		 1689 # Check for the recommended and required versions of MPFR.
1690 AC_MSG_CHECKING([for the correct version of mpfr.h])
acd26225 1691 AC_TRY_COMPILE([#include <gmp.h>
e69bf64b 1692 #include <mpfr.h>],[
8be34204 1693 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
e69bf64b
PB		 1694 choke me
1695 #endif
e8fd69bb 1696 ], [AC_TRY_COMPILE([#include <gmp.h>
acd26225 1697 #include <mpfr.h>],[
8be34204 1698 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
acd26225
KG		 1699 choke me
1700 #endif
e8fd69bb 1701 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
acd26225
KG		 1702 [AC_MSG_RESULT([no]); have_gmp=no])
1703 fi
1704
1705 # Check for the MPC header version.
91e0d220 1706 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes ; then
362c6d2f 1707 # Check for the recommended and required versions of MPC.
acd26225
KG		 1708 AC_MSG_CHECKING([for the correct version of mpc.h])
1709 AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f 1710 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
acd26225
KG		 1711 choke me
1712 #endif
e8fd69bb 1713 ], [AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f
KG		 1714 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1715 choke me
1716 #endif
e8fd69bb 1717 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1718 [AC_MSG_RESULT([no]); have_gmp=no])
acd26225
KG		 1719 fi
1720
1721 # Now check the MPFR library.
1722 if test x"$have_gmp" = xyes; then
1723 saved_LIBS="$LIBS"
1724 LIBS="$LIBS $gmplibs"
91e0d220
AP		 1725 AC_MSG_CHECKING([for the correct version of the gmp/mpfr libraries])
1726 AC_TRY_LINK([#include <mpfr.h>],[
54e433bc
MK		 1727 mpfr_t n;
1728 mpfr_t x;
e69bf64b 1729 int t;
54e433bc
MK		 1730 mpfr_init (n);
1731 mpfr_init (x);
90ca6847
TB		 1732 mpfr_atan2 (n, n, x, MPFR_RNDN);
1733 mpfr_erfc (n, x, MPFR_RNDN);
1734 mpfr_subnormalize (x, t, MPFR_RNDN);
3a5729ea
KG		 1735 mpfr_clear(n);
1736 mpfr_clear(x);
91e0d220
AP		 1737 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1738 LIBS="$saved_LIBS"
1739 fi
1740
1741 # Now check the MPC library
1742 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes; then
1743 saved_LIBS="$LIBS"
1744 LIBS="$LIBS $gmplibs"
1745 AC_MSG_CHECKING([for the correct version of the mpc libraries])
1746 AC_TRY_LINK([#include <mpc.h>],[
1747 mpc_t c;
3a5729ea
KG		 1748 mpc_init2 (c, 53);
1749 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1750 mpc_cosh (c, c, MPC_RNDNN);
1751 mpc_pow (c, c, c, MPC_RNDNN);
1752 mpc_acosh (c, c, MPC_RNDNN);
1753 mpc_clear (c);
acd26225
KG		 1754 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1755 LIBS="$saved_LIBS"
e69bf64b 1756 fi
acd26225 1757
e69bf64b 1758 CFLAGS="$saved_CFLAGS"
6de9cd9a 1759
362c6d2f
KG		 1760# The library versions listed in the error message below should match
1761# the HARD-minimums enforced above.
e69bf64b 1762 if test x$have_gmp != xyes; then
91e0d220
AP		 1763 if test -d ${srcdir}/gcc ; then
1764 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
3a5729ea
KG		 1765Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1766their locations. Source code for these libraries can be found at
1767their respective hosting sites as well as at
aeebd94c 1768https://gcc.gnu.org/pub/gcc/infrastructure/. See also
45ab87d4 1769http://gcc.gnu.org/install/prerequisites.html for additional info. If
3a5729ea
KG		 1770you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1771make sure that you have installed both the libraries and the header
1772files. They may be located in separate packages.])
91e0d220
AP		 1773 else
1774 AC_MSG_ERROR([Building GDB requires GMP 4.2+, and MPFR 3.1.0+.
1775Try the --with-gmp and/or --with-mpfr options to specify
1776their locations. If you obtained GMP and/or MPFR from a vendor
1777distribution package, make sure that you have installed both the libraries
1778and the header files. They may be located in separate packages.])
1779 fi
e69bf64b 1780 fi
70ec446f
KG		 1781fi
1782
acd26225 1783# Flags needed for both GMP, MPFR and/or MPC.
6de9cd9a
DN		 1784AC_SUBST(gmplibs)
1785AC_SUBST(gmpinc)
9e3eba15 1786AC_SUBST(extra_mpfr_configure_flags)
acd26225
KG		 1787AC_SUBST(extra_mpc_gmp_configure_flags)
1788AC_SUBST(extra_mpc_mpfr_configure_flags)
0ff2d841 1789AC_SUBST(extra_isl_gmp_configure_flags)
6de9cd9a 1790
00020c16
ILT		 1791# Libraries to use for stage1 or when not bootstrapping.
1792AC_ARG_WITH(stage1-libs,
33e39b66 1793[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
00020c16
ILT		 1794[if test "$withval" = "no" -o "$withval" = "yes"; then
1795 stage1_libs=
1796 else
1797 stage1_libs=$withval
1798 fi],
5dc85f7e 1799[stage1_libs=])
00020c16
ILT		 1800AC_SUBST(stage1_libs)
1801
aac9103b
TT		 1802# Whether or not to use -static-libstdc++ and -static-libgcc. The
1803# default is yes if gcc is being built; no otherwise. The reason for
1804# this default is that gdb is sometimes linked against GNU Source
1805# Highlight, which is a shared library that uses C++ exceptions. In
1806# this case, -static-libstdc++ will cause crashes.
1807AC_ARG_WITH(static-standard-libraries,
1808[AS_HELP_STRING([--with-static-standard-libraries],
1809 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1810[], [with_static_standard_libraries=auto])
1811if test "$with_static_standard_libraries" = auto; then
1812 with_static_standard_libraries=$have_compiler
1813fi
1814
0b21f5d3
EB		 1815# Linker flags to use for stage1 or when not bootstrapping.
1816AC_ARG_WITH(stage1-ldflags,
1817[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1818[if test "$withval" = "no" -o "$withval" = "yes"; then
1819 stage1_ldflags=
1820 else
1821 stage1_ldflags=$withval
1822 fi],
1823[stage1_ldflags=
1824 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1825 # if supported. But if the user explicitly specified the libraries to use,
1826 # trust that they are doing what they want.
aac9103b
TT		 1827 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1828 -a "$have_static_libs" = yes; then
0b21f5d3
EB		 1829 stage1_ldflags="-static-libstdc++ -static-libgcc"
1830 fi])
1831AC_SUBST(stage1_ldflags)
1832
5dc85f7e 1833# Libraries to use for stage2 and later builds.
00020c16 1834AC_ARG_WITH(boot-libs,
33e39b66 1835[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
00020c16
ILT		 1836[if test "$withval" = "no" -o "$withval" = "yes"; then
1837 poststage1_libs=
1838 else
e90e6bd7 1839 poststage1_libs=$withval
00020c16 1840 fi],
5dc85f7e 1841[poststage1_libs=])
00020c16
ILT		 1842AC_SUBST(poststage1_libs)
1843
ed2eaa9f
ILT		 1844# Linker flags to use for stage2 and later builds.
1845AC_ARG_WITH(boot-ldflags,
33e39b66
AS		 1846[AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1847 [linker flags for stage2 and later])],
ed2eaa9f
ILT		 1848[if test "$withval" = "no" -o "$withval" = "yes"; then
1849 poststage1_ldflags=
1850 else
1851 poststage1_ldflags=$withval
1852 fi],
1853[poststage1_ldflags=
bec93d73
ILT		 1854 # In stages 2 and 3, default to linking libstdc++ and libgcc
1855 # statically. But if the user explicitly specified the libraries to
1856 # use, trust that they are doing what they want.
1857 if test "$poststage1_libs" = ""; then
ed2eaa9f
ILT		 1858 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1859 fi])
6a6d3817
IS		 1860case $target in
1861 *-darwin2* | *-darwin1[[56789]]*)
1862 # For these versions, we default to using embedded rpaths.
1863 if test "x$enable_darwin_at_rpath" != "xno"; then
1864 poststage1_ldflags="$poststage1_ldflags -nodefaultrpaths"
1865 fi
1866 ;;
1867 *-darwin*)
1868 # For these versions, we only use embedded rpaths on demand.
1869 if test "x$enable_darwin_at_rpath" = "xyes"; then
1870 poststage1_ldflags="$poststage1_ldflags -nodefaultrpaths"
1871 fi
1872 ;;
1873esac
ed2eaa9f
ILT		 1874AC_SUBST(poststage1_ldflags)
1875
e357a5e0 1876# GCC GRAPHITE dependency isl.
4a9bb2aa 1877# Basic setup is inlined here, actual checks are in config/isl.m4
625afa23 1878
625afa23
RG		 1879AC_ARG_WITH(isl,
1880 [AS_HELP_STRING(
1881 [--with-isl=PATH],
e357a5e0 1882 [Specify prefix directory for the installed isl package.
625afa23
RG		 1883 Equivalent to --with-isl-include=PATH/include
1884 plus --with-isl-lib=PATH/lib])])
1885
eae1a5d4 1886# Treat --without-isl as a request to disable
625afa23 1887# GRAPHITE support and skip all following checks.
eae1a5d4 1888if test "x$with_isl" != "xno"; then
e357a5e0 1889 # Check for isl
625afa23
RG		 1890 dnl Provide configure switches and initialize islinc & isllibs
1891 dnl with user input.
1892 ISL_INIT_FLAGS
e357a5e0 1893 dnl The versions of isl that work for Graphite
e0c0c325 1894 ISL_CHECK_VERSION()
e357a5e0 1895 dnl Only execute fail-action, if isl has been requested.
33ad93b9 1896 ISL_IF_FAILED([
e357a5e0 1897 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
f8bf9252 1898fi
f8bf9252 1899
e357a5e0 1900# If the isl check failed, disable builds of in-tree variant of isl
625afa23 1901if test "x$with_isl" = xno ||
625afa23 1902 test "x$gcc_cv_isl" = xno; then
4a9bb2aa 1903 noconfigdirs="$noconfigdirs isl"
625afa23 1904 islinc=
eae1a5d4
RG		 1905fi
1906
1907AC_SUBST(isllibs)
625afa23 1908AC_SUBST(islinc)
625afa23 1909
d7f09764
DN		 1910# Check for LTO support.
1911AC_ARG_ENABLE(lto,
33e39b66 1912[AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
d7f09764
DN		 1913enable_lto=$enableval,
1914enable_lto=yes; default_enable_lto=yes)
1915
48215350
DK		 1916ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1917 build_lto_plugin=yes
1918],[if test x"$default_enable_lto" = x"yes" ; then
bb79486c 1919 case $target in
deeba76a 1920 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
48215350 1921 # On other non-ELF platforms, LTO has yet to be validated.
bb79486c
JH		 1922 *) enable_lto=no ;;
1923 esac
3bec79c5 1924 else
db50fe7d
IS		 1925 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1926 # It would also be nice to check the binutils support, but we don't
3bec79c5
DK		 1927 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1928 # warn during gcc/ subconfigure; unless you're bootstrapping with
1929 # -flto it won't be needed until after installation anyway.
1930 case $target in
9e530bcd 1931 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
3bec79c5
DK		 1932 *) if test x"$enable_lto" = x"yes"; then
1933 AC_MSG_ERROR([LTO support is not enabled for this target.])
1934 fi
1935 ;;
1936 esac
1937 fi
1cd0b716 1938 # Among non-ELF, only Windows platforms support the lto-plugin so far.
48215350 1939 # Build it unless LTO was explicitly disabled.
1cd0b716 1940 case $target in
48215350 1941 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1cd0b716
DK		 1942 *) ;;
1943 esac
48215350 1944])
d7f09764 1945
45b3824d
TS		 1946AC_ARG_ENABLE(linker-plugin-configure-flags,
1947 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1948 [additional flags for configuring linker plugins @<:@none@:>@])],
1949 extra_linker_plugin_configure_flags=$enableval,
1950 extra_linker_plugin_configure_flags=)
1951AC_SUBST(extra_linker_plugin_configure_flags)
1952AC_ARG_ENABLE(linker-plugin-flags,
1953 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1954 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1955 extra_linker_plugin_flags=$enableval,
1956 extra_linker_plugin_flags=)
1957AC_SUBST(extra_linker_plugin_flags)
1958
c1fecabe
IS		 1959# Handle --enable-host-pie
1960# If host PIE executables are the default (or must be forced on) for some host,
1961# we must pass that configuration to the gcc directory.
1962gcc_host_pie=
b6cb10af
MP		 1963AC_ARG_ENABLE(host-pie,
1964[AS_HELP_STRING([--enable-host-pie],
1965 [build position independent host executables])],
1966[host_pie=$enableval
1967 case $host in
c1fecabe 1968 *-*-darwin2*)
b6cb10af 1969 if test x$host_pie != xyes ; then
c1fecabe
IS		 1970 # for Darwin20+ this is required.
1971 AC_MSG_WARN([PIE executables are required for the configured host, host-pie setting ignored.])
b6cb10af 1972 host_pie=yes
c1fecabe 1973 gcc_host_pie=--enable-host-pie
b6cb10af
MP		 1974 fi ;;
1975 *) ;;
1976 esac],
1977[case $host in
c1fecabe
IS		 1978 *-*-darwin2*)
1979 # Default to PIE (mandatory for aarch64).
1980 host_pie=yes
1981 gcc_host_pie=--enable-host-pie
1982 ;;
b6cb10af
MP		 1983 *) host_pie=no ;;
1984 esac])
1985
1986AC_SUBST(host_pie)
c1fecabe 1987AC_SUBST(gcc_host_pie)
b6cb10af 1988
cdfee50a
NS		 1989# Enable --enable-host-shared.
1990# Checked early to determine whether jit is an 'all' language
1991AC_ARG_ENABLE(host-shared,
1992[AS_HELP_STRING([--enable-host-shared],
1993 [build host code as shared libraries])],
a1d2b162 1994[host_shared=$enableval
1edfc8f2 1995 case $host in
a1d2b162
IS		 1996 x86_64-*-darwin* | aarch64-*-darwin*)
1997 if test x$host_shared != xyes ; then
1998 # PIC is the default, and actually cannot be switched off.
c1fecabe 1999 AC_MSG_WARN([PIC code is required for the configured host; host-shared setting ignored.])
a1d2b162
IS		 2000 host_shared=yes
2001 fi ;;
b6cb10af 2002 *-*-darwin*)
c1fecabe
IS		 2003 if test x$host_pie = xyes -a x$host_shared != xyes ; then
2004 AC_MSG_WARN([PIC code is required for PIE host executables host-shared setting ignored.])
b6cb10af
MP		 2005 host_shared=yes
2006 fi ;;
a1d2b162
IS		 2007 *) ;;
2008 esac],
1edfc8f2 2009[case $host in
c1fecabe 2010 # 64B x86_64 and Aarch64 Darwin default to PIC.
a1d2b162 2011 x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
c1fecabe
IS		 2012 # 32B and powerpc64 Darwin must use PIC to link PIE exes.
2013 *-*-darwin*) host_shared=$host_pie ;;
b6cb10af 2014 *) host_shared=no;;
a1d2b162 2015 esac])
05048fc2 2016
cdfee50a 2017AC_SUBST(host_shared)
f8bf9252 2018
b6cb10af 2019if test x$host_shared = xyes; then
c1fecabe
IS		 2020 case $host in
2021 *-*-darwin*)
2022 # Since host shared is the default for 64b Darwin, and also enabled for
2023 # host_pie, ensure that we present the PIE flag when host_pie is active.
2024 if test x$host_pie = xyes; then
2025 PICFLAG=-fPIE
2026 fi
2027 ;;
2028 *)
2029 PICFLAG=-fPIC
2030 ;;
2031 esac
b6cb10af
MP		 2032elif test x$host_pie = xyes; then
2033 PICFLAG=-fPIE
2034else
2035 PICFLAG=
2036fi
2037
2038AC_SUBST(PICFLAG)
2039
05048fc2
IS		 2040# If we are building PIC/PIE host executables, and we are building dependent
2041# libs (e.g. GMP) in-tree those libs need to be configured to generate PIC
2042# code.
2043host_libs_picflag=
b6cb10af 2044if test "$host_shared" = "yes" -o "$host_pie" = "yes"; then
05048fc2
IS		 2045host_libs_picflag='--with-pic'
2046fi
2047AC_SUBST(host_libs_picflag)
2048
0823efed 2049# By default, C and C++ are the only stage 1 languages.
e1888513 2050stage1_languages=,c,
2805b53a 2051
00020c16 2052# Target libraries that we bootstrap.
ad1e5170 2053bootstrap_target_libs=,target-libgcc,
00020c16 2054
e4c9c075
PB		 2055# Figure out what language subdirectories are present.
2056# Look if the user specified --enable-languages="..."; if not, use
2057# the environment variable $LANGUAGES if defined. $LANGUAGES might
2058# go away some day.
2059# NB: embedded tabs in this IF block -- do not untabify
2060if test -d ${srcdir}/gcc; then
2061 if test x"${enable_languages+set}" != xset; then
2062 if test x"${LANGUAGES+set}" = xset; then
2063 enable_languages="${LANGUAGES}"
6b1786aa 2064 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
e4c9c075 2065 else
cdfee50a 2066 enable_languages=default
e4c9c075
PB		 2067 fi
2068 else
2069 if test x"${enable_languages}" = x ||
2070 test x"${enable_languages}" = xyes;
2071 then
6b1786aa 2072 echo configure.ac: --enable-languages needs at least one language argument 1>&2
e4c9c075
PB		 2073 exit 1
2074 fi
2075 fi
2076 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2077
7f26dfa3
FXC		 2078 # 'f95' is the old name for the 'fortran' language. We issue a warning
2079 # and make the substitution.
2080 case ,${enable_languages}, in
2081 *,f95,*)
6b1786aa 2082 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
7f26dfa3
FXC		 2083 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
2084 ;;
2085 esac
2086
0823efed
DN		 2087 # If bootstrapping, C++ must be enabled.
2088 case ",$enable_languages,:$enable_bootstrap" in
2089 *,c++,*:*) ;;
2090 *:yes)
ff3ac0f4
ILT		 2091 if test -f ${srcdir}/gcc/cp/config-lang.in; then
2092 enable_languages="${enable_languages},c++"
2093 else
0823efed 2094 AC_MSG_ERROR([bootstrapping requires c++ sources])
ff3ac0f4
ILT		 2095 fi
2096 ;;
2097 esac
2098
e4c9c075
PB		 2099 # First scan to see if an enabled language requires some other language.
2100 # We assume that a given config-lang.in will list all the language
2101 # front ends it requires, even if some are required indirectly.
2102 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2103 case ${lang_frag} in
2104 ..) ;;
2105 # The odd quoting in the next line works around
2106 # an apparent bug in bash 1.12 on linux.
2107 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2108 *)
69ecd18f
ILT		 2109 # From the config-lang.in, get $language, $lang_requires, and
2110 # $lang_requires_boot_languages.
e4c9c075
PB		 2111 language=
2112 lang_requires=
69ecd18f 2113 lang_requires_boot_languages=
d4360477
NS		 2114 # set srcdir during sourcing lang_frag to the gcc dir.
2115 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
2116 # polutes this shell
2117 saved_srcdir=${srcdir}
2118 srcdir=${srcdir}/gcc . ${lang_frag}
2119 srcdir=${saved_srcdir}
69ecd18f 2120 for other in ${lang_requires} ${lang_requires_boot_languages}; do
e4c9c075
PB		 2121 case ,${enable_languages}, in
2122 *,$other,*) ;;
cdfee50a 2123 *,default,*) ;;
e4c9c075
PB		 2124 *,all,*) ;;
2125 *,$language,*)
2126 echo " \`$other' language required by \`$language'; enabling" 1>&2
2127 enable_languages="${enable_languages},${other}"
2128 ;;
2129 esac
2130 done
69ecd18f
ILT		 2131 for other in ${lang_requires_boot_languages} ; do
2132 if test "$other" != "c"; then
2133 case ,${enable_stage1_languages}, in
2134 *,$other,*) ;;
cdfee50a 2135 *,default,*) ;;
69ecd18f
ILT		 2136 *,all,*) ;;
2137 *)
2138 case ,${enable_languages}, in
2139 *,$language,*)
2140 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
2141 enable_stage1_languages="$enable_stage1_languages,${other}"
2142 ;;
2143 esac
2144 ;;
2145 esac
2146 fi
2147 done
e4c9c075
PB		 2148 ;;
2149 esac
2150 done
2151
e1888513 2152 new_enable_languages=,c,
d7f09764
DN		 2153
2154 # If LTO is enabled, add the LTO front end.
d7f09764 2155 if test "$enable_lto" = "yes" ; then
e4c5bd48
RW		 2156 case ,${enable_languages}, in
2157 *,lto,*) ;;
2158 *) enable_languages="${enable_languages},lto" ;;
2159 esac
1cd0b716 2160 if test "${build_lto_plugin}" = "yes" ; then
d7f09764 2161 configdirs="$configdirs lto-plugin"
d7f09764
DN		 2162 fi
2163 fi
d7f09764 2164
426c1eb0
TS		 2165 # If we're building an offloading compiler, add the LTO front end.
2166 if test x"$enable_as_accelerator_for" != x ; then
2167 case ,${enable_languages}, in
2168 *,lto,*) ;;
2169 *) enable_languages="${enable_languages},lto" ;;
2170 esac
2171 fi
2172
cdfee50a 2173 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
e1888513 2174 potential_languages=,c,
e4c9c075 2175
4da3b0f8
ILT		 2176 enabled_target_libs=
2177 disabled_target_libs=
2178
e4c9c075
PB		 2179 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2180 case ${lang_frag} in
2181 ..) ;;
2182 # The odd quoting in the next line works around
2183 # an apparent bug in bash 1.12 on linux.
2184 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2185 *)
2186 # From the config-lang.in, get $language, $target_libs,
2805b53a 2187 # $lang_dirs, $boot_language, and $build_by_default
e4c9c075
PB		 2188 language=
2189 target_libs=
2190 lang_dirs=
1546bb64 2191 subdir_requires=
e1888513
PB		 2192 boot_language=no
2193 build_by_default=yes
d4360477
NS		 2194 # set srcdir during sourcing. See above about save & restore
2195 saved_srcdir=${srcdir}
2196 srcdir=${srcdir}/gcc . ${lang_frag}
2197 srcdir=${saved_srcdir}
e1888513
PB		 2198 if test x${language} = x; then
2199 echo "${lang_frag} doesn't set \$language." 1>&2
2200 exit 1
2201 fi
2202
78767fd9 2203 if test "$language" = "c++"; then
0823efed 2204 boot_language=yes
00020c16
ILT		 2205 fi
2206
178f875a 2207 add_this_lang=no
cdfee50a
NS		 2208 # C is always enabled, so no need to add it again
2209 if test "$language" != "c"; then
2210 case ,${enable_languages}, in
2211 *,${language},*)
2212 # Language was explicitly selected; include it
d4a10d0a 2213 add_this_lang=yes
cdfee50a
NS		 2214 ;;
2215 *,all,*)
2216 # All languages are enabled
2217 add_this_lang=all
2218 ;;
2219 *,default,*)
2220 # 'default' was selected, select it if it is a default language
178f875a 2221 add_this_lang=${build_by_default}
cdfee50a
NS		 2222 ;;
2223 esac
2224 fi
6de9cd9a 2225
1546bb64 2226 # Disable languages that need other directories if these aren't available.
95695ad3 2227 for i in $subdir_requires; do
b6348cb3 2228 test -f "$srcdir/gcc/$i/config-lang.in" && continue
cdfee50a
NS		 2229 case ${add_this_lang} in
2230 yes)
1546bb64
PB		 2231 # Specifically requested language; tell them.
2232 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2233 ;;
cdfee50a
NS		 2234 all)
2235 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2236 add_this_lang=unsupported
2237 ;;
1546bb64
PB		 2238 *)
2239 # Silently disable.
e1888513 2240 add_this_lang=unsupported
1546bb64
PB		 2241 ;;
2242 esac
2243 done
2244
e1888513 2245 # Disable Ada if no preexisting GNAT is available.
cdfee50a
NS		 2246 case ${add_this_lang}:${language}:${have_gnat} in
2247 yes:ada:no)
e1888513
PB		 2248 # Specifically requested language; tell them.
2249 AC_MSG_ERROR([GNAT is required to build $language])
2250 ;;
cdfee50a
NS		 2251 all:ada:no)
2252 AC_MSG_WARN([GNAT is required to build $language])
2253 add_this_lang=unsupported
2254 ;;
e1888513
PB		 2255 *:ada:no)
2256 # Silently disable.
2257 add_this_lang=unsupported
2258 ;;
2259 esac
2260
5fee5ec3
IB		 2261 # Disable D if no preexisting GDC is available.
2262 case ${add_this_lang}:${language}:${have_gdc} in
2263 yes:d:no)
2264 # Specifically requested language; tell them.
2265 AC_MSG_ERROR([GDC is required to build $language])
2266 ;;
2267 all:d:no)
2268 AC_MSG_WARN([GDC is required to build $language])
2269 add_this_lang=unsupported
2270 ;;
2271 *:d:no)
2272 # Silently disable.
2273 add_this_lang=unsupported
2274 ;;
2275 esac
2276
cdfee50a 2277 # Disable jit if -enable-host-shared not specified
c83027f3
NB		 2278 # but not if building for Mingw. All code in Windows
2279 # is position independent code (PIC).
2280 case $target in
2281 *mingw*) ;;
2282 *)
2283 case ${add_this_lang}:${language}:${host_shared} in
2284 yes:jit:no)
2285 # PR jit/64780: explicitly specify --enable-host-shared
cdfee50a
NS		 2286 AC_MSG_ERROR([
2287Enabling language "jit" requires --enable-host-shared.
2288
2289--enable-host-shared typically slows the rest of the compiler down by
2290a few %, so you must explicitly enable it.
2291
2292If you want to build both the jit and the regular compiler, it is often
2293best to do this via two separate configure/builds, in separate
2294directories, to avoid imposing the performance cost of
2295--enable-host-shared on the regular compiler.])
c83027f3
NB		 2296 ;;
2297 all:jit:no)
2298 AC_MSG_WARN([--enable-host-shared required to build $language])
2299 add_this_lang=unsupported
2300 ;;
2301 *:jit:no)
2302 # Silently disable.
2303 add_this_lang=unsupported
2304 ;;
2305 esac
2306 ;;
2307 esac
cdfee50a 2308
dc17e754
TS		 2309 # Pre-conditions to consider whether cargo being supported.
2310 if test x"$have_cargo" = xyes \
2311 && test x"$build" != x"$host"; then
2312 # Until <https://github.com/Rust-GCC/gccrs/issues/2898>
2313 # "'cargo' should build for the host system" is resolved:
2314 AC_MSG_WARN([use of cargo not yet supported here in Canadian cross configurations])
2315 have_cargo=no
2316 else
2317 # Assume that cargo-produced object files are compatible with what
2318 # we're going to build here.
2319 :
2320 fi
3e1e73fc
PEP		 2321 # Disable Rust if cargo is unavailable.
2322 case ${add_this_lang}:${language}:${have_cargo} in
2323 yes:rust:no)
2324 # Specifically requested language; tell them.
2325 AC_MSG_ERROR([cargo is required to build $language])
2326 ;;
2327 all:rust:no)
2328 AC_MSG_WARN([cargo is required to build $language])
2329 add_this_lang=unsupported
2330 ;;
2331 *:rust:no)
2332 # Silently disable.
2333 add_this_lang=unsupported
2334 ;;
2335 esac
2336
2337
cdfee50a
NS		 2338 # Disable a language that is unsupported by the target.
2339 case "${add_this_lang}: $unsupported_languages " in
2340 no:*) ;;
2341 unsupported:*) ;;
2342 *:*" $language "*)
2343 AC_MSG_WARN([${language} not supported for this target])
e1888513 2344 add_this_lang=unsupported
4fab7234
HPN		 2345 ;;
2346 esac
2347
6de9cd9a 2348 case $add_this_lang in
e1888513 2349 unsupported)
e4c9c075 2350 # Remove language-dependent dirs.
4da3b0f8
ILT		 2351 disabled_target_libs="$disabled_target_libs $target_libs"
2352 noconfigdirs="$noconfigdirs $lang_dirs"
2805b53a 2353 ;;
e1888513
PB		 2354 no)
2355 # Remove language-dependent dirs; still show language as supported.
4da3b0f8
ILT		 2356 disabled_target_libs="$disabled_target_libs $target_libs"
2357 noconfigdirs="$noconfigdirs $lang_dirs"
e1888513
PB		 2358 potential_languages="${potential_languages}${language},"
2359 ;;
cdfee50a 2360 all|yes)
e1888513
PB		 2361 new_enable_languages="${new_enable_languages}${language},"
2362 potential_languages="${potential_languages}${language},"
2805b53a 2363 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
4da3b0f8 2364 enabled_target_libs="$enabled_target_libs $target_libs"
ab9dcd0c
RW		 2365 case "${boot_language}:,$enable_stage1_languages," in
2366 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
340de83f 2367 # Add to (comma-separated) list of stage 1 languages.
ab9dcd0c
RW		 2368 case ",$stage1_languages," in
2369 *,$language,* | ,yes, | ,all,) ;;
2370 *) stage1_languages="${stage1_languages}${language}," ;;
2371 esac
00020c16 2372 # We need to bootstrap any supporting libraries.
5fee5ec3 2373 bootstrap_target_libs=`echo "${bootstrap_target_libs}${target_libs}," | sed "s/ /,/g"`
2805b53a
NN		 2374 ;;
2375 esac
2376 ;;
e4c9c075
PB		 2377 esac
2378 ;;
2379 esac
2380 done
2381
4da3b0f8
ILT		 2382 # Add target libraries which are only needed for disabled languages
2383 # to noconfigdirs.
2384 if test -n "$disabled_target_libs"; then
2385 for dir in $disabled_target_libs; do
2386 case " $enabled_target_libs " in
2387 *" ${dir} "*) ;;
2388 *) noconfigdirs="$noconfigdirs $dir" ;;
2389 esac
2390 done
2391 fi
2392
e1888513 2393 AC_ARG_ENABLE(stage1-languages,
33e39b66
AS		 2394 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2395 [choose additional languages to build during
2396 stage1. Mostly useful for compiler development])],
e1888513
PB		 2397 [case ,${enable_stage1_languages}, in
2398 ,no,|,,)
2399 # Set it to something that will have no effect in the loop below
2400 enable_stage1_languages=c ;;
2401 ,yes,)
2402 enable_stage1_languages=`echo $new_enable_languages | \
2403 sed -e "s/^,//" -e "s/,$//" ` ;;
2404 *,all,*)
2405 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2406 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2407 esac
2408
2409 # Add "good" languages from enable_stage1_languages to stage1_languages,
2410 # while "bad" languages go in missing_languages. Leave no duplicates.
2411 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2412 case $potential_languages in
2413 *,$i,*)
2414 case $stage1_languages in
2415 *,$i,*) ;;
2416 *) stage1_languages="$stage1_languages$i," ;;
2417 esac ;;
2418 *)
2419 case $missing_languages in
2420 *,$i,*) ;;
2421 *) missing_languages="$missing_languages$i," ;;
2422 esac ;;
2423 esac
2424 done])
2425
2426 # Remove leading/trailing commas that were added for simplicity
2427 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
79b4b7d2 2428 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
e1888513
PB		 2429 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2430 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2431
e4c9c075
PB		 2432 if test "x$missing_languages" != x; then
2433 AC_MSG_ERROR([
0cf085e4 2434The following requested languages could not be built: ${missing_languages}
e1888513 2435Supported languages are: ${potential_languages}])
e4c9c075 2436 fi
e4c9c075
PB		 2437 if test "x$new_enable_languages" != "x$enable_languages"; then
2438 echo The following languages will be built: ${new_enable_languages}
e1888513 2439 enable_languages="$new_enable_languages"
e4c9c075 2440 fi
e1888513
PB		 2441
2442 AC_SUBST(stage1_languages)
b2eaac4a 2443 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
e4c9c075
PB		 2444fi
2445
27079765
AH		 2446# Handle --disable-<component> generically.
2447for dir in $configdirs $build_configdirs $target_configdirs ; do
2448 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
ac9e6043
RW		 2449 varname=`echo $dirname | sed -e s/+/_/g`
2450 if eval test x\${enable_${varname}} "=" xno ; then
27079765
AH		 2451 noconfigdirs="$noconfigdirs $dir"
2452 fi
2453done
2454
43c40f3e
RO		 2455# Check for Boehm's garbage collector
2456AC_ARG_ENABLE(objc-gc,
2457[AS_HELP_STRING([--enable-objc-gc],
2458 [enable use of Boehm's garbage collector with the
114bf3f1
MK		 2459 GNU Objective-C runtime])])
2460AC_ARG_WITH([target-bdw-gc],
2461[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2462 [specify prefix directory for installed bdw-gc package.
2463 Equivalent to --with-target-bdw-gc-include=PATH/include
2464 plus --with-target-bdw-gc-lib=PATH/lib])])
2465AC_ARG_WITH([target-bdw-gc-include],
2466[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2467 [specify directories for installed bdw-gc include files])])
2468AC_ARG_WITH([target-bdw-gc-lib],
2469[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2470 [specify directories for installed bdw-gc library])])
2471
2472case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2473 AC_MSG_CHECKING([for bdw garbage collector])
2474 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
825fba52
MK		 2475 dnl no bdw-gw options, assume default locations
2476 AC_MSG_RESULT([using bdw-gc in default locations])
114bf3f1
MK		 2477 else
2478 dnl bdw-gw options, first error checking, complete checking in libobjc
2479 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2480 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2481 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2482 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2483 else
2484 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2485 fi
2486 fi
43c40f3e
RO		 2487esac
2488
e4cba494 2489# Disable libitm, libsanitizer, libvtv if we're not building C++
99776ebd 2490case ,${enable_languages}, in
1007a55c 2491 *,c++,*)
5e9d6aa4 2492 # Disable libitm, libsanitizer if we're not building libstdc++
1007a55c
JW		 2493 case "${noconfigdirs}" in
2494 *target-libstdc++-v3*)
5e9d6aa4 2495 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
1007a55c
JW		 2496 ;;
2497 *) ;;
2498 esac
2499 ;;
99776ebd 2500 *)
e4cba494 2501 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer target-libvtv"
99776ebd
RH		 2502 ;;
2503esac
7cd0cf9c 2504
725fb359
PEP		 2505case ,${enable_languages}, in
2506 *,rust,*)
2507 case " ${noconfigdirs} " in
2508 *\ target-libstdc++-v3\ *)
2509 # Disable target libgrust if we're not building target libstdc++.
2510 noconfigdirs="$noconfigdirs target-libgrust"
2511 ;;
2512 esac
2513 ;;
2514esac
2515
dc614a83
AB		 2516# If gcc/ is not in the source tree then we'll not be building a
2517# target compiler, assume in that case we don't want to build any
2518# target libraries or tools.
2519#
2520# This was added primarily for the benefit for binutils-gdb who reuse
2521# this configure script, but don't always have target tools available.
2522if test ! -d ${srcdir}/gcc; then
2523 skipdirs="${skipdirs} ${target_configdirs}"
2524fi
2525
9d069a4f
PB		 2526# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2527# $build_configdirs and $target_configdirs.
e4c9c075
PB		 2528# If we have the source for $noconfigdirs entries, add them to $notsupp.
2529
2530notsupp=""
2531for dir in . $skipdirs $noconfigdirs ; do
9d069a4f 2532 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
e4c9c075
PB		 2533 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2534 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2535 if test -r $srcdir/$dirname/configure ; then
2536 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2537 true
2538 else
2539 notsupp="$notsupp $dir"
2540 fi
2541 fi
2542 fi
9d069a4f
PB		 2543 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2544 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2545 if test -r $srcdir/$dirname/configure ; then
2546 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2547 true
2548 else
2549 notsupp="$notsupp $dir"
2550 fi
2551 fi
2552 fi
e4c9c075
PB		 2553 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2554 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2555 if test -r $srcdir/$dirname/configure ; then
2556 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2557 true
2558 else
2559 notsupp="$notsupp $dir"
2560 fi
2561 fi
2562 fi
2563done
2564
e4c9c075
PB		 2565# Quietly strip out all directories which aren't configurable in this tree.
2566# This relies on all configurable subdirectories being autoconfiscated, which
2567# is now the case.
23f6b2f9
PB		 2568build_configdirs_all="$build_configdirs"
2569build_configdirs=
2570for i in ${build_configdirs_all} ; do
2571 j=`echo $i | sed -e s/build-//g`
2572 if test -f ${srcdir}/$j/configure ; then
2573 build_configdirs="${build_configdirs} $i"
2574 fi
2575done
2576
e4c9c075
PB		 2577configdirs_all="$configdirs"
2578configdirs=
2579for i in ${configdirs_all} ; do
2580 if test -f ${srcdir}/$i/configure ; then
2581 configdirs="${configdirs} $i"
2582 fi
2583done
23f6b2f9 2584
e4c9c075
PB		 2585target_configdirs_all="$target_configdirs"
2586target_configdirs=
2587for i in ${target_configdirs_all} ; do
2588 j=`echo $i | sed -e s/target-//g`
2589 if test -f ${srcdir}/$j/configure ; then
2590 target_configdirs="${target_configdirs} $i"
2591 fi
2592done
2593
45b3824d
TS		 2594# libiberty-linker-plugin is special: it doesn't have its own source directory,
2595# so we have to add it after the preceding checks.
2596if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2597then
2598 case " $configdirs " in
2599 *" libiberty "*)
2600 # If we can build libiberty, we can also build libiberty-linker-plugin.
2601 configdirs="$configdirs libiberty-linker-plugin"
2602 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2603 --with-libiberty=../libiberty-linker-plugin";;
2604 *)
2605 AC_MSG_ERROR([libiberty missing]);;
2606 esac
2607fi
2608
fca38047
TS		 2609# Sometimes we have special requirements for the host libiberty.
2610extra_host_libiberty_configure_flags=
2611case " $configdirs " in
15368960 2612 *" lto-plugin "* | *" libcc1 "* | *" gdbserver "*)
fca38047
TS		 2613 # When these are to be built as shared libraries, the same applies to
2614 # libiberty.
2615 extra_host_libiberty_configure_flags=--enable-shared
2616 ;;
04bb15e4
TV		 2617esac
2618AC_SUBST(extra_host_libiberty_configure_flags)
2619
2620# Sometimes we have special requirements for the host zlib.
2621extra_host_zlib_configure_flags=
2622case " $configdirs " in
1c01ebf6
L		 2623 *" bfd "*)
2624 # When bfd is to be built as a shared library, the same applies to
2625 # zlib.
2626 if test "$enable_shared" = "yes"; then
2627 extra_host_zlib_configure_flags=--enable-host-shared
2628 fi
2629 ;;
fca38047 2630esac
1c01ebf6 2631AC_SUBST(extra_host_zlib_configure_flags)
fca38047 2632
e4c9c075
PB		 2633# Produce a warning message for the subdirs we can't configure.
2634# This isn't especially interesting in the Cygnus tree, but in the individual
2635# FSF releases, it's important to let people know when their machine isn't
2636# supported by the one or two programs in a package.
2637
2638if test -n "${notsupp}" && test -z "${norecursion}" ; then
2639 # If $appdirs is non-empty, at least one of those directories must still
2640 # be configured, or we error out. (E.g., if the gas release supports a
2641 # specified target in some subdirs but not the gas subdir, we shouldn't
2642 # pretend that all is well.)
2643 if test -n "$appdirs" ; then
2644 for dir in $appdirs ; do
2645 if test -r $dir/Makefile.in ; then
2646 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2647 appdirs=""
2648 break
2649 fi
23f6b2f9 2650 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
e4c9c075
PB		 2651 appdirs=""
2652 break
2653 fi
2654 fi
2655 done
2656 if test -n "$appdirs" ; then
2657 echo "*** This configuration is not supported by this package." 1>&2
2658 exit 1
2659 fi
2660 fi
2661 # Okay, some application will build, or we don't care to check. Still
2662 # notify of subdirs not getting built.
2663 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2664 echo " ${notsupp}" 1>&2
2665 echo " (Any other directories should still work fine.)" 1>&2
2666fi
2667
2668case "$host" in
2669 *msdosdjgpp*)
2670 enable_gdbtk=no ;;
2671esac
2672
c3a86da9
DJ		 2673# To find our prefix, in gcc_cv_tool_prefix.
2674ACX_TOOL_DIRS
2675
e4c9c075
PB		 2676copy_dirs=
2677
526635cb 2678AC_ARG_WITH([build-sysroot],
33e39b66
AS		 2679 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2680 [use sysroot as the system root during the build])],
526635cb
MM		 2681 [if test x"$withval" != x ; then
2682 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2683 fi],
2684 [SYSROOT_CFLAGS_FOR_TARGET=])
2685AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2686
c8aea42c 2687AC_ARG_WITH([debug-prefix-map],
33e39b66
AS		 2688 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2689 [map A to B, C to D ... in debug information])],
c8aea42c
PB		 2690 [if test x"$withval" != x; then
2691 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2692 for debug_map in $withval; do
2693 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2694 done
2695 fi],
2696 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2697AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2698
1c8bd6a3
PB		 2699# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2700# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2701# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2702# We want to ensure that TARGET libraries (which we know are built with
2703# gcc) are built with "-O2 -g", so include those options when setting
2704# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2705if test "x$CFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2706 if test "x${is_cross_compiler}" = xyes; then
2707 CFLAGS_FOR_TARGET="-g -O2"
2708 else
2709 CFLAGS_FOR_TARGET=$CFLAGS
2710 case " $CFLAGS " in
2711 *" -O2 "*) ;;
2712 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2713 esac
2714 case " $CFLAGS " in
2715 *" -g "* | *" -g3 "*) ;;
2716 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2717 esac
2718 fi
1c8bd6a3
PB		 2719fi
2720AC_SUBST(CFLAGS_FOR_TARGET)
2721
2722if test "x$CXXFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2723 if test "x${is_cross_compiler}" = xyes; then
2724 CXXFLAGS_FOR_TARGET="-g -O2"
2725 else
2726 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2727 case " $CXXFLAGS " in
2728 *" -O2 "*) ;;
2729 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2730 esac
2731 case " $CXXFLAGS " in
2732 *" -g "* | *" -g3 "*) ;;
2733 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2734 esac
2735 fi
1c8bd6a3
PB		 2736fi
2737AC_SUBST(CXXFLAGS_FOR_TARGET)
2738
6f57bdf6
DK		 2739AC_SUBST(LDFLAGS_FOR_TARGET)
2740
e4c9c075
PB		 2741# Handle --with-headers=XXX. If the value is not "yes", the contents of
2742# the named directory are copied to $(tooldir)/sys-include.
2743if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2744 if test x${is_cross_compiler} = xno ; then
2745 echo 1>&2 '***' --with-headers is only supported when cross compiling
2746 exit 1
2747 fi
2748 if test x"${with_headers}" != xyes ; then
c3a86da9 2749 x=${gcc_cv_tool_prefix}
1c710c3c 2750 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
e4c9c075
PB		 2751 fi
2752fi
2753
2754# Handle --with-libs=XXX. If the value is not "yes", the contents of
2755# the name directories are copied to $(tooldir)/lib. Multiple directories
2756# are permitted.
2757if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2758 if test x${is_cross_compiler} = xno ; then
2759 echo 1>&2 '***' --with-libs is only supported when cross compiling
2760 exit 1
2761 fi
2762 if test x"${with_libs}" != xyes ; then
2763 # Copy the libraries in reverse order, so that files in the first named
2764 # library override files in subsequent libraries.
c3a86da9 2765 x=${gcc_cv_tool_prefix}
e4c9c075 2766 for l in ${with_libs}; do
1c710c3c 2767 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
e4c9c075
PB		 2768 done
2769 fi
2770fi
2771
d7f09764 2772# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
e8b05380
PB		 2773#
2774# This is done by determining whether or not the appropriate directory
2775# is available, and by checking whether or not specific configurations
2776# have requested that this magic not happen.
2777#
2778# The command line options always override the explicit settings in
6b1786aa 2779# configure.ac, and the settings in configure.ac override this magic.
e8b05380
PB		 2780#
2781# If the default for a toolchain is to use GNU as and ld, and you don't
2782# want to do that, then you should use the --without-gnu-as and
d7f09764
DN		 2783# --without-gnu-ld options for the configure script. Similarly, if
2784# the default is to use the included zlib and you don't want to do that,
2785# you should use the --with-system-zlib option for the configure script.
e8b05380
PB		 2786
2787if test x${use_gnu_as} = x &&
2788 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2789 with_gnu_as=yes
2790 extra_host_args="$extra_host_args --with-gnu-as"
2791fi
2792
2793if test x${use_gnu_ld} = x &&
5afab7ad 2794 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
e8b05380
PB		 2795 with_gnu_ld=yes
2796 extra_host_args="$extra_host_args --with-gnu-ld"
2797fi
2798
d7f09764
DN		 2799if test x${use_included_zlib} = x &&
2800 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2801 :
2802else
2803 with_system_zlib=yes
2804 extra_host_args="$extra_host_args --with-system-zlib"
2805fi
2806
e8b05380
PB		 2807# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2808# can detect this case.
2809
2810if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2811 with_newlib=yes
2812 extra_host_args="$extra_host_args --with-newlib"
2813fi
2814
e4c9c075
PB		 2815# Handle ${copy_dirs}
2816set fnord ${copy_dirs}
2817shift
2818while test $# != 0 ; do
2819 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2820 :
2821 else
2822 echo Copying $1 to $2
2823
2824 # Use the install script to create the directory and all required
2825 # parent directories.
2826 if test -d $2 ; then
2827 :
2828 else
2829 echo >config.temp
2830 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2831 fi
2832
2833 # Copy the directory, assuming we have tar.
2834 # FIXME: Should we use B in the second tar? Not all systems support it.
2835 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2836
2837 # It is the responsibility of the user to correctly adjust all
2838 # symlinks. If somebody can figure out how to handle them correctly
2839 # here, feel free to add the code.
2840
2841 echo $1 > $2/COPIED
2842 fi
2843 shift; shift
2844done
2845
e8b05380
PB		 2846# Determine a target-dependent exec_prefix that the installed
2847# gcc will search in. Keep this list sorted by triplet, with
2848# the *-*-osname triplets last.
2849md_exec_prefix=
2850case "${target}" in
30b74385 2851 i[[34567]]86-pc-msdosdjgpp*)
e8b05380
PB		 2852 md_exec_prefix=/dev/env/DJDIR/bin
2853 ;;
e8b05380 2854 *-*-hpux* | \
e8b05380 2855 *-*-nto-qnx* | \
6de66370 2856 *-*-solaris2*)
e8b05380
PB		 2857 md_exec_prefix=/usr/ccs/bin
2858 ;;
2859esac
2860
4977bab6
ZW		 2861extra_arflags_for_target=
2862extra_nmflags_for_target=
2a726918 2863extra_ranlibflags_for_target=
671aa708 2864target_makefile_frag=/dev/null
55380b08 2865case "${target}" in
58e24147
AM		 2866 spu-*-*)
2867 target_makefile_frag="config/mt-spu"
2868 ;;
227b18f5
YY		 2869 loongarch*-*linux* | loongarch*-*gnu*)
2870 target_makefile_frag="config/mt-loongarch-gnu"
2871 ;;
2872 loongarch*-*elf*)
2873 target_makefile_frag="config/mt-loongarch-elf"
2874 ;;
74ae587e 2875 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
4bf6c438
RS		 2876 target_makefile_frag="config/mt-sde"
2877 ;;
1ec3b87b
RS		 2878 mipsisa*-*-elfoabi*)
2879 target_makefile_frag="config/mt-mips-elfoabi"
2880 ;;
08d0963a
RS		 2881 mips*-*-*linux* | mips*-*-gnu*)
2882 target_makefile_frag="config/mt-mips-gnu"
2883 ;;
707f1839
SL		 2884 nios2-*-elf*)
2885 target_makefile_frag="config/mt-nios2-elf"
2886 ;;
76052545
EB		 2887 *-*-linux-android*)
2888 target_makefile_frag="config/mt-android"
2889 ;;
416ac4d4 2890 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
98a5bb3b 2891 target_makefile_frag="config/mt-gnu"
55380b08 2892 ;;
671aa708 2893 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
4977bab6
ZW		 2894 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2895 # commands to handle both 32-bit and 64-bit objects. These flags are
2896 # harmless if we're using GNU nm or ar.
2897 extra_arflags_for_target=" -X32_64"
2898 extra_nmflags_for_target=" -B -X32_64"
55380b08 2899 ;;
c3b7d169
NN		 2900esac
2901
671aa708 2902alphaieee_frag=/dev/null
c3b7d169
NN		 2903case $target in
2904 alpha*-*-*)
2905 # This just makes sure to use the -mieee option to build target libs.
2906 # This should probably be set individually by each library.
2907 alphaieee_frag="config/mt-alphaieee"
55380b08
NN		 2908 ;;
2909esac
701afd4d 2910
55380b08
NN		 2911# If --enable-target-optspace always use -Os instead of -O2 to build
2912# the target libraries, similarly if it is not specified, use -Os
2913# on selected platforms.
671aa708 2914ospace_frag=/dev/null
55380b08
NN		 2915case "${enable_target_optspace}:${target}" in
2916 yes:*)
c3b7d169 2917 ospace_frag="config/mt-ospace"
55380b08
NN		 2918 ;;
2919 :d30v-*)
c3b7d169 2920 ospace_frag="config/mt-d30v"
55380b08 2921 ;;
d9063947 2922 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
c3b7d169 2923 ospace_frag="config/mt-ospace"
55380b08
NN		 2924 ;;
2925 no:* | :*)
2926 ;;
2927 *)
2928 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2929 ;;
2930esac
6599da04 2931
671aa708
NN		 2932# Some systems (e.g., one of the i386-aix systems the gas testers are
2933# using) don't handle "\$" correctly, so don't use it here.
1c710c3c 2934tooldir='${exec_prefix}'/${target_noncanonical}
671aa708
NN		 2935build_tooldir=${tooldir}
2936
671aa708
NN		 2937# Create a .gdbinit file which runs the one in srcdir
2938# and tells GDB to look there for source files.
2939
2940if test -r ${srcdir}/.gdbinit ; then
2941 case ${srcdir} in
2942 .) ;;
2943 *) cat > ./.gdbinit <<EOF
2944# ${NO_EDIT}
2945dir ${srcdir}
2946dir .
2947source ${srcdir}/.gdbinit
2948EOF
2949 ;;
2950 esac
2951fi
2952
6599da04
JM		 2953# Make sure that the compiler is able to generate an executable. If it
2954# can't, we are probably in trouble. We don't care whether we can run the
2955# executable--we might be using a cross compiler--we only care whether it
2956# can be created. At this point the main configure script has set CC.
aeaa0f2f 2957we_are_ok=no
6599da04
JM		 2958echo "int main () { return 0; }" > conftest.c
2959${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
aeaa0f2f
NN		 2960if test $? = 0 ; then
2961 if test -s conftest || test -s conftest.exe ; then
2962 we_are_ok=yes
2963 fi
2964fi
2965case $we_are_ok in
2966 no)
2967 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2968 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2969 rm -f conftest*
2970 exit 1
2971 ;;
2972esac
6599da04
JM		 2973rm -f conftest*
2974
d89f0ad6 2975# Decide which environment variable is used to find dynamic libraries.
fe3d5b7f
NN		 2976case "${host}" in
2977 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
111eeb6e 2978 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
d89f0ad6 2979 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
fe3d5b7f
NN		 2980 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2981esac
fe3d5b7f 2982
d89f0ad6
AL		 2983# On systems where the dynamic library environment variable is PATH,
2984# gcc/ will put dynamic libraries into a subdirectory to avoid adding
2985# built executables to PATH.
2986if test "$RPATH_ENVVAR" = PATH; then
2987 GCC_SHLIB_SUBDIR=/shlib
2988else
2989 GCC_SHLIB_SUBDIR=
2990fi
2991
beeda1d9
JJ		 2992# Adjust the toplevel makefile according to whether bootstrap was selected.
2993case $enable_bootstrap in
2994 yes)
2995 bootstrap_suffix=bootstrap
2996 BUILD_CONFIG=bootstrap-debug
2997 ;;
2998 no)
2999 bootstrap_suffix=no-bootstrap
3000 BUILD_CONFIG=
3001 ;;
3002esac
3003
3004AC_MSG_CHECKING(for default BUILD_CONFIG)
3005
3006AC_ARG_WITH([build-config],
3007 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
3008 [use config/NAME.mk build configuration])],
3009 [case $with_build_config in
3010 yes) with_build_config= ;;
3011 no) with_build_config= BUILD_CONFIG= ;;
3012 esac])
3013
3014if test "x${with_build_config}" != x; then
3015 BUILD_CONFIG=$with_build_config
3016else
3017 case $BUILD_CONFIG in
3018 bootstrap-debug)
3019 if echo "int f (void) { return 0; }" > conftest.c &&
3020 ${CC} -c conftest.c &&
3021 mv conftest.o conftest.o.g0 &&
3022 ${CC} -c -g conftest.c &&
3023 mv conftest.o conftest.o.g &&
3024 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
3025 :
3026 else
3027 BUILD_CONFIG=
3028 fi
3029 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
3030 ;;
3031 esac
3032fi
3033AC_MSG_RESULT($BUILD_CONFIG)
3034AC_SUBST(BUILD_CONFIG)
3035
3036# Use same top-level configure hooks in libgcc/libstdc++/libvtv.
3037AC_MSG_CHECKING([for --enable-vtable-verify])
3038AC_ARG_ENABLE(vtable-verify,
318a4e6d
MF		 3039[AS_HELP_STRING([--enable-vtable-verify],
3040 [Enable vtable verification feature])],
beeda1d9
JJ		 3041[case "$enableval" in
3042 yes) enable_vtable_verify=yes ;;
3043 no) enable_vtable_verify=no ;;
3044 *) enable_vtable_verify=no;;
3045 esac],
3046[enable_vtable_verify=no])
3047AC_MSG_RESULT($enable_vtable_verify)
3048
4977bab6
ZW		 3049# Record target_configdirs and the configure arguments for target and
3050# build configuration in Makefile.
3051target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
23f6b2f9 3052build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
9e1c8fc1 3053bootstrap_fixincludes=no
4977bab6 3054
ad1e5170
JR		 3055# If we are building libgomp, bootstrap it.
3056if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
3057 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
3058fi
3059
beeda1d9
JJ		 3060# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
3061# or bootstrap-ubsan, bootstrap it.
3062if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
3063 case "$BUILD_CONFIG" in
170e618e 3064 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
beeda1d9 3065 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
9e1c8fc1 3066 bootstrap_fixincludes=yes
beeda1d9
JJ		 3067 ;;
3068 esac
ac8701fe
L		 3069fi
3070
beeda1d9
JJ		 3071# If we are building libvtv and --enable-vtable-verify, bootstrap it.
3072if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
3073 test "$enable_vtable_verify" != no; then
2077db1b
CT		 3074 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
3075fi
3076
5fee5ec3
IB		 3077# If we are building libatomic and the list of enabled languages includes the
3078# D frontend, bootstrap it.
3079if echo " ${target_configdirs} " | grep " libatomic " > /dev/null 2>&1; then
3080 case ,${enable_languages}, in
3081 *,d,*)
3082 bootstrap_target_libs=${bootstrap_target_libs}target-libatomic,
3083 ;;
3084 esac
3085fi
3086
4977bab6
ZW		 3087# Determine whether gdb needs tk/tcl or not.
3088# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
3089# and in that case we want gdb to be built without tk. Ugh!
3090# In fact I believe gdb is the *only* package directly dependent on tk,
3091# so we should be able to put the 'maybe's in unconditionally and
3092# leave out the maybe dependencies when enable_gdbtk is false. I'm not
3093# 100% sure that that's safe though.
e914a571 3094
b4f96efe 3095gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
4977bab6
ZW		 3096case "$enable_gdbtk" in
3097 no)
3098 GDB_TK="" ;;
e914a571
AC		 3099 yes)
3100 GDB_TK="${gdb_tk}" ;;
4977bab6 3101 *)
e914a571
AC		 3102 # Only add the dependency on gdbtk when GDBtk is part of the gdb
3103 # distro. Eventually someone will fix this and move Insight, nee
3104 # gdbtk to a separate directory.
3105 if test -d ${srcdir}/gdb/gdbtk ; then
3106 GDB_TK="${gdb_tk}"
3107 else
3108 GDB_TK=""
3109 fi
3110 ;;
4977bab6 3111esac
ef9db8d5
DJ		 3112CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
3113INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
4977bab6 3114
f9d09df0
TT		 3115# gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
3116# else does, only include them if one of these is built. The Makefile
3117# provides the ordering, so it's enough here to add to the list.
3118case " ${configdirs} " in
3119 *\ gdb\ *)
3120 configdirs="${configdirs} gnulib gdbsupport"
3121 ;;
3122 *\ gdbserver\ *)
3123 configdirs="${configdirs} gnulib gdbsupport"
3124 ;;
f14c9bd4
MF		 3125 *\ sim\ *)
3126 configdirs="${configdirs} gnulib"
3127 ;;
f9d09df0 3128esac
98e5be21 3129
60975492 3130# Strip out unwanted targets.
8b87bb96
NN		 3131
3132# While at that, we remove Makefiles if we were started for recursive
3133# configuration, so that the top-level Makefile reconfigures them,
3134# like we used to do when configure itself was recursive.
8b87bb96 3135
3e54529c
RW		 3136# Loop over modules. We used to use the "$extrasub" feature from Autoconf
3137# but now we're fixing up the Makefile ourselves with the additional
3138# commands passed to AC_CONFIG_FILES. Use separate variables
3139# extrasub-{build,host,target} not because there is any reason to split
3140# the substitutions up that way, but only to remain below the limit of
3141# 99 commands in a script, for HP-UX sed.
da34ca3f
AO		 3142
3143# Do not nest @if/@endif or @unless/@endunless pairs, because
3144# configure will not warn you at all.
8b87bb96 3145
79cd2b23
RW		 3146case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
3147 yes:yes:*\ gold\ *:*,c++,*) ;;
3148 yes:yes:*\ gold\ *:*)
3149 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
3150 ;;
3151esac
3152
3e54529c 3153extrasub_build=
23f6b2f9 3154for module in ${build_configdirs} ; do
8b87bb96
NN		 3155 if test -z "${no_recursion}" \
3156 && test -f ${build_subdir}/${module}/Makefile; then
3157 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
3158 rm -f ${build_subdir}/${module}/Makefile
3159 fi
3e54529c 3160 extrasub_build="$extrasub_build
60975492 3161/^@if build-$module\$/d
5607edfd 3162/^@endif build-$module\$/d
da34ca3f 3163/^@unless build-$module\$/,/^@endunless build-$module\$/d
5607edfd 3164/^@if build-$module-$bootstrap_suffix\$/d
da34ca3f
AO		 3165/^@endif build-$module-$bootstrap_suffix\$/d
3166/^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
8b87bb96 3167done
3e54529c 3168extrasub_host=
8b87bb96 3169for module in ${configdirs} ; do
a6fbc1e2 3170 if test -z "${no_recursion}"; then
f063a9ed 3171 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
a6fbc1e2
AS		 3172 if test -f ${file}; then
3173 echo 1>&2 "*** removing ${file} to force reconfigure"
3174 rm -f ${file}
3175 fi
3176 done
8b87bb96 3177 fi
9e1c8fc1
JJ		 3178 case ${module},${bootstrap_fixincludes} in
3179 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
3180 *) host_bootstrap_suffix=$bootstrap_suffix ;;
3181 esac
3e54529c 3182 extrasub_host="$extrasub_host
60975492 3183/^@if $module\$/d
5607edfd 3184/^@endif $module\$/d
da34ca3f 3185/^@unless $module\$/,/^@endunless $module\$/d
9e1c8fc1 3186/^@if $module-$host_bootstrap_suffix\$/d
da34ca3f
AO		 3187/^@endif $module-$host_bootstrap_suffix\$/d
3188/^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
8b87bb96 3189done
3e54529c 3190extrasub_target=
8b87bb96
NN		 3191for module in ${target_configdirs} ; do
3192 if test -z "${no_recursion}" \
3193 && test -f ${target_subdir}/${module}/Makefile; then
3194 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
3195 rm -f ${target_subdir}/${module}/Makefile
3196 fi
00020c16
ILT		 3197
3198 # We only bootstrap target libraries listed in bootstrap_target_libs.
3199 case $bootstrap_target_libs in
3200 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
3201 *) target_bootstrap_suffix=no-bootstrap ;;
3202 esac
3203
3e54529c 3204 extrasub_target="$extrasub_target
60975492 3205/^@if target-$module\$/d
5607edfd 3206/^@endif target-$module\$/d
da34ca3f 3207/^@unless target-$module\$/,/^@endunless target-$module\$/d
00020c16 3208/^@if target-$module-$target_bootstrap_suffix\$/d
da34ca3f
AO		 3209/^@endif target-$module-$target_bootstrap_suffix\$/d
3210/^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
4977bab6 3211done
f516a7da 3212
3e54529c
RW		 3213# Do the final fixup along with target modules.
3214extrasub_target="$extrasub_target
da34ca3f
AO		 3215/^@if /,/^@endif /d
3216/^@unless /d
3217/^@endunless /d"
4977bab6 3218
4a5e71f2
L		 3219if test "$enable_pgo_build" != "no"; then
3220 extrasub_build="$extrasub_build
3221/^@if pgo-build\$/d
3222/^@endif pgo-build\$/d"
3223fi
3224
4977bab6
ZW		 3225# Create the serialization dependencies. This uses a temporary file.
3226
ade82b16 3227AC_ARG_ENABLE([serial-configure],
33e39b66
AS		 3228[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
3229 [force sequential configuration of
3230 sub-packages for the host, target or build
3231 machine, or all sub-packages])])
bf1d3e81
NN		 3232
3233case ${enable_serial_configure} in
3234 yes)
3235 enable_serial_build_configure=yes
3236 enable_serial_host_configure=yes
3237 enable_serial_target_configure=yes
3238 ;;
3239esac
ade82b16 3240
4977bab6
ZW		 3241# These force 'configure's to be done one at a time, to avoid problems
3242# with contention over a shared config.cache.
3243rm -f serdep.tmp
7d115e01 3244if test "x${enable_serial_build_configure}" = xyes || test "x${enable_serial_host_configure}" = xyes || test "x${enable_serial_target_configure}" = xyes; then
ade82b16 3245echo '# serdep.tmp' > serdep.tmp
7d115e01 3246fi
4977bab6 3247olditem=
bf1d3e81 3248test "x${enable_serial_build_configure}" = xyes &&
4977bab6
ZW		 3249for item in ${build_configdirs} ; do
3250 case ${olditem} in
3251 "") ;;
ade82b16 3252 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3253 esac
3254 olditem=${item}
3255done
3256olditem=
bf1d3e81 3257test "x${enable_serial_host_configure}" = xyes &&
4977bab6
ZW		 3258for item in ${configdirs} ; do
3259 case ${olditem} in
3260 "") ;;
ade82b16 3261 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3262 esac
3263 olditem=${item}
3264done
3265olditem=
bf1d3e81 3266test "x${enable_serial_target_configure}" = xyes &&
4977bab6
ZW		 3267for item in ${target_configdirs} ; do
3268 case ${olditem} in
3269 "") ;;
ade82b16 3270 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3271 esac
3272 olditem=${item}
3273done
671aa708
NN		 3274serialization_dependencies=serdep.tmp
3275AC_SUBST_FILE(serialization_dependencies)
fe3d5b7f 3276
ade82b16 3277# Base args. Strip norecursion, cache-file, srcdir, host, build,
1c710c3c 3278# target, nonopt, and variable assignments. These are the ones we
f1a036e4
NC		 3279# might not want to pass down to subconfigures. The exception being
3280# --cache-file=/dev/null, which is used to turn off the use of cache
3281# files altogether, and which should be passed on to subconfigures.
3282# Also strip program-prefix, program-suffix, and program-transform-name,
3283# so that we can pass down a consistent program-transform-name.
db50aea6
AA		 3284hbaseargs=
3285bbaseargs=
29a63921 3286tbaseargs=
1c710c3c
DJ		 3287keep_next=no
3288skip_next=no
3289eval "set -- $ac_configure_args"
44bfc3ac
DJ		 3290for ac_arg
3291do
1c710c3c
DJ		 3292 if test X"$skip_next" = X"yes"; then
3293 skip_next=no
3294 continue
3295 fi
3296 if test X"$keep_next" = X"yes"; then
3297 case $ac_arg in
3298 *\'*)
3299 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3300 esac
db50aea6
AA		 3301 hbaseargs="$hbaseargs '$ac_arg'"
3302 bbaseargs="$bbaseargs '$ac_arg'"
29a63921 3303 tbaseargs="$tbaseargs '$ac_arg'"
1c710c3c
DJ		 3304 keep_next=no
3305 continue
3306 fi
3307
3308 # Handle separated arguments. Based on the logic generated by
3309 # autoconf 2.59.
3310 case $ac_arg in
3311 *=* | --config-cache | -C | -disable-* | --disable-* \
3312 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3313 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3314 | -with-* | --with-* | -without-* | --without-* | --x)
3315 separate_arg=no
3316 ;;
3317 -*)
3318 separate_arg=yes
3319 ;;
3320 *)
3321 separate_arg=no
3322 ;;
3323 esac
3324
29a63921 3325 skip_targ=no
db50aea6 3326 skip_barg=no
29a63921
AO		 3327 case $ac_arg in
3328changequote(,)
3329 --with-* | --without-*)
3330 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3331
3332 case $libopt in
3333 *[-_]include)
3334 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3335 ;;
3336 *[-_]lib)
3337 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3338 ;;
db50aea6
AA		 3339 *[-_]prefix)
3340 lib=`echo "$libopt" | sed 's,[-_]prefix$,,'`
3341 ;;
3342 *[-_]type)
3343 lib=`echo "$libopt" | sed 's,[-_]type$,,'`
3344 ;;
29a63921
AO		 3345 *)
3346 lib=$libopt
3347 ;;
3348 esac
3349changequote([,])
3350
3351 case $lib in
4a9bb2aa 3352 mpc | mpfr | gmp | isl)
29a63921
AO		 3353 # If we're processing --with-$lib, --with-$lib-include or
3354 # --with-$lib-lib, for one of the libs above, and target is
3355 # different from host, don't pass the current argument to any
3356 # target library's configure.
3357 if test x$is_cross_compiler = xyes; then
3358 skip_targ=yes
3359 fi
3360 ;;
db50aea6
AA		 3361 libintl | libiconv)
3362 # We don't want libintl (and co.) in anything but the host arguments.
3363 skip_targ=yes
3364 skip_barg=yes
3365 ;;
29a63921
AO		 3366 esac
3367 ;;
3368 esac
3369
1c710c3c 3370 case "$ac_arg" in
f1a036e4
NC		 3371 --cache-file=/dev/null | \
3372 -cache-file=/dev/null )
3373 # Handled here to avoid the test to skip args below.
db50aea6
AA		 3374 hbaseargs="$hbaseargs '$ac_arg'"
3375 bbaseargs="$bbaseargs '$ac_arg'"
29a63921 3376 tbaseargs="$tbaseargs '$ac_arg'"
f1a036e4
NC		 3377 # Assert: $separate_arg should always be no.
3378 keep_next=$separate_arg
3379 ;;
1c710c3c
DJ		 3380 --no*)
3381 continue
3382 ;;
3383 --c* | \
3384 --sr* | \
3385 --ho* | \
3386 --bu* | \
3387 --t* | \
3388 --program-* | \
3389 -cache_file* | \
3390 -srcdir* | \
3391 -host* | \
3392 -build* | \
3393 -target* | \
3394 -program-prefix* | \
3395 -program-suffix* | \
3396 -program-transform-name* )
3397 skip_next=$separate_arg
3398 continue
3399 ;;
3400 -*)
3401 # An option. Add it.
3402 case $ac_arg in
3403 *\'*)
3404 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3405 esac
db50aea6
AA		 3406 hbaseargs="$hbaseargs '$ac_arg'"
3407 if test X"$skip_barg" = Xno; then
3408 bbaseargs="$bbaseargs '$ac_arg'"
3409 fi
29a63921
AO		 3410 if test X"$skip_targ" = Xno; then
3411 tbaseargs="$tbaseargs '$ac_arg'"
3412 fi
1c710c3c
DJ		 3413 keep_next=$separate_arg
3414 ;;
3415 *)
3416 # Either a variable assignment, or a nonopt (triplet). Don't
3417 # pass it down; let the Makefile handle this.
3418 continue
3419 ;;
3420 esac
3421done
3422# Remove the initial space we just introduced and, as these will be
3423# expanded by make, quote '$'.
db50aea6
AA		 3424hbaseargs=`echo "x$hbaseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3425bbaseargs=`echo "x$bbaseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
6599da04 3426
43bb47c2
DJ		 3427# Add in --program-transform-name, after --program-prefix and
3428# --program-suffix have been applied to it. Autoconf has already
3429# doubled dollar signs and backslashes in program_transform_name; we want
3430# the backslashes un-doubled, and then the entire thing wrapped in single
3431# quotes, because this will be expanded first by make and then by the shell.
3432# Also, because we want to override the logic in subdir configure scripts to
3433# choose program_transform_name, replace any s,x,x, with s,y,y,.
3434sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3435${program_transform_name}
3436EOF_SED
3437gcc_transform_name=`cat conftestsed.out`
3438rm -f conftestsed.out
db50aea6
AA		 3439hbaseargs="$hbaseargs --program-transform-name='${gcc_transform_name}'"
3440bbaseargs="$bbaseargs --program-transform-name='${gcc_transform_name}'"
29a63921 3441tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
d9acb717 3442if test "$silent" = yes; then
db50aea6
AA		 3443 bbaseargs="$bbaseargs --silent"
3444 hbaseargs="$hbaseargs --silent"
29a63921 3445 tbaseargs="$tbaseargs --silent"
d9acb717 3446fi
a49d42e8 3447
db50aea6
AA		 3448bbaseargs="$bbaseargs --disable-option-checking"
3449hbaseargs="$hbaseargs --disable-option-checking"
29a63921 3450tbaseargs="$tbaseargs --disable-option-checking"
43bb47c2 3451
a49d42e8
LM		 3452if test "$enable_year2038" = no; then
3453 baseargs="$baseargs --disable-year2038"
3454 tbaseargs="$tbaseargs --disable-year2038"
3455fi
3456
ffedf511
RW		 3457# Record and document user additions to sub configure arguments.
3458AC_ARG_VAR([build_configargs],
3459 [additional configure arguments for build directories])
3460AC_ARG_VAR([host_configargs],
3461 [additional configure arguments for host directories])
3462AC_ARG_VAR([target_configargs],
3463 [additional configure arguments for target directories])
3464
e490616e
ZW		 3465# For the build-side libraries, we just need to pretend we're native,
3466# and not use the same cache file. Multilibs are neither needed nor
3d96b0d0
HPN		 3467# desired. We can't even use the same cache file for all build-side
3468# libraries, as they're compiled differently; some with C, some with
3469# C++ or with different feature-enabling options.
db50aea6 3470build_configargs="$build_configargs --cache-file=./config.cache ${bbaseargs}"
e254d6b5 3471
4977bab6
ZW		 3472# For host modules, accept cache file option, or specification as blank.
3473case "${cache_file}" in
3474"") # empty
3475 cache_file_option="" ;;
671aa708 3476/* | [[A-Za-z]]:[[\\/]]* ) # absolute path
4977bab6
ZW		 3477 cache_file_option="--cache-file=${cache_file}" ;;
3478*) # relative path
3479 cache_file_option="--cache-file=../${cache_file}" ;;
3480esac
3481
09438bde
NN		 3482# Host dirs don't like to share a cache file either, horribly enough.
3483# This seems to be due to autoconf 2.5x stupidity.
db50aea6 3484host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${hbaseargs}"
4977bab6 3485
29a63921 3486target_configargs="$target_configargs ${tbaseargs}"
e490616e 3487
6599da04
JM		 3488# Passing a --with-cross-host argument lets the target libraries know
3489# whether they are being built with a cross-compiler or being built
3490# native. However, it would be better to use other mechanisms to make the
3491# sorts of decisions they want to make on this basis. Please consider
3492# this option to be deprecated. FIXME.
aeaa0f2f 3493if test x${is_cross_compiler} = xyes ; then
1c710c3c 3494 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
6599da04
JM		 3495fi
3496
79e0604d
FXC		 3497# Special user-friendly check for native x86_64-linux build, if
3498# multilib is not explicitly enabled.
3499case "$target:$have_compiler:$host:$target:$enable_multilib" in
3500 x86_64-*linux*:yes:$build:$build:)
e640447c 3501 # Make sure we have a development environment that handles 32-bit
79e0604d
FXC		 3502 dev64=no
3503 echo "int main () { return 0; }" > conftest.c
3504 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3505 if test $? = 0 ; then
3506 if test -s conftest || test -s conftest.exe ; then
3507 dev64=yes
3508 fi
3509 fi
3510 rm -f conftest*
3511 if test x${dev64} != xyes ; then
e640447c 3512 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		 3513 fi
3514 ;;
3515esac
3516
dc683a3f
RW		 3517# Default to --enable-multilib.
3518if test x${enable_multilib} = x ; then
3fedb745 3519 target_configargs="--enable-multilib ${target_configargs}"
dc683a3f 3520fi
6599da04 3521
5d4a5ee6
JL		 3522# Pass --with-newlib if appropriate. Note that target_configdirs has
3523# changed from the earlier setting of with_newlib.
aeaa0f2f 3524if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3fedb745 3525 target_configargs="--with-newlib ${target_configargs}"
5d4a5ee6
JL		 3526fi
3527
6b9eb62c
NN		 3528# Different target subdirs use different values of certain variables
3529# (notably CXX). Worse, multilibs use *lots* of different values.
3530# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3531# it doesn't automatically accept command-line overrides of them.
3532# This means it's not safe for target subdirs to share a cache file,
3533# which is disgusting, but there you have it. Hopefully this can be
3534# fixed in future. It's still worthwhile to use a cache file for each
3535# directory. I think.
3536
bebcd931
MS		 3537# Pass the appropriate --build, --host, --target and --cache-file arguments.
3538# We need to pass --target, as newer autoconf's requires consistency
3539# for target_alias and gcc doesn't manage it consistently.
e69bf64b 3540target_configargs="--cache-file=./config.cache ${target_configargs}"
e490616e 3541
b87487b6 3542FLAGS_FOR_TARGET=
bb654703 3543case " $target_configdirs " in
7965440a 3544 *" newlib "*)
3fedb745 3545 case " $target_configargs " in
7965440a 3546 *" --with-newlib "*)
b87487b6 3547 case "$target" in
5d571eaa 3548 *-cygwin*)
443e6238 3549 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
5d571eaa 3550 ;;
b87487b6
AO		 3551 esac
3552
afd7db25 3553 # If we're not building GCC, don't discard standard headers.
ef40bc65 3554 if test -d ${srcdir}/gcc; then
d4eb109c 3555 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
afd7db25
AO		 3556
3557 if test "${build}" != "${host}"; then
3558 # On Canadian crosses, CC_FOR_TARGET will have already been set
3559 # by `configure', so we won't have an opportunity to add -Bgcc/
3560 # to it. This is right: we don't want to search that directory
3561 # for binaries, but we want the header files in there, so add
3562 # them explicitly.
0463992b 3563 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
afd7db25
AO		 3564
3565 # Someone might think of using the pre-installed headers on
3566 # Canadian crosses, in case the installed compiler is not fully
3567 # compatible with the compiler being built. In this case, it
3568 # would be better to flag an error than risking having
3569 # incompatible object files being constructed. We can't
3570 # guarantee that an error will be flagged, but let's hope the
3571 # compiler will do it, when presented with incompatible header
3572 # files.
3573 fi
d4eb109c
AO		 3574 fi
3575
ab50d72b 3576 case "${target}-${is_cross_compiler}" in
f2a0e225 3577 i[[3456789]]86-*-linux*-no)
ab50d72b
DD		 3578 # Here host == target, so we don't need to build gcc,
3579 # so we don't want to discard standard headers.
3580 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
ab50d72b
DD		 3581 ;;
3582 *)
3583 # If we're building newlib, use its generic headers last, but search
3584 # for any libc-related directories first (so make it the last -B
3585 # switch).
3586 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
c03353e2
RIL		 3587
3588 # If we're building libgloss, find the startup file, simulator library
3589 # and linker script.
3590 case " $target_configdirs " in
3591 *" libgloss "*)
3592 # Look for startup file, simulator library and maybe linker script.
3593 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3594 # Look for libnosys.a in case the target needs it.
3595 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3596 # Most targets have the linker script in the source directory.
3597 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3598 ;;
3599 esac
ab50d72b
DD		 3600 ;;
3601 esac
b87487b6 3602 ;;
7965440a
AO		 3603 esac
3604 ;;
b87487b6 3605esac
5d571eaa 3606
b91f0a41 3607case "$target" in
5d571eaa
OS		 3608 x86_64-*mingw* | *-w64-mingw*)
3609 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3610 # however, use a symlink named 'mingw' in ${prefix} .
3611 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3612 ;;
3613 *-mingw*)
3614 # MinGW can't be handled as Cygwin above since it does not use newlib.
3615 FLAGS_FOR_TARGET=$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'
3616 ;;
b91f0a41 3617esac
d4eb109c 3618
6691a79e
ME		 3619# Allow the user to override the flags for
3620# our build compiler if desired.
f019adc1
MF		 3621if test x"${build}" = x"${host}" ; then
3622 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
84401ce5 3623 CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}}
f019adc1
MF		 3624 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3625 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3626fi
6691a79e 3627
d4eb109c
AO		 3628# On Canadian crosses, we'll be searching the right directories for
3629# the previously-installed cross compiler, so don't bother to add
3630# flags for directories within the install tree of the compiler
3631# being built; programs in there won't even run.
ef40bc65 3632if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
b87487b6 3633 # Search for pre-installed headers if nothing else fits.
9124bc53 3634 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
b87487b6 3635fi
d4eb109c 3636
bb654703 3637if test "x${use_gnu_ld}" = x &&
55380b08 3638 echo " ${configdirs} " | grep " ld " > /dev/null ; then
b87487b6 3639 # Arrange for us to find uninstalled linker scripts.
215c351a 3640 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
b87487b6
AO		 3641fi
3642
e88a2c09
DD		 3643# Search for other target-specific linker scripts and such.
3644case "${target}" in
3e19841a
PB		 3645 mep*)
3646 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3647 ;;
9b8ffbb8
OH		 3648 # The VxWorks support for shared libraries is getting in
3649 # incrementally. Make sure it doesn't get activated implicitly:
3650 *vxworks*)
3651 if test "${enable_shared-unset}" = unset ; then
3652 enable_shared=no
3653 # So the build of libraries knows ...
3654 target_configargs="${target_configargs} --disable-shared"
3655 # So gcc knows ...
3656 host_configargs="${host_configargs} --disable-shared"
3657 fi
3658 ;;
e88a2c09
DD		 3659esac
3660
671aa708 3661# Makefile fragments.
7b61653a
PE		 3662for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3663do
3664 eval fragval=\$$frag
3665 if test $fragval != /dev/null; then
3666 eval $frag=${srcdir}/$fragval
3667 fi
3668done
671aa708
NN		 3669AC_SUBST_FILE(host_makefile_frag)
3670AC_SUBST_FILE(target_makefile_frag)
3671AC_SUBST_FILE(alphaieee_frag)
3672AC_SUBST_FILE(ospace_frag)
3673
3674# Miscellanea: directories, flags, etc.
671aa708 3675AC_SUBST(RPATH_ENVVAR)
d89f0ad6 3676AC_SUBST(GCC_SHLIB_SUBDIR)
671aa708
NN		 3677AC_SUBST(tooldir)
3678AC_SUBST(build_tooldir)
ef9db8d5 3679AC_SUBST(CONFIGURE_GDB_TK)
671aa708 3680AC_SUBST(GDB_TK)
ef9db8d5 3681AC_SUBST(INSTALL_GDB_TK)
671aa708
NN		 3682
3683# Build module lists & subconfigure args.
671aa708 3684AC_SUBST(build_configargs)
23f6b2f9 3685AC_SUBST(build_configdirs)
671aa708
NN		 3686
3687# Host module lists & subconfigure args.
3688AC_SUBST(host_configargs)
3689AC_SUBST(configdirs)
aae29963 3690AC_SUBST(target_configdirs)
671aa708
NN		 3691
3692# Target module lists & subconfigure args.
671aa708 3693AC_SUBST(target_configargs)
ee2312f3 3694
671aa708
NN		 3695
3696# Build tools.
0999159b
PB		 3697AC_SUBST(AR_FOR_BUILD)
3698AC_SUBST(AS_FOR_BUILD)
671aa708 3699AC_SUBST(CC_FOR_BUILD)
0999159b 3700AC_SUBST(CFLAGS_FOR_BUILD)
84401ce5
RP		 3701AC_SUBST(CPP_FOR_BUILD)
3702AC_SUBST(CPPFLAGS_FOR_BUILD)
0999159b
PB		 3703AC_SUBST(CXXFLAGS_FOR_BUILD)
3704AC_SUBST(CXX_FOR_BUILD)
3705AC_SUBST(DLLTOOL_FOR_BUILD)
3b5e8ee4 3706AC_SUBST(DSYMUTIL_FOR_BUILD)
0999159b 3707AC_SUBST(GFORTRAN_FOR_BUILD)
632e2a07 3708AC_SUBST(GOC_FOR_BUILD)
b4c522fa 3709AC_SUBST(GDC_FOR_BUILD)
0999159b
PB		 3710AC_SUBST(LDFLAGS_FOR_BUILD)
3711AC_SUBST(LD_FOR_BUILD)
3712AC_SUBST(NM_FOR_BUILD)
3713AC_SUBST(RANLIB_FOR_BUILD)
3714AC_SUBST(WINDMC_FOR_BUILD)
3715AC_SUBST(WINDRES_FOR_BUILD)
671aa708 3716
2abefe3d
PB		 3717# Generate default definitions for YACC, M4, LEX and other programs that run
3718# on the build machine. These are used if the Makefile can't locate these
3719# programs in objdir.
3720MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3721
3722AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3723case " $build_configdirs " in
3724 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2abefe3d
PB		 3725esac
3726
3727AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3728case " $build_configdirs " in
3729 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3730esac
3731
3732AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3733case " $build_configdirs " in
3734 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3735esac
3736
3737AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3738case " $build_configdirs " in
3739 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3740 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3741esac
3742
3743AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3744case " $build_configdirs " in
3745 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3746esac
3747
3748AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3749case " $build_configdirs " in
3750 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3751 *)
3752changequote(,)
d18ff35a 3753 # For an installed makeinfo, we require it to be from texinfo 4.7 or
2abefe3d
PB		 3754 # higher, else we use the "missing" dummy.
3755 if ${MAKEINFO} --version \
d18ff35a 3756 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
2abefe3d
PB		 3757 :
3758 else
3759 MAKEINFO="$MISSING makeinfo"
3760 fi
3761 ;;
3762changequote([,])
3763esac
3764
3765# FIXME: expect and dejagnu may become build tools?
3766
3767AC_CHECK_PROGS(EXPECT, expect, expect)
3768case " $configdirs " in
3769 *" expect "*)
3770 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3771 ;;
3772esac
3773
3774AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3775case " $configdirs " in
3776 *" dejagnu "*)
c394e891 3777 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2abefe3d
PB		 3778 ;;
3779esac
3780
4e3dcf20 3781
671aa708 3782# Host tools.
2693c0b0
PB		 3783NCN_STRICT_CHECK_TOOLS(AR, ar)
3784NCN_STRICT_CHECK_TOOLS(AS, as)
3785NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3b5e8ee4 3786NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil)
2693c0b0 3787NCN_STRICT_CHECK_TOOLS(LD, ld)
2abefe3d 3788NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2693c0b0 3789NCN_STRICT_CHECK_TOOLS(NM, nm)
8927b7c0
RO		 3790NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3791NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
2693c0b0 3792NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
901119ae 3793NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
2693c0b0
PB		 3794NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3795NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
e4a9a572 3796NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
e7a82751 3797NCN_STRICT_CHECK_TOOLS(READELF, readelf)
671aa708
NN		 3798AC_SUBST(CC)
3799AC_SUBST(CXX)
3800AC_SUBST(CFLAGS)
3801AC_SUBST(CXXFLAGS)
5fee5ec3
IB		 3802AC_SUBST(GDC)
3803AC_SUBST(GDCFLAGS)
1ed21e23 3804GDCFLAGS=${GDCFLAGS-${CFLAGS}}
1ddd41fd 3805AC_SUBST(PKG_CONFIG_PATH)
671aa708 3806
126f707e
L		 3807GCC_PLUGIN_OPTION(PLUGIN_OPTION)
3808AR_PLUGIN_OPTION=
3809RANLIB_PLUGIN_OPTION=
3810if test -n "$PLUGIN_OPTION"; then
3811 if $AR --help 2>&1 | grep -q "\--plugin"; then
3812 AR_PLUGIN_OPTION="$PLUGIN_OPTION"
3813 fi
3814 if $RANLIB --help 2>&1 | grep -q "\--plugin"; then
3815 RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION"
3816 fi
3817fi
3818AC_SUBST(AR_PLUGIN_OPTION)
3819AC_SUBST(RANLIB_PLUGIN_OPTION)
3820
2abefe3d 3821# Target tools.
e8b05380 3822AC_ARG_WITH([build-time-tools],
33e39b66
AS		 3823 [AS_HELP_STRING([--with-build-time-tools=PATH],
3824 [use given path to find target tools during the build])],
e8b05380
PB		 3825 [case x"$withval" in
3826 x/*) ;;
3827 *)
3828 with_build_time_tools=
3829 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3830 ;;
3831 esac],
3832 [with_build_time_tools=])
3833
2693c0b0
PB		 3834NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3835NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2693c0b0 3836NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2693c0b0 3837NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
632e2a07 3838NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
b4c522fa 3839NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
1eee94d3 3840NCN_STRICT_CHECK_TARGET_TOOLS(GM2_FOR_TARGET, gm2)
e8b05380
PB		 3841
3842ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3843ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3844ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3b5e8ee4 3845ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil)
e8b05380
PB		 3846ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3847ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3848ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
9bccfdf5 3849ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
e8b05380 3850ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
e4a9a572 3851ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
8927b7c0 3852ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
e7a82751 3853ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
e8b05380
PB		 3854ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3855ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
901119ae 3856ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
4de997d1 3857
2abefe3d
PB		 3858RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3859
3860GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3861GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3862GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
b3f122e0 3863dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
2abefe3d 3864GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2077db1b 3865 [gcc/xg++ -B$$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$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
2abefe3d
PB		 3866 c++)
3867GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2077db1b 3868 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
2abefe3d
PB		 3869 c++)
3870GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3b5e8ee4 3871GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL)
2abefe3d 3872GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2abefe3d
PB		 3873GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3874 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
632e2a07
ILT		 3875GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3876 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
b4c522fa
IB		 3877GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3878 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
1eee94d3
GM		 3879GCC_TARGET_TOOL(gm2, GM2_FOR_TARGET, GM2,
3880 [gcc/gm2 -B$$r/$(HOST_SUBDIR)/gcc/], m2)
2abefe3d
PB		 3881GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3882GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3883GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
ec8fd1c0 3884GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
2abefe3d 3885GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
e4a9a572 3886GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
2abefe3d 3887GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
e7a82751 3888GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
455c8f48 3889GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
2abefe3d 3890GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
901119ae 3891GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
4de997d1 3892
2abefe3d 3893AC_SUBST(FLAGS_FOR_TARGET)
4de997d1 3894AC_SUBST(RAW_CXX_FOR_TARGET)
be912515 3895
671aa708
NN		 3896# Certain tools may need extra flags.
3897AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3898RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3899NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
6599da04 3900
2abefe3d
PB		 3901# When building target libraries, except in a Canadian cross, we use
3902# the same toolchain as the compiler we just built.
3903COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3904COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3905COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3906if test $host = $build; then
3907 case " $configdirs " in
3908 *" gcc "*)
3909 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3910 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3911 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3912 ;;
3913 esac
3914fi
3915
3916AC_SUBST(COMPILER_AS_FOR_TARGET)
3917AC_SUBST(COMPILER_LD_FOR_TARGET)
3918AC_SUBST(COMPILER_NM_FOR_TARGET)
3919
ee03dc5e
AO		 3920AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3921AC_ARG_ENABLE(maintainer-mode,
33e39b66
AS		 3922[AS_HELP_STRING([--enable-maintainer-mode],
3923 [enable make rules and dependencies not useful
3924 (and sometimes confusing) to the casual installer])],
ee03dc5e
AO		 3925 USE_MAINTAINER_MODE=$enableval,
3926 USE_MAINTAINER_MODE=no)
3927AC_MSG_RESULT($USE_MAINTAINER_MODE)
3928AC_SUBST(MAINTAINER_MODE_TRUE)
3929AC_SUBST(MAINTAINER_MODE_FALSE)
3930if test "$USE_MAINTAINER_MODE" = yes; then
3931 MAINTAINER_MODE_TRUE=
3932 MAINTAINER_MODE_FALSE='#'
3933else
3934 MAINTAINER_MODE_TRUE='#'
3935 MAINTAINER_MODE_FALSE=
3936fi
3937MAINT=$MAINTAINER_MODE_TRUE
3938AC_SUBST(MAINT)dnl
3939
2805b53a
NN		 3940# ---------------------
3941# GCC bootstrap support
3942# ---------------------
3943
3944# Stage specific cflags for build.
3945stage1_cflags="-g"
3946case $build in
3947 vax-*-*)
3948 case ${GCC} in
3949 yes) stage1_cflags="-g -Wa,-J" ;;
3950 *) stage1_cflags="-g -J" ;;
3951 esac ;;
2805b53a 3952esac
0b50988a 3953
2805b53a
NN		 3954AC_SUBST(stage1_cflags)
3955
8efea775
PB		 3956# Enable --enable-checking in stage1 of the compiler.
3957AC_ARG_ENABLE(stage1-checking,
33e39b66
AS		 3958[AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3959 [choose additional checking for stage1 of the compiler])],
8efea775 3960[stage1_checking=--enable-checking=${enable_stage1_checking}],
e643dc23 3961[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
c10b5ea0
JJ		 3962 # For --disable-checking or implicit --enable-checking=release, avoid
3963 # setting --enable-checking=gc in the default stage1 checking for LTO
3964 # bootstraps. See PR62077.
c10b5ea0
JJ		 3965 case $BUILD_CONFIG in
3966 *lto*)
7db11a5a
JJ		 3967 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3968 *)
3969 stage1_checking=--enable-checking=yes,types;;
c10b5ea0 3970 esac
7db11a5a
JJ		 3971 if test "x$enable_checking" = x && \
3972 test -d ${srcdir}/gcc && \
3973 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
c100769b 3974 stage1_checking=--enable-checking=yes,types,extra
7db11a5a 3975 fi
8efea775 3976else
e643dc23 3977 stage1_checking=--enable-checking=$enable_checking,types
8efea775
PB		 3978fi])
3979AC_SUBST(stage1_checking)
3980
2805b53a 3981# Enable -Werror in bootstrap stage2 and later.
2805b53a 3982AC_ARG_ENABLE(werror,
33e39b66 3983[AS_HELP_STRING([--enable-werror],
afd88efc
ML		 3984 [enable -Werror in bootstrap stage2 and later])],
3985[
09a9c095
NN		 3986case ${enable_werror} in
3987 yes) stage2_werror_flag="--enable-werror-always" ;;
3988 *) stage2_werror_flag="" ;;
2805b53a 3989esac
afd88efc
ML		 3990],
3991[
01c712cb
ML		 3992if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3993 case $BUILD_CONFIG in
3994 bootstrap-debug)
3995 stage2_werror_flag="--enable-werror-always" ;;
3996 "")
3997 stage2_werror_flag="--enable-werror-always" ;;
3998 esac
3999fi
afd88efc 4000])
01c712cb 4001
09a9c095 4002AC_SUBST(stage2_werror_flag)
2805b53a 4003
f2689b09
SE		 4004# Specify what files to not compare during bootstrap.
4005
4006compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
1eee94d3
GM		 4007compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/M2Version*"
4008compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/SYSTEM*"
4009compare_exclusions="$compare_exclusions | gcc/m2/gm2version*"
f2689b09
SE		 4010case "$target" in
4011 hppa*64*-*-hpux*) ;;
4f943869 4012 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
f2689b09
SE		 4013esac
4014AC_SUBST(compare_exclusions)
4015
3e54529c
RW		 4016AC_CONFIG_FILES([Makefile],
4017 [sed "$extrasub_build" Makefile |
4018 sed "$extrasub_host" |
4019 sed "$extrasub_target" > mf$$
4020 mv -f mf$$ Makefile],
4021 [extrasub_build="$extrasub_build"
4022 extrasub_host="$extrasub_host"
4023 extrasub_target="$extrasub_target"])
4024AC_OUTPUT
Mirror of https://gcc.gnu.org/git/gcc.git