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