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beeaf216 1# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
ec8fd1c0 2# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
88252529 3# 2014, 2015, 2016, 2019, 2022 Free Software Foundation, Inc.
6599da04
JM		 4#
5# This file is free software; you can redistribute it and/or modify it
6# under the terms of the GNU General Public License as published by
309c24a9 7# the Free Software Foundation; either version 3 of the License, or
6599da04
JM		 8# (at your option) any later version.
9#
10# This program is distributed in the hope that it will be useful, but
11# WITHOUT ANY WARRANTY; without even the implied warranty of
12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13# General Public License for more details.
14#
15# You should have received a copy of the GNU General Public License
309c24a9
JJ		 16# along with this program; see the file COPYING3. If not see
17# <http://www.gnu.org/licenses/>.
6599da04
JM		 18
19##############################################################################
671aa708
NN		 20### WARNING: this file contains embedded tabs. Do not run untabify on this file.
21
7142fb32
PB		 22m4_include(config/acx.m4)
23m4_include(config/override.m4)
38d24731 24m4_include(config/proginstall.m4)
7413962d 25m4_include(config/elf.m4)
ffac9597 26m4_include(config/ax_cxx_compile_stdcxx.m4)
126f707e 27m4_include(config/gcc-plugin.m4)
592c90ff
KG		 28m4_include([libtool.m4])
29m4_include([ltoptions.m4])
30m4_include([ltsugar.m4])
31m4_include([ltversion.m4])
32m4_include([lt~obsolete.m4])
33ad93b9 33m4_include([config/isl.m4])
ad6717df 34
671aa708 35AC_INIT(move-if-change)
0115d4a3 36AC_DISABLE_OPTION_CHECKING
1c710c3c 37
ad33ff57
RW		 38progname=$0
39# if PWD already has a value, it is probably wrong.
40if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
41
42# Export original configure arguments for use by sub-configures.
43# Quote arguments with shell meta charatcers.
44TOPLEVEL_CONFIGURE_ARGUMENTS=
45set -- "$progname" "$@"
46for ac_arg
47do
48 case "$ac_arg" in
49 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
50 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
51 # if the argument is of the form -foo=baz, quote the baz part only
52 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
53 *) ;;
54 esac
55 # Add the quoted argument to the list.
56 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
57done
58if test "$silent" = yes; then
59 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
60fi
61# Remove the initial space we just introduced and, as these will be
62# expanded by make, quote '$'.
63TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
64AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
65
1c710c3c
DJ		 66# Find the build, host, and target systems.
67ACX_NONCANONICAL_BUILD
68ACX_NONCANONICAL_HOST
69ACX_NONCANONICAL_TARGET
70
71dnl Autoconf 2.5x and later will set a default program prefix if
72dnl --target was used, even if it was the same as --host. Disable
73dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
74dnl to take effect.
75test "$host_noncanonical" = "$target_noncanonical" &&
76 test "$program_prefix$program_suffix$program_transform_name" = \
77 NONENONEs,x,x, &&
78 program_transform_name=s,y,y,
79
671aa708
NN		 80AC_CANONICAL_SYSTEM
81AC_ARG_PROGRAM
82
1c710c3c 83m4_pattern_allow([^AS_FOR_TARGET$])dnl
0999159b 84m4_pattern_allow([^AS_FOR_BUILD$])dnl
1c710c3c 85
775956d0
NN		 86# Get 'install' or 'install-sh' and its variants.
87AC_PROG_INSTALL
ad6717df 88ACX_PROG_LN
148907ea 89AC_PROG_LN_S
87264276
PB		 90AC_PROG_SED
91AC_PROG_AWK
775956d0 92
fc45f3fe
DJ		 93srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
94
95# We pass INSTALL explicitly to sub-makes. Make sure that it is not
96# a relative path.
97if test "$INSTALL" = "${srcdir}/install-sh -c"; then
98 INSTALL="${srcpwd}/install-sh -c"
99fi
100
671aa708
NN		 101# Set srcdir to "." if that's what it is.
102# This is important for multilib support.
103pwd=`${PWDCMD-pwd}`
671aa708
NN		 104if test "${pwd}" = "${srcpwd}" ; then
105 srcdir=.
106fi
107
108topsrcdir=$srcpwd
6599da04 109
4977bab6 110extra_host_args=
afabd8e6 111
6599da04
JM		 112### To add a new directory to the tree, first choose whether it is a target
113### or a host dependent tool. Then put it into the appropriate list
4977bab6
ZW		 114### (library or tools, host or target), doing a dependency sort.
115
116# Subdirs will be configured in the order listed in build_configdirs,
117# configdirs, or target_configdirs; see the serialization section below.
118
119# Dependency sorting is only needed when *configuration* must be done in
120# a particular order. In all cases a dependency should be specified in
121# the Makefile, whether or not it's implicitly specified here.
6599da04 122
4977bab6
ZW		 123# Double entries in build_configdirs, configdirs, or target_configdirs may
124# cause circular dependencies and break everything horribly.
6599da04 125
23f6b2f9
PB		 126# these library is used by various programs built for the build
127# environment
128#
929315a9 129build_libs="build-libiberty build-libcpp"
23f6b2f9
PB		 130
131# these tools are built for the build environment
85bfb75e 132build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
23f6b2f9 133
6599da04 134# these libraries are used by various programs built for the host environment
eae1a5d4 135#f
725fb359 136host_libs="gettext libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libcody libdecnumber gmp mpfr mpc isl libiconv libctf libsframe libgrust "
6599da04 137
6599da04
JM		 138# these tools are built for the host environment
139# Note, the powerpc-eabi build depends on sim occurring before gdb in order to
140# know that we are building the simulator.
4977bab6
ZW		 141# binutils, gas and ld appear in that order because it makes sense to run
142# "make check" in that particular order.
38e3d868 143# If --enable-gold is used, "gold" may replace "ld".
1eee94d3 144host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gdbserver gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gm2tools gotools c++tools"
5d4a5ee6 145
6599da04
JM		 146# these libraries are built for the target environment, and are built after
147# the host libraries and the host tools (which may be a cross compiler)
8499116a 148# Note that libiberty is not a target library.
291f172e 149target_libraries="target-libgcc \
eff02e4f 150 target-libbacktrace \
5d4a5ee6
JL		 151 target-libgloss \
152 target-newlib \
6d3b5aea 153 target-libgomp \
48310492 154 target-libatomic \
0a35513e 155 target-libitm \
cb543528 156 target-libstdc++-v3 \
f35db108 157 target-libsanitizer \
2077db1b 158 target-libvtv \
77008252 159 target-libssp \
1ec601bf 160 target-libquadmath \
6de9cd9a 161 target-libgfortran \
012447ea 162 target-libffi \
d9cdb878 163 target-libobjc \
632e2a07 164 target-libada \
1eee94d3 165 target-libgm2 \
b4c522fa 166 target-libgo \
725fb359 167 target-libgrust \
bb50312e
IB		 168 target-libphobos \
169 target-zlib"
6599da04 170
4dbda6f0
NN		 171# these tools are built using the target libraries, and are intended to
172# run only in the target environment
6599da04 173#
4dbda6f0 174# note: any program that *uses* libraries that are in the "target_libraries"
1bcce263 175# list belongs in this list.
6599da04 176#
85bfb75e 177target_tools="target-rda"
6599da04
JM		 178
179################################################################################
180
6599da04
JM		 181## All tools belong in one of the four categories, and are assigned above
182## We assign ${configdirs} this way to remove all embedded newlines. This
183## is important because configure will choke if they ever get through.
184## ${configdirs} is directories we build using the host tools.
185## ${target_configdirs} is directories we build using the target tools.
6599da04 186configdirs=`echo ${host_libs} ${host_tools}`
4dbda6f0 187target_configdirs=`echo ${target_libraries} ${target_tools}`
71b5d516 188build_configdirs=`echo ${build_libs} ${build_tools}`
8b87bb96 189
ac9e6043 190m4_divert_text([PARSE_ARGS],
87841584
AM		 191[case $srcdir in
192 *" "*)
193m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
194 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
195m4_popdef([AS_MESSAGE_LOG_FD])dnl
196 ;;
197esac
198ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
ac9e6043
RW		 199])
200
6599da04
JM		 201################################################################################
202
6599da04
JM		 203srcname="gnu development package"
204
205# This gets set non-empty for some net releases of packages.
206appdirs=""
207
e1848dde
NN		 208# Define is_cross_compiler to save on calls to 'test'.
209is_cross_compiler=
210if test x"${host}" = x"${target}" ; then
211 is_cross_compiler=no
212else
213 is_cross_compiler=yes
214fi
215
b4acb5ef 216# Find the build and target subdir names.
8b87bb96 217GCC_TOPLEV_SUBDIRS
0db770bd
RW		 218# Be sure to cover against remnants of an in-tree build.
219if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
220 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
221Use a pristine source tree when building in a separate tree])
222fi
f653f0ab 223
55380b08
NN		 224# Skipdirs are removed silently.
225skipdirs=
226# Noconfigdirs are removed loudly.
227noconfigdirs=""
6599da04 228
55380b08
NN		 229use_gnu_ld=
230# Make sure we don't let GNU ld be added if we didn't want it.
231if test x$with_gnu_ld = xno ; then
232 use_gnu_ld=no
5afab7ad 233 noconfigdirs="$noconfigdirs ld gold"
6599da04
JM		 234fi
235
55380b08
NN		 236use_gnu_as=
237# Make sure we don't let GNU as be added if we didn't want it.
238if test x$with_gnu_as = xno ; then
239 use_gnu_as=no
240 noconfigdirs="$noconfigdirs gas"
6599da04
JM		 241fi
242
d7f09764 243use_included_zlib=
a05c2c75
L		 244AC_ARG_WITH(system-zlib,
245[AS_HELP_STRING([--with-system-zlib], [use installed libz])])
d7f09764
DN		 246# Make sure we don't let ZLIB be added if we didn't want it.
247if test x$with_system_zlib = xyes ; then
248 use_included_zlib=no
249 noconfigdirs="$noconfigdirs zlib"
250fi
251
36ba9851
ДП		 252# Don't compile the bundled readline/libreadline.a if --with-system-readline
253# is provided.
254if test x$with_system_readline = xyes ; then
255 noconfigdirs="$noconfigdirs readline"
256fi
257
407a2c9a
FS		 258AC_ARG_WITH(zstd,
259[AS_HELP_STRING([--with-zstd], [Support zstd compressed debug sections (default=auto)])])
260
55380b08
NN		 261# some tools are so dependent upon X11 that if we're not building with X,
262# it's not even worth trying to configure, much less build, that tool.
6599da04 263
55380b08
NN		 264case ${with_x} in
265 yes | "") ;; # the default value for this tree is that X11 is available
423ce3eb 266 no)
b4f96efe 267 skipdirs="${skipdirs} tk itcl libgui"
423ce3eb
NN		 268 # We won't be able to build gdbtk without X.
269 enable_gdbtk=no
270 ;;
55380b08
NN		 271 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
272esac
6599da04 273
1bcce263 274# Some are only suitable for cross toolchains.
95ddd785
NN		 275# Remove these if host=target.
276cross_only="target-libgloss target-newlib target-opcodes"
6599da04 277
55380b08
NN		 278case $is_cross_compiler in
279 no) skipdirs="${skipdirs} ${cross_only}" ;;
55380b08 280esac
6599da04 281
0c639b89
DD		 282# If both --with-headers and --with-libs are specified, default to
283# --without-newlib.
9082a750
MR		 284if test x"${with_headers}" != x && test x"${with_headers}" != xno \
285 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
0c639b89
DD		 286 if test x"${with_newlib}" = x ; then
287 with_newlib=no
288 fi
289fi
290
291# Recognize --with-newlib/--without-newlib.
292case ${with_newlib} in
293 no) skipdirs="${skipdirs} target-newlib" ;;
294 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
295esac
296
85c64bbe
BS		 297AC_ARG_ENABLE(as-accelerator-for,
298[AS_HELP_STRING([--enable-as-accelerator-for=ARG],
299 [build as offload target compiler.
4b4f2e35 300 Specify offload host triple by ARG])])
85c64bbe
BS		 301
302AC_ARG_ENABLE(offload-targets,
303[AS_HELP_STRING([--enable-offload-targets=LIST],
304 [enable offloading to devices from comma-separated LIST of
305 TARGET[=DIR]. Use optional path to find offload target compiler
306 during the build])],
307[
308 if test x"$enable_offload_targets" = x; then
309 AC_MSG_ERROR([no offload targets specified])
310 fi
311], [enable_offload_targets=])
312
fe5bfa67
TB		 313AC_ARG_ENABLE(offload-defaulted,
314[AS_HELP_STRING([--enable-offload-defaulted]
315 [If enabled, configured but not installed offload compilers and
316 libgomp plugins are silently ignored. Useful for distribution
317 compilers where those are in separate optional packages.])],
318[enable_offload_defaulted=$enableval],
319[enable_offload_defaulted=])
320
21539e2e
MK		 321# Handle --enable-gold, --enable-ld.
322# --disable-gold [--enable-ld]
323# Build only ld. Default option.
9580395f
L		 324# --enable-gold [--enable-ld]
325# Build both gold and ld. Install gold as "ld.gold", install ld
326# as "ld.bfd" and "ld".
327# --enable-gold=default [--enable-ld]
21539e2e
MK		 328# Build both gold and ld. Install gold as "ld.gold" and "ld",
329# install ld as "ld.bfd".
330# --enable-gold[=default] --disable-ld
331# Build only gold, which is then installed as both "ld.gold" and "ld".
332# --enable-gold --enable-ld=default
9580395f
L		 333# Build both gold (installed as "ld.gold") and ld (installed as "ld"
334# and ld.bfd).
21539e2e
MK		 335# In other words, ld is default
336# --enable-gold=default --enable-ld=default
337# Error.
338
339default_ld=
5afab7ad 340AC_ARG_ENABLE(gold,
33e39b66
AS		 341[AS_HELP_STRING([[--enable-gold[=ARG]]],
342 [build gold @<:@ARG={default,yes,no}@:>@])],
5afab7ad
ILT		 343ENABLE_GOLD=$enableval,
344ENABLE_GOLD=no)
21539e2e
MK		 345case "${ENABLE_GOLD}" in
346 yes|default)
38e3d868
RM		 347 # Check for ELF target.
348 is_elf=no
349 case "${target}" in
350 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
0e76460f 351 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
8c6d158a 352 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
ead5103c 353 | *-*-solaris2* | *-*-nto* | *-*-nacl* | *-*-haiku*)
38e3d868
RM		 354 case "${target}" in
355 *-*-linux*aout* | *-*-linux*oldld*)
356 ;;
357 *)
358 is_elf=yes
359 ;;
360 esac
361 esac
362
363 if test "$is_elf" = "yes"; then
364 # Check for target supported by gold.
5afab7ad 365 case "${target}" in
7705dfd1 366 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
f09a9dd3 367 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
21539e2e
MK		 368 configdirs="$configdirs gold"
369 if test x${ENABLE_GOLD} = xdefault; then
370 default_ld=gold
371 fi
38e3d868 372 ENABLE_GOLD=yes
5afab7ad
ILT		 373 ;;
374 esac
38e3d868
RM		 375 fi
376 ;;
377 no)
378 ;;
379 *)
380 AC_MSG_ERROR([invalid --enable-gold argument])
381 ;;
21539e2e
MK		 382esac
383
384AC_ARG_ENABLE(ld,
33e39b66
AS		 385[AS_HELP_STRING([[--enable-ld[=ARG]]],
386 [build ld @<:@ARG={default,yes,no}@:>@])],
21539e2e
MK		 387ENABLE_LD=$enableval,
388ENABLE_LD=yes)
389
390case "${ENABLE_LD}" in
391 default)
9580395f 392 if test x${default_ld} != x; then
21539e2e
MK		 393 AC_MSG_ERROR([either gold or ld can be the default ld])
394 fi
395 ;;
396 yes)
397 ;;
398 no)
399 if test x${ENABLE_GOLD} != xyes; then
400 AC_MSG_WARN([neither ld nor gold are enabled])
401 fi
402 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
403 ;;
404 *)
405 AC_MSG_ERROR([invalid --enable-ld argument])
406 ;;
407esac
5afab7ad 408
24552056
VM		 409AC_ARG_ENABLE(gprofng,
410[AS_HELP_STRING([[--enable-gprofng[=ARG]]],
411 [build gprofng @<:@ARG={yes,no}@:>@])],
412enable_gprofng=$enableval,
413enable_gprofng=yes)
414if test "$enable_gprofng" = "yes"; then
415 case "${target}" in
416 x86_64-*-linux* | i?86-*-linux* | aarch64-*-linux*)
417 configdirs="$configdirs gprofng"
418 ;;
419 esac
420fi
421
422
78edb32f
L		 423# PR gas/19109
424# Decide the default method for compressing debug sections.
425# Provide a configure time option to override our default.
426AC_ARG_ENABLE(compressed_debug_sections,
324402a0 427[AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
78edb32f
L		 428 [Enable compressed debug sections for gas, gold or ld by
429 default])],
430[
431 if test x"$enable_compressed_debug_sections" = xyes; then
432 AC_MSG_ERROR([no program with compressed debug sections specified])
433 fi
434], [enable_compressed_debug_sections=])
435
c9884636
ML		 436# Select default compression algorithm.
437AC_ARG_ENABLE(default_compressed_debug_sections_algorithm,
438[AS_HELP_STRING([--enable-default-compressed-debug-sections-algorithm={zlib,zstd}],
439 [Default compression algorithm for --enable-compressed-debug-sections.])],
440[], [default_compressed_debug_sections_algorithm=])
441
6599da04
JM		 442# Configure extra directories which are host specific
443
444case "${host}" in
55380b08 445 *-cygwin*)
4977bab6 446 configdirs="$configdirs libtermcap" ;;
6599da04
JM		 447esac
448
4fab7234
HPN		 449# A target can indicate whether a language isn't supported for some reason.
450# Only spaces may be used in this macro; not newlines or tabs.
451unsupported_languages=
452
6599da04
JM		 453# Remove more programs from consideration, based on the host or
454# target this usually means that a port of the program doesn't
455# exist yet.
456
6599da04 457case "${host}" in
111eeb6e 458 i[[3456789]]86-*-msdosdjgpp*)
c9bdb152 459 noconfigdirs="$noconfigdirs tcl tk itcl"
5d4a5ee6 460 ;;
6599da04
JM		 461esac
462
a49d42e8
LM		 463# Default to --disable-year2038 until we can handle differences between
464# projects that use gnulib (which understands year 2038) and projects that
465# do not (like BFD).
466AC_ARG_ENABLE(year2038,
467AS_HELP_STRING([--enable-year2038],
468 [enable support for timestamps past the year 2038]),
469ENABLE_YEAR2038=$enableval,
470ENABLE_YEAR2038=no)
471enable_year2038=
472if test "${ENABLE_YEAR2038}" = "no" ; then
473 enable_year2038=no
474fi
6de9cd9a 475
87e6d9dc
TB		 476AC_ARG_ENABLE(libquadmath,
477AS_HELP_STRING([--disable-libquadmath],
478 [do not build libquadmath directory]),
479ENABLE_LIBQUADMATH=$enableval,
480ENABLE_LIBQUADMATH=yes)
481if test "${ENABLE_LIBQUADMATH}" = "no" ; then
482 noconfigdirs="$noconfigdirs target-libquadmath"
483fi
484
485
486AC_ARG_ENABLE(libquadmath-support,
487AS_HELP_STRING([--disable-libquadmath-support],
488 [disable libquadmath support for Fortran]),
489ENABLE_LIBQUADMATH_SUPPORT=$enableval,
490ENABLE_LIBQUADMATH_SUPPORT=yes)
491enable_libquadmath_support=
492if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
493 enable_libquadmath_support=no
494fi
495
496
d9cdb878 497AC_ARG_ENABLE(libada,
33e39b66 498[AS_HELP_STRING([--enable-libada], [build libada directory])],
d9cdb878
AC		 499ENABLE_LIBADA=$enableval,
500ENABLE_LIBADA=yes)
501if test "${ENABLE_LIBADA}" != "yes" ; then
5395b47b 502 noconfigdirs="$noconfigdirs gnattools"
d9cdb878
AC		 503fi
504
1eee94d3
GM		 505AC_ARG_ENABLE(libgm2,
506[AS_HELP_STRING([--enable-libgm2], [build libgm2 directory])],
507ENABLE_LIBGM2=$enableval,
508ENABLE_LIBGM2=no)
509if test "${ENABLE_LIBGM2}" != "yes" ; then
510 noconfigdirs="$noconfigdirs gm2tools"
511fi
512
ef0087a7 513AC_ARG_ENABLE(libssp,
33e39b66 514[AS_HELP_STRING([--enable-libssp], [build libssp directory])],
ef0087a7
KH		 515ENABLE_LIBSSP=$enableval,
516ENABLE_LIBSSP=yes)
ef0087a7 517
2588b26e
RM		 518AC_ARG_ENABLE(libstdcxx,
519AS_HELP_STRING([--disable-libstdcxx],
520 [do not build libstdc++-v3 directory]),
521ENABLE_LIBSTDCXX=$enableval,
522ENABLE_LIBSTDCXX=default)
523[if test "${ENABLE_LIBSTDCXX}" = "no" ; then
1007a55c 524 noconfigdirs="$noconfigdirs target-libstdc++-v3"
2588b26e
RM		 525fi]
526
44a7d18d 527# Enable libgomp by default on hosted POSIX systems, and a few others.
27079765 528if test x$enable_libgomp = x ; then
953ff289 529 case "${target}" in
416ac4d4 530 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
953ff289 531 ;;
8c6d158a 532 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
953ff289 533 ;;
b24513a1 534 *-*-solaris2* | *-*-hpux11*)
953ff289 535 ;;
cac90078 536 *-*-darwin* | *-*-aix*)
953ff289 537 ;;
29b1533a 538 nvptx*-*-* | amdgcn*-*-*)
44a7d18d 539 ;;
953ff289
DN		 540 *)
541 noconfigdirs="$noconfigdirs target-libgomp"
542 ;;
543 esac
27079765 544fi
953ff289 545
48310492
RH		 546# Disable libatomic on unsupported systems.
547if test -d ${srcdir}/libatomic; then
548 if test x$enable_libatomic = x; then
549 AC_MSG_CHECKING([for libatomic support])
550 if (srcdir=${srcdir}/libatomic; \
551 . ${srcdir}/configure.tgt; \
552 test -n "$UNSUPPORTED")
553 then
554 AC_MSG_RESULT([no])
555 noconfigdirs="$noconfigdirs target-libatomic"
556 else
557 AC_MSG_RESULT([yes])
558 fi
559 fi
560fi
561
e948157d
RH		 562# Disable libitm on unsupported systems.
563if test -d ${srcdir}/libitm; then
564 if test x$enable_libitm = x; then
565 AC_MSG_CHECKING([for libitm support])
566 if (srcdir=${srcdir}/libitm; \
567 . ${srcdir}/configure.tgt; \
568 test -n "$UNSUPPORTED")
569 then
570 AC_MSG_RESULT([no])
571 noconfigdirs="$noconfigdirs target-libitm"
572 else
573 AC_MSG_RESULT([yes])
574 fi
575 fi
0a35513e
AH		 576fi
577
93bf5390
RH		 578# Disable libsanitizer on unsupported systems.
579if test -d ${srcdir}/libsanitizer; then
580 if test x$enable_libsanitizer = x; then
581 AC_MSG_CHECKING([for libsanitizer support])
582 if (srcdir=${srcdir}/libsanitizer; \
583 . ${srcdir}/configure.tgt; \
584 test -n "$UNSUPPORTED")
585 then
586 AC_MSG_RESULT([no])
587 noconfigdirs="$noconfigdirs target-libsanitizer"
588 else
589 AC_MSG_RESULT([yes])
590 fi
591 fi
592fi
593
2077db1b
CT		 594# Disable libvtv on unsupported systems.
595if test -d ${srcdir}/libvtv; then
596 if test x$enable_libvtv = x; then
597 AC_MSG_CHECKING([for libvtv support])
598 if (srcdir=${srcdir}/libvtv; \
599 . ${srcdir}/configure.tgt; \
1e74b850 600 test "$VTV_SUPPORTED" != "yes")
2077db1b
CT		 601 then
602 AC_MSG_RESULT([no])
603 noconfigdirs="$noconfigdirs target-libvtv"
604 else
605 AC_MSG_RESULT([yes])
606 fi
607 fi
608fi
609
d7a29167
DE		 610# Disable libquadmath for some systems.
611case "${target}" in
e7fae550
DE		 612 avr-*-*)
613 noconfigdirs="$noconfigdirs target-libquadmath"
614 ;;
d7a29167
DE		 615 # libquadmath is unused on AIX and libquadmath build process use of
616 # LD_LIBRARY_PATH can break AIX bootstrap.
617 powerpc-*-aix* | rs6000-*-aix*)
618 noconfigdirs="$noconfigdirs target-libquadmath"
619 ;;
620esac
621
1e9e0e23
JM		 622# Disable libssp for some systems.
623case "${target}" in
624 avr-*-*)
b318fb4b 625 # No hosted I/O support.
1e9e0e23
JM		 626 noconfigdirs="$noconfigdirs target-libssp"
627 ;;
91dfef96
JM		 628 bpf-*-*)
629 noconfigdirs="$noconfigdirs target-libssp"
630 ;;
1e9e0e23
JM		 631 powerpc-*-aix* | rs6000-*-aix*)
632 noconfigdirs="$noconfigdirs target-libssp"
633 ;;
8d2af3a2
DD		 634 pru-*-*)
635 # No hosted I/O support.
636 noconfigdirs="$noconfigdirs target-libssp"
637 ;;
85b8555e
DD		 638 rl78-*-*)
639 # libssp uses a misaligned load to trigger a fault, but the RL78
640 # doesn't fault for those - instead, it gives a build-time error
641 # for explicit misaligned loads.
642 noconfigdirs="$noconfigdirs target-libssp"
643 ;;
0969ec7d
EB		 644 visium-*-*)
645 # No hosted I/O support.
646 noconfigdirs="$noconfigdirs target-libssp"
647 ;;
1e9e0e23
JM		 648esac
649
1e9e0e23 650# Disable libstdc++-v3 for some systems.
67a1cb2a 651# Allow user to override this if they pass --enable-libstdcxx
2588b26e
RM		 652if test "${ENABLE_LIBSTDCXX}" = "default" ; then
653 case "${target}" in
654 *-*-vxworks*)
655 # VxWorks uses the Dinkumware C++ library.
656 noconfigdirs="$noconfigdirs target-libstdc++-v3"
657 ;;
afa3d80e
TS		 658 amdgcn*-*-*)
659 # Not ported/fails to build when using newlib.
660 noconfigdirs="$noconfigdirs target-libstdc++-v3"
661 ;;
2588b26e
RM		 662 arm*-wince-pe*)
663 # the C++ libraries don't build on top of CE's C libraries
664 noconfigdirs="$noconfigdirs target-libstdc++-v3"
665 ;;
666 avr-*-*)
667 noconfigdirs="$noconfigdirs target-libstdc++-v3"
668 ;;
91dfef96
JM		 669 bpf-*-*)
670 noconfigdirs="$noconfigdirs target-libstdc++-v3"
671 ;;
fef939d6
JB		 672 ft32-*-*)
673 noconfigdirs="$noconfigdirs target-libstdc++-v3"
674 ;;
2588b26e
RM		 675 esac
676fi
1e9e0e23 677
91dfef96
JM		 678# Disable C++ on systems where it is known to not work.
679# For testing, you can override this with --enable-languages=c++.
680case ,${enable_languages}, in
681 *,c++,*)
682 ;;
683 *)
684 case "${target}" in
685 bpf-*-*)
686 unsupported_languages="$unsupported_languages c++"
687 ;;
688 esac
689 ;;
690esac
691
692# Disable Objc on systems where it is known to not work.
693# For testing, you can override this with --enable-languages=objc.
694case ,${enable_languages}, in
695 *,objc,*)
696 ;;
697 *)
698 case "${target}" in
699 bpf-*-*)
700 unsupported_languages="$unsupported_languages objc"
701 ;;
702 esac
703 ;;
704esac
705
260eedb9
IB		 706# Disable D on systems where it is known to not work.
707# For testing, you can override this with --enable-languages=d.
708case ,${enable_languages}, in
709 *,d,*)
710 ;;
711 *)
712 case "${target}" in
91dfef96 713 bpf-*-*)
260eedb9
IB		 714 unsupported_languages="$unsupported_languages d"
715 ;;
716 esac
717 ;;
718esac
719
720# Disable libphobos on unsupported systems.
721# For testing, you can override this with --enable-libphobos.
722if test -d ${srcdir}/libphobos; then
723 if test x$enable_libphobos = x; then
724 AC_MSG_CHECKING([for libphobos support])
725 if (srcdir=${srcdir}/libphobos; \
726 . ${srcdir}/configure.tgt; \
7d31d331 727 test "$LIBPHOBOS_SUPPORTED" != "yes")
260eedb9
IB		 728 then
729 AC_MSG_RESULT([no])
730 noconfigdirs="$noconfigdirs target-libphobos"
731 else
732 AC_MSG_RESULT([yes])
733 fi
734 fi
735fi
736
1e9e0e23
JM		 737# Disable Fortran for some systems.
738case "${target}" in
739 mmix-*-*)
740 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
741 unsupported_languages="$unsupported_languages fortran"
742 ;;
91dfef96
JM		 743 bpf-*-*)
744 unsupported_languages="$unsupported_languages fortran"
745 ;;
1e9e0e23
JM		 746esac
747
012447ea
JJ		 748# Disable libffi for some systems.
749case "${target}" in
750 powerpc-*-darwin*)
751 ;;
752 i[[3456789]]86-*-darwin*)
753 ;;
754 x86_64-*-darwin[[912]]*)
755 ;;
756 *-*-darwin*)
757 noconfigdirs="$noconfigdirs target-libffi"
758 ;;
759 *-*-netware*)
760 noconfigdirs="$noconfigdirs target-libffi"
761 ;;
762 *-*-phoenix*)
763 noconfigdirs="$noconfigdirs target-libffi"
764 ;;
765 *-*-rtems*)
766 noconfigdirs="$noconfigdirs target-libffi"
767 ;;
768 *-*-tpf*)
769 noconfigdirs="$noconfigdirs target-libffi"
770 ;;
771 *-*-uclinux*)
772 noconfigdirs="$noconfigdirs target-libffi"
773 ;;
774 *-*-vxworks*)
775 noconfigdirs="$noconfigdirs target-libffi"
776 ;;
b20e7532
AT		 777 aarch64*-*-freebsd*)
778 noconfigdirs="$noconfigdirs target-libffi"
779 ;;
012447ea
JJ		 780 alpha*-*-*vms*)
781 noconfigdirs="$noconfigdirs target-libffi"
782 ;;
783 arm*-*-freebsd*)
784 noconfigdirs="$noconfigdirs target-libffi"
785 ;;
786 arm-wince-pe)
787 noconfigdirs="$noconfigdirs target-libffi"
788 ;;
789 arm*-*-symbianelf*)
790 noconfigdirs="$noconfigdirs target-libffi"
791 ;;
91dfef96
JM		 792 bpf-*-*)
793 noconfigdirs="$noconfigdirs target-libffi"
794 ;;
012447ea
JJ		 795 cris-*-* | crisv32-*-*)
796 case "${target}" in
797 *-*-linux*)
798 ;;
799 *) # See PR46792 regarding target-libffi.
800 noconfigdirs="$noconfigdirs target-libffi";;
801 esac
802 ;;
803 hppa*64*-*-hpux*)
804 noconfigdirs="$noconfigdirs target-libffi"
805 ;;
b48e9940
AA		 806 hppa*-hp-hpux11*)
807 ;;
808 hppa*-*-hpux*)
809 noconfigdirs="$noconfigdirs target-libffi"
810 ;;
012447ea
JJ		 811 ia64*-*-*vms*)
812 noconfigdirs="$noconfigdirs target-libffi"
813 ;;
814 i[[3456789]]86-w64-mingw*)
815 noconfigdirs="$noconfigdirs target-libffi"
816 ;;
817 i[[3456789]]86-*-mingw*)
818 noconfigdirs="$noconfigdirs target-libffi"
819 ;;
820 x86_64-*-mingw*)
821 noconfigdirs="$noconfigdirs target-libffi"
822 ;;
823 mmix-*-*)
824 noconfigdirs="$noconfigdirs target-libffi"
825 ;;
826 powerpc-*-aix*)
012447ea
JJ		 827 ;;
828 rs6000-*-aix*)
012447ea
JJ		 829 ;;
830 ft32-*-*)
831 noconfigdirs="$noconfigdirs target-libffi"
832 ;;
833 *-*-lynxos*)
834 noconfigdirs="$noconfigdirs target-libffi"
835 ;;
836esac
837
838# Disable the go frontend on systems where it is known to not work. Please keep
839# this in sync with contrib/config-list.mk.
840case "${target}" in
91dfef96 841*-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
012447ea
JJ		 842 unsupported_languages="$unsupported_languages go"
843 ;;
844esac
845
f9d09df0
TT		 846# Only allow gdbserver on some systems.
847if test -d ${srcdir}/gdbserver; then
848 if test x$enable_gdbserver = x; then
849 AC_MSG_CHECKING([for gdbserver support])
850 if (srcdir=${srcdir}/gdbserver; \
851 . ${srcdir}/configure.srv; \
852 test -n "$UNSUPPORTED")
853 then
854 AC_MSG_RESULT([no])
855 noconfigdirs="$noconfigdirs gdbserver"
856 else
857 AC_MSG_RESULT([yes])
858 fi
859 fi
860fi
861
cdbc9e92
ILT		 862# Disable libgo for some systems where it is known to not work.
863# For testing, you can easily override this with --enable-libgo.
864if test x$enable_libgo = x; then
865 case "${target}" in
866 *-*-darwin*)
867 # PR 46986
868 noconfigdirs="$noconfigdirs target-libgo"
869 ;;
870 *-*-cygwin* | *-*-mingw*)
871 noconfigdirs="$noconfigdirs target-libgo"
872 ;;
91dfef96
JM		 873 bpf-*-*)
874 noconfigdirs="$noconfigdirs target-libgo"
875 ;;
cdbc9e92
ILT		 876 esac
877fi
878
c03353e2
RIL		 879# Default libgloss CPU subdirectory.
880libgloss_dir="$target_cpu"
6de9cd9a 881
fbcf0dca
JM		 882case "${target}" in
883 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
884 libgloss_dir=wince
885 ;;
4dddfc74
YZ		 886 aarch64*-*-* )
887 libgloss_dir=aarch64
888 ;;
fbcf0dca
JM		 889 arm*-*-*)
890 libgloss_dir=arm
891 ;;
892 cris-*-* | crisv32-*-*)
893 libgloss_dir=cris
894 ;;
895 hppa*-*-*)
896 libgloss_dir=pa
897 ;;
898 i[[3456789]]86-*-*)
899 libgloss_dir=i386
900 ;;
c6c0594e 901 loongarch*-*-*)
902 libgloss_dir=loongarch
903 ;;
fbcf0dca
JM		 904 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
905 libgloss_dir=m68hc11
906 ;;
907 m68*-*-* | fido-*-*)
908 libgloss_dir=m68k
909 ;;
910 mips*-*-*)
911 libgloss_dir=mips
912 ;;
913 powerpc*-*-*)
914 libgloss_dir=rs6000
915 ;;
8d2af3a2
DD		 916 pru-*-*)
917 libgloss_dir=pru
918 ;;
fbcf0dca
JM		 919 sparc*-*-*)
920 libgloss_dir=sparc
921 ;;
922esac
923
6a789d5e 924# Disable newlib and libgloss for various target OSes.
6599da04 925case "${target}" in
6a789d5e
JM		 926 alpha*-dec-osf*)
927 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
928 ;;
929 i[[3456789]]86-*-linux*)
930 # This section makes it possible to build newlib natively on linux.
931 # If we are using a cross compiler then don't configure newlib.
932 if test x${is_cross_compiler} != xno ; then
933 noconfigdirs="$noconfigdirs target-newlib"
934 fi
935 noconfigdirs="$noconfigdirs target-libgloss"
936 # If we are not using a cross compiler, do configure newlib.
937 # Note however, that newlib will only be configured in this situation
938 # if the --with-newlib option has been given, because otherwise
939 # 'target-newlib' will appear in skipdirs.
940 ;;
941 i[[3456789]]86-*-rdos*)
942 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
943 ;;
944 sh*-*-pe|mips*-*-pe|arm-wince-pe)
945 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
946 ;;
947 sparc-*-sunos4*)
948 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
949 ;;
91dfef96
JM		 950 bpf-*-*)
951 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
952 ;;
6a789d5e
JM		 953 *-*-aix*)
954 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
955 ;;
956 *-*-beos*)
957 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
958 ;;
3fa03ff9 959 *-*-chorusos)
0036370f 960 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
3fa03ff9 961 ;;
6a789d5e
JM		 962 *-*-dragonfly*)
963 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
964 ;;
965 *-*-freebsd*)
966 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
967 ;;
968 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
969 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
970 ;;
971 *-*-lynxos*)
972 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
973 ;;
974 *-*-mingw*)
975 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
976 ;;
977 *-*-netbsd*)
978 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
979 ;;
980 *-*-netware*)
981 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
982 ;;
983 *-*-tpf*)
984 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
985 ;;
986 *-*-uclinux*)
987 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
988 ;;
989 *-*-vxworks*)
990 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
991 ;;
992esac
993
994case "${target}" in
995 *-*-chorusos)
996 ;;
3be96231
TG		 997 aarch64-*-darwin*)
998 noconfigdirs="$noconfigdirs ld gas gdb gprof"
999 noconfigdirs="$noconfigdirs sim target-rda"
1000 ;;
7431c1a1
AS		 1001 amdgcn*-*-*)
1002 ;;
3be96231
TG		 1003 arm-*-darwin*)
1004 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1005 noconfigdirs="$noconfigdirs sim target-rda"
1006 ;;
75eeae1a 1007 powerpc-*-darwin*)
e1514c3f 1008 noconfigdirs="$noconfigdirs ld gas gdb gprof"
9c8f9ec2 1009 noconfigdirs="$noconfigdirs sim target-rda"
940cde4d 1010 ;;
354ebf88
RW		 1011 i[[3456789]]86-*-darwin*)
1012 noconfigdirs="$noconfigdirs ld gprof"
1013 noconfigdirs="$noconfigdirs sim target-rda"
1014 ;;
1015 x86_64-*-darwin[[912]]*)
0db3a858
TG		 1016 noconfigdirs="$noconfigdirs ld gas gprof"
1017 noconfigdirs="$noconfigdirs sim target-rda"
1018 ;;
42c1cd8a
AT		 1019 *-*-darwin*)
1020 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1021 noconfigdirs="$noconfigdirs sim target-rda"
42c1cd8a 1022 ;;
8c6d158a 1023 *-*-dragonfly*)
8c6d158a 1024 ;;
c3f84f61 1025 *-*-freebsd*)
88252529 1026 if test "x$with_gmp" = x \
c0d0a722 1027 && ! test -d ${srcdir}/gmp \
6de9cd9a
DN		 1028 && test -f /usr/local/include/gmp.h; then
1029 with_gmp=/usr/local
1030 fi
6de9cd9a 1031 ;;
ef4e7569
US		 1032 *-*-kaos*)
1033 # Remove unsupported stuff on all kaOS configurations.
ef4e7569
US		 1034 noconfigdirs="$noconfigdirs target-libgloss"
1035 ;;
51584787 1036 *-*-netbsd*)
51584787 1037 ;;
61fec9ff 1038 *-*-netware*)
6599da04 1039 ;;
fd6487af
JS		 1040 *-*-phoenix*)
1041 noconfigdirs="$noconfigdirs target-libgloss"
1042 ;;
3fbc0b70 1043 *-*-rtems*)
2909494b 1044 noconfigdirs="$noconfigdirs target-libgloss"
3fbc0b70 1045 ;;
a8ba31f2
EC		 1046 # The tpf target doesn't support gdb yet.
1047 *-*-tpf*)
6a789d5e 1048 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
a8ba31f2 1049 ;;
5785c0ed 1050 *-*-uclinux*)
6a789d5e 1051 noconfigdirs="$noconfigdirs target-rda"
5785c0ed 1052 ;;
6599da04 1053 *-*-vxworks*)
6599da04 1054 ;;
b104e095 1055 alpha*-dec-osf*)
603606e7 1056 # ld works, but does not support shared libraries.
6599da04 1057 # gas doesn't generate exception information.
6a789d5e 1058 noconfigdirs="$noconfigdirs gas ld"
6599da04
JM		 1059 ;;
1060 alpha*-*-*vms*)
2909494b 1061 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
6599da04
JM		 1062 ;;
1063 alpha*-*-*)
1064 # newlib is not 64 bit ready
2909494b 1065 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1066 ;;
91dfef96
JM		 1067 bpf-*-*)
1068 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1069 ;;
3a685f6f 1070 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
b4f96efe 1071 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
3a685f6f 1072 ;;
2fd88f4f
AK		 1073 arc*-*-*)
1074 noconfigdirs="$noconfigdirs sim"
1075 ;;
6599da04 1076 arm-*-pe*)
2909494b 1077 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1078 ;;
5d4a5ee6 1079 arm-*-riscix*)
0036370f 1080 noconfigdirs="$noconfigdirs ld target-libgloss"
5d4a5ee6 1081 ;;
b588ae30
GJL		 1082 avr-*-*)
1083 if test x${with_avrlibc} != xno; then
1084 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1085 fi
1086 ;;
a5a438f5 1087 c4x-*-* | tic4x-*-*)
0036370f 1088 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1089 ;;
0036370f
JM		 1090 tic54x-*-*)
1091 noconfigdirs="$noconfigdirs target-libgloss gdb"
ab50d72b 1092 ;;
6599da04 1093 d10v-*-*)
0036370f 1094 noconfigdirs="$noconfigdirs target-libgloss"
d207ebef
JM		 1095 ;;
1096 d30v-*-*)
0036370f 1097 noconfigdirs="$noconfigdirs gdb"
6599da04 1098 ;;
09b5f8bf 1099 fr30-*-elf*)
2909494b 1100 noconfigdirs="$noconfigdirs gdb"
09b5f8bf 1101 ;;
a05c2c75
L		 1102 ft32-*-*)
1103 noconfigdirs="$noconfigdirs target-rda gprof"
1104 ;;
55f2d967 1105 moxie-*-*)
a05c2c75 1106 noconfigdirs="$noconfigdirs"
55f2d967 1107 ;;
ab50d72b 1108 h8300*-*-*)
2909494b 1109 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1110 ;;
6599da04 1111 h8500-*-*)
0036370f 1112 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1113 ;;
b48e9940
AA		 1114 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1115 ;;
a05c2c75
L		 1116 hppa*64*-*-hpux*)
1117 noconfigdirs="$noconfigdirs gdb"
1118 ;;
b48e9940
AA		 1119 hppa*-*-hpux11*)
1120 noconfigdirs="$noconfigdirs gdb ld"
1121 ;;
4569f85e 1122 hppa*64*-*-linux*)
cdbff0ab 1123 ;;
56f8587a 1124 hppa*-*-linux*)
3e732ba0 1125 ;;
6599da04 1126 hppa*-*-*elf* | \
bae29210 1127 hppa*-*-lites* | \
66350331 1128 hppa*-*-openbsd* | \
bae29210 1129 hppa*64*-*-*)
6599da04 1130 ;;
c03353e2 1131 hppa*-*-pro*)
c03353e2 1132 ;;
6599da04 1133 hppa*-*-*)
2909494b 1134 noconfigdirs="$noconfigdirs ld"
d207ebef 1135 ;;
fb87ad5d 1136 i960-*-*)
0036370f 1137 noconfigdirs="$noconfigdirs gdb"
fb87ad5d 1138 ;;
d207ebef
JM		 1139 ia64*-*-elf*)
1140 # No gdb support yet.
1bcce263 1141 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
d207ebef 1142 ;;
ab50d72b 1143 ia64*-**-hpux*)
5a2931d1 1144 # No ld support yet.
a05c2c75 1145 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
ab50d72b 1146 ;;
52535a64 1147 ia64*-*-*vms*)
091fe9ca
TG		 1148 # No ld support yet.
1149 noconfigdirs="$noconfigdirs libgui itcl ld"
52535a64 1150 ;;
ef4c4300 1151 i[[3456789]]86-w64-mingw*)
ef4c4300
KT		 1152 ;;
1153 i[[3456789]]86-*-mingw*)
b91f0a41 1154 target_configdirs="$target_configdirs target-winsup"
5d571eaa 1155 ;;
d207ebef
JM		 1156 *-*-cygwin*)
1157 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1bcce263 1158 noconfigdirs="$noconfigdirs target-libgloss"
801e2270 1159 # always build newlib if winsup directory is present.
b91f0a41 1160 if test -d "$srcdir/winsup/cygwin"; then
801e2270 1161 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
c8e6cd41 1162 elif test -d "$srcdir/newlib"; then
b91f0a41 1163 echo "Warning: winsup/cygwin is missing so newlib can't be built."
801e2270 1164 fi
5d571eaa 1165 ;;
f2a0e225 1166 i[[3456789]]86-*-pe)
ebb9f8b0 1167 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1168 ;;
f2a0e225 1169 i[[3456789]]86-*-sco3.2v5*)
6599da04
JM		 1170 # The linker does not yet know about weak symbols in COFF,
1171 # and is not configured to handle mixed ELF and COFF.
0036370f 1172 noconfigdirs="$noconfigdirs ld target-libgloss"
6599da04 1173 ;;
f2a0e225 1174 i[[3456789]]86-*-sco*)
0036370f 1175 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1176 ;;
fbdd5d87 1177 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
7c01b2b5 1178 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1179 ;;
f2a0e225 1180 i[[3456789]]86-*-sysv4*)
0036370f 1181 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1182 ;;
f2a0e225 1183 i[[3456789]]86-*-beos*)
6a789d5e 1184 noconfigdirs="$noconfigdirs gdb"
3aa83176 1185 ;;
d1f8db0c 1186 i[[3456789]]86-*-rdos*)
6a789d5e 1187 noconfigdirs="$noconfigdirs gdb"
c03353e2 1188 ;;
d344dce9 1189 mmix-*-*)
2909494b 1190 noconfigdirs="$noconfigdirs gdb"
d344dce9 1191 ;;
ab34901f 1192 mt-*-*)
79dd769c
AH		 1193 noconfigdirs="$noconfigdirs sim"
1194 ;;
58b40a67
FT		 1195 nfp-*-*)
1196 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1197 noconfigdirs="$noconfigdirs $target_libraries"
1198 ;;
e6cbe965
SC		 1199 pdp11-*-*)
1200 noconfigdirs="$noconfigdirs gdb gprof"
1201 ;;
6599da04
JM		 1202 powerpc-*-aix*)
1203 # copied from rs6000-*-* entry
6a789d5e 1204 noconfigdirs="$noconfigdirs gprof"
6599da04 1205 ;;
4569f85e 1206 powerpc*-*-winnt* | powerpc*-*-pe*)
6599da04 1207 target_configdirs="$target_configdirs target-winsup"
0036370f 1208 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
6599da04
JM		 1209 # always build newlib.
1210 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1211 ;;
1212 # This is temporary until we can link against shared libraries
1213 powerpcle-*-solaris*)
0036370f 1214 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
6599da04 1215 ;;
0da3b5a7 1216 powerpc-*-beos*)
6a789d5e 1217 noconfigdirs="$noconfigdirs gdb"
d207ebef 1218 ;;
6599da04 1219 rs6000-*-lynxos*)
6a789d5e 1220 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1221 ;;
1222 rs6000-*-aix*)
6a789d5e 1223 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1224 ;;
1225 rs6000-*-*)
2909494b 1226 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1227 ;;
1228 m68k-apollo-*)
0036370f 1229 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
6599da04 1230 ;;
ca9fe997 1231 microblaze*)
2909494b 1232 noconfigdirs="$noconfigdirs gprof"
ca9fe997 1233 ;;
74ae587e 1234 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
d9dced13
RS		 1235 if test x$with_newlib = xyes; then
1236 noconfigdirs="$noconfigdirs gprof"
1237 fi
d9dced13 1238 ;;
6599da04 1239 mips*-*-irix5*)
0036370f 1240 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04
JM		 1241 ;;
1242 mips*-*-irix6*)
2909494b 1243 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1244 ;;
6599da04 1245 mips*-*-bsd*)
bc98bcc4 1246 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
6599da04 1247 ;;
9bec4bf0 1248 mips*-*-linux*)
9bec4bf0 1249 ;;
bc98bcc4
JBG		 1250 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1251 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1252 noconfigdirs="$noconfigdirs ld gas gprof"
1253 ;;
6599da04 1254 mips*-*-*)
2909494b 1255 noconfigdirs="$noconfigdirs gprof"
6599da04 1256 ;;
738f2522 1257 nvptx*-*-*)
738f2522
BS		 1258 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1259 ;;
bc6d9014 1260 sh-*-*)
ea2002ba
CB		 1261 case "${target}" in
1262 sh*-*-elf)
2909494b 1263 ;;
ea2002ba 1264 *)
2909494b 1265 noconfigdirs="$noconfigdirs target-libgloss" ;;
ea2002ba 1266 esac
6599da04
JM		 1267 ;;
1268 sparc-*-sunos4*)
6a789d5e 1269 if test x${is_cross_compiler} = xno ; then
6599da04
JM		 1270 use_gnu_ld=no
1271 fi
1272 ;;
b42f0d7e 1273 tic6x-*-*)
0d557ff8 1274 noconfigdirs="$noconfigdirs sim"
b42f0d7e 1275 ;;
a885ec24
AA		 1276 tilepro*-*-* | tilegx*-*-*)
1277 noconfigdirs="$noconfigdirs sim"
1278 ;;
6599da04 1279 v810-*-*)
0036370f 1280 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
6599da04
JM		 1281 ;;
1282 vax-*-*)
2909494b 1283 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1284 ;;
1fc1d82e
MR		 1285 wasm32-*-*)
1286 noconfigdirs="$noconfigdirs ld"
1287 ;;
c6c0594e 1288 loongarch*-*-linux*)
1289 ;;
1290 loongarch*-*-*)
1291 noconfigdirs="$noconfigdirs gprof"
1292 ;;
6599da04
JM		 1293esac
1294
6599da04
JM		 1295# If we aren't building newlib, then don't build libgloss, since libgloss
1296# depends upon some newlib header files.
1297case "${noconfigdirs}" in
1298 *target-libgloss*) ;;
1299 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
55380b08 1300esac
6599da04 1301
55380b08 1302# Work in distributions that contain no compiler tools, like Autoconf.
671aa708 1303host_makefile_frag=/dev/null
55380b08
NN		 1304if test -d ${srcdir}/config ; then
1305case "${host}" in
f2a0e225 1306 i[[3456789]]86-*-msdosdjgpp*)
55380b08
NN		 1307 host_makefile_frag="config/mh-djgpp"
1308 ;;
1309 *-cygwin*)
2a79c47f 1310 ACX_CHECK_CYGWIN_CAT_WORKS
55380b08
NN		 1311 host_makefile_frag="config/mh-cygwin"
1312 ;;
c53a18d3 1313 *-mingw*)
1f5a6b84 1314 host_makefile_frag="config/mh-mingw"
738a52d3 1315 ;;
cabb9d59 1316 alpha*-linux*)
13be44ed
UB		 1317 host_makefile_frag="config/mh-alpha-linux"
1318 ;;
111eeb6e 1319 hppa*-hp-hpux*)
00afcaa0
PB		 1320 host_makefile_frag="config/mh-pa"
1321 ;;
1322 hppa*-*)
1323 host_makefile_frag="config/mh-pa"
1324 ;;
54258e22 1325 i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*)
d8ed14ce 1326 host_makefile_frag="config/mh-darwin"
be8fff81 1327 ;;
d19bca38
PB		 1328 powerpc-*-aix*)
1329 host_makefile_frag="config/mh-ppc-aix"
1330 ;;
1331 rs6000-*-aix*)
1332 host_makefile_frag="config/mh-ppc-aix"
1333 ;;
55380b08
NN		 1334esac
1335fi
1336
e4c9c075 1337if test "${build}" != "${host}" ; then
0999159b
PB		 1338 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1339 AS_FOR_BUILD=${AS_FOR_BUILD-as}
e4c9c075 1340 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
c841dc0a 1341 CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}"
0999159b 1342 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
3b5e8ee4 1343 DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil}
0999159b 1344 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
632e2a07 1345 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
b4c522fa 1346 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
0999159b
PB		 1347 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1348 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1349 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1350 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1351 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1352 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
e4c9c075 1353else
0999159b
PB		 1354 AR_FOR_BUILD="\$(AR)"
1355 AS_FOR_BUILD="\$(AS)"
e4c9c075 1356 CC_FOR_BUILD="\$(CC)"
0999159b 1357 CXX_FOR_BUILD="\$(CXX)"
3b5e8ee4 1358 DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)"
0999159b 1359 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
632e2a07 1360 GOC_FOR_BUILD="\$(GOC)"
b4c522fa 1361 GDC_FOR_BUILD="\$(GDC)"
0999159b
PB		 1362 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1363 LD_FOR_BUILD="\$(LD)"
1364 NM_FOR_BUILD="\$(NM)"
1365 RANLIB_FOR_BUILD="\$(RANLIB)"
1366 WINDRES_FOR_BUILD="\$(WINDRES)"
1367 WINDMC_FOR_BUILD="\$(WINDMC)"
c3a86da9 1368fi
e4c9c075 1369
91743432 1370AC_PROG_CC_C99
c3a86da9
DJ		 1371AC_PROG_CXX
1372
1373# We must set the default linker to the linker used by gcc for the correct
1374# operation of libtool. If LD is not defined and we are using gcc, try to
1375# set the LD default to the ld used by gcc.
1376if test -z "$LD"; then
1377 if test "$GCC" = yes; then
1378 case $build in
1379 *-*-mingw*)
1380 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1381 *)
1382 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1383 esac
1384 case $gcc_prog_ld in
1385 # Accept absolute paths.
1386 [[\\/]* | [A-Za-z]:[\\/]*)]
1387 LD="$gcc_prog_ld" ;;
1388 esac
1389 fi
e4c9c075
PB		 1390fi
1391
0b21f5d3
EB		 1392# Check whether -static-libstdc++ -static-libgcc is supported.
1393have_static_libs=no
1394if test "$GCC" = yes; then
1395 saved_LDFLAGS="$LDFLAGS"
1396
1397 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1398 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1399 AC_LANG_PUSH(C++)
22e05272 1400 AC_LINK_IFELSE([AC_LANG_SOURCE([
0d6414b2
EB		 1401#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1402#error -static-libstdc++ not implemented
1403#endif
22e05272 1404int main() {}])],
0b21f5d3
EB		 1405 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1406 [AC_MSG_RESULT([no])])
1407 AC_LANG_POP(C++)
1408
1409 LDFLAGS="$saved_LDFLAGS"
1410fi
1411
e4c9c075 1412ACX_PROG_GNAT
5fee5ec3 1413ACX_PROG_GDC
a76494aa 1414ACX_PROG_CMP_IGNORE_INITIAL
e4c9c075 1415
ff3ac0f4
ILT		 1416AC_ARG_ENABLE([bootstrap],
1417[AS_HELP_STRING([--enable-bootstrap],
1418 [enable bootstrapping @<:@yes if native build@:>@])],,
1419enable_bootstrap=default)
1420
1421# Issue errors and warnings for invalid/strange bootstrap combinations.
bf03b9ff
ILT		 1422if test -r $srcdir/gcc/configure; then
1423 have_compiler=yes
1424else
1425 have_compiler=no
1426fi
ff3ac0f4
ILT		 1427
1428case "$have_compiler:$host:$target:$enable_bootstrap" in
1429 *:*:*:no) ;;
1430
1431 # Default behavior. Enable bootstrap if we have a compiler
1432 # and we are in a native configuration.
1433 yes:$build:$build:default)
1434 enable_bootstrap=yes ;;
1435
1436 *:*:*:default)
1437 enable_bootstrap=no ;;
1438
1439 # We have a compiler and we are in a native configuration, bootstrap is ok
1440 yes:$build:$build:yes)
1441 ;;
1442
1443 # Other configurations, but we have a compiler. Assume the user knows
1444 # what he's doing.
1445 yes:*:*:yes)
1446 AC_MSG_WARN([trying to bootstrap a cross compiler])
1447 ;;
1448
1449 # No compiler: if they passed --enable-bootstrap explicitly, fail
1450 no:*:*:yes)
1451 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1452
1453 # Fail if wrong command line
1454 *)
1455 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1456 ;;
1457esac
1458
5329b59a 1459# When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
ffac9597
JM		 1460# C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1461# require C++11 (or higher).
46070488 1462if test "$enable_bootstrap:$GXX" = "yes:yes"; then
5329b59a 1463 CXX="$CXX -std=c++11"
ffac9597
JM		 1464elif test "$have_compiler" = yes; then
1465 AX_CXX_COMPILE_STDCXX(11)
7ffcf5d6
TB		 1466
1467 if test "${build}" != "${host}"; then
1468 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1469 fi
46070488
JM		 1470fi
1471
4a5e71f2
L		 1472AC_ARG_ENABLE([pgo-build],
1473[AS_HELP_STRING([--enable-pgo-build[[=lto]]],
1474 [enable the PGO build])],
1475[enable_pgo_build=$enableval],
1476[enable_pgo_build=no])
1477
1478# Issue errors and warnings for invalid/strange PGO build combinations.
1479case "$have_compiler:$host:$target:$enable_pgo_build" in
1480 *:*:*:no) ;;
1481
1482 # Allow the PGO build only if we aren't building a compiler and
1483 # we are in a native configuration.
1484 no:$build:$build:yes | no:$build:$build:lto) ;;
1485
1486 # Disallow the PGO bootstrap if we are building a compiler.
1487 yes:*:*:yes | yes:*:*:lto)
1488 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
1489
1490 *)
1491 AC_MSG_ERROR([invalid option for --enable-pgo-build])
1492 ;;
1493esac
1494
1495if test "$enable_pgo_build" != "no"; then
1496 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
1497 old_CFLAGS="$CFLAGS"
1498 PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
1499 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
1500 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1501 [PGO_BUILD_GEN_CFLAGS=])
1502 CFLAGS="$old_CFLAGS"
1503 if test -n "$PGO_BUILD_GEN_CFLAGS"; then
1504 AC_MSG_RESULT([yes])
1505 PGO_BUILD_USE_CFLAGS="-fprofile-use"
1506 else
1507 AC_MSG_RESULT([no])
1508 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
1509 fi
1510
1511 if test "$enable_pgo_build" = "lto"; then
1512 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
1513 old_CFLAGS="$CFLAGS"
1514 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
1515 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
1516 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1517 [PGO_BUILD_LTO_CFLAGS=])
1518 CFLAGS="$old_CFLAGS"
1519 if test -n "$PGO_BUILD_LTO_CFLAGS"; then
1520 AC_MSG_RESULT([yes])
1521 else
1522 AC_MSG_RESULT([no])
1523 AC_MSG_WARN([LTO is disabled for the PGO build])
1524 fi
1525 fi
1526fi
1527AC_SUBST(PGO_BUILD_GEN_CFLAGS)
1528AC_SUBST(PGO_BUILD_USE_CFLAGS)
1529AC_SUBST(PGO_BUILD_LTO_CFLAGS)
1530
592c90ff
KG		 1531# Used for setting $lt_cv_objdir
1532_LT_CHECK_OBJDIR
1533
acd26225 1534# Check for GMP, MPFR and MPC
91e0d220
AP		 1535require_gmp=no
1536require_mpc=no
1537if test -d ${srcdir}/gcc ; then
1538 require_gmp=yes
1539 require_mpc=yes
1540fi
1541if test -d ${srcdir}/gdb ; then
5977d14a
CC		 1542 if test "x$enable_gdb" != xno; then
1543 require_gmp=yes
1544 fi
91e0d220
AP		 1545fi
1546
1547gmplibs="-lmpfr -lgmp"
1548if test x"$require_mpc" = "xyes" ; then
1549 gmplibs="-lmpc $gmplibs"
1550fi
6de9cd9a 1551gmpinc=
e69bf64b 1552have_gmp=no
acd26225
KG		 1553
1554# Specify a location for mpc
1555# check for this first so it ends up on the link line before mpfr.
33e39b66
AS		 1556AC_ARG_WITH(mpc,
1557[AS_HELP_STRING([--with-mpc=PATH],
1558 [specify prefix directory for installed MPC package.
1559 Equivalent to --with-mpc-include=PATH/include
1560 plus --with-mpc-lib=PATH/lib])])
1561AC_ARG_WITH(mpc-include,
1562[AS_HELP_STRING([--with-mpc-include=PATH],
1563 [specify directory for installed MPC include files])])
1564AC_ARG_WITH(mpc-lib,
1565[AS_HELP_STRING([--with-mpc-lib=PATH],
1566 [specify directory for the installed MPC library])])
acd26225
KG		 1567
1568if test "x$with_mpc" != x; then
3a5729ea
KG		 1569 gmplibs="-L$with_mpc/lib $gmplibs"
1570 gmpinc="-I$with_mpc/include $gmpinc"
acd26225
KG		 1571fi
1572if test "x$with_mpc_include" != x; then
3a5729ea 1573 gmpinc="-I$with_mpc_include $gmpinc"
acd26225
KG		 1574fi
1575if test "x$with_mpc_lib" != x; then
3a5729ea 1576 gmplibs="-L$with_mpc_lib $gmplibs"
acd26225
KG		 1577fi
1578if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
592c90ff 1579 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
3a5729ea 1580 gmpinc='-I$$s/mpc/src '"$gmpinc"
acd26225
KG		 1581 # Do not test the mpc version. Assume that it is sufficient, since
1582 # it is in the source tree, and the library has not been built yet
1583 # but it would be included on the link line in the version check below
1584 # hence making the test fail.
3a5729ea 1585 have_gmp=yes
acd26225 1586fi
e69bf64b 1587
bebf829d
PB		 1588# Specify a location for mpfr
1589# check for this first so it ends up on the link line before gmp.
33e39b66
AS		 1590AC_ARG_WITH(mpfr,
1591[AS_HELP_STRING([--with-mpfr=PATH],
1592 [specify prefix directory for installed MPFR package.
1593 Equivalent to --with-mpfr-include=PATH/include
1594 plus --with-mpfr-lib=PATH/lib])])
1595AC_ARG_WITH(mpfr-include,
1596[AS_HELP_STRING([--with-mpfr-include=PATH],
1597 [specify directory for installed MPFR include files])])
1598AC_ARG_WITH(mpfr-lib,
1599[AS_HELP_STRING([--with-mpfr-lib=PATH],
1600 [specify directory for the installed MPFR library])])
bebf829d
PB		 1601
1602if test "x$with_mpfr" != x; then
1603 gmplibs="-L$with_mpfr/lib $gmplibs"
3a5729ea 1604 gmpinc="-I$with_mpfr/include $gmpinc"
bebf829d 1605fi
8a877c9c 1606if test "x$with_mpfr_include" != x; then
3a5729ea 1607 gmpinc="-I$with_mpfr_include $gmpinc"
8a877c9c
KG		 1608fi
1609if test "x$with_mpfr_lib" != x; then
1610 gmplibs="-L$with_mpfr_lib $gmplibs"
1611fi
e69bf64b 1612if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
8f3675f8
MR		 1613 # MPFR v3.1.0 moved the sources into a src sub-directory.
1614 if ! test -d ${srcdir}/mpfr/src; then
1615 AC_MSG_ERROR([dnl
1616Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1617 fi
00f35794
BE		 1618 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1619 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1620 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
e69bf64b
PB		 1621 # Do not test the mpfr version. Assume that it is sufficient, since
1622 # it is in the source tree, and the library has not been built yet
1623 # but it would be included on the link line in the version check below
1624 # hence making the test fail.
1625 have_gmp=yes
1626fi
bebf829d 1627
6de9cd9a 1628# Specify a location for gmp
33e39b66
AS		 1629AC_ARG_WITH(gmp,
1630[AS_HELP_STRING([--with-gmp=PATH],
1631 [specify prefix directory for the installed GMP package.
1632 Equivalent to --with-gmp-include=PATH/include
1633 plus --with-gmp-lib=PATH/lib])])
1634AC_ARG_WITH(gmp-include,
1635[AS_HELP_STRING([--with-gmp-include=PATH],
1636 [specify directory for installed GMP include files])])
1637AC_ARG_WITH(gmp-lib,
1638[AS_HELP_STRING([--with-gmp-lib=PATH],
1639 [specify directory for the installed GMP library])])
6de9cd9a 1640
6de9cd9a 1641
bebf829d
PB		 1642if test "x$with_gmp" != x; then
1643 gmplibs="-L$with_gmp/lib $gmplibs"
1644 gmpinc="-I$with_gmp/include $gmpinc"
6de9cd9a 1645fi
8a877c9c
KG		 1646if test "x$with_gmp_include" != x; then
1647 gmpinc="-I$with_gmp_include $gmpinc"
1648fi
1649if test "x$with_gmp_lib" != x; then
1650 gmplibs="-L$with_gmp_lib $gmplibs"
1651fi
e69bf64b 1652if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
592c90ff 1653 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
e69bf64b 1654 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
9183bdcf 1655 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
592c90ff 1656 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
0ff2d841 1657 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
e69bf64b
PB		 1658 # Do not test the gmp version. Assume that it is sufficient, since
1659 # it is in the source tree, and the library has not been built yet
1660 # but it would be included on the link line in the version check below
1661 # hence making the test fail.
1662 have_gmp=yes
1663fi
6de9cd9a 1664
91e0d220 1665if test "x$require_gmp" = xyes && test "x$have_gmp" = xno; then
e69bf64b
PB		 1666 have_gmp=yes
1667 saved_CFLAGS="$CFLAGS"
1668 CFLAGS="$CFLAGS $gmpinc"
362c6d2f
KG		 1669 # Check for the recommended and required versions of GMP.
1670 AC_MSG_CHECKING([for the correct version of gmp.h])
e69bf64b 1671 AC_TRY_COMPILE([#include "gmp.h"],[
362c6d2f
KG		 1672 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1673 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
385c0681 1674 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
e48d66a9 1675 choke me
e69bf64b 1676 #endif
e8fd69bb 1677 ], [AC_TRY_COMPILE([#include <gmp.h>],[
362c6d2f
KG		 1678 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1679 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1680 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1681 choke me
1682 #endif
e8fd69bb 1683 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1684 [AC_MSG_RESULT([no]); have_gmp=no])
e69bf64b 1685
acd26225 1686 # If we have GMP, check the MPFR version.
e69bf64b 1687 if test x"$have_gmp" = xyes; then
362c6d2f
KG		 1688 # Check for the recommended and required versions of MPFR.
1689 AC_MSG_CHECKING([for the correct version of mpfr.h])
acd26225 1690 AC_TRY_COMPILE([#include <gmp.h>
e69bf64b 1691 #include <mpfr.h>],[
8be34204 1692 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
e69bf64b
PB		 1693 choke me
1694 #endif
e8fd69bb 1695 ], [AC_TRY_COMPILE([#include <gmp.h>
acd26225 1696 #include <mpfr.h>],[
8be34204 1697 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
acd26225
KG		 1698 choke me
1699 #endif
e8fd69bb 1700 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
acd26225
KG		 1701 [AC_MSG_RESULT([no]); have_gmp=no])
1702 fi
1703
1704 # Check for the MPC header version.
91e0d220 1705 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes ; then
362c6d2f 1706 # Check for the recommended and required versions of MPC.
acd26225
KG		 1707 AC_MSG_CHECKING([for the correct version of mpc.h])
1708 AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f 1709 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
acd26225
KG		 1710 choke me
1711 #endif
e8fd69bb 1712 ], [AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f
KG		 1713 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1714 choke me
1715 #endif
e8fd69bb 1716 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1717 [AC_MSG_RESULT([no]); have_gmp=no])
acd26225
KG		 1718 fi
1719
1720 # Now check the MPFR library.
1721 if test x"$have_gmp" = xyes; then
1722 saved_LIBS="$LIBS"
1723 LIBS="$LIBS $gmplibs"
91e0d220
AP		 1724 AC_MSG_CHECKING([for the correct version of the gmp/mpfr libraries])
1725 AC_TRY_LINK([#include <mpfr.h>],[
54e433bc
MK		 1726 mpfr_t n;
1727 mpfr_t x;
e69bf64b 1728 int t;
54e433bc
MK		 1729 mpfr_init (n);
1730 mpfr_init (x);
90ca6847
TB		 1731 mpfr_atan2 (n, n, x, MPFR_RNDN);
1732 mpfr_erfc (n, x, MPFR_RNDN);
1733 mpfr_subnormalize (x, t, MPFR_RNDN);
3a5729ea
KG		 1734 mpfr_clear(n);
1735 mpfr_clear(x);
91e0d220
AP		 1736 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1737 LIBS="$saved_LIBS"
1738 fi
1739
1740 # Now check the MPC library
1741 if test "x$require_mpc" = xyes && test x"$have_gmp" = xyes; then
1742 saved_LIBS="$LIBS"
1743 LIBS="$LIBS $gmplibs"
1744 AC_MSG_CHECKING([for the correct version of the mpc libraries])
1745 AC_TRY_LINK([#include <mpc.h>],[
1746 mpc_t c;
3a5729ea
KG		 1747 mpc_init2 (c, 53);
1748 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1749 mpc_cosh (c, c, MPC_RNDNN);
1750 mpc_pow (c, c, c, MPC_RNDNN);
1751 mpc_acosh (c, c, MPC_RNDNN);
1752 mpc_clear (c);
acd26225
KG		 1753 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1754 LIBS="$saved_LIBS"
e69bf64b 1755 fi
acd26225 1756
e69bf64b 1757 CFLAGS="$saved_CFLAGS"
6de9cd9a 1758
362c6d2f
KG		 1759# The library versions listed in the error message below should match
1760# the HARD-minimums enforced above.
e69bf64b 1761 if test x$have_gmp != xyes; then
91e0d220
AP		 1762 if test -d ${srcdir}/gcc ; then
1763 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
3a5729ea
KG		 1764Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1765their locations. Source code for these libraries can be found at
1766their respective hosting sites as well as at
aeebd94c 1767https://gcc.gnu.org/pub/gcc/infrastructure/. See also
45ab87d4 1768http://gcc.gnu.org/install/prerequisites.html for additional info. If
3a5729ea
KG		 1769you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1770make sure that you have installed both the libraries and the header
1771files. They may be located in separate packages.])
91e0d220
AP		 1772 else
1773 AC_MSG_ERROR([Building GDB requires GMP 4.2+, and MPFR 3.1.0+.
1774Try the --with-gmp and/or --with-mpfr options to specify
1775their locations. If you obtained GMP and/or MPFR from a vendor
1776distribution package, make sure that you have installed both the libraries
1777and the header files. They may be located in separate packages.])
1778 fi
e69bf64b 1779 fi
70ec446f
KG		 1780fi
1781
acd26225 1782# Flags needed for both GMP, MPFR and/or MPC.
6de9cd9a
DN		 1783AC_SUBST(gmplibs)
1784AC_SUBST(gmpinc)
9e3eba15 1785AC_SUBST(extra_mpfr_configure_flags)
acd26225
KG		 1786AC_SUBST(extra_mpc_gmp_configure_flags)
1787AC_SUBST(extra_mpc_mpfr_configure_flags)
0ff2d841 1788AC_SUBST(extra_isl_gmp_configure_flags)
6de9cd9a 1789
00020c16
ILT		 1790# Libraries to use for stage1 or when not bootstrapping.
1791AC_ARG_WITH(stage1-libs,
33e39b66 1792[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
00020c16
ILT		 1793[if test "$withval" = "no" -o "$withval" = "yes"; then
1794 stage1_libs=
1795 else
1796 stage1_libs=$withval
1797 fi],
5dc85f7e 1798[stage1_libs=])
00020c16
ILT		 1799AC_SUBST(stage1_libs)
1800
aac9103b
TT		 1801# Whether or not to use -static-libstdc++ and -static-libgcc. The
1802# default is yes if gcc is being built; no otherwise. The reason for
1803# this default is that gdb is sometimes linked against GNU Source
1804# Highlight, which is a shared library that uses C++ exceptions. In
1805# this case, -static-libstdc++ will cause crashes.
1806AC_ARG_WITH(static-standard-libraries,
1807[AS_HELP_STRING([--with-static-standard-libraries],
1808 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1809[], [with_static_standard_libraries=auto])
1810if test "$with_static_standard_libraries" = auto; then
1811 with_static_standard_libraries=$have_compiler
1812fi
1813
0b21f5d3
EB		 1814# Linker flags to use for stage1 or when not bootstrapping.
1815AC_ARG_WITH(stage1-ldflags,
1816[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1817[if test "$withval" = "no" -o "$withval" = "yes"; then
1818 stage1_ldflags=
1819 else
1820 stage1_ldflags=$withval
1821 fi],
1822[stage1_ldflags=
1823 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1824 # if supported. But if the user explicitly specified the libraries to use,
1825 # trust that they are doing what they want.
aac9103b
TT		 1826 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1827 -a "$have_static_libs" = yes; then
0b21f5d3
EB		 1828 stage1_ldflags="-static-libstdc++ -static-libgcc"
1829 fi])
1830AC_SUBST(stage1_ldflags)
1831
5dc85f7e 1832# Libraries to use for stage2 and later builds.
00020c16 1833AC_ARG_WITH(boot-libs,
33e39b66 1834[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
00020c16
ILT		 1835[if test "$withval" = "no" -o "$withval" = "yes"; then
1836 poststage1_libs=
1837 else
e90e6bd7 1838 poststage1_libs=$withval
00020c16 1839 fi],
5dc85f7e 1840[poststage1_libs=])
00020c16
ILT		 1841AC_SUBST(poststage1_libs)
1842
ed2eaa9f
ILT		 1843# Linker flags to use for stage2 and later builds.
1844AC_ARG_WITH(boot-ldflags,
33e39b66
AS		 1845[AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1846 [linker flags for stage2 and later])],
ed2eaa9f
ILT		 1847[if test "$withval" = "no" -o "$withval" = "yes"; then
1848 poststage1_ldflags=
1849 else
1850 poststage1_ldflags=$withval
1851 fi],
1852[poststage1_ldflags=
bec93d73
ILT		 1853 # In stages 2 and 3, default to linking libstdc++ and libgcc
1854 # statically. But if the user explicitly specified the libraries to
1855 # use, trust that they are doing what they want.
1856 if test "$poststage1_libs" = ""; then
ed2eaa9f
ILT		 1857 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1858 fi])
6a6d3817
IS		 1859case $target in
1860 *-darwin2* | *-darwin1[[56789]]*)
1861 # For these versions, we default to using embedded rpaths.
1862 if test "x$enable_darwin_at_rpath" != "xno"; then
1863 poststage1_ldflags="$poststage1_ldflags -nodefaultrpaths"
1864 fi
1865 ;;
1866 *-darwin*)
1867 # For these versions, we only use embedded rpaths on demand.
1868 if test "x$enable_darwin_at_rpath" = "xyes"; then
1869 poststage1_ldflags="$poststage1_ldflags -nodefaultrpaths"
1870 fi
1871 ;;
1872esac
ed2eaa9f
ILT		 1873AC_SUBST(poststage1_ldflags)
1874
e357a5e0 1875# GCC GRAPHITE dependency isl.
4a9bb2aa 1876# Basic setup is inlined here, actual checks are in config/isl.m4
625afa23 1877
625afa23
RG		 1878AC_ARG_WITH(isl,
1879 [AS_HELP_STRING(
1880 [--with-isl=PATH],
e357a5e0 1881 [Specify prefix directory for the installed isl package.
625afa23
RG		 1882 Equivalent to --with-isl-include=PATH/include
1883 plus --with-isl-lib=PATH/lib])])
1884
eae1a5d4 1885# Treat --without-isl as a request to disable
625afa23 1886# GRAPHITE support and skip all following checks.
eae1a5d4 1887if test "x$with_isl" != "xno"; then
e357a5e0 1888 # Check for isl
625afa23
RG		 1889 dnl Provide configure switches and initialize islinc & isllibs
1890 dnl with user input.
1891 ISL_INIT_FLAGS
e357a5e0 1892 dnl The versions of isl that work for Graphite
e0c0c325 1893 ISL_CHECK_VERSION()
e357a5e0 1894 dnl Only execute fail-action, if isl has been requested.
33ad93b9 1895 ISL_IF_FAILED([
e357a5e0 1896 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
f8bf9252 1897fi
f8bf9252 1898
e357a5e0 1899# If the isl check failed, disable builds of in-tree variant of isl
625afa23 1900if test "x$with_isl" = xno ||
625afa23 1901 test "x$gcc_cv_isl" = xno; then
4a9bb2aa 1902 noconfigdirs="$noconfigdirs isl"
625afa23 1903 islinc=
eae1a5d4
RG		 1904fi
1905
1906AC_SUBST(isllibs)
625afa23 1907AC_SUBST(islinc)
625afa23 1908
d7f09764
DN		 1909# Check for LTO support.
1910AC_ARG_ENABLE(lto,
33e39b66 1911[AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
d7f09764
DN		 1912enable_lto=$enableval,
1913enable_lto=yes; default_enable_lto=yes)
1914
48215350
DK		 1915ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1916 build_lto_plugin=yes
1917],[if test x"$default_enable_lto" = x"yes" ; then
bb79486c 1918 case $target in
deeba76a 1919 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
48215350 1920 # On other non-ELF platforms, LTO has yet to be validated.
bb79486c
JH		 1921 *) enable_lto=no ;;
1922 esac
3bec79c5 1923 else
db50fe7d
IS		 1924 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1925 # It would also be nice to check the binutils support, but we don't
3bec79c5
DK		 1926 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1927 # warn during gcc/ subconfigure; unless you're bootstrapping with
1928 # -flto it won't be needed until after installation anyway.
1929 case $target in
9e530bcd 1930 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
3bec79c5
DK		 1931 *) if test x"$enable_lto" = x"yes"; then
1932 AC_MSG_ERROR([LTO support is not enabled for this target.])
1933 fi
1934 ;;
1935 esac
1936 fi
1cd0b716 1937 # Among non-ELF, only Windows platforms support the lto-plugin so far.
48215350 1938 # Build it unless LTO was explicitly disabled.
1cd0b716 1939 case $target in
48215350 1940 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1cd0b716
DK		 1941 *) ;;
1942 esac
48215350 1943])
d7f09764 1944
45b3824d
TS		 1945AC_ARG_ENABLE(linker-plugin-configure-flags,
1946 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1947 [additional flags for configuring linker plugins @<:@none@:>@])],
1948 extra_linker_plugin_configure_flags=$enableval,
1949 extra_linker_plugin_configure_flags=)
1950AC_SUBST(extra_linker_plugin_configure_flags)
1951AC_ARG_ENABLE(linker-plugin-flags,
1952 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1953 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1954 extra_linker_plugin_flags=$enableval,
1955 extra_linker_plugin_flags=)
1956AC_SUBST(extra_linker_plugin_flags)
1957
c1fecabe
IS		 1958# Handle --enable-host-pie
1959# If host PIE executables are the default (or must be forced on) for some host,
1960# we must pass that configuration to the gcc directory.
1961gcc_host_pie=
b6cb10af
MP		 1962AC_ARG_ENABLE(host-pie,
1963[AS_HELP_STRING([--enable-host-pie],
1964 [build position independent host executables])],
1965[host_pie=$enableval
1966 case $host in
c1fecabe 1967 *-*-darwin2*)
b6cb10af 1968 if test x$host_pie != xyes ; then
c1fecabe
IS		 1969 # for Darwin20+ this is required.
1970 AC_MSG_WARN([PIE executables are required for the configured host, host-pie setting ignored.])
b6cb10af 1971 host_pie=yes
c1fecabe 1972 gcc_host_pie=--enable-host-pie
b6cb10af
MP		 1973 fi ;;
1974 *) ;;
1975 esac],
1976[case $host in
c1fecabe
IS		 1977 *-*-darwin2*)
1978 # Default to PIE (mandatory for aarch64).
1979 host_pie=yes
1980 gcc_host_pie=--enable-host-pie
1981 ;;
b6cb10af
MP		 1982 *) host_pie=no ;;
1983 esac])
1984
1985AC_SUBST(host_pie)
c1fecabe 1986AC_SUBST(gcc_host_pie)
b6cb10af 1987
cdfee50a
NS		 1988# Enable --enable-host-shared.
1989# Checked early to determine whether jit is an 'all' language
1990AC_ARG_ENABLE(host-shared,
1991[AS_HELP_STRING([--enable-host-shared],
1992 [build host code as shared libraries])],
a1d2b162 1993[host_shared=$enableval
1edfc8f2 1994 case $host in
a1d2b162
IS		 1995 x86_64-*-darwin* | aarch64-*-darwin*)
1996 if test x$host_shared != xyes ; then
1997 # PIC is the default, and actually cannot be switched off.
c1fecabe 1998 AC_MSG_WARN([PIC code is required for the configured host; host-shared setting ignored.])
a1d2b162
IS		 1999 host_shared=yes
2000 fi ;;
b6cb10af 2001 *-*-darwin*)
c1fecabe
IS		 2002 if test x$host_pie = xyes -a x$host_shared != xyes ; then
2003 AC_MSG_WARN([PIC code is required for PIE host executables host-shared setting ignored.])
b6cb10af
MP		 2004 host_shared=yes
2005 fi ;;
a1d2b162
IS		 2006 *) ;;
2007 esac],
1edfc8f2 2008[case $host in
c1fecabe 2009 # 64B x86_64 and Aarch64 Darwin default to PIC.
a1d2b162 2010 x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
c1fecabe
IS		 2011 # 32B and powerpc64 Darwin must use PIC to link PIE exes.
2012 *-*-darwin*) host_shared=$host_pie ;;
b6cb10af 2013 *) host_shared=no;;
a1d2b162 2014 esac])
05048fc2 2015
cdfee50a 2016AC_SUBST(host_shared)
f8bf9252 2017
b6cb10af 2018if test x$host_shared = xyes; then
c1fecabe
IS		 2019 case $host in
2020 *-*-darwin*)
2021 # Since host shared is the default for 64b Darwin, and also enabled for
2022 # host_pie, ensure that we present the PIE flag when host_pie is active.
2023 if test x$host_pie = xyes; then
2024 PICFLAG=-fPIE
2025 fi
2026 ;;
2027 *)
2028 PICFLAG=-fPIC
2029 ;;
2030 esac
b6cb10af
MP		 2031elif test x$host_pie = xyes; then
2032 PICFLAG=-fPIE
2033else
2034 PICFLAG=
2035fi
2036
2037AC_SUBST(PICFLAG)
2038
05048fc2
IS		 2039# If we are building PIC/PIE host executables, and we are building dependent
2040# libs (e.g. GMP) in-tree those libs need to be configured to generate PIC
2041# code.
2042host_libs_picflag=
b6cb10af 2043if test "$host_shared" = "yes" -o "$host_pie" = "yes"; then
05048fc2
IS		 2044host_libs_picflag='--with-pic'
2045fi
2046AC_SUBST(host_libs_picflag)
2047
0823efed 2048# By default, C and C++ are the only stage 1 languages.
e1888513 2049stage1_languages=,c,
2805b53a 2050
00020c16 2051# Target libraries that we bootstrap.
ad1e5170 2052bootstrap_target_libs=,target-libgcc,
00020c16 2053
e4c9c075
PB		 2054# Figure out what language subdirectories are present.
2055# Look if the user specified --enable-languages="..."; if not, use
2056# the environment variable $LANGUAGES if defined. $LANGUAGES might
2057# go away some day.
2058# NB: embedded tabs in this IF block -- do not untabify
2059if test -d ${srcdir}/gcc; then
2060 if test x"${enable_languages+set}" != xset; then
2061 if test x"${LANGUAGES+set}" = xset; then
2062 enable_languages="${LANGUAGES}"
6b1786aa 2063 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
e4c9c075 2064 else
cdfee50a 2065 enable_languages=default
e4c9c075
PB		 2066 fi
2067 else
2068 if test x"${enable_languages}" = x ||
2069 test x"${enable_languages}" = xyes;
2070 then
6b1786aa 2071 echo configure.ac: --enable-languages needs at least one language argument 1>&2
e4c9c075
PB		 2072 exit 1
2073 fi
2074 fi
2075 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2076
7f26dfa3
FXC		 2077 # 'f95' is the old name for the 'fortran' language. We issue a warning
2078 # and make the substitution.
2079 case ,${enable_languages}, in
2080 *,f95,*)
6b1786aa 2081 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
7f26dfa3
FXC		 2082 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
2083 ;;
2084 esac
2085
0823efed
DN		 2086 # If bootstrapping, C++ must be enabled.
2087 case ",$enable_languages,:$enable_bootstrap" in
2088 *,c++,*:*) ;;
2089 *:yes)
ff3ac0f4
ILT		 2090 if test -f ${srcdir}/gcc/cp/config-lang.in; then
2091 enable_languages="${enable_languages},c++"
2092 else
0823efed 2093 AC_MSG_ERROR([bootstrapping requires c++ sources])
ff3ac0f4
ILT		 2094 fi
2095 ;;
2096 esac
2097
e4c9c075
PB		 2098 # First scan to see if an enabled language requires some other language.
2099 # We assume that a given config-lang.in will list all the language
2100 # front ends it requires, even if some are required indirectly.
2101 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2102 case ${lang_frag} in
2103 ..) ;;
2104 # The odd quoting in the next line works around
2105 # an apparent bug in bash 1.12 on linux.
2106 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2107 *)
69ecd18f
ILT		 2108 # From the config-lang.in, get $language, $lang_requires, and
2109 # $lang_requires_boot_languages.
e4c9c075
PB		 2110 language=
2111 lang_requires=
69ecd18f 2112 lang_requires_boot_languages=
d4360477
NS		 2113 # set srcdir during sourcing lang_frag to the gcc dir.
2114 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
2115 # polutes this shell
2116 saved_srcdir=${srcdir}
2117 srcdir=${srcdir}/gcc . ${lang_frag}
2118 srcdir=${saved_srcdir}
69ecd18f 2119 for other in ${lang_requires} ${lang_requires_boot_languages}; do
e4c9c075
PB		 2120 case ,${enable_languages}, in
2121 *,$other,*) ;;
cdfee50a 2122 *,default,*) ;;
e4c9c075
PB		 2123 *,all,*) ;;
2124 *,$language,*)
2125 echo " \`$other' language required by \`$language'; enabling" 1>&2
2126 enable_languages="${enable_languages},${other}"
2127 ;;
2128 esac
2129 done
69ecd18f
ILT		 2130 for other in ${lang_requires_boot_languages} ; do
2131 if test "$other" != "c"; then
2132 case ,${enable_stage1_languages}, in
2133 *,$other,*) ;;
cdfee50a 2134 *,default,*) ;;
69ecd18f
ILT		 2135 *,all,*) ;;
2136 *)
2137 case ,${enable_languages}, in
2138 *,$language,*)
2139 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
2140 enable_stage1_languages="$enable_stage1_languages,${other}"
2141 ;;
2142 esac
2143 ;;
2144 esac
2145 fi
2146 done
e4c9c075
PB		 2147 ;;
2148 esac
2149 done
2150
e1888513 2151 new_enable_languages=,c,
d7f09764
DN		 2152
2153 # If LTO is enabled, add the LTO front end.
d7f09764 2154 if test "$enable_lto" = "yes" ; then
e4c5bd48
RW		 2155 case ,${enable_languages}, in
2156 *,lto,*) ;;
2157 *) enable_languages="${enable_languages},lto" ;;
2158 esac
1cd0b716 2159 if test "${build_lto_plugin}" = "yes" ; then
d7f09764 2160 configdirs="$configdirs lto-plugin"
d7f09764
DN		 2161 fi
2162 fi
d7f09764 2163
426c1eb0
TS		 2164 # If we're building an offloading compiler, add the LTO front end.
2165 if test x"$enable_as_accelerator_for" != x ; then
2166 case ,${enable_languages}, in
2167 *,lto,*) ;;
2168 *) enable_languages="${enable_languages},lto" ;;
2169 esac
2170 fi
2171
cdfee50a 2172 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
e1888513 2173 potential_languages=,c,
e4c9c075 2174
4da3b0f8
ILT		 2175 enabled_target_libs=
2176 disabled_target_libs=
2177
e4c9c075
PB		 2178 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2179 case ${lang_frag} in
2180 ..) ;;
2181 # The odd quoting in the next line works around
2182 # an apparent bug in bash 1.12 on linux.
2183 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2184 *)
2185 # From the config-lang.in, get $language, $target_libs,
2805b53a 2186 # $lang_dirs, $boot_language, and $build_by_default
e4c9c075
PB		 2187 language=
2188 target_libs=
2189 lang_dirs=
1546bb64 2190 subdir_requires=
e1888513
PB		 2191 boot_language=no
2192 build_by_default=yes
d4360477
NS		 2193 # set srcdir during sourcing. See above about save & restore
2194 saved_srcdir=${srcdir}
2195 srcdir=${srcdir}/gcc . ${lang_frag}
2196 srcdir=${saved_srcdir}
e1888513
PB		 2197 if test x${language} = x; then
2198 echo "${lang_frag} doesn't set \$language." 1>&2
2199 exit 1
2200 fi
2201
78767fd9 2202 if test "$language" = "c++"; then
0823efed 2203 boot_language=yes
00020c16
ILT		 2204 fi
2205
178f875a 2206 add_this_lang=no
cdfee50a
NS		 2207 # C is always enabled, so no need to add it again
2208 if test "$language" != "c"; then
2209 case ,${enable_languages}, in
2210 *,${language},*)
2211 # Language was explicitly selected; include it
d4a10d0a 2212 add_this_lang=yes
cdfee50a
NS		 2213 ;;
2214 *,all,*)
2215 # All languages are enabled
2216 add_this_lang=all
2217 ;;
2218 *,default,*)
2219 # 'default' was selected, select it if it is a default language
178f875a 2220 add_this_lang=${build_by_default}
cdfee50a
NS		 2221 ;;
2222 esac
2223 fi
6de9cd9a 2224
1546bb64 2225 # Disable languages that need other directories if these aren't available.
95695ad3 2226 for i in $subdir_requires; do
b6348cb3 2227 test -f "$srcdir/gcc/$i/config-lang.in" && continue
cdfee50a
NS		 2228 case ${add_this_lang} in
2229 yes)
1546bb64
PB		 2230 # Specifically requested language; tell them.
2231 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2232 ;;
cdfee50a
NS		 2233 all)
2234 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2235 add_this_lang=unsupported
2236 ;;
1546bb64
PB		 2237 *)
2238 # Silently disable.
e1888513 2239 add_this_lang=unsupported
1546bb64
PB		 2240 ;;
2241 esac
2242 done
2243
e1888513 2244 # Disable Ada if no preexisting GNAT is available.
cdfee50a
NS		 2245 case ${add_this_lang}:${language}:${have_gnat} in
2246 yes:ada:no)
e1888513
PB		 2247 # Specifically requested language; tell them.
2248 AC_MSG_ERROR([GNAT is required to build $language])
2249 ;;
cdfee50a
NS		 2250 all:ada:no)
2251 AC_MSG_WARN([GNAT is required to build $language])
2252 add_this_lang=unsupported
2253 ;;
e1888513
PB		 2254 *:ada:no)
2255 # Silently disable.
2256 add_this_lang=unsupported
2257 ;;
2258 esac
2259
5fee5ec3
IB		 2260 # Disable D if no preexisting GDC is available.
2261 case ${add_this_lang}:${language}:${have_gdc} in
2262 yes:d:no)
2263 # Specifically requested language; tell them.
2264 AC_MSG_ERROR([GDC is required to build $language])
2265 ;;
2266 all:d:no)
2267 AC_MSG_WARN([GDC is required to build $language])
2268 add_this_lang=unsupported
2269 ;;
2270 *:d:no)
2271 # Silently disable.
2272 add_this_lang=unsupported
2273 ;;
2274 esac
2275
cdfee50a 2276 # Disable jit if -enable-host-shared not specified
c83027f3
NB		 2277 # but not if building for Mingw. All code in Windows
2278 # is position independent code (PIC).
2279 case $target in
2280 *mingw*) ;;
2281 *)
2282 case ${add_this_lang}:${language}:${host_shared} in
2283 yes:jit:no)
2284 # PR jit/64780: explicitly specify --enable-host-shared
cdfee50a
NS		 2285 AC_MSG_ERROR([
2286Enabling language "jit" requires --enable-host-shared.
2287
2288--enable-host-shared typically slows the rest of the compiler down by
2289a few %, so you must explicitly enable it.
2290
2291If you want to build both the jit and the regular compiler, it is often
2292best to do this via two separate configure/builds, in separate
2293directories, to avoid imposing the performance cost of
2294--enable-host-shared on the regular compiler.])
c83027f3
NB		 2295 ;;
2296 all:jit:no)
2297 AC_MSG_WARN([--enable-host-shared required to build $language])
2298 add_this_lang=unsupported
2299 ;;
2300 *:jit:no)
2301 # Silently disable.
2302 add_this_lang=unsupported
2303 ;;
2304 esac
2305 ;;
2306 esac
cdfee50a
NS		 2307
2308 # Disable a language that is unsupported by the target.
2309 case "${add_this_lang}: $unsupported_languages " in
2310 no:*) ;;
2311 unsupported:*) ;;
2312 *:*" $language "*)
2313 AC_MSG_WARN([${language} not supported for this target])
e1888513 2314 add_this_lang=unsupported
4fab7234
HPN		 2315 ;;
2316 esac
2317
6de9cd9a 2318 case $add_this_lang in
e1888513 2319 unsupported)
e4c9c075 2320 # Remove language-dependent dirs.
4da3b0f8
ILT		 2321 disabled_target_libs="$disabled_target_libs $target_libs"
2322 noconfigdirs="$noconfigdirs $lang_dirs"
2805b53a 2323 ;;
e1888513
PB		 2324 no)
2325 # Remove language-dependent dirs; still show language as supported.
4da3b0f8
ILT		 2326 disabled_target_libs="$disabled_target_libs $target_libs"
2327 noconfigdirs="$noconfigdirs $lang_dirs"
e1888513
PB		 2328 potential_languages="${potential_languages}${language},"
2329 ;;
cdfee50a 2330 all|yes)
e1888513
PB		 2331 new_enable_languages="${new_enable_languages}${language},"
2332 potential_languages="${potential_languages}${language},"
2805b53a 2333 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
4da3b0f8 2334 enabled_target_libs="$enabled_target_libs $target_libs"
ab9dcd0c
RW		 2335 case "${boot_language}:,$enable_stage1_languages," in
2336 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
340de83f 2337 # Add to (comma-separated) list of stage 1 languages.
ab9dcd0c
RW		 2338 case ",$stage1_languages," in
2339 *,$language,* | ,yes, | ,all,) ;;
2340 *) stage1_languages="${stage1_languages}${language}," ;;
2341 esac
00020c16 2342 # We need to bootstrap any supporting libraries.
5fee5ec3 2343 bootstrap_target_libs=`echo "${bootstrap_target_libs}${target_libs}," | sed "s/ /,/g"`
2805b53a
NN		 2344 ;;
2345 esac
2346 ;;
e4c9c075
PB		 2347 esac
2348 ;;
2349 esac
2350 done
2351
4da3b0f8
ILT		 2352 # Add target libraries which are only needed for disabled languages
2353 # to noconfigdirs.
2354 if test -n "$disabled_target_libs"; then
2355 for dir in $disabled_target_libs; do
2356 case " $enabled_target_libs " in
2357 *" ${dir} "*) ;;
2358 *) noconfigdirs="$noconfigdirs $dir" ;;
2359 esac
2360 done
2361 fi
2362
e1888513 2363 AC_ARG_ENABLE(stage1-languages,
33e39b66
AS		 2364 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2365 [choose additional languages to build during
2366 stage1. Mostly useful for compiler development])],
e1888513
PB		 2367 [case ,${enable_stage1_languages}, in
2368 ,no,|,,)
2369 # Set it to something that will have no effect in the loop below
2370 enable_stage1_languages=c ;;
2371 ,yes,)
2372 enable_stage1_languages=`echo $new_enable_languages | \
2373 sed -e "s/^,//" -e "s/,$//" ` ;;
2374 *,all,*)
2375 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2376 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2377 esac
2378
2379 # Add "good" languages from enable_stage1_languages to stage1_languages,
2380 # while "bad" languages go in missing_languages. Leave no duplicates.
2381 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2382 case $potential_languages in
2383 *,$i,*)
2384 case $stage1_languages in
2385 *,$i,*) ;;
2386 *) stage1_languages="$stage1_languages$i," ;;
2387 esac ;;
2388 *)
2389 case $missing_languages in
2390 *,$i,*) ;;
2391 *) missing_languages="$missing_languages$i," ;;
2392 esac ;;
2393 esac
2394 done])
2395
2396 # Remove leading/trailing commas that were added for simplicity
2397 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
79b4b7d2 2398 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
e1888513
PB		 2399 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2400 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2401
e4c9c075
PB		 2402 if test "x$missing_languages" != x; then
2403 AC_MSG_ERROR([
0cf085e4 2404The following requested languages could not be built: ${missing_languages}
e1888513 2405Supported languages are: ${potential_languages}])
e4c9c075 2406 fi
e4c9c075
PB		 2407 if test "x$new_enable_languages" != "x$enable_languages"; then
2408 echo The following languages will be built: ${new_enable_languages}
e1888513 2409 enable_languages="$new_enable_languages"
e4c9c075 2410 fi
e1888513
PB		 2411
2412 AC_SUBST(stage1_languages)
b2eaac4a 2413 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
e4c9c075
PB		 2414fi
2415
27079765
AH		 2416# Handle --disable-<component> generically.
2417for dir in $configdirs $build_configdirs $target_configdirs ; do
2418 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
ac9e6043
RW		 2419 varname=`echo $dirname | sed -e s/+/_/g`
2420 if eval test x\${enable_${varname}} "=" xno ; then
27079765
AH		 2421 noconfigdirs="$noconfigdirs $dir"
2422 fi
2423done
2424
43c40f3e
RO		 2425# Check for Boehm's garbage collector
2426AC_ARG_ENABLE(objc-gc,
2427[AS_HELP_STRING([--enable-objc-gc],
2428 [enable use of Boehm's garbage collector with the
114bf3f1
MK		 2429 GNU Objective-C runtime])])
2430AC_ARG_WITH([target-bdw-gc],
2431[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2432 [specify prefix directory for installed bdw-gc package.
2433 Equivalent to --with-target-bdw-gc-include=PATH/include
2434 plus --with-target-bdw-gc-lib=PATH/lib])])
2435AC_ARG_WITH([target-bdw-gc-include],
2436[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2437 [specify directories for installed bdw-gc include files])])
2438AC_ARG_WITH([target-bdw-gc-lib],
2439[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2440 [specify directories for installed bdw-gc library])])
2441
2442case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2443 AC_MSG_CHECKING([for bdw garbage collector])
2444 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
825fba52
MK		 2445 dnl no bdw-gw options, assume default locations
2446 AC_MSG_RESULT([using bdw-gc in default locations])
114bf3f1
MK		 2447 else
2448 dnl bdw-gw options, first error checking, complete checking in libobjc
2449 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2450 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2451 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2452 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2453 else
2454 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2455 fi
2456 fi
43c40f3e
RO		 2457esac
2458
e4cba494 2459# Disable libitm, libsanitizer, libvtv if we're not building C++
99776ebd 2460case ,${enable_languages}, in
1007a55c 2461 *,c++,*)
5e9d6aa4 2462 # Disable libitm, libsanitizer if we're not building libstdc++
1007a55c
JW		 2463 case "${noconfigdirs}" in
2464 *target-libstdc++-v3*)
5e9d6aa4 2465 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
1007a55c
JW		 2466 ;;
2467 *) ;;
2468 esac
2469 ;;
99776ebd 2470 *)
e4cba494 2471 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer target-libvtv"
99776ebd
RH		 2472 ;;
2473esac
7cd0cf9c 2474
725fb359
PEP		 2475case ,${enable_languages}, in
2476 *,rust,*)
2477 case " ${noconfigdirs} " in
2478 *\ target-libstdc++-v3\ *)
2479 # Disable target libgrust if we're not building target libstdc++.
2480 noconfigdirs="$noconfigdirs target-libgrust"
2481 ;;
2482 esac
2483 ;;
2484esac
2485
dc614a83
AB		 2486# If gcc/ is not in the source tree then we'll not be building a
2487# target compiler, assume in that case we don't want to build any
2488# target libraries or tools.
2489#
2490# This was added primarily for the benefit for binutils-gdb who reuse
2491# this configure script, but don't always have target tools available.
2492if test ! -d ${srcdir}/gcc; then
2493 skipdirs="${skipdirs} ${target_configdirs}"
2494fi
2495
9d069a4f
PB		 2496# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2497# $build_configdirs and $target_configdirs.
e4c9c075
PB		 2498# If we have the source for $noconfigdirs entries, add them to $notsupp.
2499
2500notsupp=""
2501for dir in . $skipdirs $noconfigdirs ; do
9d069a4f 2502 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
e4c9c075
PB		 2503 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2504 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2505 if test -r $srcdir/$dirname/configure ; then
2506 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2507 true
2508 else
2509 notsupp="$notsupp $dir"
2510 fi
2511 fi
2512 fi
9d069a4f
PB		 2513 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2514 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2515 if test -r $srcdir/$dirname/configure ; then
2516 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2517 true
2518 else
2519 notsupp="$notsupp $dir"
2520 fi
2521 fi
2522 fi
e4c9c075
PB		 2523 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2524 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2525 if test -r $srcdir/$dirname/configure ; then
2526 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2527 true
2528 else
2529 notsupp="$notsupp $dir"
2530 fi
2531 fi
2532 fi
2533done
2534
e4c9c075
PB		 2535# Quietly strip out all directories which aren't configurable in this tree.
2536# This relies on all configurable subdirectories being autoconfiscated, which
2537# is now the case.
23f6b2f9
PB		 2538build_configdirs_all="$build_configdirs"
2539build_configdirs=
2540for i in ${build_configdirs_all} ; do
2541 j=`echo $i | sed -e s/build-//g`
2542 if test -f ${srcdir}/$j/configure ; then
2543 build_configdirs="${build_configdirs} $i"
2544 fi
2545done
2546
e4c9c075
PB		 2547configdirs_all="$configdirs"
2548configdirs=
2549for i in ${configdirs_all} ; do
2550 if test -f ${srcdir}/$i/configure ; then
2551 configdirs="${configdirs} $i"
2552 fi
2553done
23f6b2f9 2554
e4c9c075
PB		 2555target_configdirs_all="$target_configdirs"
2556target_configdirs=
2557for i in ${target_configdirs_all} ; do
2558 j=`echo $i | sed -e s/target-//g`
2559 if test -f ${srcdir}/$j/configure ; then
2560 target_configdirs="${target_configdirs} $i"
2561 fi
2562done
2563
45b3824d
TS		 2564# libiberty-linker-plugin is special: it doesn't have its own source directory,
2565# so we have to add it after the preceding checks.
2566if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2567then
2568 case " $configdirs " in
2569 *" libiberty "*)
2570 # If we can build libiberty, we can also build libiberty-linker-plugin.
2571 configdirs="$configdirs libiberty-linker-plugin"
2572 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2573 --with-libiberty=../libiberty-linker-plugin";;
2574 *)
2575 AC_MSG_ERROR([libiberty missing]);;
2576 esac
2577fi
2578
fca38047
TS		 2579# Sometimes we have special requirements for the host libiberty.
2580extra_host_libiberty_configure_flags=
2581case " $configdirs " in
15368960 2582 *" lto-plugin "* | *" libcc1 "* | *" gdbserver "*)
fca38047
TS		 2583 # When these are to be built as shared libraries, the same applies to
2584 # libiberty.
2585 extra_host_libiberty_configure_flags=--enable-shared
2586 ;;
04bb15e4
TV		 2587esac
2588AC_SUBST(extra_host_libiberty_configure_flags)
2589
2590# Sometimes we have special requirements for the host zlib.
2591extra_host_zlib_configure_flags=
2592case " $configdirs " in
1c01ebf6
L		 2593 *" bfd "*)
2594 # When bfd is to be built as a shared library, the same applies to
2595 # zlib.
2596 if test "$enable_shared" = "yes"; then
2597 extra_host_zlib_configure_flags=--enable-host-shared
2598 fi
2599 ;;
fca38047 2600esac
1c01ebf6 2601AC_SUBST(extra_host_zlib_configure_flags)
fca38047 2602
e4c9c075
PB		 2603# Produce a warning message for the subdirs we can't configure.
2604# This isn't especially interesting in the Cygnus tree, but in the individual
2605# FSF releases, it's important to let people know when their machine isn't
2606# supported by the one or two programs in a package.
2607
2608if test -n "${notsupp}" && test -z "${norecursion}" ; then
2609 # If $appdirs is non-empty, at least one of those directories must still
2610 # be configured, or we error out. (E.g., if the gas release supports a
2611 # specified target in some subdirs but not the gas subdir, we shouldn't
2612 # pretend that all is well.)
2613 if test -n "$appdirs" ; then
2614 for dir in $appdirs ; do
2615 if test -r $dir/Makefile.in ; then
2616 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2617 appdirs=""
2618 break
2619 fi
23f6b2f9 2620 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
e4c9c075
PB		 2621 appdirs=""
2622 break
2623 fi
2624 fi
2625 done
2626 if test -n "$appdirs" ; then
2627 echo "*** This configuration is not supported by this package." 1>&2
2628 exit 1
2629 fi
2630 fi
2631 # Okay, some application will build, or we don't care to check. Still
2632 # notify of subdirs not getting built.
2633 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2634 echo " ${notsupp}" 1>&2
2635 echo " (Any other directories should still work fine.)" 1>&2
2636fi
2637
2638case "$host" in
2639 *msdosdjgpp*)
2640 enable_gdbtk=no ;;
2641esac
2642
c3a86da9
DJ		 2643# To find our prefix, in gcc_cv_tool_prefix.
2644ACX_TOOL_DIRS
2645
e4c9c075
PB		 2646copy_dirs=
2647
526635cb 2648AC_ARG_WITH([build-sysroot],
33e39b66
AS		 2649 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2650 [use sysroot as the system root during the build])],
526635cb
MM		 2651 [if test x"$withval" != x ; then
2652 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2653 fi],
2654 [SYSROOT_CFLAGS_FOR_TARGET=])
2655AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2656
c8aea42c 2657AC_ARG_WITH([debug-prefix-map],
33e39b66
AS		 2658 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2659 [map A to B, C to D ... in debug information])],
c8aea42c
PB		 2660 [if test x"$withval" != x; then
2661 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2662 for debug_map in $withval; do
2663 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2664 done
2665 fi],
2666 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2667AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2668
1c8bd6a3
PB		 2669# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2670# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2671# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2672# We want to ensure that TARGET libraries (which we know are built with
2673# gcc) are built with "-O2 -g", so include those options when setting
2674# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2675if test "x$CFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2676 if test "x${is_cross_compiler}" = xyes; then
2677 CFLAGS_FOR_TARGET="-g -O2"
2678 else
2679 CFLAGS_FOR_TARGET=$CFLAGS
2680 case " $CFLAGS " in
2681 *" -O2 "*) ;;
2682 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2683 esac
2684 case " $CFLAGS " in
2685 *" -g "* | *" -g3 "*) ;;
2686 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2687 esac
2688 fi
1c8bd6a3
PB		 2689fi
2690AC_SUBST(CFLAGS_FOR_TARGET)
2691
2692if test "x$CXXFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2693 if test "x${is_cross_compiler}" = xyes; then
2694 CXXFLAGS_FOR_TARGET="-g -O2"
2695 else
2696 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2697 case " $CXXFLAGS " in
2698 *" -O2 "*) ;;
2699 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2700 esac
2701 case " $CXXFLAGS " in
2702 *" -g "* | *" -g3 "*) ;;
2703 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2704 esac
2705 fi
1c8bd6a3
PB		 2706fi
2707AC_SUBST(CXXFLAGS_FOR_TARGET)
2708
6f57bdf6
DK		 2709AC_SUBST(LDFLAGS_FOR_TARGET)
2710
e4c9c075
PB		 2711# Handle --with-headers=XXX. If the value is not "yes", the contents of
2712# the named directory are copied to $(tooldir)/sys-include.
2713if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2714 if test x${is_cross_compiler} = xno ; then
2715 echo 1>&2 '***' --with-headers is only supported when cross compiling
2716 exit 1
2717 fi
2718 if test x"${with_headers}" != xyes ; then
c3a86da9 2719 x=${gcc_cv_tool_prefix}
1c710c3c 2720 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
e4c9c075
PB		 2721 fi
2722fi
2723
2724# Handle --with-libs=XXX. If the value is not "yes", the contents of
2725# the name directories are copied to $(tooldir)/lib. Multiple directories
2726# are permitted.
2727if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2728 if test x${is_cross_compiler} = xno ; then
2729 echo 1>&2 '***' --with-libs is only supported when cross compiling
2730 exit 1
2731 fi
2732 if test x"${with_libs}" != xyes ; then
2733 # Copy the libraries in reverse order, so that files in the first named
2734 # library override files in subsequent libraries.
c3a86da9 2735 x=${gcc_cv_tool_prefix}
e4c9c075 2736 for l in ${with_libs}; do
1c710c3c 2737 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
e4c9c075
PB		 2738 done
2739 fi
2740fi
2741
d7f09764 2742# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
e8b05380
PB		 2743#
2744# This is done by determining whether or not the appropriate directory
2745# is available, and by checking whether or not specific configurations
2746# have requested that this magic not happen.
2747#
2748# The command line options always override the explicit settings in
6b1786aa 2749# configure.ac, and the settings in configure.ac override this magic.
e8b05380
PB		 2750#
2751# If the default for a toolchain is to use GNU as and ld, and you don't
2752# want to do that, then you should use the --without-gnu-as and
d7f09764
DN		 2753# --without-gnu-ld options for the configure script. Similarly, if
2754# the default is to use the included zlib and you don't want to do that,
2755# you should use the --with-system-zlib option for the configure script.
e8b05380
PB		 2756
2757if test x${use_gnu_as} = x &&
2758 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2759 with_gnu_as=yes
2760 extra_host_args="$extra_host_args --with-gnu-as"
2761fi
2762
2763if test x${use_gnu_ld} = x &&
5afab7ad 2764 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
e8b05380
PB		 2765 with_gnu_ld=yes
2766 extra_host_args="$extra_host_args --with-gnu-ld"
2767fi
2768
d7f09764
DN		 2769if test x${use_included_zlib} = x &&
2770 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2771 :
2772else
2773 with_system_zlib=yes
2774 extra_host_args="$extra_host_args --with-system-zlib"
2775fi
2776
e8b05380
PB		 2777# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2778# can detect this case.
2779
2780if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2781 with_newlib=yes
2782 extra_host_args="$extra_host_args --with-newlib"
2783fi
2784
e4c9c075
PB		 2785# Handle ${copy_dirs}
2786set fnord ${copy_dirs}
2787shift
2788while test $# != 0 ; do
2789 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2790 :
2791 else
2792 echo Copying $1 to $2
2793
2794 # Use the install script to create the directory and all required
2795 # parent directories.
2796 if test -d $2 ; then
2797 :
2798 else
2799 echo >config.temp
2800 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2801 fi
2802
2803 # Copy the directory, assuming we have tar.
2804 # FIXME: Should we use B in the second tar? Not all systems support it.
2805 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2806
2807 # It is the responsibility of the user to correctly adjust all
2808 # symlinks. If somebody can figure out how to handle them correctly
2809 # here, feel free to add the code.
2810
2811 echo $1 > $2/COPIED
2812 fi
2813 shift; shift
2814done
2815
e8b05380
PB		 2816# Determine a target-dependent exec_prefix that the installed
2817# gcc will search in. Keep this list sorted by triplet, with
2818# the *-*-osname triplets last.
2819md_exec_prefix=
2820case "${target}" in
30b74385 2821 i[[34567]]86-pc-msdosdjgpp*)
e8b05380
PB		 2822 md_exec_prefix=/dev/env/DJDIR/bin
2823 ;;
e8b05380 2824 *-*-hpux* | \
e8b05380 2825 *-*-nto-qnx* | \
6de66370 2826 *-*-solaris2*)
e8b05380
PB		 2827 md_exec_prefix=/usr/ccs/bin
2828 ;;
2829esac
2830
4977bab6
ZW		 2831extra_arflags_for_target=
2832extra_nmflags_for_target=
2a726918 2833extra_ranlibflags_for_target=
671aa708 2834target_makefile_frag=/dev/null
55380b08 2835case "${target}" in
58e24147
AM		 2836 spu-*-*)
2837 target_makefile_frag="config/mt-spu"
2838 ;;
227b18f5
YY		 2839 loongarch*-*linux* | loongarch*-*gnu*)
2840 target_makefile_frag="config/mt-loongarch-gnu"
2841 ;;
2842 loongarch*-*elf*)
2843 target_makefile_frag="config/mt-loongarch-elf"
2844 ;;
74ae587e 2845 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
4bf6c438
RS		 2846 target_makefile_frag="config/mt-sde"
2847 ;;
1ec3b87b
RS		 2848 mipsisa*-*-elfoabi*)
2849 target_makefile_frag="config/mt-mips-elfoabi"
2850 ;;
08d0963a
RS		 2851 mips*-*-*linux* | mips*-*-gnu*)
2852 target_makefile_frag="config/mt-mips-gnu"
2853 ;;
707f1839
SL		 2854 nios2-*-elf*)
2855 target_makefile_frag="config/mt-nios2-elf"
2856 ;;
76052545
EB		 2857 *-*-linux-android*)
2858 target_makefile_frag="config/mt-android"
2859 ;;
416ac4d4 2860 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
98a5bb3b 2861 target_makefile_frag="config/mt-gnu"
55380b08 2862 ;;
671aa708 2863 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
4977bab6
ZW		 2864 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2865 # commands to handle both 32-bit and 64-bit objects. These flags are
2866 # harmless if we're using GNU nm or ar.
2867 extra_arflags_for_target=" -X32_64"
2868 extra_nmflags_for_target=" -B -X32_64"
55380b08 2869 ;;
c3b7d169
NN		 2870esac
2871
671aa708 2872alphaieee_frag=/dev/null
c3b7d169
NN		 2873case $target in
2874 alpha*-*-*)
2875 # This just makes sure to use the -mieee option to build target libs.
2876 # This should probably be set individually by each library.
2877 alphaieee_frag="config/mt-alphaieee"
55380b08
NN		 2878 ;;
2879esac
701afd4d 2880
55380b08
NN		 2881# If --enable-target-optspace always use -Os instead of -O2 to build
2882# the target libraries, similarly if it is not specified, use -Os
2883# on selected platforms.
671aa708 2884ospace_frag=/dev/null
55380b08
NN		 2885case "${enable_target_optspace}:${target}" in
2886 yes:*)
c3b7d169 2887 ospace_frag="config/mt-ospace"
55380b08
NN		 2888 ;;
2889 :d30v-*)
c3b7d169 2890 ospace_frag="config/mt-d30v"
55380b08 2891 ;;
d9063947 2892 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
c3b7d169 2893 ospace_frag="config/mt-ospace"
55380b08
NN		 2894 ;;
2895 no:* | :*)
2896 ;;
2897 *)
2898 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2899 ;;
2900esac
6599da04 2901
671aa708
NN		 2902# Some systems (e.g., one of the i386-aix systems the gas testers are
2903# using) don't handle "\$" correctly, so don't use it here.
1c710c3c 2904tooldir='${exec_prefix}'/${target_noncanonical}
671aa708
NN		 2905build_tooldir=${tooldir}
2906
671aa708
NN		 2907# Create a .gdbinit file which runs the one in srcdir
2908# and tells GDB to look there for source files.
2909
2910if test -r ${srcdir}/.gdbinit ; then
2911 case ${srcdir} in
2912 .) ;;
2913 *) cat > ./.gdbinit <<EOF
2914# ${NO_EDIT}
2915dir ${srcdir}
2916dir .
2917source ${srcdir}/.gdbinit
2918EOF
2919 ;;
2920 esac
2921fi
2922
6599da04
JM		 2923# Make sure that the compiler is able to generate an executable. If it
2924# can't, we are probably in trouble. We don't care whether we can run the
2925# executable--we might be using a cross compiler--we only care whether it
2926# can be created. At this point the main configure script has set CC.
aeaa0f2f 2927we_are_ok=no
6599da04
JM		 2928echo "int main () { return 0; }" > conftest.c
2929${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
aeaa0f2f
NN		 2930if test $? = 0 ; then
2931 if test -s conftest || test -s conftest.exe ; then
2932 we_are_ok=yes
2933 fi
2934fi
2935case $we_are_ok in
2936 no)
2937 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2938 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2939 rm -f conftest*
2940 exit 1
2941 ;;
2942esac
6599da04
JM		 2943rm -f conftest*
2944
d89f0ad6 2945# Decide which environment variable is used to find dynamic libraries.
fe3d5b7f
NN		 2946case "${host}" in
2947 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
111eeb6e 2948 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
d89f0ad6 2949 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
fe3d5b7f
NN		 2950 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2951esac
fe3d5b7f 2952
d89f0ad6
AL		 2953# On systems where the dynamic library environment variable is PATH,
2954# gcc/ will put dynamic libraries into a subdirectory to avoid adding
2955# built executables to PATH.
2956if test "$RPATH_ENVVAR" = PATH; then
2957 GCC_SHLIB_SUBDIR=/shlib
2958else
2959 GCC_SHLIB_SUBDIR=
2960fi
2961
beeda1d9
JJ		 2962# Adjust the toplevel makefile according to whether bootstrap was selected.
2963case $enable_bootstrap in
2964 yes)
2965 bootstrap_suffix=bootstrap
2966 BUILD_CONFIG=bootstrap-debug
2967 ;;
2968 no)
2969 bootstrap_suffix=no-bootstrap
2970 BUILD_CONFIG=
2971 ;;
2972esac
2973
2974AC_MSG_CHECKING(for default BUILD_CONFIG)
2975
2976AC_ARG_WITH([build-config],
2977 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2978 [use config/NAME.mk build configuration])],
2979 [case $with_build_config in
2980 yes) with_build_config= ;;
2981 no) with_build_config= BUILD_CONFIG= ;;
2982 esac])
2983
2984if test "x${with_build_config}" != x; then
2985 BUILD_CONFIG=$with_build_config
2986else
2987 case $BUILD_CONFIG in
2988 bootstrap-debug)
2989 if echo "int f (void) { return 0; }" > conftest.c &&
2990 ${CC} -c conftest.c &&
2991 mv conftest.o conftest.o.g0 &&
2992 ${CC} -c -g conftest.c &&
2993 mv conftest.o conftest.o.g &&
2994 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2995 :
2996 else
2997 BUILD_CONFIG=
2998 fi
2999 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
3000 ;;
3001 esac
3002fi
3003AC_MSG_RESULT($BUILD_CONFIG)
3004AC_SUBST(BUILD_CONFIG)
3005
3006# Use same top-level configure hooks in libgcc/libstdc++/libvtv.
3007AC_MSG_CHECKING([for --enable-vtable-verify])
3008AC_ARG_ENABLE(vtable-verify,
318a4e6d
MF		 3009[AS_HELP_STRING([--enable-vtable-verify],
3010 [Enable vtable verification feature])],
beeda1d9
JJ		 3011[case "$enableval" in
3012 yes) enable_vtable_verify=yes ;;
3013 no) enable_vtable_verify=no ;;
3014 *) enable_vtable_verify=no;;
3015 esac],
3016[enable_vtable_verify=no])
3017AC_MSG_RESULT($enable_vtable_verify)
3018
4977bab6
ZW		 3019# Record target_configdirs and the configure arguments for target and
3020# build configuration in Makefile.
3021target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
23f6b2f9 3022build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
9e1c8fc1 3023bootstrap_fixincludes=no
4977bab6 3024
ad1e5170
JR		 3025# If we are building libgomp, bootstrap it.
3026if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
3027 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
3028fi
3029
beeda1d9
JJ		 3030# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
3031# or bootstrap-ubsan, bootstrap it.
3032if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
3033 case "$BUILD_CONFIG" in
170e618e 3034 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
beeda1d9 3035 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
9e1c8fc1 3036 bootstrap_fixincludes=yes
beeda1d9
JJ		 3037 ;;
3038 esac
ac8701fe
L		 3039fi
3040
beeda1d9
JJ		 3041# If we are building libvtv and --enable-vtable-verify, bootstrap it.
3042if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
3043 test "$enable_vtable_verify" != no; then
2077db1b
CT		 3044 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
3045fi
3046
5fee5ec3
IB		 3047# If we are building libatomic and the list of enabled languages includes the
3048# D frontend, bootstrap it.
3049if echo " ${target_configdirs} " | grep " libatomic " > /dev/null 2>&1; then
3050 case ,${enable_languages}, in
3051 *,d,*)
3052 bootstrap_target_libs=${bootstrap_target_libs}target-libatomic,
3053 ;;
3054 esac
3055fi
3056
4977bab6
ZW		 3057# Determine whether gdb needs tk/tcl or not.
3058# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
3059# and in that case we want gdb to be built without tk. Ugh!
3060# In fact I believe gdb is the *only* package directly dependent on tk,
3061# so we should be able to put the 'maybe's in unconditionally and
3062# leave out the maybe dependencies when enable_gdbtk is false. I'm not
3063# 100% sure that that's safe though.
e914a571 3064
b4f96efe 3065gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
4977bab6
ZW		 3066case "$enable_gdbtk" in
3067 no)
3068 GDB_TK="" ;;
e914a571
AC		 3069 yes)
3070 GDB_TK="${gdb_tk}" ;;
4977bab6 3071 *)
e914a571
AC		 3072 # Only add the dependency on gdbtk when GDBtk is part of the gdb
3073 # distro. Eventually someone will fix this and move Insight, nee
3074 # gdbtk to a separate directory.
3075 if test -d ${srcdir}/gdb/gdbtk ; then
3076 GDB_TK="${gdb_tk}"
3077 else
3078 GDB_TK=""
3079 fi
3080 ;;
4977bab6 3081esac
ef9db8d5
DJ		 3082CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
3083INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
4977bab6 3084
f9d09df0
TT		 3085# gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
3086# else does, only include them if one of these is built. The Makefile
3087# provides the ordering, so it's enough here to add to the list.
3088case " ${configdirs} " in
3089 *\ gdb\ *)
3090 configdirs="${configdirs} gnulib gdbsupport"
3091 ;;
3092 *\ gdbserver\ *)
3093 configdirs="${configdirs} gnulib gdbsupport"
3094 ;;
f14c9bd4
MF		 3095 *\ sim\ *)
3096 configdirs="${configdirs} gnulib"
3097 ;;
f9d09df0 3098esac
98e5be21 3099
60975492 3100# Strip out unwanted targets.
8b87bb96
NN		 3101
3102# While at that, we remove Makefiles if we were started for recursive
3103# configuration, so that the top-level Makefile reconfigures them,
3104# like we used to do when configure itself was recursive.
8b87bb96 3105
3e54529c
RW		 3106# Loop over modules. We used to use the "$extrasub" feature from Autoconf
3107# but now we're fixing up the Makefile ourselves with the additional
3108# commands passed to AC_CONFIG_FILES. Use separate variables
3109# extrasub-{build,host,target} not because there is any reason to split
3110# the substitutions up that way, but only to remain below the limit of
3111# 99 commands in a script, for HP-UX sed.
da34ca3f
AO		 3112
3113# Do not nest @if/@endif or @unless/@endunless pairs, because
3114# configure will not warn you at all.
8b87bb96 3115
79cd2b23
RW		 3116case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
3117 yes:yes:*\ gold\ *:*,c++,*) ;;
3118 yes:yes:*\ gold\ *:*)
3119 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
3120 ;;
3121esac
3122
3e54529c 3123extrasub_build=
23f6b2f9 3124for module in ${build_configdirs} ; do
8b87bb96
NN		 3125 if test -z "${no_recursion}" \
3126 && test -f ${build_subdir}/${module}/Makefile; then
3127 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
3128 rm -f ${build_subdir}/${module}/Makefile
3129 fi
3e54529c 3130 extrasub_build="$extrasub_build
60975492 3131/^@if build-$module\$/d
5607edfd 3132/^@endif build-$module\$/d
da34ca3f 3133/^@unless build-$module\$/,/^@endunless build-$module\$/d
5607edfd 3134/^@if build-$module-$bootstrap_suffix\$/d
da34ca3f
AO		 3135/^@endif build-$module-$bootstrap_suffix\$/d
3136/^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
8b87bb96 3137done
3e54529c 3138extrasub_host=
8b87bb96 3139for module in ${configdirs} ; do
a6fbc1e2 3140 if test -z "${no_recursion}"; then
f063a9ed 3141 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
a6fbc1e2
AS		 3142 if test -f ${file}; then
3143 echo 1>&2 "*** removing ${file} to force reconfigure"
3144 rm -f ${file}
3145 fi
3146 done
8b87bb96 3147 fi
9e1c8fc1
JJ		 3148 case ${module},${bootstrap_fixincludes} in
3149 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
3150 *) host_bootstrap_suffix=$bootstrap_suffix ;;
3151 esac
3e54529c 3152 extrasub_host="$extrasub_host
60975492 3153/^@if $module\$/d
5607edfd 3154/^@endif $module\$/d
da34ca3f 3155/^@unless $module\$/,/^@endunless $module\$/d
9e1c8fc1 3156/^@if $module-$host_bootstrap_suffix\$/d
da34ca3f
AO		 3157/^@endif $module-$host_bootstrap_suffix\$/d
3158/^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
8b87bb96 3159done
3e54529c 3160extrasub_target=
8b87bb96
NN		 3161for module in ${target_configdirs} ; do
3162 if test -z "${no_recursion}" \
3163 && test -f ${target_subdir}/${module}/Makefile; then
3164 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
3165 rm -f ${target_subdir}/${module}/Makefile
3166 fi
00020c16
ILT		 3167
3168 # We only bootstrap target libraries listed in bootstrap_target_libs.
3169 case $bootstrap_target_libs in
3170 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
3171 *) target_bootstrap_suffix=no-bootstrap ;;
3172 esac
3173
3e54529c 3174 extrasub_target="$extrasub_target
60975492 3175/^@if target-$module\$/d
5607edfd 3176/^@endif target-$module\$/d
da34ca3f 3177/^@unless target-$module\$/,/^@endunless target-$module\$/d
00020c16 3178/^@if target-$module-$target_bootstrap_suffix\$/d
da34ca3f
AO		 3179/^@endif target-$module-$target_bootstrap_suffix\$/d
3180/^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
4977bab6 3181done
f516a7da 3182
3e54529c
RW		 3183# Do the final fixup along with target modules.
3184extrasub_target="$extrasub_target
da34ca3f
AO		 3185/^@if /,/^@endif /d
3186/^@unless /d
3187/^@endunless /d"
4977bab6 3188
4a5e71f2
L		 3189if test "$enable_pgo_build" != "no"; then
3190 extrasub_build="$extrasub_build
3191/^@if pgo-build\$/d
3192/^@endif pgo-build\$/d"
3193fi
3194
4977bab6
ZW		 3195# Create the serialization dependencies. This uses a temporary file.
3196
ade82b16 3197AC_ARG_ENABLE([serial-configure],
33e39b66
AS		 3198[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
3199 [force sequential configuration of
3200 sub-packages for the host, target or build
3201 machine, or all sub-packages])])
bf1d3e81
NN		 3202
3203case ${enable_serial_configure} in
3204 yes)
3205 enable_serial_build_configure=yes
3206 enable_serial_host_configure=yes
3207 enable_serial_target_configure=yes
3208 ;;
3209esac
ade82b16 3210
4977bab6
ZW		 3211# These force 'configure's to be done one at a time, to avoid problems
3212# with contention over a shared config.cache.
3213rm -f serdep.tmp
7d115e01 3214if test "x${enable_serial_build_configure}" = xyes || test "x${enable_serial_host_configure}" = xyes || test "x${enable_serial_target_configure}" = xyes; then
ade82b16 3215echo '# serdep.tmp' > serdep.tmp
7d115e01 3216fi
4977bab6 3217olditem=
bf1d3e81 3218test "x${enable_serial_build_configure}" = xyes &&
4977bab6
ZW		 3219for item in ${build_configdirs} ; do
3220 case ${olditem} in
3221 "") ;;
ade82b16 3222 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3223 esac
3224 olditem=${item}
3225done
3226olditem=
bf1d3e81 3227test "x${enable_serial_host_configure}" = xyes &&
4977bab6
ZW		 3228for item in ${configdirs} ; do
3229 case ${olditem} in
3230 "") ;;
ade82b16 3231 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3232 esac
3233 olditem=${item}
3234done
3235olditem=
bf1d3e81 3236test "x${enable_serial_target_configure}" = xyes &&
4977bab6
ZW		 3237for item in ${target_configdirs} ; do
3238 case ${olditem} in
3239 "") ;;
ade82b16 3240 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3241 esac
3242 olditem=${item}
3243done
671aa708
NN		 3244serialization_dependencies=serdep.tmp
3245AC_SUBST_FILE(serialization_dependencies)
fe3d5b7f 3246
ade82b16 3247# Base args. Strip norecursion, cache-file, srcdir, host, build,
1c710c3c 3248# target, nonopt, and variable assignments. These are the ones we
f1a036e4
NC		 3249# might not want to pass down to subconfigures. The exception being
3250# --cache-file=/dev/null, which is used to turn off the use of cache
3251# files altogether, and which should be passed on to subconfigures.
3252# Also strip program-prefix, program-suffix, and program-transform-name,
3253# so that we can pass down a consistent program-transform-name.
db50aea6
AA		 3254hbaseargs=
3255bbaseargs=
29a63921 3256tbaseargs=
1c710c3c
DJ		 3257keep_next=no
3258skip_next=no
3259eval "set -- $ac_configure_args"
44bfc3ac
DJ		 3260for ac_arg
3261do
1c710c3c
DJ		 3262 if test X"$skip_next" = X"yes"; then
3263 skip_next=no
3264 continue
3265 fi
3266 if test X"$keep_next" = X"yes"; then
3267 case $ac_arg in
3268 *\'*)
3269 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3270 esac
db50aea6
AA		 3271 hbaseargs="$hbaseargs '$ac_arg'"
3272 bbaseargs="$bbaseargs '$ac_arg'"
29a63921 3273 tbaseargs="$tbaseargs '$ac_arg'"
1c710c3c
DJ		 3274 keep_next=no
3275 continue
3276 fi
3277
3278 # Handle separated arguments. Based on the logic generated by
3279 # autoconf 2.59.
3280 case $ac_arg in
3281 *=* | --config-cache | -C | -disable-* | --disable-* \
3282 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3283 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3284 | -with-* | --with-* | -without-* | --without-* | --x)
3285 separate_arg=no
3286 ;;
3287 -*)
3288 separate_arg=yes
3289 ;;
3290 *)
3291 separate_arg=no
3292 ;;
3293 esac
3294
29a63921 3295 skip_targ=no
db50aea6 3296 skip_barg=no
29a63921
AO		 3297 case $ac_arg in
3298changequote(,)
3299 --with-* | --without-*)
3300 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3301
3302 case $libopt in
3303 *[-_]include)
3304 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3305 ;;
3306 *[-_]lib)
3307 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3308 ;;
db50aea6
AA		 3309 *[-_]prefix)
3310 lib=`echo "$libopt" | sed 's,[-_]prefix$,,'`
3311 ;;
3312 *[-_]type)
3313 lib=`echo "$libopt" | sed 's,[-_]type$,,'`
3314 ;;
29a63921
AO		 3315 *)
3316 lib=$libopt
3317 ;;
3318 esac
3319changequote([,])
3320
3321 case $lib in
4a9bb2aa 3322 mpc | mpfr | gmp | isl)
29a63921
AO		 3323 # If we're processing --with-$lib, --with-$lib-include or
3324 # --with-$lib-lib, for one of the libs above, and target is
3325 # different from host, don't pass the current argument to any
3326 # target library's configure.
3327 if test x$is_cross_compiler = xyes; then
3328 skip_targ=yes
3329 fi
3330 ;;
db50aea6
AA		 3331 libintl | libiconv)
3332 # We don't want libintl (and co.) in anything but the host arguments.
3333 skip_targ=yes
3334 skip_barg=yes
3335 ;;
29a63921
AO		 3336 esac
3337 ;;
3338 esac
3339
1c710c3c 3340 case "$ac_arg" in
f1a036e4
NC		 3341 --cache-file=/dev/null | \
3342 -cache-file=/dev/null )
3343 # Handled here to avoid the test to skip args below.
db50aea6
AA		 3344 hbaseargs="$hbaseargs '$ac_arg'"
3345 bbaseargs="$bbaseargs '$ac_arg'"
29a63921 3346 tbaseargs="$tbaseargs '$ac_arg'"
f1a036e4
NC		 3347 # Assert: $separate_arg should always be no.
3348 keep_next=$separate_arg
3349 ;;
1c710c3c
DJ		 3350 --no*)
3351 continue
3352 ;;
3353 --c* | \
3354 --sr* | \
3355 --ho* | \
3356 --bu* | \
3357 --t* | \
3358 --program-* | \
3359 -cache_file* | \
3360 -srcdir* | \
3361 -host* | \
3362 -build* | \
3363 -target* | \
3364 -program-prefix* | \
3365 -program-suffix* | \
3366 -program-transform-name* )
3367 skip_next=$separate_arg
3368 continue
3369 ;;
3370 -*)
3371 # An option. Add it.
3372 case $ac_arg in
3373 *\'*)
3374 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3375 esac
db50aea6
AA		 3376 hbaseargs="$hbaseargs '$ac_arg'"
3377 if test X"$skip_barg" = Xno; then
3378 bbaseargs="$bbaseargs '$ac_arg'"
3379 fi
29a63921
AO		 3380 if test X"$skip_targ" = Xno; then
3381 tbaseargs="$tbaseargs '$ac_arg'"
3382 fi
1c710c3c
DJ		 3383 keep_next=$separate_arg
3384 ;;
3385 *)
3386 # Either a variable assignment, or a nonopt (triplet). Don't
3387 # pass it down; let the Makefile handle this.
3388 continue
3389 ;;
3390 esac
3391done
3392# Remove the initial space we just introduced and, as these will be
3393# expanded by make, quote '$'.
db50aea6
AA		 3394hbaseargs=`echo "x$hbaseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3395bbaseargs=`echo "x$bbaseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
6599da04 3396
43bb47c2
DJ		 3397# Add in --program-transform-name, after --program-prefix and
3398# --program-suffix have been applied to it. Autoconf has already
3399# doubled dollar signs and backslashes in program_transform_name; we want
3400# the backslashes un-doubled, and then the entire thing wrapped in single
3401# quotes, because this will be expanded first by make and then by the shell.
3402# Also, because we want to override the logic in subdir configure scripts to
3403# choose program_transform_name, replace any s,x,x, with s,y,y,.
3404sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3405${program_transform_name}
3406EOF_SED
3407gcc_transform_name=`cat conftestsed.out`
3408rm -f conftestsed.out
db50aea6
AA		 3409hbaseargs="$hbaseargs --program-transform-name='${gcc_transform_name}'"
3410bbaseargs="$bbaseargs --program-transform-name='${gcc_transform_name}'"
29a63921 3411tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
d9acb717 3412if test "$silent" = yes; then
db50aea6
AA		 3413 bbaseargs="$bbaseargs --silent"
3414 hbaseargs="$hbaseargs --silent"
29a63921 3415 tbaseargs="$tbaseargs --silent"
d9acb717 3416fi
a49d42e8 3417
db50aea6
AA		 3418bbaseargs="$bbaseargs --disable-option-checking"
3419hbaseargs="$hbaseargs --disable-option-checking"
29a63921 3420tbaseargs="$tbaseargs --disable-option-checking"
43bb47c2 3421
a49d42e8
LM		 3422if test "$enable_year2038" = no; then
3423 baseargs="$baseargs --disable-year2038"
3424 tbaseargs="$tbaseargs --disable-year2038"
3425fi
3426
ffedf511
RW		 3427# Record and document user additions to sub configure arguments.
3428AC_ARG_VAR([build_configargs],
3429 [additional configure arguments for build directories])
3430AC_ARG_VAR([host_configargs],
3431 [additional configure arguments for host directories])
3432AC_ARG_VAR([target_configargs],
3433 [additional configure arguments for target directories])
3434
e490616e
ZW		 3435# For the build-side libraries, we just need to pretend we're native,
3436# and not use the same cache file. Multilibs are neither needed nor
3d96b0d0
HPN		 3437# desired. We can't even use the same cache file for all build-side
3438# libraries, as they're compiled differently; some with C, some with
3439# C++ or with different feature-enabling options.
db50aea6 3440build_configargs="$build_configargs --cache-file=./config.cache ${bbaseargs}"
e254d6b5 3441
4977bab6
ZW		 3442# For host modules, accept cache file option, or specification as blank.
3443case "${cache_file}" in
3444"") # empty
3445 cache_file_option="" ;;
671aa708 3446/* | [[A-Za-z]]:[[\\/]]* ) # absolute path
4977bab6
ZW		 3447 cache_file_option="--cache-file=${cache_file}" ;;
3448*) # relative path
3449 cache_file_option="--cache-file=../${cache_file}" ;;
3450esac
3451
09438bde
NN		 3452# Host dirs don't like to share a cache file either, horribly enough.
3453# This seems to be due to autoconf 2.5x stupidity.
db50aea6 3454host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${hbaseargs}"
4977bab6 3455
29a63921 3456target_configargs="$target_configargs ${tbaseargs}"
e490616e 3457
6599da04
JM		 3458# Passing a --with-cross-host argument lets the target libraries know
3459# whether they are being built with a cross-compiler or being built
3460# native. However, it would be better to use other mechanisms to make the
3461# sorts of decisions they want to make on this basis. Please consider
3462# this option to be deprecated. FIXME.
aeaa0f2f 3463if test x${is_cross_compiler} = xyes ; then
1c710c3c 3464 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
6599da04
JM		 3465fi
3466
79e0604d
FXC		 3467# Special user-friendly check for native x86_64-linux build, if
3468# multilib is not explicitly enabled.
3469case "$target:$have_compiler:$host:$target:$enable_multilib" in
3470 x86_64-*linux*:yes:$build:$build:)
e640447c 3471 # Make sure we have a development environment that handles 32-bit
79e0604d
FXC		 3472 dev64=no
3473 echo "int main () { return 0; }" > conftest.c
3474 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3475 if test $? = 0 ; then
3476 if test -s conftest || test -s conftest.exe ; then
3477 dev64=yes
3478 fi
3479 fi
3480 rm -f conftest*
3481 if test x${dev64} != xyes ; then
e640447c 3482 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		 3483 fi
3484 ;;
3485esac
3486
dc683a3f
RW		 3487# Default to --enable-multilib.
3488if test x${enable_multilib} = x ; then
3fedb745 3489 target_configargs="--enable-multilib ${target_configargs}"
dc683a3f 3490fi
6599da04 3491
5d4a5ee6
JL		 3492# Pass --with-newlib if appropriate. Note that target_configdirs has
3493# changed from the earlier setting of with_newlib.
aeaa0f2f 3494if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3fedb745 3495 target_configargs="--with-newlib ${target_configargs}"
5d4a5ee6
JL		 3496fi
3497
6b9eb62c
NN		 3498# Different target subdirs use different values of certain variables
3499# (notably CXX). Worse, multilibs use *lots* of different values.
3500# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3501# it doesn't automatically accept command-line overrides of them.
3502# This means it's not safe for target subdirs to share a cache file,
3503# which is disgusting, but there you have it. Hopefully this can be
3504# fixed in future. It's still worthwhile to use a cache file for each
3505# directory. I think.
3506
bebcd931
MS		 3507# Pass the appropriate --build, --host, --target and --cache-file arguments.
3508# We need to pass --target, as newer autoconf's requires consistency
3509# for target_alias and gcc doesn't manage it consistently.
e69bf64b 3510target_configargs="--cache-file=./config.cache ${target_configargs}"
e490616e 3511
b87487b6 3512FLAGS_FOR_TARGET=
bb654703 3513case " $target_configdirs " in
7965440a 3514 *" newlib "*)
3fedb745 3515 case " $target_configargs " in
7965440a 3516 *" --with-newlib "*)
b87487b6 3517 case "$target" in
5d571eaa 3518 *-cygwin*)
443e6238 3519 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
5d571eaa 3520 ;;
b87487b6
AO		 3521 esac
3522
afd7db25 3523 # If we're not building GCC, don't discard standard headers.
ef40bc65 3524 if test -d ${srcdir}/gcc; then
d4eb109c 3525 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
afd7db25
AO		 3526
3527 if test "${build}" != "${host}"; then
3528 # On Canadian crosses, CC_FOR_TARGET will have already been set
3529 # by `configure', so we won't have an opportunity to add -Bgcc/
3530 # to it. This is right: we don't want to search that directory
3531 # for binaries, but we want the header files in there, so add
3532 # them explicitly.
0463992b 3533 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
afd7db25
AO		 3534
3535 # Someone might think of using the pre-installed headers on
3536 # Canadian crosses, in case the installed compiler is not fully
3537 # compatible with the compiler being built. In this case, it
3538 # would be better to flag an error than risking having
3539 # incompatible object files being constructed. We can't
3540 # guarantee that an error will be flagged, but let's hope the
3541 # compiler will do it, when presented with incompatible header
3542 # files.
3543 fi
d4eb109c
AO		 3544 fi
3545
ab50d72b 3546 case "${target}-${is_cross_compiler}" in
f2a0e225 3547 i[[3456789]]86-*-linux*-no)
ab50d72b
DD		 3548 # Here host == target, so we don't need to build gcc,
3549 # so we don't want to discard standard headers.
3550 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
ab50d72b
DD		 3551 ;;
3552 *)
3553 # If we're building newlib, use its generic headers last, but search
3554 # for any libc-related directories first (so make it the last -B
3555 # switch).
3556 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
c03353e2
RIL		 3557
3558 # If we're building libgloss, find the startup file, simulator library
3559 # and linker script.
3560 case " $target_configdirs " in
3561 *" libgloss "*)
3562 # Look for startup file, simulator library and maybe linker script.
3563 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3564 # Look for libnosys.a in case the target needs it.
3565 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3566 # Most targets have the linker script in the source directory.
3567 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3568 ;;
3569 esac
ab50d72b
DD		 3570 ;;
3571 esac
b87487b6 3572 ;;
7965440a
AO		 3573 esac
3574 ;;
b87487b6 3575esac
5d571eaa 3576
b91f0a41 3577case "$target" in
5d571eaa
OS		 3578 x86_64-*mingw* | *-w64-mingw*)
3579 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3580 # however, use a symlink named 'mingw' in ${prefix} .
3581 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3582 ;;
3583 *-mingw*)
3584 # MinGW can't be handled as Cygwin above since it does not use newlib.
3585 FLAGS_FOR_TARGET=$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'
3586 ;;
b91f0a41 3587esac
d4eb109c 3588
6691a79e
ME		 3589# Allow the user to override the flags for
3590# our build compiler if desired.
f019adc1
MF		 3591if test x"${build}" = x"${host}" ; then
3592 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
84401ce5 3593 CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}}
f019adc1
MF		 3594 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3595 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3596fi
6691a79e 3597
d4eb109c
AO		 3598# On Canadian crosses, we'll be searching the right directories for
3599# the previously-installed cross compiler, so don't bother to add
3600# flags for directories within the install tree of the compiler
3601# being built; programs in there won't even run.
ef40bc65 3602if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
b87487b6 3603 # Search for pre-installed headers if nothing else fits.
9124bc53 3604 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
b87487b6 3605fi
d4eb109c 3606
bb654703 3607if test "x${use_gnu_ld}" = x &&
55380b08 3608 echo " ${configdirs} " | grep " ld " > /dev/null ; then
b87487b6 3609 # Arrange for us to find uninstalled linker scripts.
215c351a 3610 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
b87487b6
AO		 3611fi
3612
e88a2c09
DD		 3613# Search for other target-specific linker scripts and such.
3614case "${target}" in
3e19841a
PB		 3615 mep*)
3616 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3617 ;;
9b8ffbb8
OH		 3618 # The VxWorks support for shared libraries is getting in
3619 # incrementally. Make sure it doesn't get activated implicitly:
3620 *vxworks*)
3621 if test "${enable_shared-unset}" = unset ; then
3622 enable_shared=no
3623 # So the build of libraries knows ...
3624 target_configargs="${target_configargs} --disable-shared"
3625 # So gcc knows ...
3626 host_configargs="${host_configargs} --disable-shared"
3627 fi
3628 ;;
e88a2c09
DD		 3629esac
3630
671aa708 3631# Makefile fragments.
7b61653a
PE		 3632for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3633do
3634 eval fragval=\$$frag
3635 if test $fragval != /dev/null; then
3636 eval $frag=${srcdir}/$fragval
3637 fi
3638done
671aa708
NN		 3639AC_SUBST_FILE(host_makefile_frag)
3640AC_SUBST_FILE(target_makefile_frag)
3641AC_SUBST_FILE(alphaieee_frag)
3642AC_SUBST_FILE(ospace_frag)
3643
3644# Miscellanea: directories, flags, etc.
671aa708 3645AC_SUBST(RPATH_ENVVAR)
d89f0ad6 3646AC_SUBST(GCC_SHLIB_SUBDIR)
671aa708
NN		 3647AC_SUBST(tooldir)
3648AC_SUBST(build_tooldir)
ef9db8d5 3649AC_SUBST(CONFIGURE_GDB_TK)
671aa708 3650AC_SUBST(GDB_TK)
ef9db8d5 3651AC_SUBST(INSTALL_GDB_TK)
671aa708
NN		 3652
3653# Build module lists & subconfigure args.
671aa708 3654AC_SUBST(build_configargs)
23f6b2f9 3655AC_SUBST(build_configdirs)
671aa708
NN		 3656
3657# Host module lists & subconfigure args.
3658AC_SUBST(host_configargs)
3659AC_SUBST(configdirs)
aae29963 3660AC_SUBST(target_configdirs)
671aa708
NN		 3661
3662# Target module lists & subconfigure args.
671aa708 3663AC_SUBST(target_configargs)
ee2312f3 3664
671aa708
NN		 3665
3666# Build tools.
0999159b
PB		 3667AC_SUBST(AR_FOR_BUILD)
3668AC_SUBST(AS_FOR_BUILD)
671aa708 3669AC_SUBST(CC_FOR_BUILD)
0999159b 3670AC_SUBST(CFLAGS_FOR_BUILD)
84401ce5
RP		 3671AC_SUBST(CPP_FOR_BUILD)
3672AC_SUBST(CPPFLAGS_FOR_BUILD)
0999159b
PB		 3673AC_SUBST(CXXFLAGS_FOR_BUILD)
3674AC_SUBST(CXX_FOR_BUILD)
3675AC_SUBST(DLLTOOL_FOR_BUILD)
3b5e8ee4 3676AC_SUBST(DSYMUTIL_FOR_BUILD)
0999159b 3677AC_SUBST(GFORTRAN_FOR_BUILD)
632e2a07 3678AC_SUBST(GOC_FOR_BUILD)
b4c522fa 3679AC_SUBST(GDC_FOR_BUILD)
0999159b
PB		 3680AC_SUBST(LDFLAGS_FOR_BUILD)
3681AC_SUBST(LD_FOR_BUILD)
3682AC_SUBST(NM_FOR_BUILD)
3683AC_SUBST(RANLIB_FOR_BUILD)
3684AC_SUBST(WINDMC_FOR_BUILD)
3685AC_SUBST(WINDRES_FOR_BUILD)
671aa708 3686
2abefe3d
PB		 3687# Generate default definitions for YACC, M4, LEX and other programs that run
3688# on the build machine. These are used if the Makefile can't locate these
3689# programs in objdir.
3690MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3691
3692AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3693case " $build_configdirs " in
3694 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2abefe3d
PB		 3695esac
3696
3697AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3698case " $build_configdirs " in
3699 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3700esac
3701
3702AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3703case " $build_configdirs " in
3704 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3705esac
3706
3707AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3708case " $build_configdirs " in
3709 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3710 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3711esac
3712
3713AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3714case " $build_configdirs " in
3715 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3716esac
3717
3718AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3719case " $build_configdirs " in
3720 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3721 *)
3722changequote(,)
d18ff35a 3723 # For an installed makeinfo, we require it to be from texinfo 4.7 or
2abefe3d
PB		 3724 # higher, else we use the "missing" dummy.
3725 if ${MAKEINFO} --version \
d18ff35a 3726 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
2abefe3d
PB		 3727 :
3728 else
3729 MAKEINFO="$MISSING makeinfo"
3730 fi
3731 ;;
3732changequote([,])
3733esac
3734
3735# FIXME: expect and dejagnu may become build tools?
3736
3737AC_CHECK_PROGS(EXPECT, expect, expect)
3738case " $configdirs " in
3739 *" expect "*)
3740 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3741 ;;
3742esac
3743
3744AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3745case " $configdirs " in
3746 *" dejagnu "*)
c394e891 3747 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2abefe3d
PB		 3748 ;;
3749esac
3750
4e3dcf20 3751
671aa708 3752# Host tools.
2693c0b0
PB		 3753NCN_STRICT_CHECK_TOOLS(AR, ar)
3754NCN_STRICT_CHECK_TOOLS(AS, as)
3755NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3b5e8ee4 3756NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil)
2693c0b0 3757NCN_STRICT_CHECK_TOOLS(LD, ld)
2abefe3d 3758NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2693c0b0 3759NCN_STRICT_CHECK_TOOLS(NM, nm)
8927b7c0
RO		 3760NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3761NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
2693c0b0 3762NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
901119ae 3763NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
2693c0b0
PB		 3764NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3765NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
e4a9a572 3766NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
e7a82751 3767NCN_STRICT_CHECK_TOOLS(READELF, readelf)
671aa708
NN		 3768AC_SUBST(CC)
3769AC_SUBST(CXX)
3770AC_SUBST(CFLAGS)
3771AC_SUBST(CXXFLAGS)
5fee5ec3
IB		 3772AC_SUBST(GDC)
3773AC_SUBST(GDCFLAGS)
1ed21e23 3774GDCFLAGS=${GDCFLAGS-${CFLAGS}}
1ddd41fd 3775AC_SUBST(PKG_CONFIG_PATH)
671aa708 3776
126f707e
L		 3777GCC_PLUGIN_OPTION(PLUGIN_OPTION)
3778AR_PLUGIN_OPTION=
3779RANLIB_PLUGIN_OPTION=
3780if test -n "$PLUGIN_OPTION"; then
3781 if $AR --help 2>&1 | grep -q "\--plugin"; then
3782 AR_PLUGIN_OPTION="$PLUGIN_OPTION"
3783 fi
3784 if $RANLIB --help 2>&1 | grep -q "\--plugin"; then
3785 RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION"
3786 fi
3787fi
3788AC_SUBST(AR_PLUGIN_OPTION)
3789AC_SUBST(RANLIB_PLUGIN_OPTION)
3790
2abefe3d 3791# Target tools.
e8b05380 3792AC_ARG_WITH([build-time-tools],
33e39b66
AS		 3793 [AS_HELP_STRING([--with-build-time-tools=PATH],
3794 [use given path to find target tools during the build])],
e8b05380
PB		 3795 [case x"$withval" in
3796 x/*) ;;
3797 *)
3798 with_build_time_tools=
3799 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3800 ;;
3801 esac],
3802 [with_build_time_tools=])
3803
2693c0b0
PB		 3804NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3805NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2693c0b0 3806NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2693c0b0 3807NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
632e2a07 3808NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
b4c522fa 3809NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
1eee94d3 3810NCN_STRICT_CHECK_TARGET_TOOLS(GM2_FOR_TARGET, gm2)
e8b05380
PB		 3811
3812ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3813ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3814ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3b5e8ee4 3815ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil)
e8b05380
PB		 3816ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3817ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3818ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
9bccfdf5 3819ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
e8b05380 3820ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
e4a9a572 3821ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
8927b7c0 3822ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
e7a82751 3823ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
e8b05380
PB		 3824ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3825ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
901119ae 3826ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
4de997d1 3827
2abefe3d
PB		 3828RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3829
3830GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3831GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3832GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
b3f122e0 3833dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
2abefe3d 3834GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2077db1b 3835 [gcc/xg++ -B$$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$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
2abefe3d
PB		 3836 c++)
3837GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2077db1b 3838 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
2abefe3d
PB		 3839 c++)
3840GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3b5e8ee4 3841GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL)
2abefe3d 3842GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2abefe3d
PB		 3843GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3844 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
632e2a07
ILT		 3845GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3846 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
b4c522fa
IB		 3847GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3848 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
1eee94d3
GM		 3849GCC_TARGET_TOOL(gm2, GM2_FOR_TARGET, GM2,
3850 [gcc/gm2 -B$$r/$(HOST_SUBDIR)/gcc/], m2)
2abefe3d
PB		 3851GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3852GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3853GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
ec8fd1c0 3854GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
2abefe3d 3855GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
e4a9a572 3856GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
2abefe3d 3857GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
e7a82751 3858GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
455c8f48 3859GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
2abefe3d 3860GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
901119ae 3861GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
4de997d1 3862
2abefe3d 3863AC_SUBST(FLAGS_FOR_TARGET)
4de997d1 3864AC_SUBST(RAW_CXX_FOR_TARGET)
be912515 3865
671aa708
NN		 3866# Certain tools may need extra flags.
3867AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3868RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3869NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
6599da04 3870
2abefe3d
PB		 3871# When building target libraries, except in a Canadian cross, we use
3872# the same toolchain as the compiler we just built.
3873COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3874COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3875COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3876if test $host = $build; then
3877 case " $configdirs " in
3878 *" gcc "*)
3879 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3880 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3881 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3882 ;;
3883 esac
3884fi
3885
3886AC_SUBST(COMPILER_AS_FOR_TARGET)
3887AC_SUBST(COMPILER_LD_FOR_TARGET)
3888AC_SUBST(COMPILER_NM_FOR_TARGET)
3889
ee03dc5e
AO		 3890AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3891AC_ARG_ENABLE(maintainer-mode,
33e39b66
AS		 3892[AS_HELP_STRING([--enable-maintainer-mode],
3893 [enable make rules and dependencies not useful
3894 (and sometimes confusing) to the casual installer])],
ee03dc5e
AO		 3895 USE_MAINTAINER_MODE=$enableval,
3896 USE_MAINTAINER_MODE=no)
3897AC_MSG_RESULT($USE_MAINTAINER_MODE)
3898AC_SUBST(MAINTAINER_MODE_TRUE)
3899AC_SUBST(MAINTAINER_MODE_FALSE)
3900if test "$USE_MAINTAINER_MODE" = yes; then
3901 MAINTAINER_MODE_TRUE=
3902 MAINTAINER_MODE_FALSE='#'
3903else
3904 MAINTAINER_MODE_TRUE='#'
3905 MAINTAINER_MODE_FALSE=
3906fi
3907MAINT=$MAINTAINER_MODE_TRUE
3908AC_SUBST(MAINT)dnl
3909
2805b53a
NN		 3910# ---------------------
3911# GCC bootstrap support
3912# ---------------------
3913
3914# Stage specific cflags for build.
3915stage1_cflags="-g"
3916case $build in
3917 vax-*-*)
3918 case ${GCC} in
3919 yes) stage1_cflags="-g -Wa,-J" ;;
3920 *) stage1_cflags="-g -J" ;;
3921 esac ;;
2805b53a 3922esac
0b50988a 3923
2805b53a
NN		 3924AC_SUBST(stage1_cflags)
3925
8efea775
PB		 3926# Enable --enable-checking in stage1 of the compiler.
3927AC_ARG_ENABLE(stage1-checking,
33e39b66
AS		 3928[AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3929 [choose additional checking for stage1 of the compiler])],
8efea775 3930[stage1_checking=--enable-checking=${enable_stage1_checking}],
e643dc23 3931[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
c10b5ea0
JJ		 3932 # For --disable-checking or implicit --enable-checking=release, avoid
3933 # setting --enable-checking=gc in the default stage1 checking for LTO
3934 # bootstraps. See PR62077.
c10b5ea0
JJ		 3935 case $BUILD_CONFIG in
3936 *lto*)
7db11a5a
JJ		 3937 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3938 *)
3939 stage1_checking=--enable-checking=yes,types;;
c10b5ea0 3940 esac
7db11a5a
JJ		 3941 if test "x$enable_checking" = x && \
3942 test -d ${srcdir}/gcc && \
3943 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
c100769b 3944 stage1_checking=--enable-checking=yes,types,extra
7db11a5a 3945 fi
8efea775 3946else
e643dc23 3947 stage1_checking=--enable-checking=$enable_checking,types
8efea775
PB		 3948fi])
3949AC_SUBST(stage1_checking)
3950
2805b53a 3951# Enable -Werror in bootstrap stage2 and later.
2805b53a 3952AC_ARG_ENABLE(werror,
33e39b66 3953[AS_HELP_STRING([--enable-werror],
afd88efc
ML		 3954 [enable -Werror in bootstrap stage2 and later])],
3955[
09a9c095
NN		 3956case ${enable_werror} in
3957 yes) stage2_werror_flag="--enable-werror-always" ;;
3958 *) stage2_werror_flag="" ;;
2805b53a 3959esac
afd88efc
ML		 3960],
3961[
01c712cb
ML		 3962if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3963 case $BUILD_CONFIG in
3964 bootstrap-debug)
3965 stage2_werror_flag="--enable-werror-always" ;;
3966 "")
3967 stage2_werror_flag="--enable-werror-always" ;;
3968 esac
3969fi
afd88efc 3970])
01c712cb 3971
09a9c095 3972AC_SUBST(stage2_werror_flag)
2805b53a 3973
f2689b09
SE		 3974# Specify what files to not compare during bootstrap.
3975
3976compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
1eee94d3
GM		 3977compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/M2Version*"
3978compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/SYSTEM*"
3979compare_exclusions="$compare_exclusions | gcc/m2/gm2version*"
f2689b09
SE		 3980case "$target" in
3981 hppa*64*-*-hpux*) ;;
4f943869 3982 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
f2689b09
SE		 3983esac
3984AC_SUBST(compare_exclusions)
3985
3e54529c
RW		 3986AC_CONFIG_FILES([Makefile],
3987 [sed "$extrasub_build" Makefile |
3988 sed "$extrasub_host" |
3989 sed "$extrasub_target" > mf$$
3990 mv -f mf$$ Makefile],
3991 [extrasub_build="$extrasub_build"
3992 extrasub_host="$extrasub_host"
3993 extrasub_target="$extrasub_target"])
3994AC_OUTPUT
Mirror of https://gcc.gnu.org/git/gcc.git