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c++: Ensure !!var is not an lvalue [PR107065]
[gcc.git] / configure.ac
CommitLineData
beeaf216 1# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
ec8fd1c0 2# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
88252529 3# 2014, 2015, 2016, 2019, 2022 Free Software Foundation, Inc.
6599da04
JM		 4#
5# This file is free software; you can redistribute it and/or modify it
6# under the terms of the GNU General Public License as published by
309c24a9 7# the Free Software Foundation; either version 3 of the License, or
6599da04
JM		 8# (at your option) any later version.
9#
10# This program is distributed in the hope that it will be useful, but
11# WITHOUT ANY WARRANTY; without even the implied warranty of
12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13# General Public License for more details.
14#
15# You should have received a copy of the GNU General Public License
309c24a9
JJ		 16# along with this program; see the file COPYING3. If not see
17# <http://www.gnu.org/licenses/>.
6599da04
JM		 18
19##############################################################################
671aa708
NN		 20### WARNING: this file contains embedded tabs. Do not run untabify on this file.
21
7142fb32
PB		 22m4_include(config/acx.m4)
23m4_include(config/override.m4)
38d24731 24m4_include(config/proginstall.m4)
7413962d 25m4_include(config/elf.m4)
ffac9597 26m4_include(config/ax_cxx_compile_stdcxx.m4)
592c90ff
KG		 27m4_include([libtool.m4])
28m4_include([ltoptions.m4])
29m4_include([ltsugar.m4])
30m4_include([ltversion.m4])
31m4_include([lt~obsolete.m4])
33ad93b9 32m4_include([config/isl.m4])
ad6717df 33
671aa708 34AC_INIT(move-if-change)
0115d4a3 35AC_DISABLE_OPTION_CHECKING
1c710c3c 36
ad33ff57
RW		 37progname=$0
38# if PWD already has a value, it is probably wrong.
39if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
40
41# Export original configure arguments for use by sub-configures.
42# Quote arguments with shell meta charatcers.
43TOPLEVEL_CONFIGURE_ARGUMENTS=
44set -- "$progname" "$@"
45for ac_arg
46do
47 case "$ac_arg" in
48 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
49 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
50 # if the argument is of the form -foo=baz, quote the baz part only
51 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
52 *) ;;
53 esac
54 # Add the quoted argument to the list.
55 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
56done
57if test "$silent" = yes; then
58 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
59fi
60# Remove the initial space we just introduced and, as these will be
61# expanded by make, quote '$'.
62TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
63AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
64
1c710c3c
DJ		 65# Find the build, host, and target systems.
66ACX_NONCANONICAL_BUILD
67ACX_NONCANONICAL_HOST
68ACX_NONCANONICAL_TARGET
69
70dnl Autoconf 2.5x and later will set a default program prefix if
71dnl --target was used, even if it was the same as --host. Disable
72dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
73dnl to take effect.
74test "$host_noncanonical" = "$target_noncanonical" &&
75 test "$program_prefix$program_suffix$program_transform_name" = \
76 NONENONEs,x,x, &&
77 program_transform_name=s,y,y,
78
671aa708
NN		 79AC_CANONICAL_SYSTEM
80AC_ARG_PROGRAM
81
1c710c3c 82m4_pattern_allow([^AS_FOR_TARGET$])dnl
0999159b 83m4_pattern_allow([^AS_FOR_BUILD$])dnl
1c710c3c 84
775956d0
NN		 85# Get 'install' or 'install-sh' and its variants.
86AC_PROG_INSTALL
ad6717df 87ACX_PROG_LN
148907ea 88AC_PROG_LN_S
87264276
PB		 89AC_PROG_SED
90AC_PROG_AWK
775956d0 91
fc45f3fe
DJ		 92srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
93
94# We pass INSTALL explicitly to sub-makes. Make sure that it is not
95# a relative path.
96if test "$INSTALL" = "${srcdir}/install-sh -c"; then
97 INSTALL="${srcpwd}/install-sh -c"
98fi
99
671aa708
NN		 100# Set srcdir to "." if that's what it is.
101# This is important for multilib support.
102pwd=`${PWDCMD-pwd}`
671aa708
NN		 103if test "${pwd}" = "${srcpwd}" ; then
104 srcdir=.
105fi
106
107topsrcdir=$srcpwd
6599da04 108
4977bab6 109extra_host_args=
afabd8e6 110
6599da04
JM		 111### To add a new directory to the tree, first choose whether it is a target
112### or a host dependent tool. Then put it into the appropriate list
4977bab6
ZW		 113### (library or tools, host or target), doing a dependency sort.
114
115# Subdirs will be configured in the order listed in build_configdirs,
116# configdirs, or target_configdirs; see the serialization section below.
117
118# Dependency sorting is only needed when *configuration* must be done in
119# a particular order. In all cases a dependency should be specified in
120# the Makefile, whether or not it's implicitly specified here.
6599da04 121
4977bab6
ZW		 122# Double entries in build_configdirs, configdirs, or target_configdirs may
123# cause circular dependencies and break everything horribly.
6599da04 124
23f6b2f9
PB		 125# these library is used by various programs built for the build
126# environment
127#
929315a9 128build_libs="build-libiberty build-libcpp"
23f6b2f9
PB		 129
130# these tools are built for the build environment
85bfb75e 131build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
23f6b2f9 132
6599da04 133# these libraries are used by various programs built for the host environment
eae1a5d4 134#f
3de627ff 135host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libcody libdecnumber gmp mpfr mpc isl libiconv libctf libsframe"
6599da04 136
6599da04
JM		 137# these tools are built for the host environment
138# Note, the powerpc-eabi build depends on sim occurring before gdb in order to
139# know that we are building the simulator.
4977bab6
ZW		 140# binutils, gas and ld appear in that order because it makes sense to run
141# "make check" in that particular order.
38e3d868 142# If --enable-gold is used, "gold" may replace "ld".
1eee94d3 143host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gdbserver gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gm2tools gotools c++tools"
5d4a5ee6 144
6599da04
JM		 145# these libraries are built for the target environment, and are built after
146# the host libraries and the host tools (which may be a cross compiler)
8499116a 147# Note that libiberty is not a target library.
291f172e 148target_libraries="target-libgcc \
eff02e4f 149 target-libbacktrace \
5d4a5ee6
JL		 150 target-libgloss \
151 target-newlib \
6d3b5aea 152 target-libgomp \
48310492 153 target-libatomic \
0a35513e 154 target-libitm \
cb543528 155 target-libstdc++-v3 \
f35db108 156 target-libsanitizer \
2077db1b 157 target-libvtv \
77008252 158 target-libssp \
1ec601bf 159 target-libquadmath \
6de9cd9a 160 target-libgfortran \
012447ea 161 target-libffi \
d9cdb878 162 target-libobjc \
632e2a07 163 target-libada \
1eee94d3 164 target-libgm2 \
b4c522fa 165 target-libgo \
bb50312e
IB		 166 target-libphobos \
167 target-zlib"
6599da04 168
4dbda6f0
NN		 169# these tools are built using the target libraries, and are intended to
170# run only in the target environment
6599da04 171#
4dbda6f0 172# note: any program that *uses* libraries that are in the "target_libraries"
1bcce263 173# list belongs in this list.
6599da04 174#
85bfb75e 175target_tools="target-rda"
6599da04
JM		 176
177################################################################################
178
6599da04
JM		 179## All tools belong in one of the four categories, and are assigned above
180## We assign ${configdirs} this way to remove all embedded newlines. This
181## is important because configure will choke if they ever get through.
182## ${configdirs} is directories we build using the host tools.
183## ${target_configdirs} is directories we build using the target tools.
6599da04 184configdirs=`echo ${host_libs} ${host_tools}`
4dbda6f0 185target_configdirs=`echo ${target_libraries} ${target_tools}`
71b5d516 186build_configdirs=`echo ${build_libs} ${build_tools}`
8b87bb96 187
ac9e6043 188m4_divert_text([PARSE_ARGS],
87841584
AM		 189[case $srcdir in
190 *" "*)
191m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
192 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
193m4_popdef([AS_MESSAGE_LOG_FD])dnl
194 ;;
195esac
196ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
ac9e6043
RW		 197])
198
6599da04
JM		 199################################################################################
200
6599da04
JM		 201srcname="gnu development package"
202
203# This gets set non-empty for some net releases of packages.
204appdirs=""
205
e1848dde
NN		 206# Define is_cross_compiler to save on calls to 'test'.
207is_cross_compiler=
208if test x"${host}" = x"${target}" ; then
209 is_cross_compiler=no
210else
211 is_cross_compiler=yes
212fi
213
b4acb5ef 214# Find the build and target subdir names.
8b87bb96 215GCC_TOPLEV_SUBDIRS
0db770bd
RW		 216# Be sure to cover against remnants of an in-tree build.
217if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
218 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
219Use a pristine source tree when building in a separate tree])
220fi
f653f0ab 221
55380b08
NN		 222# Skipdirs are removed silently.
223skipdirs=
224# Noconfigdirs are removed loudly.
225noconfigdirs=""
6599da04 226
55380b08
NN		 227use_gnu_ld=
228# Make sure we don't let GNU ld be added if we didn't want it.
229if test x$with_gnu_ld = xno ; then
230 use_gnu_ld=no
5afab7ad 231 noconfigdirs="$noconfigdirs ld gold"
6599da04
JM		 232fi
233
55380b08
NN		 234use_gnu_as=
235# Make sure we don't let GNU as be added if we didn't want it.
236if test x$with_gnu_as = xno ; then
237 use_gnu_as=no
238 noconfigdirs="$noconfigdirs gas"
6599da04
JM		 239fi
240
d7f09764 241use_included_zlib=
a05c2c75
L		 242AC_ARG_WITH(system-zlib,
243[AS_HELP_STRING([--with-system-zlib], [use installed libz])])
d7f09764
DN		 244# Make sure we don't let ZLIB be added if we didn't want it.
245if test x$with_system_zlib = xyes ; then
246 use_included_zlib=no
247 noconfigdirs="$noconfigdirs zlib"
248fi
249
36ba9851
ДП		 250# Don't compile the bundled readline/libreadline.a if --with-system-readline
251# is provided.
252if test x$with_system_readline = xyes ; then
253 noconfigdirs="$noconfigdirs readline"
254fi
255
55380b08
NN		 256# some tools are so dependent upon X11 that if we're not building with X,
257# it's not even worth trying to configure, much less build, that tool.
6599da04 258
55380b08
NN		 259case ${with_x} in
260 yes | "") ;; # the default value for this tree is that X11 is available
423ce3eb 261 no)
b4f96efe 262 skipdirs="${skipdirs} tk itcl libgui"
423ce3eb
NN		 263 # We won't be able to build gdbtk without X.
264 enable_gdbtk=no
265 ;;
55380b08
NN		 266 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
267esac
6599da04 268
1bcce263 269# Some are only suitable for cross toolchains.
95ddd785
NN		 270# Remove these if host=target.
271cross_only="target-libgloss target-newlib target-opcodes"
6599da04 272
55380b08
NN		 273case $is_cross_compiler in
274 no) skipdirs="${skipdirs} ${cross_only}" ;;
55380b08 275esac
6599da04 276
0c639b89
DD		 277# If both --with-headers and --with-libs are specified, default to
278# --without-newlib.
9082a750
MR		 279if test x"${with_headers}" != x && test x"${with_headers}" != xno \
280 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
0c639b89
DD		 281 if test x"${with_newlib}" = x ; then
282 with_newlib=no
283 fi
284fi
285
286# Recognize --with-newlib/--without-newlib.
287case ${with_newlib} in
288 no) skipdirs="${skipdirs} target-newlib" ;;
289 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
290esac
291
85c64bbe
BS		 292AC_ARG_ENABLE(as-accelerator-for,
293[AS_HELP_STRING([--enable-as-accelerator-for=ARG],
294 [build as offload target compiler.
4b4f2e35 295 Specify offload host triple by ARG])])
85c64bbe
BS		 296
297AC_ARG_ENABLE(offload-targets,
298[AS_HELP_STRING([--enable-offload-targets=LIST],
299 [enable offloading to devices from comma-separated LIST of
300 TARGET[=DIR]. Use optional path to find offload target compiler
301 during the build])],
302[
303 if test x"$enable_offload_targets" = x; then
304 AC_MSG_ERROR([no offload targets specified])
305 fi
306], [enable_offload_targets=])
307
fe5bfa67
TB		 308AC_ARG_ENABLE(offload-defaulted,
309[AS_HELP_STRING([--enable-offload-defaulted]
310 [If enabled, configured but not installed offload compilers and
311 libgomp plugins are silently ignored. Useful for distribution
312 compilers where those are in separate optional packages.])],
313[enable_offload_defaulted=$enableval],
314[enable_offload_defaulted=])
315
21539e2e
MK		 316# Handle --enable-gold, --enable-ld.
317# --disable-gold [--enable-ld]
318# Build only ld. Default option.
9580395f
L		 319# --enable-gold [--enable-ld]
320# Build both gold and ld. Install gold as "ld.gold", install ld
321# as "ld.bfd" and "ld".
322# --enable-gold=default [--enable-ld]
21539e2e
MK		 323# Build both gold and ld. Install gold as "ld.gold" and "ld",
324# install ld as "ld.bfd".
325# --enable-gold[=default] --disable-ld
326# Build only gold, which is then installed as both "ld.gold" and "ld".
327# --enable-gold --enable-ld=default
9580395f
L		 328# Build both gold (installed as "ld.gold") and ld (installed as "ld"
329# and ld.bfd).
21539e2e
MK		 330# In other words, ld is default
331# --enable-gold=default --enable-ld=default
332# Error.
333
334default_ld=
5afab7ad 335AC_ARG_ENABLE(gold,
33e39b66
AS		 336[AS_HELP_STRING([[--enable-gold[=ARG]]],
337 [build gold @<:@ARG={default,yes,no}@:>@])],
5afab7ad
ILT		 338ENABLE_GOLD=$enableval,
339ENABLE_GOLD=no)
21539e2e
MK		 340case "${ENABLE_GOLD}" in
341 yes|default)
38e3d868
RM		 342 # Check for ELF target.
343 is_elf=no
344 case "${target}" in
345 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
0e76460f 346 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
8c6d158a 347 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
ff4b7a7e 348 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
38e3d868
RM		 349 case "${target}" in
350 *-*-linux*aout* | *-*-linux*oldld*)
351 ;;
352 *)
353 is_elf=yes
354 ;;
355 esac
356 esac
357
358 if test "$is_elf" = "yes"; then
359 # Check for target supported by gold.
5afab7ad 360 case "${target}" in
7705dfd1 361 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
fc259b52 362 | aarch64*-*-* | mips*-*-* | s390*-*-* | loongarch*-*-*)
21539e2e
MK		 363 configdirs="$configdirs gold"
364 if test x${ENABLE_GOLD} = xdefault; then
365 default_ld=gold
366 fi
38e3d868 367 ENABLE_GOLD=yes
5afab7ad
ILT		 368 ;;
369 esac
38e3d868
RM		 370 fi
371 ;;
372 no)
373 ;;
374 *)
375 AC_MSG_ERROR([invalid --enable-gold argument])
376 ;;
21539e2e
MK		 377esac
378
379AC_ARG_ENABLE(ld,
33e39b66
AS		 380[AS_HELP_STRING([[--enable-ld[=ARG]]],
381 [build ld @<:@ARG={default,yes,no}@:>@])],
21539e2e
MK		 382ENABLE_LD=$enableval,
383ENABLE_LD=yes)
384
385case "${ENABLE_LD}" in
386 default)
9580395f 387 if test x${default_ld} != x; then
21539e2e
MK		 388 AC_MSG_ERROR([either gold or ld can be the default ld])
389 fi
390 ;;
391 yes)
392 ;;
393 no)
394 if test x${ENABLE_GOLD} != xyes; then
395 AC_MSG_WARN([neither ld nor gold are enabled])
396 fi
397 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
398 ;;
399 *)
400 AC_MSG_ERROR([invalid --enable-ld argument])
401 ;;
402esac
5afab7ad 403
78edb32f
L		 404# PR gas/19109
405# Decide the default method for compressing debug sections.
406# Provide a configure time option to override our default.
407AC_ARG_ENABLE(compressed_debug_sections,
324402a0 408[AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
78edb32f
L		 409 [Enable compressed debug sections for gas, gold or ld by
410 default])],
411[
412 if test x"$enable_compressed_debug_sections" = xyes; then
413 AC_MSG_ERROR([no program with compressed debug sections specified])
414 fi
415], [enable_compressed_debug_sections=])
416
6599da04
JM		 417# Configure extra directories which are host specific
418
419case "${host}" in
55380b08 420 *-cygwin*)
4977bab6 421 configdirs="$configdirs libtermcap" ;;
6599da04
JM		 422esac
423
4fab7234
HPN		 424# A target can indicate whether a language isn't supported for some reason.
425# Only spaces may be used in this macro; not newlines or tabs.
426unsupported_languages=
427
6599da04
JM		 428# Remove more programs from consideration, based on the host or
429# target this usually means that a port of the program doesn't
430# exist yet.
431
6599da04 432case "${host}" in
111eeb6e 433 i[[3456789]]86-*-msdosdjgpp*)
c9bdb152 434 noconfigdirs="$noconfigdirs tcl tk itcl"
5d4a5ee6 435 ;;
6599da04
JM		 436esac
437
6de9cd9a 438
87e6d9dc
TB		 439AC_ARG_ENABLE(libquadmath,
440AS_HELP_STRING([--disable-libquadmath],
441 [do not build libquadmath directory]),
442ENABLE_LIBQUADMATH=$enableval,
443ENABLE_LIBQUADMATH=yes)
444if test "${ENABLE_LIBQUADMATH}" = "no" ; then
445 noconfigdirs="$noconfigdirs target-libquadmath"
446fi
447
448
449AC_ARG_ENABLE(libquadmath-support,
450AS_HELP_STRING([--disable-libquadmath-support],
451 [disable libquadmath support for Fortran]),
452ENABLE_LIBQUADMATH_SUPPORT=$enableval,
453ENABLE_LIBQUADMATH_SUPPORT=yes)
454enable_libquadmath_support=
455if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
456 enable_libquadmath_support=no
457fi
458
459
d9cdb878 460AC_ARG_ENABLE(libada,
33e39b66 461[AS_HELP_STRING([--enable-libada], [build libada directory])],
d9cdb878
AC		 462ENABLE_LIBADA=$enableval,
463ENABLE_LIBADA=yes)
464if test "${ENABLE_LIBADA}" != "yes" ; then
5395b47b 465 noconfigdirs="$noconfigdirs gnattools"
d9cdb878
AC		 466fi
467
1eee94d3
GM		 468AC_ARG_ENABLE(libgm2,
469[AS_HELP_STRING([--enable-libgm2], [build libgm2 directory])],
470ENABLE_LIBGM2=$enableval,
471ENABLE_LIBGM2=no)
472if test "${ENABLE_LIBGM2}" != "yes" ; then
473 noconfigdirs="$noconfigdirs gm2tools"
474fi
475
ef0087a7 476AC_ARG_ENABLE(libssp,
33e39b66 477[AS_HELP_STRING([--enable-libssp], [build libssp directory])],
ef0087a7
KH		 478ENABLE_LIBSSP=$enableval,
479ENABLE_LIBSSP=yes)
ef0087a7 480
2588b26e
RM		 481AC_ARG_ENABLE(libstdcxx,
482AS_HELP_STRING([--disable-libstdcxx],
483 [do not build libstdc++-v3 directory]),
484ENABLE_LIBSTDCXX=$enableval,
485ENABLE_LIBSTDCXX=default)
486[if test "${ENABLE_LIBSTDCXX}" = "no" ; then
1007a55c 487 noconfigdirs="$noconfigdirs target-libstdc++-v3"
2588b26e
RM		 488fi]
489
44a7d18d 490# Enable libgomp by default on hosted POSIX systems, and a few others.
27079765 491if test x$enable_libgomp = x ; then
953ff289 492 case "${target}" in
416ac4d4 493 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
953ff289 494 ;;
8c6d158a 495 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
953ff289 496 ;;
b24513a1 497 *-*-solaris2* | *-*-hpux11*)
953ff289 498 ;;
cac90078 499 *-*-darwin* | *-*-aix*)
953ff289 500 ;;
29b1533a 501 nvptx*-*-* | amdgcn*-*-*)
44a7d18d 502 ;;
953ff289
DN		 503 *)
504 noconfigdirs="$noconfigdirs target-libgomp"
505 ;;
506 esac
27079765 507fi
953ff289 508
48310492
RH		 509# Disable libatomic on unsupported systems.
510if test -d ${srcdir}/libatomic; then
511 if test x$enable_libatomic = x; then
512 AC_MSG_CHECKING([for libatomic support])
513 if (srcdir=${srcdir}/libatomic; \
514 . ${srcdir}/configure.tgt; \
515 test -n "$UNSUPPORTED")
516 then
517 AC_MSG_RESULT([no])
518 noconfigdirs="$noconfigdirs target-libatomic"
519 else
520 AC_MSG_RESULT([yes])
521 fi
522 fi
523fi
524
e948157d
RH		 525# Disable libitm on unsupported systems.
526if test -d ${srcdir}/libitm; then
527 if test x$enable_libitm = x; then
528 AC_MSG_CHECKING([for libitm support])
529 if (srcdir=${srcdir}/libitm; \
530 . ${srcdir}/configure.tgt; \
531 test -n "$UNSUPPORTED")
532 then
533 AC_MSG_RESULT([no])
534 noconfigdirs="$noconfigdirs target-libitm"
535 else
536 AC_MSG_RESULT([yes])
537 fi
538 fi
0a35513e
AH		 539fi
540
93bf5390
RH		 541# Disable libsanitizer on unsupported systems.
542if test -d ${srcdir}/libsanitizer; then
543 if test x$enable_libsanitizer = x; then
544 AC_MSG_CHECKING([for libsanitizer support])
545 if (srcdir=${srcdir}/libsanitizer; \
546 . ${srcdir}/configure.tgt; \
547 test -n "$UNSUPPORTED")
548 then
549 AC_MSG_RESULT([no])
550 noconfigdirs="$noconfigdirs target-libsanitizer"
551 else
552 AC_MSG_RESULT([yes])
553 fi
554 fi
555fi
556
2077db1b
CT		 557# Disable libvtv on unsupported systems.
558if test -d ${srcdir}/libvtv; then
559 if test x$enable_libvtv = x; then
560 AC_MSG_CHECKING([for libvtv support])
561 if (srcdir=${srcdir}/libvtv; \
562 . ${srcdir}/configure.tgt; \
1e74b850 563 test "$VTV_SUPPORTED" != "yes")
2077db1b
CT		 564 then
565 AC_MSG_RESULT([no])
566 noconfigdirs="$noconfigdirs target-libvtv"
567 else
568 AC_MSG_RESULT([yes])
569 fi
570 fi
571fi
572
d7a29167
DE		 573# Disable libquadmath for some systems.
574case "${target}" in
e7fae550
DE		 575 avr-*-*)
576 noconfigdirs="$noconfigdirs target-libquadmath"
577 ;;
d7a29167
DE		 578 # libquadmath is unused on AIX and libquadmath build process use of
579 # LD_LIBRARY_PATH can break AIX bootstrap.
580 powerpc-*-aix* | rs6000-*-aix*)
581 noconfigdirs="$noconfigdirs target-libquadmath"
582 ;;
583esac
584
1e9e0e23
JM		 585# Disable libssp for some systems.
586case "${target}" in
587 avr-*-*)
b318fb4b 588 # No hosted I/O support.
1e9e0e23
JM		 589 noconfigdirs="$noconfigdirs target-libssp"
590 ;;
91dfef96
JM		 591 bpf-*-*)
592 noconfigdirs="$noconfigdirs target-libssp"
593 ;;
1e9e0e23
JM		 594 powerpc-*-aix* | rs6000-*-aix*)
595 noconfigdirs="$noconfigdirs target-libssp"
596 ;;
8d2af3a2
DD		 597 pru-*-*)
598 # No hosted I/O support.
599 noconfigdirs="$noconfigdirs target-libssp"
600 ;;
85b8555e
DD		 601 rl78-*-*)
602 # libssp uses a misaligned load to trigger a fault, but the RL78
603 # doesn't fault for those - instead, it gives a build-time error
604 # for explicit misaligned loads.
605 noconfigdirs="$noconfigdirs target-libssp"
606 ;;
0969ec7d
EB		 607 visium-*-*)
608 # No hosted I/O support.
609 noconfigdirs="$noconfigdirs target-libssp"
610 ;;
1e9e0e23
JM		 611esac
612
1e9e0e23 613# Disable libstdc++-v3 for some systems.
67a1cb2a 614# Allow user to override this if they pass --enable-libstdcxx
2588b26e
RM		 615if test "${ENABLE_LIBSTDCXX}" = "default" ; then
616 case "${target}" in
617 *-*-vxworks*)
618 # VxWorks uses the Dinkumware C++ library.
619 noconfigdirs="$noconfigdirs target-libstdc++-v3"
620 ;;
afa3d80e
TS		 621 amdgcn*-*-*)
622 # Not ported/fails to build when using newlib.
623 noconfigdirs="$noconfigdirs target-libstdc++-v3"
624 ;;
2588b26e
RM		 625 arm*-wince-pe*)
626 # the C++ libraries don't build on top of CE's C libraries
627 noconfigdirs="$noconfigdirs target-libstdc++-v3"
628 ;;
629 avr-*-*)
630 noconfigdirs="$noconfigdirs target-libstdc++-v3"
631 ;;
91dfef96
JM		 632 bpf-*-*)
633 noconfigdirs="$noconfigdirs target-libstdc++-v3"
634 ;;
fef939d6
JB		 635 ft32-*-*)
636 noconfigdirs="$noconfigdirs target-libstdc++-v3"
637 ;;
2588b26e
RM		 638 esac
639fi
1e9e0e23 640
91dfef96
JM		 641# Disable C++ on systems where it is known to not work.
642# For testing, you can override this with --enable-languages=c++.
643case ,${enable_languages}, in
644 *,c++,*)
645 ;;
646 *)
647 case "${target}" in
648 bpf-*-*)
649 unsupported_languages="$unsupported_languages c++"
650 ;;
651 esac
652 ;;
653esac
654
655# Disable Objc on systems where it is known to not work.
656# For testing, you can override this with --enable-languages=objc.
657case ,${enable_languages}, in
658 *,objc,*)
659 ;;
660 *)
661 case "${target}" in
662 bpf-*-*)
663 unsupported_languages="$unsupported_languages objc"
664 ;;
665 esac
666 ;;
667esac
668
260eedb9
IB		 669# Disable D on systems where it is known to not work.
670# For testing, you can override this with --enable-languages=d.
671case ,${enable_languages}, in
672 *,d,*)
673 ;;
674 *)
675 case "${target}" in
91dfef96 676 bpf-*-*)
260eedb9
IB		 677 unsupported_languages="$unsupported_languages d"
678 ;;
679 esac
680 ;;
681esac
682
683# Disable libphobos on unsupported systems.
684# For testing, you can override this with --enable-libphobos.
685if test -d ${srcdir}/libphobos; then
686 if test x$enable_libphobos = x; then
687 AC_MSG_CHECKING([for libphobos support])
688 if (srcdir=${srcdir}/libphobos; \
689 . ${srcdir}/configure.tgt; \
7d31d331 690 test "$LIBPHOBOS_SUPPORTED" != "yes")
260eedb9
IB		 691 then
692 AC_MSG_RESULT([no])
693 noconfigdirs="$noconfigdirs target-libphobos"
694 else
695 AC_MSG_RESULT([yes])
696 fi
697 fi
698fi
699
1e9e0e23
JM		 700# Disable Fortran for some systems.
701case "${target}" in
702 mmix-*-*)
703 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
704 unsupported_languages="$unsupported_languages fortran"
705 ;;
91dfef96
JM		 706 bpf-*-*)
707 unsupported_languages="$unsupported_languages fortran"
708 ;;
1e9e0e23
JM		 709esac
710
012447ea
JJ		 711# Disable libffi for some systems.
712case "${target}" in
713 powerpc-*-darwin*)
714 ;;
715 i[[3456789]]86-*-darwin*)
716 ;;
717 x86_64-*-darwin[[912]]*)
718 ;;
719 *-*-darwin*)
720 noconfigdirs="$noconfigdirs target-libffi"
721 ;;
722 *-*-netware*)
723 noconfigdirs="$noconfigdirs target-libffi"
724 ;;
725 *-*-phoenix*)
726 noconfigdirs="$noconfigdirs target-libffi"
727 ;;
728 *-*-rtems*)
729 noconfigdirs="$noconfigdirs target-libffi"
730 ;;
731 *-*-tpf*)
732 noconfigdirs="$noconfigdirs target-libffi"
733 ;;
734 *-*-uclinux*)
735 noconfigdirs="$noconfigdirs target-libffi"
736 ;;
737 *-*-vxworks*)
738 noconfigdirs="$noconfigdirs target-libffi"
739 ;;
b20e7532
AT		 740 aarch64*-*-freebsd*)
741 noconfigdirs="$noconfigdirs target-libffi"
742 ;;
012447ea
JJ		 743 alpha*-*-*vms*)
744 noconfigdirs="$noconfigdirs target-libffi"
745 ;;
746 arm*-*-freebsd*)
747 noconfigdirs="$noconfigdirs target-libffi"
748 ;;
749 arm-wince-pe)
750 noconfigdirs="$noconfigdirs target-libffi"
751 ;;
752 arm*-*-symbianelf*)
753 noconfigdirs="$noconfigdirs target-libffi"
754 ;;
91dfef96
JM		 755 bpf-*-*)
756 noconfigdirs="$noconfigdirs target-libffi"
757 ;;
012447ea
JJ		 758 cris-*-* | crisv32-*-*)
759 case "${target}" in
760 *-*-linux*)
761 ;;
762 *) # See PR46792 regarding target-libffi.
763 noconfigdirs="$noconfigdirs target-libffi";;
764 esac
765 ;;
766 hppa*64*-*-hpux*)
767 noconfigdirs="$noconfigdirs target-libffi"
768 ;;
012447ea
JJ		 769 ia64*-*-*vms*)
770 noconfigdirs="$noconfigdirs target-libffi"
771 ;;
772 i[[3456789]]86-w64-mingw*)
773 noconfigdirs="$noconfigdirs target-libffi"
774 ;;
775 i[[3456789]]86-*-mingw*)
776 noconfigdirs="$noconfigdirs target-libffi"
777 ;;
778 x86_64-*-mingw*)
779 noconfigdirs="$noconfigdirs target-libffi"
780 ;;
781 mmix-*-*)
782 noconfigdirs="$noconfigdirs target-libffi"
783 ;;
784 powerpc-*-aix*)
012447ea
JJ		 785 ;;
786 rs6000-*-aix*)
012447ea
JJ		 787 ;;
788 ft32-*-*)
789 noconfigdirs="$noconfigdirs target-libffi"
790 ;;
791 *-*-lynxos*)
792 noconfigdirs="$noconfigdirs target-libffi"
793 ;;
794esac
795
796# Disable the go frontend on systems where it is known to not work. Please keep
797# this in sync with contrib/config-list.mk.
798case "${target}" in
91dfef96 799*-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
012447ea
JJ		 800 unsupported_languages="$unsupported_languages go"
801 ;;
802esac
803
f9d09df0
TT		 804# Only allow gdbserver on some systems.
805if test -d ${srcdir}/gdbserver; then
806 if test x$enable_gdbserver = x; then
807 AC_MSG_CHECKING([for gdbserver support])
808 if (srcdir=${srcdir}/gdbserver; \
809 . ${srcdir}/configure.srv; \
810 test -n "$UNSUPPORTED")
811 then
812 AC_MSG_RESULT([no])
813 noconfigdirs="$noconfigdirs gdbserver"
814 else
815 AC_MSG_RESULT([yes])
816 fi
817 fi
818fi
819
cdbc9e92
ILT		 820# Disable libgo for some systems where it is known to not work.
821# For testing, you can easily override this with --enable-libgo.
822if test x$enable_libgo = x; then
823 case "${target}" in
824 *-*-darwin*)
825 # PR 46986
826 noconfigdirs="$noconfigdirs target-libgo"
827 ;;
828 *-*-cygwin* | *-*-mingw*)
829 noconfigdirs="$noconfigdirs target-libgo"
830 ;;
91dfef96
JM		 831 bpf-*-*)
832 noconfigdirs="$noconfigdirs target-libgo"
833 ;;
cdbc9e92
ILT		 834 esac
835fi
836
c03353e2
RIL		 837# Default libgloss CPU subdirectory.
838libgloss_dir="$target_cpu"
6de9cd9a 839
fbcf0dca
JM		 840case "${target}" in
841 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
842 libgloss_dir=wince
843 ;;
4dddfc74
YZ		 844 aarch64*-*-* )
845 libgloss_dir=aarch64
846 ;;
fbcf0dca
JM		 847 arm*-*-*)
848 libgloss_dir=arm
849 ;;
850 cris-*-* | crisv32-*-*)
851 libgloss_dir=cris
852 ;;
853 hppa*-*-*)
854 libgloss_dir=pa
855 ;;
856 i[[3456789]]86-*-*)
857 libgloss_dir=i386
858 ;;
c6c0594e 859 loongarch*-*-*)
860 libgloss_dir=loongarch
861 ;;
fbcf0dca
JM		 862 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
863 libgloss_dir=m68hc11
864 ;;
865 m68*-*-* | fido-*-*)
866 libgloss_dir=m68k
867 ;;
868 mips*-*-*)
869 libgloss_dir=mips
870 ;;
871 powerpc*-*-*)
872 libgloss_dir=rs6000
873 ;;
8d2af3a2
DD		 874 pru-*-*)
875 libgloss_dir=pru
876 ;;
fbcf0dca
JM		 877 sparc*-*-*)
878 libgloss_dir=sparc
879 ;;
880esac
881
6a789d5e 882# Disable newlib and libgloss for various target OSes.
6599da04 883case "${target}" in
6a789d5e
JM		 884 alpha*-dec-osf*)
885 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
886 ;;
887 i[[3456789]]86-*-linux*)
888 # This section makes it possible to build newlib natively on linux.
889 # If we are using a cross compiler then don't configure newlib.
890 if test x${is_cross_compiler} != xno ; then
891 noconfigdirs="$noconfigdirs target-newlib"
892 fi
893 noconfigdirs="$noconfigdirs target-libgloss"
894 # If we are not using a cross compiler, do configure newlib.
895 # Note however, that newlib will only be configured in this situation
896 # if the --with-newlib option has been given, because otherwise
897 # 'target-newlib' will appear in skipdirs.
898 ;;
899 i[[3456789]]86-*-rdos*)
900 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
901 ;;
902 sh*-*-pe|mips*-*-pe|arm-wince-pe)
903 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
904 ;;
905 sparc-*-sunos4*)
906 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
907 ;;
91dfef96
JM		 908 bpf-*-*)
909 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
910 ;;
6a789d5e
JM		 911 *-*-aix*)
912 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
913 ;;
914 *-*-beos*)
915 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
916 ;;
3fa03ff9 917 *-*-chorusos)
0036370f 918 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
3fa03ff9 919 ;;
6a789d5e
JM		 920 *-*-dragonfly*)
921 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
922 ;;
923 *-*-freebsd*)
924 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
925 ;;
926 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
927 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
928 ;;
929 *-*-lynxos*)
930 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
931 ;;
932 *-*-mingw*)
933 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
934 ;;
935 *-*-netbsd*)
936 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
937 ;;
938 *-*-netware*)
939 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
940 ;;
941 *-*-tpf*)
942 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
943 ;;
944 *-*-uclinux*)
945 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
946 ;;
947 *-*-vxworks*)
948 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
949 ;;
950esac
951
952case "${target}" in
953 *-*-chorusos)
954 ;;
3be96231
TG		 955 aarch64-*-darwin*)
956 noconfigdirs="$noconfigdirs ld gas gdb gprof"
957 noconfigdirs="$noconfigdirs sim target-rda"
958 ;;
7431c1a1
AS		 959 amdgcn*-*-*)
960 ;;
3be96231
TG		 961 arm-*-darwin*)
962 noconfigdirs="$noconfigdirs ld gas gdb gprof"
963 noconfigdirs="$noconfigdirs sim target-rda"
964 ;;
75eeae1a 965 powerpc-*-darwin*)
e1514c3f 966 noconfigdirs="$noconfigdirs ld gas gdb gprof"
9c8f9ec2 967 noconfigdirs="$noconfigdirs sim target-rda"
940cde4d 968 ;;
354ebf88
RW		 969 i[[3456789]]86-*-darwin*)
970 noconfigdirs="$noconfigdirs ld gprof"
971 noconfigdirs="$noconfigdirs sim target-rda"
972 ;;
973 x86_64-*-darwin[[912]]*)
0db3a858
TG		 974 noconfigdirs="$noconfigdirs ld gas gprof"
975 noconfigdirs="$noconfigdirs sim target-rda"
976 ;;
42c1cd8a
AT		 977 *-*-darwin*)
978 noconfigdirs="$noconfigdirs ld gas gdb gprof"
979 noconfigdirs="$noconfigdirs sim target-rda"
42c1cd8a 980 ;;
8c6d158a 981 *-*-dragonfly*)
8c6d158a 982 ;;
c3f84f61 983 *-*-freebsd*)
88252529 984 if test "x$with_gmp" = x \
c0d0a722 985 && ! test -d ${srcdir}/gmp \
6de9cd9a
DN		 986 && test -f /usr/local/include/gmp.h; then
987 with_gmp=/usr/local
988 fi
6de9cd9a 989 ;;
ef4e7569
US		 990 *-*-kaos*)
991 # Remove unsupported stuff on all kaOS configurations.
ef4e7569
US		 992 noconfigdirs="$noconfigdirs target-libgloss"
993 ;;
51584787 994 *-*-netbsd*)
51584787 995 ;;
61fec9ff 996 *-*-netware*)
6599da04 997 ;;
fd6487af
JS		 998 *-*-phoenix*)
999 noconfigdirs="$noconfigdirs target-libgloss"
1000 ;;
3fbc0b70 1001 *-*-rtems*)
2909494b 1002 noconfigdirs="$noconfigdirs target-libgloss"
3fbc0b70 1003 ;;
a8ba31f2
EC		 1004 # The tpf target doesn't support gdb yet.
1005 *-*-tpf*)
6a789d5e 1006 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
a8ba31f2 1007 ;;
5785c0ed 1008 *-*-uclinux*)
6a789d5e 1009 noconfigdirs="$noconfigdirs target-rda"
5785c0ed 1010 ;;
6599da04 1011 *-*-vxworks*)
6599da04 1012 ;;
b104e095 1013 alpha*-dec-osf*)
603606e7 1014 # ld works, but does not support shared libraries.
6599da04 1015 # gas doesn't generate exception information.
6a789d5e 1016 noconfigdirs="$noconfigdirs gas ld"
6599da04
JM		 1017 ;;
1018 alpha*-*-*vms*)
2909494b 1019 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
6599da04
JM		 1020 ;;
1021 alpha*-*-*)
1022 # newlib is not 64 bit ready
2909494b 1023 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1024 ;;
91dfef96
JM		 1025 bpf-*-*)
1026 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1027 ;;
3a685f6f 1028 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
b4f96efe 1029 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
3a685f6f 1030 ;;
2fd88f4f
AK		 1031 arc*-*-*)
1032 noconfigdirs="$noconfigdirs sim"
1033 ;;
6599da04 1034 arm-*-pe*)
2909494b 1035 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1036 ;;
5d4a5ee6 1037 arm-*-riscix*)
0036370f 1038 noconfigdirs="$noconfigdirs ld target-libgloss"
5d4a5ee6 1039 ;;
b588ae30
GJL		 1040 avr-*-*)
1041 if test x${with_avrlibc} != xno; then
1042 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1043 fi
1044 ;;
a5a438f5 1045 c4x-*-* | tic4x-*-*)
0036370f 1046 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1047 ;;
0036370f
JM		 1048 tic54x-*-*)
1049 noconfigdirs="$noconfigdirs target-libgloss gdb"
ab50d72b 1050 ;;
6599da04 1051 d10v-*-*)
0036370f 1052 noconfigdirs="$noconfigdirs target-libgloss"
d207ebef
JM		 1053 ;;
1054 d30v-*-*)
0036370f 1055 noconfigdirs="$noconfigdirs gdb"
6599da04 1056 ;;
09b5f8bf 1057 fr30-*-elf*)
2909494b 1058 noconfigdirs="$noconfigdirs gdb"
09b5f8bf 1059 ;;
a05c2c75
L		 1060 ft32-*-*)
1061 noconfigdirs="$noconfigdirs target-rda gprof"
1062 ;;
55f2d967 1063 moxie-*-*)
a05c2c75 1064 noconfigdirs="$noconfigdirs"
55f2d967 1065 ;;
ab50d72b 1066 h8300*-*-*)
2909494b 1067 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1068 ;;
6599da04 1069 h8500-*-*)
0036370f 1070 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1071 ;;
a05c2c75
L		 1072 hppa*64*-*-hpux*)
1073 noconfigdirs="$noconfigdirs gdb"
1074 ;;
4569f85e 1075 hppa*64*-*-linux*)
cdbff0ab 1076 ;;
56f8587a 1077 hppa*-*-linux*)
3e732ba0 1078 ;;
6599da04 1079 hppa*-*-*elf* | \
bae29210 1080 hppa*-*-lites* | \
66350331 1081 hppa*-*-openbsd* | \
bae29210 1082 hppa*64*-*-*)
6599da04 1083 ;;
c03353e2 1084 hppa*-*-pro*)
c03353e2 1085 ;;
6599da04 1086 hppa*-*-*)
2909494b 1087 noconfigdirs="$noconfigdirs ld"
d207ebef 1088 ;;
fb87ad5d 1089 i960-*-*)
0036370f 1090 noconfigdirs="$noconfigdirs gdb"
fb87ad5d 1091 ;;
d207ebef
JM		 1092 ia64*-*-elf*)
1093 # No gdb support yet.
1bcce263 1094 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
d207ebef 1095 ;;
ab50d72b 1096 ia64*-**-hpux*)
5a2931d1 1097 # No ld support yet.
a05c2c75 1098 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
ab50d72b 1099 ;;
52535a64 1100 ia64*-*-*vms*)
091fe9ca
TG		 1101 # No ld support yet.
1102 noconfigdirs="$noconfigdirs libgui itcl ld"
52535a64 1103 ;;
ef4c4300 1104 i[[3456789]]86-w64-mingw*)
ef4c4300
KT		 1105 ;;
1106 i[[3456789]]86-*-mingw*)
b91f0a41 1107 target_configdirs="$target_configdirs target-winsup"
5d571eaa 1108 ;;
d207ebef
JM		 1109 *-*-cygwin*)
1110 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1bcce263 1111 noconfigdirs="$noconfigdirs target-libgloss"
801e2270 1112 # always build newlib if winsup directory is present.
b91f0a41 1113 if test -d "$srcdir/winsup/cygwin"; then
801e2270 1114 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
c8e6cd41 1115 elif test -d "$srcdir/newlib"; then
b91f0a41 1116 echo "Warning: winsup/cygwin is missing so newlib can't be built."
801e2270 1117 fi
5d571eaa 1118 ;;
f2a0e225 1119 i[[3456789]]86-*-pe)
ebb9f8b0 1120 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1121 ;;
f2a0e225 1122 i[[3456789]]86-*-sco3.2v5*)
6599da04
JM		 1123 # The linker does not yet know about weak symbols in COFF,
1124 # and is not configured to handle mixed ELF and COFF.
0036370f 1125 noconfigdirs="$noconfigdirs ld target-libgloss"
6599da04 1126 ;;
f2a0e225 1127 i[[3456789]]86-*-sco*)
0036370f 1128 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1129 ;;
fbdd5d87 1130 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
7c01b2b5 1131 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1132 ;;
f2a0e225 1133 i[[3456789]]86-*-sysv4*)
0036370f 1134 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1135 ;;
f2a0e225 1136 i[[3456789]]86-*-beos*)
6a789d5e 1137 noconfigdirs="$noconfigdirs gdb"
3aa83176 1138 ;;
d1f8db0c 1139 i[[3456789]]86-*-rdos*)
6a789d5e 1140 noconfigdirs="$noconfigdirs gdb"
c03353e2 1141 ;;
d344dce9 1142 mmix-*-*)
2909494b 1143 noconfigdirs="$noconfigdirs gdb"
d344dce9 1144 ;;
ab34901f 1145 mt-*-*)
79dd769c
AH		 1146 noconfigdirs="$noconfigdirs sim"
1147 ;;
58b40a67
FT		 1148 nfp-*-*)
1149 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1150 noconfigdirs="$noconfigdirs $target_libraries"
1151 ;;
e6cbe965
SC		 1152 pdp11-*-*)
1153 noconfigdirs="$noconfigdirs gdb gprof"
1154 ;;
6599da04
JM		 1155 powerpc-*-aix*)
1156 # copied from rs6000-*-* entry
6a789d5e 1157 noconfigdirs="$noconfigdirs gprof"
6599da04 1158 ;;
4569f85e 1159 powerpc*-*-winnt* | powerpc*-*-pe*)
6599da04 1160 target_configdirs="$target_configdirs target-winsup"
0036370f 1161 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
6599da04
JM		 1162 # always build newlib.
1163 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1164 ;;
1165 # This is temporary until we can link against shared libraries
1166 powerpcle-*-solaris*)
0036370f 1167 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
6599da04 1168 ;;
0da3b5a7 1169 powerpc-*-beos*)
6a789d5e 1170 noconfigdirs="$noconfigdirs gdb"
d207ebef 1171 ;;
6599da04 1172 rs6000-*-lynxos*)
6a789d5e 1173 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1174 ;;
1175 rs6000-*-aix*)
6a789d5e 1176 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1177 ;;
1178 rs6000-*-*)
2909494b 1179 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1180 ;;
1181 m68k-apollo-*)
0036370f 1182 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
6599da04 1183 ;;
ca9fe997 1184 microblaze*)
2909494b 1185 noconfigdirs="$noconfigdirs gprof"
ca9fe997 1186 ;;
74ae587e 1187 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
d9dced13
RS		 1188 if test x$with_newlib = xyes; then
1189 noconfigdirs="$noconfigdirs gprof"
1190 fi
d9dced13 1191 ;;
6599da04 1192 mips*-*-irix5*)
0036370f 1193 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04
JM		 1194 ;;
1195 mips*-*-irix6*)
2909494b 1196 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1197 ;;
6599da04 1198 mips*-*-bsd*)
bc98bcc4 1199 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
6599da04 1200 ;;
9bec4bf0 1201 mips*-*-linux*)
9bec4bf0 1202 ;;
bc98bcc4
JBG		 1203 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1204 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1205 noconfigdirs="$noconfigdirs ld gas gprof"
1206 ;;
6599da04 1207 mips*-*-*)
2909494b 1208 noconfigdirs="$noconfigdirs gprof"
6599da04 1209 ;;
738f2522 1210 nvptx*-*-*)
738f2522
BS		 1211 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1212 ;;
bc6d9014 1213 sh-*-*)
ea2002ba
CB		 1214 case "${target}" in
1215 sh*-*-elf)
2909494b 1216 ;;
ea2002ba 1217 *)
2909494b 1218 noconfigdirs="$noconfigdirs target-libgloss" ;;
ea2002ba 1219 esac
6599da04
JM		 1220 ;;
1221 sparc-*-sunos4*)
6a789d5e 1222 if test x${is_cross_compiler} = xno ; then
6599da04
JM		 1223 use_gnu_ld=no
1224 fi
1225 ;;
b42f0d7e 1226 tic6x-*-*)
0d557ff8 1227 noconfigdirs="$noconfigdirs sim"
b42f0d7e 1228 ;;
6599da04 1229 v810-*-*)
0036370f 1230 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
6599da04
JM		 1231 ;;
1232 vax-*-*)
2909494b 1233 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1234 ;;
1fc1d82e
MR		 1235 wasm32-*-*)
1236 noconfigdirs="$noconfigdirs ld"
1237 ;;
c6c0594e 1238 loongarch*-*-linux*)
1239 ;;
1240 loongarch*-*-*)
1241 noconfigdirs="$noconfigdirs gprof"
1242 ;;
6599da04
JM		 1243esac
1244
6599da04
JM		 1245# If we aren't building newlib, then don't build libgloss, since libgloss
1246# depends upon some newlib header files.
1247case "${noconfigdirs}" in
1248 *target-libgloss*) ;;
1249 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
55380b08 1250esac
6599da04 1251
55380b08 1252# Work in distributions that contain no compiler tools, like Autoconf.
671aa708 1253host_makefile_frag=/dev/null
55380b08
NN		 1254if test -d ${srcdir}/config ; then
1255case "${host}" in
f2a0e225 1256 i[[3456789]]86-*-msdosdjgpp*)
55380b08
NN		 1257 host_makefile_frag="config/mh-djgpp"
1258 ;;
1259 *-cygwin*)
2a79c47f 1260 ACX_CHECK_CYGWIN_CAT_WORKS
55380b08
NN		 1261 host_makefile_frag="config/mh-cygwin"
1262 ;;
c53a18d3 1263 *-mingw*)
1f5a6b84 1264 host_makefile_frag="config/mh-mingw"
738a52d3 1265 ;;
cabb9d59 1266 alpha*-linux*)
13be44ed
UB		 1267 host_makefile_frag="config/mh-alpha-linux"
1268 ;;
111eeb6e 1269 hppa*-hp-hpux*)
00afcaa0
PB		 1270 host_makefile_frag="config/mh-pa"
1271 ;;
1272 hppa*-*)
1273 host_makefile_frag="config/mh-pa"
1274 ;;
54258e22 1275 i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*)
d8ed14ce 1276 host_makefile_frag="config/mh-darwin"
be8fff81 1277 ;;
d19bca38
PB		 1278 powerpc-*-aix*)
1279 host_makefile_frag="config/mh-ppc-aix"
1280 ;;
1281 rs6000-*-aix*)
1282 host_makefile_frag="config/mh-ppc-aix"
1283 ;;
55380b08
NN		 1284esac
1285fi
1286
e4c9c075 1287if test "${build}" != "${host}" ; then
0999159b
PB		 1288 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1289 AS_FOR_BUILD=${AS_FOR_BUILD-as}
e4c9c075 1290 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
c841dc0a 1291 CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}"
0999159b 1292 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
3b5e8ee4 1293 DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil}
0999159b 1294 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
632e2a07 1295 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
b4c522fa 1296 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
0999159b
PB		 1297 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1298 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1299 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1300 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1301 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1302 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
e4c9c075 1303else
0999159b
PB		 1304 AR_FOR_BUILD="\$(AR)"
1305 AS_FOR_BUILD="\$(AS)"
e4c9c075 1306 CC_FOR_BUILD="\$(CC)"
0999159b 1307 CXX_FOR_BUILD="\$(CXX)"
3b5e8ee4 1308 DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)"
0999159b 1309 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
632e2a07 1310 GOC_FOR_BUILD="\$(GOC)"
b4c522fa 1311 GDC_FOR_BUILD="\$(GDC)"
0999159b
PB		 1312 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1313 LD_FOR_BUILD="\$(LD)"
1314 NM_FOR_BUILD="\$(NM)"
1315 RANLIB_FOR_BUILD="\$(RANLIB)"
1316 WINDRES_FOR_BUILD="\$(WINDRES)"
1317 WINDMC_FOR_BUILD="\$(WINDMC)"
c3a86da9 1318fi
e4c9c075 1319
91743432 1320AC_PROG_CC_C99
c3a86da9
DJ		 1321AC_PROG_CXX
1322
1323# We must set the default linker to the linker used by gcc for the correct
1324# operation of libtool. If LD is not defined and we are using gcc, try to
1325# set the LD default to the ld used by gcc.
1326if test -z "$LD"; then
1327 if test "$GCC" = yes; then
1328 case $build in
1329 *-*-mingw*)
1330 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1331 *)
1332 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1333 esac
1334 case $gcc_prog_ld in
1335 # Accept absolute paths.
1336 [[\\/]* | [A-Za-z]:[\\/]*)]
1337 LD="$gcc_prog_ld" ;;
1338 esac
1339 fi
e4c9c075
PB		 1340fi
1341
0b21f5d3
EB		 1342# Check whether -static-libstdc++ -static-libgcc is supported.
1343have_static_libs=no
1344if test "$GCC" = yes; then
1345 saved_LDFLAGS="$LDFLAGS"
1346
1347 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1348 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1349 AC_LANG_PUSH(C++)
22e05272 1350 AC_LINK_IFELSE([AC_LANG_SOURCE([
0d6414b2
EB		 1351#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1352#error -static-libstdc++ not implemented
1353#endif
22e05272 1354int main() {}])],
0b21f5d3
EB		 1355 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1356 [AC_MSG_RESULT([no])])
1357 AC_LANG_POP(C++)
1358
1359 LDFLAGS="$saved_LDFLAGS"
1360fi
1361
e4c9c075 1362ACX_PROG_GNAT
5fee5ec3 1363ACX_PROG_GDC
a76494aa 1364ACX_PROG_CMP_IGNORE_INITIAL
e4c9c075 1365
ff3ac0f4
ILT		 1366AC_ARG_ENABLE([bootstrap],
1367[AS_HELP_STRING([--enable-bootstrap],
1368 [enable bootstrapping @<:@yes if native build@:>@])],,
1369enable_bootstrap=default)
1370
1371# Issue errors and warnings for invalid/strange bootstrap combinations.
bf03b9ff
ILT		 1372if test -r $srcdir/gcc/configure; then
1373 have_compiler=yes
1374else
1375 have_compiler=no
1376fi
ff3ac0f4
ILT		 1377
1378case "$have_compiler:$host:$target:$enable_bootstrap" in
1379 *:*:*:no) ;;
1380
1381 # Default behavior. Enable bootstrap if we have a compiler
1382 # and we are in a native configuration.
1383 yes:$build:$build:default)
1384 enable_bootstrap=yes ;;
1385
1386 *:*:*:default)
1387 enable_bootstrap=no ;;
1388
1389 # We have a compiler and we are in a native configuration, bootstrap is ok
1390 yes:$build:$build:yes)
1391 ;;
1392
1393 # Other configurations, but we have a compiler. Assume the user knows
1394 # what he's doing.
1395 yes:*:*:yes)
1396 AC_MSG_WARN([trying to bootstrap a cross compiler])
1397 ;;
1398
1399 # No compiler: if they passed --enable-bootstrap explicitly, fail
1400 no:*:*:yes)
1401 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1402
1403 # Fail if wrong command line
1404 *)
1405 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1406 ;;
1407esac
1408
5329b59a 1409# When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
ffac9597
JM		 1410# C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1411# require C++11 (or higher).
46070488 1412if test "$enable_bootstrap:$GXX" = "yes:yes"; then
5329b59a 1413 CXX="$CXX -std=c++11"
ffac9597
JM		 1414elif test "$have_compiler" = yes; then
1415 AX_CXX_COMPILE_STDCXX(11)
7ffcf5d6
TB		 1416
1417 if test "${build}" != "${host}"; then
1418 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1419 fi
46070488
JM		 1420fi
1421
4a5e71f2
L		 1422AC_ARG_ENABLE([pgo-build],
1423[AS_HELP_STRING([--enable-pgo-build[[=lto]]],
1424 [enable the PGO build])],
1425[enable_pgo_build=$enableval],
1426[enable_pgo_build=no])
1427
1428# Issue errors and warnings for invalid/strange PGO build combinations.
1429case "$have_compiler:$host:$target:$enable_pgo_build" in
1430 *:*:*:no) ;;
1431
1432 # Allow the PGO build only if we aren't building a compiler and
1433 # we are in a native configuration.
1434 no:$build:$build:yes | no:$build:$build:lto) ;;
1435
1436 # Disallow the PGO bootstrap if we are building a compiler.
1437 yes:*:*:yes | yes:*:*:lto)
1438 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
1439
1440 *)
1441 AC_MSG_ERROR([invalid option for --enable-pgo-build])
1442 ;;
1443esac
1444
1445if test "$enable_pgo_build" != "no"; then
1446 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
1447 old_CFLAGS="$CFLAGS"
1448 PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
1449 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
1450 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1451 [PGO_BUILD_GEN_CFLAGS=])
1452 CFLAGS="$old_CFLAGS"
1453 if test -n "$PGO_BUILD_GEN_CFLAGS"; then
1454 AC_MSG_RESULT([yes])
1455 PGO_BUILD_USE_CFLAGS="-fprofile-use"
1456 else
1457 AC_MSG_RESULT([no])
1458 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
1459 fi
1460
1461 if test "$enable_pgo_build" = "lto"; then
1462 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
1463 old_CFLAGS="$CFLAGS"
1464 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
1465 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
1466 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1467 [PGO_BUILD_LTO_CFLAGS=])
1468 CFLAGS="$old_CFLAGS"
1469 if test -n "$PGO_BUILD_LTO_CFLAGS"; then
1470 AC_MSG_RESULT([yes])
1471 else
1472 AC_MSG_RESULT([no])
1473 AC_MSG_WARN([LTO is disabled for the PGO build])
1474 fi
1475 fi
1476fi
1477AC_SUBST(PGO_BUILD_GEN_CFLAGS)
1478AC_SUBST(PGO_BUILD_USE_CFLAGS)
1479AC_SUBST(PGO_BUILD_LTO_CFLAGS)
1480
592c90ff
KG		 1481# Used for setting $lt_cv_objdir
1482_LT_CHECK_OBJDIR
1483
acd26225 1484# Check for GMP, MPFR and MPC
3a5729ea 1485gmplibs="-lmpc -lmpfr -lgmp"
6de9cd9a 1486gmpinc=
e69bf64b 1487have_gmp=no
acd26225
KG		 1488
1489# Specify a location for mpc
1490# check for this first so it ends up on the link line before mpfr.
33e39b66
AS		 1491AC_ARG_WITH(mpc,
1492[AS_HELP_STRING([--with-mpc=PATH],
1493 [specify prefix directory for installed MPC package.
1494 Equivalent to --with-mpc-include=PATH/include
1495 plus --with-mpc-lib=PATH/lib])])
1496AC_ARG_WITH(mpc-include,
1497[AS_HELP_STRING([--with-mpc-include=PATH],
1498 [specify directory for installed MPC include files])])
1499AC_ARG_WITH(mpc-lib,
1500[AS_HELP_STRING([--with-mpc-lib=PATH],
1501 [specify directory for the installed MPC library])])
acd26225
KG		 1502
1503if test "x$with_mpc" != x; then
3a5729ea
KG		 1504 gmplibs="-L$with_mpc/lib $gmplibs"
1505 gmpinc="-I$with_mpc/include $gmpinc"
acd26225
KG		 1506fi
1507if test "x$with_mpc_include" != x; then
3a5729ea 1508 gmpinc="-I$with_mpc_include $gmpinc"
acd26225
KG		 1509fi
1510if test "x$with_mpc_lib" != x; then
3a5729ea 1511 gmplibs="-L$with_mpc_lib $gmplibs"
acd26225
KG		 1512fi
1513if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
592c90ff 1514 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
3a5729ea 1515 gmpinc='-I$$s/mpc/src '"$gmpinc"
acd26225
KG		 1516 # Do not test the mpc version. Assume that it is sufficient, since
1517 # it is in the source tree, and the library has not been built yet
1518 # but it would be included on the link line in the version check below
1519 # hence making the test fail.
3a5729ea 1520 have_gmp=yes
acd26225 1521fi
e69bf64b 1522
bebf829d
PB		 1523# Specify a location for mpfr
1524# check for this first so it ends up on the link line before gmp.
33e39b66
AS		 1525AC_ARG_WITH(mpfr,
1526[AS_HELP_STRING([--with-mpfr=PATH],
1527 [specify prefix directory for installed MPFR package.
1528 Equivalent to --with-mpfr-include=PATH/include
1529 plus --with-mpfr-lib=PATH/lib])])
1530AC_ARG_WITH(mpfr-include,
1531[AS_HELP_STRING([--with-mpfr-include=PATH],
1532 [specify directory for installed MPFR include files])])
1533AC_ARG_WITH(mpfr-lib,
1534[AS_HELP_STRING([--with-mpfr-lib=PATH],
1535 [specify directory for the installed MPFR library])])
bebf829d
PB		 1536
1537if test "x$with_mpfr" != x; then
1538 gmplibs="-L$with_mpfr/lib $gmplibs"
3a5729ea 1539 gmpinc="-I$with_mpfr/include $gmpinc"
bebf829d 1540fi
8a877c9c 1541if test "x$with_mpfr_include" != x; then
3a5729ea 1542 gmpinc="-I$with_mpfr_include $gmpinc"
8a877c9c
KG		 1543fi
1544if test "x$with_mpfr_lib" != x; then
1545 gmplibs="-L$with_mpfr_lib $gmplibs"
1546fi
e69bf64b 1547if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
8f3675f8
MR		 1548 # MPFR v3.1.0 moved the sources into a src sub-directory.
1549 if ! test -d ${srcdir}/mpfr/src; then
1550 AC_MSG_ERROR([dnl
1551Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1552 fi
00f35794
BE		 1553 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1554 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1555 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
e69bf64b
PB		 1556 # Do not test the mpfr version. Assume that it is sufficient, since
1557 # it is in the source tree, and the library has not been built yet
1558 # but it would be included on the link line in the version check below
1559 # hence making the test fail.
1560 have_gmp=yes
1561fi
bebf829d 1562
6de9cd9a 1563# Specify a location for gmp
33e39b66
AS		 1564AC_ARG_WITH(gmp,
1565[AS_HELP_STRING([--with-gmp=PATH],
1566 [specify prefix directory for the installed GMP package.
1567 Equivalent to --with-gmp-include=PATH/include
1568 plus --with-gmp-lib=PATH/lib])])
1569AC_ARG_WITH(gmp-include,
1570[AS_HELP_STRING([--with-gmp-include=PATH],
1571 [specify directory for installed GMP include files])])
1572AC_ARG_WITH(gmp-lib,
1573[AS_HELP_STRING([--with-gmp-lib=PATH],
1574 [specify directory for the installed GMP library])])
6de9cd9a 1575
6de9cd9a 1576
bebf829d
PB		 1577if test "x$with_gmp" != x; then
1578 gmplibs="-L$with_gmp/lib $gmplibs"
1579 gmpinc="-I$with_gmp/include $gmpinc"
6de9cd9a 1580fi
8a877c9c
KG		 1581if test "x$with_gmp_include" != x; then
1582 gmpinc="-I$with_gmp_include $gmpinc"
1583fi
1584if test "x$with_gmp_lib" != x; then
1585 gmplibs="-L$with_gmp_lib $gmplibs"
1586fi
e69bf64b 1587if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
592c90ff 1588 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
e69bf64b 1589 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
9183bdcf 1590 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
592c90ff 1591 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
0ff2d841 1592 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
e69bf64b
PB		 1593 # Do not test the gmp version. Assume that it is sufficient, since
1594 # it is in the source tree, and the library has not been built yet
1595 # but it would be included on the link line in the version check below
1596 # hence making the test fail.
1597 have_gmp=yes
1598fi
6de9cd9a 1599
d943d7c4 1600if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
e69bf64b
PB		 1601 have_gmp=yes
1602 saved_CFLAGS="$CFLAGS"
1603 CFLAGS="$CFLAGS $gmpinc"
362c6d2f
KG		 1604 # Check for the recommended and required versions of GMP.
1605 AC_MSG_CHECKING([for the correct version of gmp.h])
e69bf64b 1606 AC_TRY_COMPILE([#include "gmp.h"],[
362c6d2f
KG		 1607 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1608 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
385c0681 1609 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
e48d66a9 1610 choke me
e69bf64b 1611 #endif
e8fd69bb 1612 ], [AC_TRY_COMPILE([#include <gmp.h>],[
362c6d2f
KG		 1613 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1614 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1615 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1616 choke me
1617 #endif
e8fd69bb 1618 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1619 [AC_MSG_RESULT([no]); have_gmp=no])
e69bf64b 1620
acd26225 1621 # If we have GMP, check the MPFR version.
e69bf64b 1622 if test x"$have_gmp" = xyes; then
362c6d2f
KG		 1623 # Check for the recommended and required versions of MPFR.
1624 AC_MSG_CHECKING([for the correct version of mpfr.h])
acd26225 1625 AC_TRY_COMPILE([#include <gmp.h>
e69bf64b 1626 #include <mpfr.h>],[
8be34204 1627 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
e69bf64b
PB		 1628 choke me
1629 #endif
e8fd69bb 1630 ], [AC_TRY_COMPILE([#include <gmp.h>
acd26225 1631 #include <mpfr.h>],[
8be34204 1632 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
acd26225
KG		 1633 choke me
1634 #endif
e8fd69bb 1635 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
acd26225
KG		 1636 [AC_MSG_RESULT([no]); have_gmp=no])
1637 fi
1638
1639 # Check for the MPC header version.
3a5729ea 1640 if test x"$have_gmp" = xyes ; then
362c6d2f 1641 # Check for the recommended and required versions of MPC.
acd26225
KG		 1642 AC_MSG_CHECKING([for the correct version of mpc.h])
1643 AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f 1644 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
acd26225
KG		 1645 choke me
1646 #endif
e8fd69bb 1647 ], [AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f
KG		 1648 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1649 choke me
1650 #endif
e8fd69bb 1651 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1652 [AC_MSG_RESULT([no]); have_gmp=no])
acd26225
KG		 1653 fi
1654
1655 # Now check the MPFR library.
1656 if test x"$have_gmp" = xyes; then
1657 saved_LIBS="$LIBS"
1658 LIBS="$LIBS $gmplibs"
3a5729ea
KG		 1659 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1660 AC_TRY_LINK([#include <mpc.h>],[
54e433bc
MK		 1661 mpfr_t n;
1662 mpfr_t x;
3a5729ea 1663 mpc_t c;
e69bf64b 1664 int t;
54e433bc
MK		 1665 mpfr_init (n);
1666 mpfr_init (x);
90ca6847
TB		 1667 mpfr_atan2 (n, n, x, MPFR_RNDN);
1668 mpfr_erfc (n, x, MPFR_RNDN);
1669 mpfr_subnormalize (x, t, MPFR_RNDN);
3a5729ea
KG		 1670 mpfr_clear(n);
1671 mpfr_clear(x);
1672 mpc_init2 (c, 53);
1673 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1674 mpc_cosh (c, c, MPC_RNDNN);
1675 mpc_pow (c, c, c, MPC_RNDNN);
1676 mpc_acosh (c, c, MPC_RNDNN);
1677 mpc_clear (c);
acd26225
KG		 1678 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1679 LIBS="$saved_LIBS"
e69bf64b 1680 fi
acd26225 1681
e69bf64b 1682 CFLAGS="$saved_CFLAGS"
6de9cd9a 1683
362c6d2f
KG		 1684# The library versions listed in the error message below should match
1685# the HARD-minimums enforced above.
e69bf64b 1686 if test x$have_gmp != xyes; then
8be34204 1687 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
3a5729ea
KG		 1688Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1689their locations. Source code for these libraries can be found at
1690their respective hosting sites as well as at
aeebd94c 1691https://gcc.gnu.org/pub/gcc/infrastructure/. See also
45ab87d4 1692http://gcc.gnu.org/install/prerequisites.html for additional info. If
3a5729ea
KG		 1693you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1694make sure that you have installed both the libraries and the header
1695files. They may be located in separate packages.])
e69bf64b 1696 fi
70ec446f
KG		 1697fi
1698
acd26225 1699# Flags needed for both GMP, MPFR and/or MPC.
6de9cd9a
DN		 1700AC_SUBST(gmplibs)
1701AC_SUBST(gmpinc)
9e3eba15 1702AC_SUBST(extra_mpfr_configure_flags)
acd26225
KG		 1703AC_SUBST(extra_mpc_gmp_configure_flags)
1704AC_SUBST(extra_mpc_mpfr_configure_flags)
0ff2d841 1705AC_SUBST(extra_isl_gmp_configure_flags)
6de9cd9a 1706
00020c16
ILT		 1707# Libraries to use for stage1 or when not bootstrapping.
1708AC_ARG_WITH(stage1-libs,
33e39b66 1709[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
00020c16
ILT		 1710[if test "$withval" = "no" -o "$withval" = "yes"; then
1711 stage1_libs=
1712 else
1713 stage1_libs=$withval
1714 fi],
5dc85f7e 1715[stage1_libs=])
00020c16
ILT		 1716AC_SUBST(stage1_libs)
1717
aac9103b
TT		 1718# Whether or not to use -static-libstdc++ and -static-libgcc. The
1719# default is yes if gcc is being built; no otherwise. The reason for
1720# this default is that gdb is sometimes linked against GNU Source
1721# Highlight, which is a shared library that uses C++ exceptions. In
1722# this case, -static-libstdc++ will cause crashes.
1723AC_ARG_WITH(static-standard-libraries,
1724[AS_HELP_STRING([--with-static-standard-libraries],
1725 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1726[], [with_static_standard_libraries=auto])
1727if test "$with_static_standard_libraries" = auto; then
1728 with_static_standard_libraries=$have_compiler
1729fi
1730
0b21f5d3
EB		 1731# Linker flags to use for stage1 or when not bootstrapping.
1732AC_ARG_WITH(stage1-ldflags,
1733[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1734[if test "$withval" = "no" -o "$withval" = "yes"; then
1735 stage1_ldflags=
1736 else
1737 stage1_ldflags=$withval
1738 fi],
1739[stage1_ldflags=
1740 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1741 # if supported. But if the user explicitly specified the libraries to use,
1742 # trust that they are doing what they want.
aac9103b
TT		 1743 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1744 -a "$have_static_libs" = yes; then
0b21f5d3
EB		 1745 stage1_ldflags="-static-libstdc++ -static-libgcc"
1746 fi])
1747AC_SUBST(stage1_ldflags)
1748
5dc85f7e 1749# Libraries to use for stage2 and later builds.
00020c16 1750AC_ARG_WITH(boot-libs,
33e39b66 1751[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
00020c16
ILT		 1752[if test "$withval" = "no" -o "$withval" = "yes"; then
1753 poststage1_libs=
1754 else
e90e6bd7 1755 poststage1_libs=$withval
00020c16 1756 fi],
5dc85f7e 1757[poststage1_libs=])
00020c16
ILT		 1758AC_SUBST(poststage1_libs)
1759
ed2eaa9f
ILT		 1760# Linker flags to use for stage2 and later builds.
1761AC_ARG_WITH(boot-ldflags,
33e39b66
AS		 1762[AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1763 [linker flags for stage2 and later])],
ed2eaa9f
ILT		 1764[if test "$withval" = "no" -o "$withval" = "yes"; then
1765 poststage1_ldflags=
1766 else
1767 poststage1_ldflags=$withval
1768 fi],
1769[poststage1_ldflags=
bec93d73
ILT		 1770 # In stages 2 and 3, default to linking libstdc++ and libgcc
1771 # statically. But if the user explicitly specified the libraries to
1772 # use, trust that they are doing what they want.
1773 if test "$poststage1_libs" = ""; then
ed2eaa9f
ILT		 1774 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1775 fi])
1776AC_SUBST(poststage1_ldflags)
1777
e357a5e0 1778# GCC GRAPHITE dependency isl.
4a9bb2aa 1779# Basic setup is inlined here, actual checks are in config/isl.m4
625afa23 1780
625afa23
RG		 1781AC_ARG_WITH(isl,
1782 [AS_HELP_STRING(
1783 [--with-isl=PATH],
e357a5e0 1784 [Specify prefix directory for the installed isl package.
625afa23
RG		 1785 Equivalent to --with-isl-include=PATH/include
1786 plus --with-isl-lib=PATH/lib])])
1787
eae1a5d4 1788# Treat --without-isl as a request to disable
625afa23 1789# GRAPHITE support and skip all following checks.
eae1a5d4 1790if test "x$with_isl" != "xno"; then
e357a5e0 1791 # Check for isl
625afa23
RG		 1792 dnl Provide configure switches and initialize islinc & isllibs
1793 dnl with user input.
1794 ISL_INIT_FLAGS
e357a5e0 1795 dnl The versions of isl that work for Graphite
e0c0c325 1796 ISL_CHECK_VERSION()
e357a5e0 1797 dnl Only execute fail-action, if isl has been requested.
33ad93b9 1798 ISL_IF_FAILED([
e357a5e0 1799 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
f8bf9252 1800fi
f8bf9252 1801
e357a5e0 1802# If the isl check failed, disable builds of in-tree variant of isl
625afa23 1803if test "x$with_isl" = xno ||
625afa23 1804 test "x$gcc_cv_isl" = xno; then
4a9bb2aa 1805 noconfigdirs="$noconfigdirs isl"
625afa23 1806 islinc=
eae1a5d4
RG		 1807fi
1808
1809AC_SUBST(isllibs)
625afa23 1810AC_SUBST(islinc)
625afa23 1811
d7f09764
DN		 1812# Check for LTO support.
1813AC_ARG_ENABLE(lto,
33e39b66 1814[AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
d7f09764
DN		 1815enable_lto=$enableval,
1816enable_lto=yes; default_enable_lto=yes)
1817
48215350
DK		 1818ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1819 build_lto_plugin=yes
1820],[if test x"$default_enable_lto" = x"yes" ; then
bb79486c 1821 case $target in
deeba76a 1822 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
48215350 1823 # On other non-ELF platforms, LTO has yet to be validated.
bb79486c
JH		 1824 *) enable_lto=no ;;
1825 esac
3bec79c5 1826 else
db50fe7d
IS		 1827 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1828 # It would also be nice to check the binutils support, but we don't
3bec79c5
DK		 1829 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1830 # warn during gcc/ subconfigure; unless you're bootstrapping with
1831 # -flto it won't be needed until after installation anyway.
1832 case $target in
9e530bcd 1833 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
3bec79c5
DK		 1834 *) if test x"$enable_lto" = x"yes"; then
1835 AC_MSG_ERROR([LTO support is not enabled for this target.])
1836 fi
1837 ;;
1838 esac
1839 fi
1cd0b716 1840 # Among non-ELF, only Windows platforms support the lto-plugin so far.
48215350 1841 # Build it unless LTO was explicitly disabled.
1cd0b716 1842 case $target in
48215350 1843 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1cd0b716
DK		 1844 *) ;;
1845 esac
48215350 1846])
d7f09764 1847
45b3824d
TS		 1848AC_ARG_ENABLE(linker-plugin-configure-flags,
1849 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1850 [additional flags for configuring linker plugins @<:@none@:>@])],
1851 extra_linker_plugin_configure_flags=$enableval,
1852 extra_linker_plugin_configure_flags=)
1853AC_SUBST(extra_linker_plugin_configure_flags)
1854AC_ARG_ENABLE(linker-plugin-flags,
1855 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1856 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1857 extra_linker_plugin_flags=$enableval,
1858 extra_linker_plugin_flags=)
1859AC_SUBST(extra_linker_plugin_flags)
1860
cdfee50a
NS		 1861# Enable --enable-host-shared.
1862# Checked early to determine whether jit is an 'all' language
1863AC_ARG_ENABLE(host-shared,
1864[AS_HELP_STRING([--enable-host-shared],
1865 [build host code as shared libraries])],
a1d2b162 1866[host_shared=$enableval
1edfc8f2 1867 case $host in
a1d2b162
IS		 1868 x86_64-*-darwin* | aarch64-*-darwin*)
1869 if test x$host_shared != xyes ; then
1870 # PIC is the default, and actually cannot be switched off.
1871 echo configure.ac: warning: PIC code is required for the configured target, host-shared setting ignored. 1>&2
1872 host_shared=yes
1873 fi ;;
1874 *) ;;
1875 esac],
1edfc8f2 1876[case $host in
a1d2b162
IS		 1877 x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
1878 *) host_shared=no ;;
1879 esac])
05048fc2 1880
cdfee50a 1881AC_SUBST(host_shared)
f8bf9252 1882
05048fc2
IS		 1883# If we are building PIC/PIE host executables, and we are building dependent
1884# libs (e.g. GMP) in-tree those libs need to be configured to generate PIC
1885# code.
1886host_libs_picflag=
1887if test "$host_shared" = "yes";then
1888host_libs_picflag='--with-pic'
1889fi
1890AC_SUBST(host_libs_picflag)
1891
0823efed 1892# By default, C and C++ are the only stage 1 languages.
e1888513 1893stage1_languages=,c,
2805b53a 1894
00020c16 1895# Target libraries that we bootstrap.
ad1e5170 1896bootstrap_target_libs=,target-libgcc,
00020c16 1897
e4c9c075
PB		 1898# Figure out what language subdirectories are present.
1899# Look if the user specified --enable-languages="..."; if not, use
1900# the environment variable $LANGUAGES if defined. $LANGUAGES might
1901# go away some day.
1902# NB: embedded tabs in this IF block -- do not untabify
1903if test -d ${srcdir}/gcc; then
1904 if test x"${enable_languages+set}" != xset; then
1905 if test x"${LANGUAGES+set}" = xset; then
1906 enable_languages="${LANGUAGES}"
6b1786aa 1907 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
e4c9c075 1908 else
cdfee50a 1909 enable_languages=default
e4c9c075
PB		 1910 fi
1911 else
1912 if test x"${enable_languages}" = x ||
1913 test x"${enable_languages}" = xyes;
1914 then
6b1786aa 1915 echo configure.ac: --enable-languages needs at least one language argument 1>&2
e4c9c075
PB		 1916 exit 1
1917 fi
1918 fi
1919 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1920
7f26dfa3
FXC		 1921 # 'f95' is the old name for the 'fortran' language. We issue a warning
1922 # and make the substitution.
1923 case ,${enable_languages}, in
1924 *,f95,*)
6b1786aa 1925 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
7f26dfa3
FXC		 1926 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1927 ;;
1928 esac
1929
0823efed
DN		 1930 # If bootstrapping, C++ must be enabled.
1931 case ",$enable_languages,:$enable_bootstrap" in
1932 *,c++,*:*) ;;
1933 *:yes)
ff3ac0f4
ILT		 1934 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1935 enable_languages="${enable_languages},c++"
1936 else
0823efed 1937 AC_MSG_ERROR([bootstrapping requires c++ sources])
ff3ac0f4
ILT		 1938 fi
1939 ;;
1940 esac
1941
e4c9c075
PB		 1942 # First scan to see if an enabled language requires some other language.
1943 # We assume that a given config-lang.in will list all the language
1944 # front ends it requires, even if some are required indirectly.
1945 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1946 case ${lang_frag} in
1947 ..) ;;
1948 # The odd quoting in the next line works around
1949 # an apparent bug in bash 1.12 on linux.
1950 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1951 *)
69ecd18f
ILT		 1952 # From the config-lang.in, get $language, $lang_requires, and
1953 # $lang_requires_boot_languages.
e4c9c075
PB		 1954 language=
1955 lang_requires=
69ecd18f 1956 lang_requires_boot_languages=
d4360477
NS		 1957 # set srcdir during sourcing lang_frag to the gcc dir.
1958 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1959 # polutes this shell
1960 saved_srcdir=${srcdir}
1961 srcdir=${srcdir}/gcc . ${lang_frag}
1962 srcdir=${saved_srcdir}
69ecd18f 1963 for other in ${lang_requires} ${lang_requires_boot_languages}; do
e4c9c075
PB		 1964 case ,${enable_languages}, in
1965 *,$other,*) ;;
cdfee50a 1966 *,default,*) ;;
e4c9c075
PB		 1967 *,all,*) ;;
1968 *,$language,*)
1969 echo " \`$other' language required by \`$language'; enabling" 1>&2
1970 enable_languages="${enable_languages},${other}"
1971 ;;
1972 esac
1973 done
69ecd18f
ILT		 1974 for other in ${lang_requires_boot_languages} ; do
1975 if test "$other" != "c"; then
1976 case ,${enable_stage1_languages}, in
1977 *,$other,*) ;;
cdfee50a 1978 *,default,*) ;;
69ecd18f
ILT		 1979 *,all,*) ;;
1980 *)
1981 case ,${enable_languages}, in
1982 *,$language,*)
1983 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1984 enable_stage1_languages="$enable_stage1_languages,${other}"
1985 ;;
1986 esac
1987 ;;
1988 esac
1989 fi
1990 done
e4c9c075
PB		 1991 ;;
1992 esac
1993 done
1994
e1888513 1995 new_enable_languages=,c,
d7f09764
DN		 1996
1997 # If LTO is enabled, add the LTO front end.
d7f09764 1998 if test "$enable_lto" = "yes" ; then
e4c5bd48
RW		 1999 case ,${enable_languages}, in
2000 *,lto,*) ;;
2001 *) enable_languages="${enable_languages},lto" ;;
2002 esac
1cd0b716 2003 if test "${build_lto_plugin}" = "yes" ; then
d7f09764 2004 configdirs="$configdirs lto-plugin"
d7f09764
DN		 2005 fi
2006 fi
d7f09764 2007
426c1eb0
TS		 2008 # If we're building an offloading compiler, add the LTO front end.
2009 if test x"$enable_as_accelerator_for" != x ; then
2010 case ,${enable_languages}, in
2011 *,lto,*) ;;
2012 *) enable_languages="${enable_languages},lto" ;;
2013 esac
2014 fi
2015
cdfee50a 2016 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
e1888513 2017 potential_languages=,c,
e4c9c075 2018
4da3b0f8
ILT		 2019 enabled_target_libs=
2020 disabled_target_libs=
2021
e4c9c075
PB		 2022 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2023 case ${lang_frag} in
2024 ..) ;;
2025 # The odd quoting in the next line works around
2026 # an apparent bug in bash 1.12 on linux.
2027 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2028 *)
2029 # From the config-lang.in, get $language, $target_libs,
2805b53a 2030 # $lang_dirs, $boot_language, and $build_by_default
e4c9c075
PB		 2031 language=
2032 target_libs=
2033 lang_dirs=
1546bb64 2034 subdir_requires=
e1888513
PB		 2035 boot_language=no
2036 build_by_default=yes
d4360477
NS		 2037 # set srcdir during sourcing. See above about save & restore
2038 saved_srcdir=${srcdir}
2039 srcdir=${srcdir}/gcc . ${lang_frag}
2040 srcdir=${saved_srcdir}
e1888513
PB		 2041 if test x${language} = x; then
2042 echo "${lang_frag} doesn't set \$language." 1>&2
2043 exit 1
2044 fi
2045
78767fd9 2046 if test "$language" = "c++"; then
0823efed 2047 boot_language=yes
00020c16
ILT		 2048 fi
2049
178f875a 2050 add_this_lang=no
cdfee50a
NS		 2051 # C is always enabled, so no need to add it again
2052 if test "$language" != "c"; then
2053 case ,${enable_languages}, in
2054 *,${language},*)
2055 # Language was explicitly selected; include it
d4a10d0a 2056 add_this_lang=yes
cdfee50a
NS		 2057 ;;
2058 *,all,*)
2059 # All languages are enabled
2060 add_this_lang=all
2061 ;;
2062 *,default,*)
2063 # 'default' was selected, select it if it is a default language
178f875a 2064 add_this_lang=${build_by_default}
cdfee50a
NS		 2065 ;;
2066 esac
2067 fi
6de9cd9a 2068
1546bb64 2069 # Disable languages that need other directories if these aren't available.
95695ad3 2070 for i in $subdir_requires; do
b6348cb3 2071 test -f "$srcdir/gcc/$i/config-lang.in" && continue
cdfee50a
NS		 2072 case ${add_this_lang} in
2073 yes)
1546bb64
PB		 2074 # Specifically requested language; tell them.
2075 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2076 ;;
cdfee50a
NS		 2077 all)
2078 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2079 add_this_lang=unsupported
2080 ;;
1546bb64
PB		 2081 *)
2082 # Silently disable.
e1888513 2083 add_this_lang=unsupported
1546bb64
PB		 2084 ;;
2085 esac
2086 done
2087
e1888513 2088 # Disable Ada if no preexisting GNAT is available.
cdfee50a
NS		 2089 case ${add_this_lang}:${language}:${have_gnat} in
2090 yes:ada:no)
e1888513
PB		 2091 # Specifically requested language; tell them.
2092 AC_MSG_ERROR([GNAT is required to build $language])
2093 ;;
cdfee50a
NS		 2094 all:ada:no)
2095 AC_MSG_WARN([GNAT is required to build $language])
2096 add_this_lang=unsupported
2097 ;;
e1888513
PB		 2098 *:ada:no)
2099 # Silently disable.
2100 add_this_lang=unsupported
2101 ;;
2102 esac
2103
5fee5ec3
IB		 2104 # Disable D if no preexisting GDC is available.
2105 case ${add_this_lang}:${language}:${have_gdc} in
2106 yes:d:no)
2107 # Specifically requested language; tell them.
2108 AC_MSG_ERROR([GDC is required to build $language])
2109 ;;
2110 all:d:no)
2111 AC_MSG_WARN([GDC is required to build $language])
2112 add_this_lang=unsupported
2113 ;;
2114 *:d:no)
2115 # Silently disable.
2116 add_this_lang=unsupported
2117 ;;
2118 esac
2119
cdfee50a 2120 # Disable jit if -enable-host-shared not specified
c83027f3
NB		 2121 # but not if building for Mingw. All code in Windows
2122 # is position independent code (PIC).
2123 case $target in
2124 *mingw*) ;;
2125 *)
2126 case ${add_this_lang}:${language}:${host_shared} in
2127 yes:jit:no)
2128 # PR jit/64780: explicitly specify --enable-host-shared
cdfee50a
NS		 2129 AC_MSG_ERROR([
2130Enabling language "jit" requires --enable-host-shared.
2131
2132--enable-host-shared typically slows the rest of the compiler down by
2133a few %, so you must explicitly enable it.
2134
2135If you want to build both the jit and the regular compiler, it is often
2136best to do this via two separate configure/builds, in separate
2137directories, to avoid imposing the performance cost of
2138--enable-host-shared on the regular compiler.])
c83027f3
NB		 2139 ;;
2140 all:jit:no)
2141 AC_MSG_WARN([--enable-host-shared required to build $language])
2142 add_this_lang=unsupported
2143 ;;
2144 *:jit:no)
2145 # Silently disable.
2146 add_this_lang=unsupported
2147 ;;
2148 esac
2149 ;;
2150 esac
cdfee50a
NS		 2151
2152 # Disable a language that is unsupported by the target.
2153 case "${add_this_lang}: $unsupported_languages " in
2154 no:*) ;;
2155 unsupported:*) ;;
2156 *:*" $language "*)
2157 AC_MSG_WARN([${language} not supported for this target])
e1888513 2158 add_this_lang=unsupported
4fab7234
HPN		 2159 ;;
2160 esac
2161
6de9cd9a 2162 case $add_this_lang in
e1888513 2163 unsupported)
e4c9c075 2164 # Remove language-dependent dirs.
4da3b0f8
ILT		 2165 disabled_target_libs="$disabled_target_libs $target_libs"
2166 noconfigdirs="$noconfigdirs $lang_dirs"
2805b53a 2167 ;;
e1888513
PB		 2168 no)
2169 # Remove language-dependent dirs; still show language as supported.
4da3b0f8
ILT		 2170 disabled_target_libs="$disabled_target_libs $target_libs"
2171 noconfigdirs="$noconfigdirs $lang_dirs"
e1888513
PB		 2172 potential_languages="${potential_languages}${language},"
2173 ;;
cdfee50a 2174 all|yes)
e1888513
PB		 2175 new_enable_languages="${new_enable_languages}${language},"
2176 potential_languages="${potential_languages}${language},"
2805b53a 2177 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
4da3b0f8 2178 enabled_target_libs="$enabled_target_libs $target_libs"
ab9dcd0c
RW		 2179 case "${boot_language}:,$enable_stage1_languages," in
2180 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
340de83f 2181 # Add to (comma-separated) list of stage 1 languages.
ab9dcd0c
RW		 2182 case ",$stage1_languages," in
2183 *,$language,* | ,yes, | ,all,) ;;
2184 *) stage1_languages="${stage1_languages}${language}," ;;
2185 esac
00020c16 2186 # We need to bootstrap any supporting libraries.
5fee5ec3 2187 bootstrap_target_libs=`echo "${bootstrap_target_libs}${target_libs}," | sed "s/ /,/g"`
2805b53a
NN		 2188 ;;
2189 esac
2190 ;;
e4c9c075
PB		 2191 esac
2192 ;;
2193 esac
2194 done
2195
4da3b0f8
ILT		 2196 # Add target libraries which are only needed for disabled languages
2197 # to noconfigdirs.
2198 if test -n "$disabled_target_libs"; then
2199 for dir in $disabled_target_libs; do
2200 case " $enabled_target_libs " in
2201 *" ${dir} "*) ;;
2202 *) noconfigdirs="$noconfigdirs $dir" ;;
2203 esac
2204 done
2205 fi
2206
e1888513 2207 AC_ARG_ENABLE(stage1-languages,
33e39b66
AS		 2208 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2209 [choose additional languages to build during
2210 stage1. Mostly useful for compiler development])],
e1888513
PB		 2211 [case ,${enable_stage1_languages}, in
2212 ,no,|,,)
2213 # Set it to something that will have no effect in the loop below
2214 enable_stage1_languages=c ;;
2215 ,yes,)
2216 enable_stage1_languages=`echo $new_enable_languages | \
2217 sed -e "s/^,//" -e "s/,$//" ` ;;
2218 *,all,*)
2219 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2220 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2221 esac
2222
2223 # Add "good" languages from enable_stage1_languages to stage1_languages,
2224 # while "bad" languages go in missing_languages. Leave no duplicates.
2225 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2226 case $potential_languages in
2227 *,$i,*)
2228 case $stage1_languages in
2229 *,$i,*) ;;
2230 *) stage1_languages="$stage1_languages$i," ;;
2231 esac ;;
2232 *)
2233 case $missing_languages in
2234 *,$i,*) ;;
2235 *) missing_languages="$missing_languages$i," ;;
2236 esac ;;
2237 esac
2238 done])
2239
2240 # Remove leading/trailing commas that were added for simplicity
2241 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
79b4b7d2 2242 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
e1888513
PB		 2243 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2244 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2245
e4c9c075
PB		 2246 if test "x$missing_languages" != x; then
2247 AC_MSG_ERROR([
0cf085e4 2248The following requested languages could not be built: ${missing_languages}
e1888513 2249Supported languages are: ${potential_languages}])
e4c9c075 2250 fi
e4c9c075
PB		 2251 if test "x$new_enable_languages" != "x$enable_languages"; then
2252 echo The following languages will be built: ${new_enable_languages}
e1888513 2253 enable_languages="$new_enable_languages"
e4c9c075 2254 fi
e1888513
PB		 2255
2256 AC_SUBST(stage1_languages)
b2eaac4a 2257 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
e4c9c075
PB		 2258fi
2259
27079765
AH		 2260# Handle --disable-<component> generically.
2261for dir in $configdirs $build_configdirs $target_configdirs ; do
2262 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
ac9e6043
RW		 2263 varname=`echo $dirname | sed -e s/+/_/g`
2264 if eval test x\${enable_${varname}} "=" xno ; then
27079765
AH		 2265 noconfigdirs="$noconfigdirs $dir"
2266 fi
2267done
2268
43c40f3e
RO		 2269# Check for Boehm's garbage collector
2270AC_ARG_ENABLE(objc-gc,
2271[AS_HELP_STRING([--enable-objc-gc],
2272 [enable use of Boehm's garbage collector with the
114bf3f1
MK		 2273 GNU Objective-C runtime])])
2274AC_ARG_WITH([target-bdw-gc],
2275[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2276 [specify prefix directory for installed bdw-gc package.
2277 Equivalent to --with-target-bdw-gc-include=PATH/include
2278 plus --with-target-bdw-gc-lib=PATH/lib])])
2279AC_ARG_WITH([target-bdw-gc-include],
2280[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2281 [specify directories for installed bdw-gc include files])])
2282AC_ARG_WITH([target-bdw-gc-lib],
2283[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2284 [specify directories for installed bdw-gc library])])
2285
2286case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2287 AC_MSG_CHECKING([for bdw garbage collector])
2288 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
825fba52
MK		 2289 dnl no bdw-gw options, assume default locations
2290 AC_MSG_RESULT([using bdw-gc in default locations])
114bf3f1
MK		 2291 else
2292 dnl bdw-gw options, first error checking, complete checking in libobjc
2293 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2294 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2295 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2296 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2297 else
2298 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2299 fi
2300 fi
43c40f3e
RO		 2301esac
2302
e4cba494 2303# Disable libitm, libsanitizer, libvtv if we're not building C++
99776ebd 2304case ,${enable_languages}, in
1007a55c 2305 *,c++,*)
5e9d6aa4 2306 # Disable libitm, libsanitizer if we're not building libstdc++
1007a55c
JW		 2307 case "${noconfigdirs}" in
2308 *target-libstdc++-v3*)
5e9d6aa4 2309 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
1007a55c
JW		 2310 ;;
2311 *) ;;
2312 esac
2313 ;;
99776ebd 2314 *)
e4cba494 2315 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer target-libvtv"
99776ebd
RH		 2316 ;;
2317esac
7cd0cf9c 2318
dc614a83
AB		 2319# If gcc/ is not in the source tree then we'll not be building a
2320# target compiler, assume in that case we don't want to build any
2321# target libraries or tools.
2322#
2323# This was added primarily for the benefit for binutils-gdb who reuse
2324# this configure script, but don't always have target tools available.
2325if test ! -d ${srcdir}/gcc; then
2326 skipdirs="${skipdirs} ${target_configdirs}"
2327fi
2328
9d069a4f
PB		 2329# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2330# $build_configdirs and $target_configdirs.
e4c9c075
PB		 2331# If we have the source for $noconfigdirs entries, add them to $notsupp.
2332
2333notsupp=""
2334for dir in . $skipdirs $noconfigdirs ; do
9d069a4f 2335 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
e4c9c075
PB		 2336 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2337 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2338 if test -r $srcdir/$dirname/configure ; then
2339 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2340 true
2341 else
2342 notsupp="$notsupp $dir"
2343 fi
2344 fi
2345 fi
9d069a4f
PB		 2346 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2347 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2348 if test -r $srcdir/$dirname/configure ; then
2349 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2350 true
2351 else
2352 notsupp="$notsupp $dir"
2353 fi
2354 fi
2355 fi
e4c9c075
PB		 2356 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2357 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2358 if test -r $srcdir/$dirname/configure ; then
2359 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2360 true
2361 else
2362 notsupp="$notsupp $dir"
2363 fi
2364 fi
2365 fi
2366done
2367
e4c9c075
PB		 2368# Quietly strip out all directories which aren't configurable in this tree.
2369# This relies on all configurable subdirectories being autoconfiscated, which
2370# is now the case.
23f6b2f9
PB		 2371build_configdirs_all="$build_configdirs"
2372build_configdirs=
2373for i in ${build_configdirs_all} ; do
2374 j=`echo $i | sed -e s/build-//g`
2375 if test -f ${srcdir}/$j/configure ; then
2376 build_configdirs="${build_configdirs} $i"
2377 fi
2378done
2379
e4c9c075
PB		 2380configdirs_all="$configdirs"
2381configdirs=
2382for i in ${configdirs_all} ; do
2383 if test -f ${srcdir}/$i/configure ; then
2384 configdirs="${configdirs} $i"
2385 fi
2386done
23f6b2f9 2387
e4c9c075
PB		 2388target_configdirs_all="$target_configdirs"
2389target_configdirs=
2390for i in ${target_configdirs_all} ; do
2391 j=`echo $i | sed -e s/target-//g`
2392 if test -f ${srcdir}/$j/configure ; then
2393 target_configdirs="${target_configdirs} $i"
2394 fi
2395done
2396
45b3824d
TS		 2397# libiberty-linker-plugin is special: it doesn't have its own source directory,
2398# so we have to add it after the preceding checks.
2399if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2400then
2401 case " $configdirs " in
2402 *" libiberty "*)
2403 # If we can build libiberty, we can also build libiberty-linker-plugin.
2404 configdirs="$configdirs libiberty-linker-plugin"
2405 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2406 --with-libiberty=../libiberty-linker-plugin";;
2407 *)
2408 AC_MSG_ERROR([libiberty missing]);;
2409 esac
2410fi
2411
fca38047
TS		 2412# Sometimes we have special requirements for the host libiberty.
2413extra_host_libiberty_configure_flags=
2414case " $configdirs " in
15368960 2415 *" lto-plugin "* | *" libcc1 "* | *" gdbserver "*)
fca38047
TS		 2416 # When these are to be built as shared libraries, the same applies to
2417 # libiberty.
2418 extra_host_libiberty_configure_flags=--enable-shared
2419 ;;
04bb15e4
TV		 2420esac
2421AC_SUBST(extra_host_libiberty_configure_flags)
2422
2423# Sometimes we have special requirements for the host zlib.
2424extra_host_zlib_configure_flags=
2425case " $configdirs " in
1c01ebf6
L		 2426 *" bfd "*)
2427 # When bfd is to be built as a shared library, the same applies to
2428 # zlib.
2429 if test "$enable_shared" = "yes"; then
2430 extra_host_zlib_configure_flags=--enable-host-shared
2431 fi
2432 ;;
fca38047 2433esac
1c01ebf6 2434AC_SUBST(extra_host_zlib_configure_flags)
fca38047 2435
e4c9c075
PB		 2436# Produce a warning message for the subdirs we can't configure.
2437# This isn't especially interesting in the Cygnus tree, but in the individual
2438# FSF releases, it's important to let people know when their machine isn't
2439# supported by the one or two programs in a package.
2440
2441if test -n "${notsupp}" && test -z "${norecursion}" ; then
2442 # If $appdirs is non-empty, at least one of those directories must still
2443 # be configured, or we error out. (E.g., if the gas release supports a
2444 # specified target in some subdirs but not the gas subdir, we shouldn't
2445 # pretend that all is well.)
2446 if test -n "$appdirs" ; then
2447 for dir in $appdirs ; do
2448 if test -r $dir/Makefile.in ; then
2449 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2450 appdirs=""
2451 break
2452 fi
23f6b2f9 2453 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
e4c9c075
PB		 2454 appdirs=""
2455 break
2456 fi
2457 fi
2458 done
2459 if test -n "$appdirs" ; then
2460 echo "*** This configuration is not supported by this package." 1>&2
2461 exit 1
2462 fi
2463 fi
2464 # Okay, some application will build, or we don't care to check. Still
2465 # notify of subdirs not getting built.
2466 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2467 echo " ${notsupp}" 1>&2
2468 echo " (Any other directories should still work fine.)" 1>&2
2469fi
2470
2471case "$host" in
2472 *msdosdjgpp*)
2473 enable_gdbtk=no ;;
2474esac
2475
c3a86da9
DJ		 2476# To find our prefix, in gcc_cv_tool_prefix.
2477ACX_TOOL_DIRS
2478
e4c9c075
PB		 2479copy_dirs=
2480
526635cb 2481AC_ARG_WITH([build-sysroot],
33e39b66
AS		 2482 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2483 [use sysroot as the system root during the build])],
526635cb
MM		 2484 [if test x"$withval" != x ; then
2485 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2486 fi],
2487 [SYSROOT_CFLAGS_FOR_TARGET=])
2488AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2489
c8aea42c 2490AC_ARG_WITH([debug-prefix-map],
33e39b66
AS		 2491 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2492 [map A to B, C to D ... in debug information])],
c8aea42c
PB		 2493 [if test x"$withval" != x; then
2494 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2495 for debug_map in $withval; do
2496 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2497 done
2498 fi],
2499 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2500AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2501
1c8bd6a3
PB		 2502# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2503# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2504# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2505# We want to ensure that TARGET libraries (which we know are built with
2506# gcc) are built with "-O2 -g", so include those options when setting
2507# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2508if test "x$CFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2509 if test "x${is_cross_compiler}" = xyes; then
2510 CFLAGS_FOR_TARGET="-g -O2"
2511 else
2512 CFLAGS_FOR_TARGET=$CFLAGS
2513 case " $CFLAGS " in
2514 *" -O2 "*) ;;
2515 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2516 esac
2517 case " $CFLAGS " in
2518 *" -g "* | *" -g3 "*) ;;
2519 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2520 esac
2521 fi
1c8bd6a3
PB		 2522fi
2523AC_SUBST(CFLAGS_FOR_TARGET)
2524
2525if test "x$CXXFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2526 if test "x${is_cross_compiler}" = xyes; then
2527 CXXFLAGS_FOR_TARGET="-g -O2"
2528 else
2529 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2530 case " $CXXFLAGS " in
2531 *" -O2 "*) ;;
2532 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2533 esac
2534 case " $CXXFLAGS " in
2535 *" -g "* | *" -g3 "*) ;;
2536 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2537 esac
2538 fi
1c8bd6a3
PB		 2539fi
2540AC_SUBST(CXXFLAGS_FOR_TARGET)
2541
6f57bdf6
DK		 2542AC_SUBST(LDFLAGS_FOR_TARGET)
2543
e4c9c075
PB		 2544# Handle --with-headers=XXX. If the value is not "yes", the contents of
2545# the named directory are copied to $(tooldir)/sys-include.
2546if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2547 if test x${is_cross_compiler} = xno ; then
2548 echo 1>&2 '***' --with-headers is only supported when cross compiling
2549 exit 1
2550 fi
2551 if test x"${with_headers}" != xyes ; then
c3a86da9 2552 x=${gcc_cv_tool_prefix}
1c710c3c 2553 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
e4c9c075
PB		 2554 fi
2555fi
2556
2557# Handle --with-libs=XXX. If the value is not "yes", the contents of
2558# the name directories are copied to $(tooldir)/lib. Multiple directories
2559# are permitted.
2560if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2561 if test x${is_cross_compiler} = xno ; then
2562 echo 1>&2 '***' --with-libs is only supported when cross compiling
2563 exit 1
2564 fi
2565 if test x"${with_libs}" != xyes ; then
2566 # Copy the libraries in reverse order, so that files in the first named
2567 # library override files in subsequent libraries.
c3a86da9 2568 x=${gcc_cv_tool_prefix}
e4c9c075 2569 for l in ${with_libs}; do
1c710c3c 2570 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
e4c9c075
PB		 2571 done
2572 fi
2573fi
2574
d7f09764 2575# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
e8b05380
PB		 2576#
2577# This is done by determining whether or not the appropriate directory
2578# is available, and by checking whether or not specific configurations
2579# have requested that this magic not happen.
2580#
2581# The command line options always override the explicit settings in
6b1786aa 2582# configure.ac, and the settings in configure.ac override this magic.
e8b05380
PB		 2583#
2584# If the default for a toolchain is to use GNU as and ld, and you don't
2585# want to do that, then you should use the --without-gnu-as and
d7f09764
DN		 2586# --without-gnu-ld options for the configure script. Similarly, if
2587# the default is to use the included zlib and you don't want to do that,
2588# you should use the --with-system-zlib option for the configure script.
e8b05380
PB		 2589
2590if test x${use_gnu_as} = x &&
2591 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2592 with_gnu_as=yes
2593 extra_host_args="$extra_host_args --with-gnu-as"
2594fi
2595
2596if test x${use_gnu_ld} = x &&
5afab7ad 2597 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
e8b05380
PB		 2598 with_gnu_ld=yes
2599 extra_host_args="$extra_host_args --with-gnu-ld"
2600fi
2601
d7f09764
DN		 2602if test x${use_included_zlib} = x &&
2603 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2604 :
2605else
2606 with_system_zlib=yes
2607 extra_host_args="$extra_host_args --with-system-zlib"
2608fi
2609
e8b05380
PB		 2610# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2611# can detect this case.
2612
2613if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2614 with_newlib=yes
2615 extra_host_args="$extra_host_args --with-newlib"
2616fi
2617
e4c9c075
PB		 2618# Handle ${copy_dirs}
2619set fnord ${copy_dirs}
2620shift
2621while test $# != 0 ; do
2622 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2623 :
2624 else
2625 echo Copying $1 to $2
2626
2627 # Use the install script to create the directory and all required
2628 # parent directories.
2629 if test -d $2 ; then
2630 :
2631 else
2632 echo >config.temp
2633 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2634 fi
2635
2636 # Copy the directory, assuming we have tar.
2637 # FIXME: Should we use B in the second tar? Not all systems support it.
2638 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2639
2640 # It is the responsibility of the user to correctly adjust all
2641 # symlinks. If somebody can figure out how to handle them correctly
2642 # here, feel free to add the code.
2643
2644 echo $1 > $2/COPIED
2645 fi
2646 shift; shift
2647done
2648
e8b05380
PB		 2649# Determine a target-dependent exec_prefix that the installed
2650# gcc will search in. Keep this list sorted by triplet, with
2651# the *-*-osname triplets last.
2652md_exec_prefix=
2653case "${target}" in
30b74385 2654 i[[34567]]86-pc-msdosdjgpp*)
e8b05380
PB		 2655 md_exec_prefix=/dev/env/DJDIR/bin
2656 ;;
e8b05380 2657 *-*-hpux* | \
e8b05380 2658 *-*-nto-qnx* | \
6de66370 2659 *-*-solaris2*)
e8b05380
PB		 2660 md_exec_prefix=/usr/ccs/bin
2661 ;;
2662esac
2663
4977bab6
ZW		 2664extra_arflags_for_target=
2665extra_nmflags_for_target=
2a726918 2666extra_ranlibflags_for_target=
671aa708 2667target_makefile_frag=/dev/null
55380b08 2668case "${target}" in
58e24147
AM		 2669 spu-*-*)
2670 target_makefile_frag="config/mt-spu"
2671 ;;
74ae587e 2672 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
4bf6c438
RS		 2673 target_makefile_frag="config/mt-sde"
2674 ;;
1ec3b87b
RS		 2675 mipsisa*-*-elfoabi*)
2676 target_makefile_frag="config/mt-mips-elfoabi"
2677 ;;
08d0963a
RS		 2678 mips*-*-*linux* | mips*-*-gnu*)
2679 target_makefile_frag="config/mt-mips-gnu"
2680 ;;
707f1839
SL		 2681 nios2-*-elf*)
2682 target_makefile_frag="config/mt-nios2-elf"
2683 ;;
76052545
EB		 2684 *-*-linux-android*)
2685 target_makefile_frag="config/mt-android"
2686 ;;
416ac4d4 2687 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
98a5bb3b 2688 target_makefile_frag="config/mt-gnu"
55380b08 2689 ;;
671aa708 2690 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
4977bab6
ZW		 2691 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2692 # commands to handle both 32-bit and 64-bit objects. These flags are
2693 # harmless if we're using GNU nm or ar.
2694 extra_arflags_for_target=" -X32_64"
2695 extra_nmflags_for_target=" -B -X32_64"
55380b08 2696 ;;
c3b7d169
NN		 2697esac
2698
671aa708 2699alphaieee_frag=/dev/null
c3b7d169
NN		 2700case $target in
2701 alpha*-*-*)
2702 # This just makes sure to use the -mieee option to build target libs.
2703 # This should probably be set individually by each library.
2704 alphaieee_frag="config/mt-alphaieee"
55380b08
NN		 2705 ;;
2706esac
701afd4d 2707
55380b08
NN		 2708# If --enable-target-optspace always use -Os instead of -O2 to build
2709# the target libraries, similarly if it is not specified, use -Os
2710# on selected platforms.
671aa708 2711ospace_frag=/dev/null
55380b08
NN		 2712case "${enable_target_optspace}:${target}" in
2713 yes:*)
c3b7d169 2714 ospace_frag="config/mt-ospace"
55380b08
NN		 2715 ;;
2716 :d30v-*)
c3b7d169 2717 ospace_frag="config/mt-d30v"
55380b08 2718 ;;
d9063947 2719 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
c3b7d169 2720 ospace_frag="config/mt-ospace"
55380b08
NN		 2721 ;;
2722 no:* | :*)
2723 ;;
2724 *)
2725 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2726 ;;
2727esac
6599da04 2728
671aa708
NN		 2729# Some systems (e.g., one of the i386-aix systems the gas testers are
2730# using) don't handle "\$" correctly, so don't use it here.
1c710c3c 2731tooldir='${exec_prefix}'/${target_noncanonical}
671aa708
NN		 2732build_tooldir=${tooldir}
2733
671aa708
NN		 2734# Create a .gdbinit file which runs the one in srcdir
2735# and tells GDB to look there for source files.
2736
2737if test -r ${srcdir}/.gdbinit ; then
2738 case ${srcdir} in
2739 .) ;;
2740 *) cat > ./.gdbinit <<EOF
2741# ${NO_EDIT}
2742dir ${srcdir}
2743dir .
2744source ${srcdir}/.gdbinit
2745EOF
2746 ;;
2747 esac
2748fi
2749
6599da04
JM		 2750# Make sure that the compiler is able to generate an executable. If it
2751# can't, we are probably in trouble. We don't care whether we can run the
2752# executable--we might be using a cross compiler--we only care whether it
2753# can be created. At this point the main configure script has set CC.
aeaa0f2f 2754we_are_ok=no
6599da04
JM		 2755echo "int main () { return 0; }" > conftest.c
2756${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
aeaa0f2f
NN		 2757if test $? = 0 ; then
2758 if test -s conftest || test -s conftest.exe ; then
2759 we_are_ok=yes
2760 fi
2761fi
2762case $we_are_ok in
2763 no)
2764 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2765 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2766 rm -f conftest*
2767 exit 1
2768 ;;
2769esac
6599da04
JM		 2770rm -f conftest*
2771
d89f0ad6 2772# Decide which environment variable is used to find dynamic libraries.
fe3d5b7f
NN		 2773case "${host}" in
2774 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
111eeb6e 2775 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
d89f0ad6 2776 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
fe3d5b7f
NN		 2777 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2778esac
fe3d5b7f 2779
d89f0ad6
AL		 2780# On systems where the dynamic library environment variable is PATH,
2781# gcc/ will put dynamic libraries into a subdirectory to avoid adding
2782# built executables to PATH.
2783if test "$RPATH_ENVVAR" = PATH; then
2784 GCC_SHLIB_SUBDIR=/shlib
2785else
2786 GCC_SHLIB_SUBDIR=
2787fi
2788
beeda1d9
JJ		 2789# Adjust the toplevel makefile according to whether bootstrap was selected.
2790case $enable_bootstrap in
2791 yes)
2792 bootstrap_suffix=bootstrap
2793 BUILD_CONFIG=bootstrap-debug
2794 ;;
2795 no)
2796 bootstrap_suffix=no-bootstrap
2797 BUILD_CONFIG=
2798 ;;
2799esac
2800
2801AC_MSG_CHECKING(for default BUILD_CONFIG)
2802
2803AC_ARG_WITH([build-config],
2804 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2805 [use config/NAME.mk build configuration])],
2806 [case $with_build_config in
2807 yes) with_build_config= ;;
2808 no) with_build_config= BUILD_CONFIG= ;;
2809 esac])
2810
2811if test "x${with_build_config}" != x; then
2812 BUILD_CONFIG=$with_build_config
2813else
2814 case $BUILD_CONFIG in
2815 bootstrap-debug)
2816 if echo "int f (void) { return 0; }" > conftest.c &&
2817 ${CC} -c conftest.c &&
2818 mv conftest.o conftest.o.g0 &&
2819 ${CC} -c -g conftest.c &&
2820 mv conftest.o conftest.o.g &&
2821 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2822 :
2823 else
2824 BUILD_CONFIG=
2825 fi
2826 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2827 ;;
2828 esac
2829fi
2830AC_MSG_RESULT($BUILD_CONFIG)
2831AC_SUBST(BUILD_CONFIG)
2832
2833# Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2834AC_MSG_CHECKING([for --enable-vtable-verify])
2835AC_ARG_ENABLE(vtable-verify,
318a4e6d
MF		 2836[AS_HELP_STRING([--enable-vtable-verify],
2837 [Enable vtable verification feature])],
beeda1d9
JJ		 2838[case "$enableval" in
2839 yes) enable_vtable_verify=yes ;;
2840 no) enable_vtable_verify=no ;;
2841 *) enable_vtable_verify=no;;
2842 esac],
2843[enable_vtable_verify=no])
2844AC_MSG_RESULT($enable_vtable_verify)
2845
4977bab6
ZW		 2846# Record target_configdirs and the configure arguments for target and
2847# build configuration in Makefile.
2848target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
23f6b2f9 2849build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
9e1c8fc1 2850bootstrap_fixincludes=no
4977bab6 2851
ad1e5170
JR		 2852# If we are building libgomp, bootstrap it.
2853if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2854 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2855fi
2856
beeda1d9
JJ		 2857# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2858# or bootstrap-ubsan, bootstrap it.
2859if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2860 case "$BUILD_CONFIG" in
170e618e 2861 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
beeda1d9 2862 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
9e1c8fc1 2863 bootstrap_fixincludes=yes
beeda1d9
JJ		 2864 ;;
2865 esac
ac8701fe
L		 2866fi
2867
beeda1d9
JJ		 2868# If we are building libvtv and --enable-vtable-verify, bootstrap it.
2869if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2870 test "$enable_vtable_verify" != no; then
2077db1b
CT		 2871 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2872fi
2873
5fee5ec3
IB		 2874# If we are building libatomic and the list of enabled languages includes the
2875# D frontend, bootstrap it.
2876if echo " ${target_configdirs} " | grep " libatomic " > /dev/null 2>&1; then
2877 case ,${enable_languages}, in
2878 *,d,*)
2879 bootstrap_target_libs=${bootstrap_target_libs}target-libatomic,
2880 ;;
2881 esac
2882fi
2883
4977bab6
ZW		 2884# Determine whether gdb needs tk/tcl or not.
2885# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2886# and in that case we want gdb to be built without tk. Ugh!
2887# In fact I believe gdb is the *only* package directly dependent on tk,
2888# so we should be able to put the 'maybe's in unconditionally and
2889# leave out the maybe dependencies when enable_gdbtk is false. I'm not
2890# 100% sure that that's safe though.
e914a571 2891
b4f96efe 2892gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
4977bab6
ZW		 2893case "$enable_gdbtk" in
2894 no)
2895 GDB_TK="" ;;
e914a571
AC		 2896 yes)
2897 GDB_TK="${gdb_tk}" ;;
4977bab6 2898 *)
e914a571
AC		 2899 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2900 # distro. Eventually someone will fix this and move Insight, nee
2901 # gdbtk to a separate directory.
2902 if test -d ${srcdir}/gdb/gdbtk ; then
2903 GDB_TK="${gdb_tk}"
2904 else
2905 GDB_TK=""
2906 fi
2907 ;;
4977bab6 2908esac
ef9db8d5
DJ		 2909CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2910INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
4977bab6 2911
f9d09df0
TT		 2912# gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
2913# else does, only include them if one of these is built. The Makefile
2914# provides the ordering, so it's enough here to add to the list.
2915case " ${configdirs} " in
2916 *\ gdb\ *)
2917 configdirs="${configdirs} gnulib gdbsupport"
2918 ;;
2919 *\ gdbserver\ *)
2920 configdirs="${configdirs} gnulib gdbsupport"
2921 ;;
f14c9bd4
MF		 2922 *\ sim\ *)
2923 configdirs="${configdirs} gnulib"
2924 ;;
f9d09df0 2925esac
98e5be21 2926
60975492 2927# Strip out unwanted targets.
8b87bb96
NN		 2928
2929# While at that, we remove Makefiles if we were started for recursive
2930# configuration, so that the top-level Makefile reconfigures them,
2931# like we used to do when configure itself was recursive.
8b87bb96 2932
3e54529c
RW		 2933# Loop over modules. We used to use the "$extrasub" feature from Autoconf
2934# but now we're fixing up the Makefile ourselves with the additional
2935# commands passed to AC_CONFIG_FILES. Use separate variables
2936# extrasub-{build,host,target} not because there is any reason to split
2937# the substitutions up that way, but only to remain below the limit of
2938# 99 commands in a script, for HP-UX sed.
da34ca3f
AO		 2939
2940# Do not nest @if/@endif or @unless/@endunless pairs, because
2941# configure will not warn you at all.
8b87bb96 2942
79cd2b23
RW		 2943case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2944 yes:yes:*\ gold\ *:*,c++,*) ;;
2945 yes:yes:*\ gold\ *:*)
2946 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2947 ;;
2948esac
2949
3e54529c 2950extrasub_build=
23f6b2f9 2951for module in ${build_configdirs} ; do
8b87bb96
NN		 2952 if test -z "${no_recursion}" \
2953 && test -f ${build_subdir}/${module}/Makefile; then
2954 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2955 rm -f ${build_subdir}/${module}/Makefile
2956 fi
3e54529c 2957 extrasub_build="$extrasub_build
60975492 2958/^@if build-$module\$/d
5607edfd 2959/^@endif build-$module\$/d
da34ca3f 2960/^@unless build-$module\$/,/^@endunless build-$module\$/d
5607edfd 2961/^@if build-$module-$bootstrap_suffix\$/d
da34ca3f
AO		 2962/^@endif build-$module-$bootstrap_suffix\$/d
2963/^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
8b87bb96 2964done
3e54529c 2965extrasub_host=
8b87bb96 2966for module in ${configdirs} ; do
a6fbc1e2 2967 if test -z "${no_recursion}"; then
f063a9ed 2968 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
a6fbc1e2
AS		 2969 if test -f ${file}; then
2970 echo 1>&2 "*** removing ${file} to force reconfigure"
2971 rm -f ${file}
2972 fi
2973 done
8b87bb96 2974 fi
9e1c8fc1
JJ		 2975 case ${module},${bootstrap_fixincludes} in
2976 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2977 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2978 esac
3e54529c 2979 extrasub_host="$extrasub_host
60975492 2980/^@if $module\$/d
5607edfd 2981/^@endif $module\$/d
da34ca3f 2982/^@unless $module\$/,/^@endunless $module\$/d
9e1c8fc1 2983/^@if $module-$host_bootstrap_suffix\$/d
da34ca3f
AO		 2984/^@endif $module-$host_bootstrap_suffix\$/d
2985/^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
8b87bb96 2986done
3e54529c 2987extrasub_target=
8b87bb96
NN		 2988for module in ${target_configdirs} ; do
2989 if test -z "${no_recursion}" \
2990 && test -f ${target_subdir}/${module}/Makefile; then
2991 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2992 rm -f ${target_subdir}/${module}/Makefile
2993 fi
00020c16
ILT		 2994
2995 # We only bootstrap target libraries listed in bootstrap_target_libs.
2996 case $bootstrap_target_libs in
2997 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2998 *) target_bootstrap_suffix=no-bootstrap ;;
2999 esac
3000
3e54529c 3001 extrasub_target="$extrasub_target
60975492 3002/^@if target-$module\$/d
5607edfd 3003/^@endif target-$module\$/d
da34ca3f 3004/^@unless target-$module\$/,/^@endunless target-$module\$/d
00020c16 3005/^@if target-$module-$target_bootstrap_suffix\$/d
da34ca3f
AO		 3006/^@endif target-$module-$target_bootstrap_suffix\$/d
3007/^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
4977bab6 3008done
f516a7da 3009
3e54529c
RW		 3010# Do the final fixup along with target modules.
3011extrasub_target="$extrasub_target
da34ca3f
AO		 3012/^@if /,/^@endif /d
3013/^@unless /d
3014/^@endunless /d"
4977bab6 3015
4a5e71f2
L		 3016if test "$enable_pgo_build" != "no"; then
3017 extrasub_build="$extrasub_build
3018/^@if pgo-build\$/d
3019/^@endif pgo-build\$/d"
3020fi
3021
4977bab6
ZW		 3022# Create the serialization dependencies. This uses a temporary file.
3023
ade82b16 3024AC_ARG_ENABLE([serial-configure],
33e39b66
AS		 3025[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
3026 [force sequential configuration of
3027 sub-packages for the host, target or build
3028 machine, or all sub-packages])])
bf1d3e81
NN		 3029
3030case ${enable_serial_configure} in
3031 yes)
3032 enable_serial_build_configure=yes
3033 enable_serial_host_configure=yes
3034 enable_serial_target_configure=yes
3035 ;;
3036esac
ade82b16 3037
4977bab6
ZW		 3038# These force 'configure's to be done one at a time, to avoid problems
3039# with contention over a shared config.cache.
3040rm -f serdep.tmp
ade82b16 3041echo '# serdep.tmp' > serdep.tmp
4977bab6 3042olditem=
bf1d3e81 3043test "x${enable_serial_build_configure}" = xyes &&
4977bab6
ZW		 3044for item in ${build_configdirs} ; do
3045 case ${olditem} in
3046 "") ;;
ade82b16 3047 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3048 esac
3049 olditem=${item}
3050done
3051olditem=
bf1d3e81 3052test "x${enable_serial_host_configure}" = xyes &&
4977bab6
ZW		 3053for item in ${configdirs} ; do
3054 case ${olditem} in
3055 "") ;;
ade82b16 3056 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3057 esac
3058 olditem=${item}
3059done
3060olditem=
bf1d3e81 3061test "x${enable_serial_target_configure}" = xyes &&
4977bab6
ZW		 3062for item in ${target_configdirs} ; do
3063 case ${olditem} in
3064 "") ;;
ade82b16 3065 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3066 esac
3067 olditem=${item}
3068done
671aa708
NN		 3069serialization_dependencies=serdep.tmp
3070AC_SUBST_FILE(serialization_dependencies)
fe3d5b7f 3071
ade82b16 3072# Base args. Strip norecursion, cache-file, srcdir, host, build,
1c710c3c 3073# target, nonopt, and variable assignments. These are the ones we
f1a036e4
NC		 3074# might not want to pass down to subconfigures. The exception being
3075# --cache-file=/dev/null, which is used to turn off the use of cache
3076# files altogether, and which should be passed on to subconfigures.
3077# Also strip program-prefix, program-suffix, and program-transform-name,
3078# so that we can pass down a consistent program-transform-name.
1c710c3c 3079baseargs=
29a63921 3080tbaseargs=
1c710c3c
DJ		 3081keep_next=no
3082skip_next=no
3083eval "set -- $ac_configure_args"
44bfc3ac
DJ		 3084for ac_arg
3085do
1c710c3c
DJ		 3086 if test X"$skip_next" = X"yes"; then
3087 skip_next=no
3088 continue
3089 fi
3090 if test X"$keep_next" = X"yes"; then
3091 case $ac_arg in
3092 *\'*)
3093 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3094 esac
3095 baseargs="$baseargs '$ac_arg'"
29a63921 3096 tbaseargs="$tbaseargs '$ac_arg'"
1c710c3c
DJ		 3097 keep_next=no
3098 continue
3099 fi
3100
3101 # Handle separated arguments. Based on the logic generated by
3102 # autoconf 2.59.
3103 case $ac_arg in
3104 *=* | --config-cache | -C | -disable-* | --disable-* \
3105 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3106 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3107 | -with-* | --with-* | -without-* | --without-* | --x)
3108 separate_arg=no
3109 ;;
3110 -*)
3111 separate_arg=yes
3112 ;;
3113 *)
3114 separate_arg=no
3115 ;;
3116 esac
3117
29a63921
AO		 3118 skip_targ=no
3119 case $ac_arg in
3120changequote(,)
3121 --with-* | --without-*)
3122 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3123
3124 case $libopt in
3125 *[-_]include)
3126 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3127 ;;
3128 *[-_]lib)
3129 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3130 ;;
3131 *)
3132 lib=$libopt
3133 ;;
3134 esac
3135changequote([,])
3136
3137 case $lib in
4a9bb2aa 3138 mpc | mpfr | gmp | isl)
29a63921
AO		 3139 # If we're processing --with-$lib, --with-$lib-include or
3140 # --with-$lib-lib, for one of the libs above, and target is
3141 # different from host, don't pass the current argument to any
3142 # target library's configure.
3143 if test x$is_cross_compiler = xyes; then
3144 skip_targ=yes
3145 fi
3146 ;;
3147 esac
3148 ;;
3149 esac
3150
1c710c3c 3151 case "$ac_arg" in
f1a036e4
NC		 3152 --cache-file=/dev/null | \
3153 -cache-file=/dev/null )
3154 # Handled here to avoid the test to skip args below.
3155 baseargs="$baseargs '$ac_arg'"
29a63921 3156 tbaseargs="$tbaseargs '$ac_arg'"
f1a036e4
NC		 3157 # Assert: $separate_arg should always be no.
3158 keep_next=$separate_arg
3159 ;;
1c710c3c
DJ		 3160 --no*)
3161 continue
3162 ;;
3163 --c* | \
3164 --sr* | \
3165 --ho* | \
3166 --bu* | \
3167 --t* | \
3168 --program-* | \
3169 -cache_file* | \
3170 -srcdir* | \
3171 -host* | \
3172 -build* | \
3173 -target* | \
3174 -program-prefix* | \
3175 -program-suffix* | \
3176 -program-transform-name* )
3177 skip_next=$separate_arg
3178 continue
3179 ;;
3180 -*)
3181 # An option. Add it.
3182 case $ac_arg in
3183 *\'*)
3184 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3185 esac
3186 baseargs="$baseargs '$ac_arg'"
29a63921
AO		 3187 if test X"$skip_targ" = Xno; then
3188 tbaseargs="$tbaseargs '$ac_arg'"
3189 fi
1c710c3c
DJ		 3190 keep_next=$separate_arg
3191 ;;
3192 *)
3193 # Either a variable assignment, or a nonopt (triplet). Don't
3194 # pass it down; let the Makefile handle this.
3195 continue
3196 ;;
3197 esac
3198done
3199# Remove the initial space we just introduced and, as these will be
3200# expanded by make, quote '$'.
3201baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
6599da04 3202
43bb47c2
DJ		 3203# Add in --program-transform-name, after --program-prefix and
3204# --program-suffix have been applied to it. Autoconf has already
3205# doubled dollar signs and backslashes in program_transform_name; we want
3206# the backslashes un-doubled, and then the entire thing wrapped in single
3207# quotes, because this will be expanded first by make and then by the shell.
3208# Also, because we want to override the logic in subdir configure scripts to
3209# choose program_transform_name, replace any s,x,x, with s,y,y,.
3210sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3211${program_transform_name}
3212EOF_SED
3213gcc_transform_name=`cat conftestsed.out`
3214rm -f conftestsed.out
3215baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
29a63921 3216tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
d9acb717
RW		 3217if test "$silent" = yes; then
3218 baseargs="$baseargs --silent"
29a63921 3219 tbaseargs="$tbaseargs --silent"
d9acb717 3220fi
0115d4a3 3221baseargs="$baseargs --disable-option-checking"
29a63921 3222tbaseargs="$tbaseargs --disable-option-checking"
43bb47c2 3223
ffedf511
RW		 3224# Record and document user additions to sub configure arguments.
3225AC_ARG_VAR([build_configargs],
3226 [additional configure arguments for build directories])
3227AC_ARG_VAR([host_configargs],
3228 [additional configure arguments for host directories])
3229AC_ARG_VAR([target_configargs],
3230 [additional configure arguments for target directories])
3231
e490616e
ZW		 3232# For the build-side libraries, we just need to pretend we're native,
3233# and not use the same cache file. Multilibs are neither needed nor
3d96b0d0
HPN		 3234# desired. We can't even use the same cache file for all build-side
3235# libraries, as they're compiled differently; some with C, some with
3236# C++ or with different feature-enabling options.
3237build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
e254d6b5 3238
4977bab6
ZW		 3239# For host modules, accept cache file option, or specification as blank.
3240case "${cache_file}" in
3241"") # empty
3242 cache_file_option="" ;;
671aa708 3243/* | [[A-Za-z]]:[[\\/]]* ) # absolute path
4977bab6
ZW		 3244 cache_file_option="--cache-file=${cache_file}" ;;
3245*) # relative path
3246 cache_file_option="--cache-file=../${cache_file}" ;;
3247esac
3248
09438bde
NN		 3249# Host dirs don't like to share a cache file either, horribly enough.
3250# This seems to be due to autoconf 2.5x stupidity.
ffedf511 3251host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
4977bab6 3252
29a63921 3253target_configargs="$target_configargs ${tbaseargs}"
e490616e 3254
6599da04
JM		 3255# Passing a --with-cross-host argument lets the target libraries know
3256# whether they are being built with a cross-compiler or being built
3257# native. However, it would be better to use other mechanisms to make the
3258# sorts of decisions they want to make on this basis. Please consider
3259# this option to be deprecated. FIXME.
aeaa0f2f 3260if test x${is_cross_compiler} = xyes ; then
1c710c3c 3261 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
6599da04
JM		 3262fi
3263
79e0604d
FXC		 3264# Special user-friendly check for native x86_64-linux build, if
3265# multilib is not explicitly enabled.
3266case "$target:$have_compiler:$host:$target:$enable_multilib" in
3267 x86_64-*linux*:yes:$build:$build:)
e640447c 3268 # Make sure we have a development environment that handles 32-bit
79e0604d
FXC		 3269 dev64=no
3270 echo "int main () { return 0; }" > conftest.c
3271 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3272 if test $? = 0 ; then
3273 if test -s conftest || test -s conftest.exe ; then
3274 dev64=yes
3275 fi
3276 fi
3277 rm -f conftest*
3278 if test x${dev64} != xyes ; then
e640447c 3279 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		 3280 fi
3281 ;;
3282esac
3283
dc683a3f
RW		 3284# Default to --enable-multilib.
3285if test x${enable_multilib} = x ; then
3fedb745 3286 target_configargs="--enable-multilib ${target_configargs}"
dc683a3f 3287fi
6599da04 3288
5d4a5ee6
JL		 3289# Pass --with-newlib if appropriate. Note that target_configdirs has
3290# changed from the earlier setting of with_newlib.
aeaa0f2f 3291if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3fedb745 3292 target_configargs="--with-newlib ${target_configargs}"
5d4a5ee6
JL		 3293fi
3294
6b9eb62c
NN		 3295# Different target subdirs use different values of certain variables
3296# (notably CXX). Worse, multilibs use *lots* of different values.
3297# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3298# it doesn't automatically accept command-line overrides of them.
3299# This means it's not safe for target subdirs to share a cache file,
3300# which is disgusting, but there you have it. Hopefully this can be
3301# fixed in future. It's still worthwhile to use a cache file for each
3302# directory. I think.
3303
bebcd931
MS		 3304# Pass the appropriate --build, --host, --target and --cache-file arguments.
3305# We need to pass --target, as newer autoconf's requires consistency
3306# for target_alias and gcc doesn't manage it consistently.
e69bf64b 3307target_configargs="--cache-file=./config.cache ${target_configargs}"
e490616e 3308
b87487b6 3309FLAGS_FOR_TARGET=
bb654703 3310case " $target_configdirs " in
7965440a 3311 *" newlib "*)
3fedb745 3312 case " $target_configargs " in
7965440a 3313 *" --with-newlib "*)
b87487b6 3314 case "$target" in
5d571eaa 3315 *-cygwin*)
443e6238 3316 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
5d571eaa 3317 ;;
b87487b6
AO		 3318 esac
3319
afd7db25 3320 # If we're not building GCC, don't discard standard headers.
ef40bc65 3321 if test -d ${srcdir}/gcc; then
d4eb109c 3322 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
afd7db25
AO		 3323
3324 if test "${build}" != "${host}"; then
3325 # On Canadian crosses, CC_FOR_TARGET will have already been set
3326 # by `configure', so we won't have an opportunity to add -Bgcc/
3327 # to it. This is right: we don't want to search that directory
3328 # for binaries, but we want the header files in there, so add
3329 # them explicitly.
0463992b 3330 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
afd7db25
AO		 3331
3332 # Someone might think of using the pre-installed headers on
3333 # Canadian crosses, in case the installed compiler is not fully
3334 # compatible with the compiler being built. In this case, it
3335 # would be better to flag an error than risking having
3336 # incompatible object files being constructed. We can't
3337 # guarantee that an error will be flagged, but let's hope the
3338 # compiler will do it, when presented with incompatible header
3339 # files.
3340 fi
d4eb109c
AO		 3341 fi
3342
ab50d72b 3343 case "${target}-${is_cross_compiler}" in
f2a0e225 3344 i[[3456789]]86-*-linux*-no)
ab50d72b
DD		 3345 # Here host == target, so we don't need to build gcc,
3346 # so we don't want to discard standard headers.
3347 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
ab50d72b
DD		 3348 ;;
3349 *)
3350 # If we're building newlib, use its generic headers last, but search
3351 # for any libc-related directories first (so make it the last -B
3352 # switch).
3353 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
c03353e2
RIL		 3354
3355 # If we're building libgloss, find the startup file, simulator library
3356 # and linker script.
3357 case " $target_configdirs " in
3358 *" libgloss "*)
3359 # Look for startup file, simulator library and maybe linker script.
3360 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3361 # Look for libnosys.a in case the target needs it.
3362 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3363 # Most targets have the linker script in the source directory.
3364 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3365 ;;
3366 esac
ab50d72b
DD		 3367 ;;
3368 esac
b87487b6 3369 ;;
7965440a
AO		 3370 esac
3371 ;;
b87487b6 3372esac
5d571eaa 3373
b91f0a41 3374case "$target" in
5d571eaa
OS		 3375 x86_64-*mingw* | *-w64-mingw*)
3376 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3377 # however, use a symlink named 'mingw' in ${prefix} .
3378 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3379 ;;
3380 *-mingw*)
3381 # MinGW can't be handled as Cygwin above since it does not use newlib.
3382 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3383 ;;
b91f0a41 3384esac
d4eb109c 3385
6691a79e
ME		 3386# Allow the user to override the flags for
3387# our build compiler if desired.
f019adc1
MF		 3388if test x"${build}" = x"${host}" ; then
3389 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
84401ce5 3390 CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}}
f019adc1
MF		 3391 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3392 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3393fi
6691a79e 3394
d4eb109c
AO		 3395# On Canadian crosses, we'll be searching the right directories for
3396# the previously-installed cross compiler, so don't bother to add
3397# flags for directories within the install tree of the compiler
3398# being built; programs in there won't even run.
ef40bc65 3399if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
b87487b6 3400 # Search for pre-installed headers if nothing else fits.
9124bc53 3401 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
b87487b6 3402fi
d4eb109c 3403
bb654703 3404if test "x${use_gnu_ld}" = x &&
55380b08 3405 echo " ${configdirs} " | grep " ld " > /dev/null ; then
b87487b6 3406 # Arrange for us to find uninstalled linker scripts.
215c351a 3407 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
b87487b6
AO		 3408fi
3409
e88a2c09
DD		 3410# Search for other target-specific linker scripts and such.
3411case "${target}" in
3e19841a
PB		 3412 mep*)
3413 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3414 ;;
9b8ffbb8
OH		 3415 # The VxWorks support for shared libraries is getting in
3416 # incrementally. Make sure it doesn't get activated implicitly:
3417 *vxworks*)
3418 if test "${enable_shared-unset}" = unset ; then
3419 enable_shared=no
3420 # So the build of libraries knows ...
3421 target_configargs="${target_configargs} --disable-shared"
3422 # So gcc knows ...
3423 host_configargs="${host_configargs} --disable-shared"
3424 fi
3425 ;;
e88a2c09
DD		 3426esac
3427
671aa708 3428# Makefile fragments.
7b61653a
PE		 3429for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3430do
3431 eval fragval=\$$frag
3432 if test $fragval != /dev/null; then
3433 eval $frag=${srcdir}/$fragval
3434 fi
3435done
671aa708
NN		 3436AC_SUBST_FILE(host_makefile_frag)
3437AC_SUBST_FILE(target_makefile_frag)
3438AC_SUBST_FILE(alphaieee_frag)
3439AC_SUBST_FILE(ospace_frag)
3440
3441# Miscellanea: directories, flags, etc.
671aa708 3442AC_SUBST(RPATH_ENVVAR)
d89f0ad6 3443AC_SUBST(GCC_SHLIB_SUBDIR)
671aa708
NN		 3444AC_SUBST(tooldir)
3445AC_SUBST(build_tooldir)
ef9db8d5 3446AC_SUBST(CONFIGURE_GDB_TK)
671aa708 3447AC_SUBST(GDB_TK)
ef9db8d5 3448AC_SUBST(INSTALL_GDB_TK)
671aa708
NN		 3449
3450# Build module lists & subconfigure args.
671aa708 3451AC_SUBST(build_configargs)
23f6b2f9 3452AC_SUBST(build_configdirs)
671aa708
NN		 3453
3454# Host module lists & subconfigure args.
3455AC_SUBST(host_configargs)
3456AC_SUBST(configdirs)
aae29963 3457AC_SUBST(target_configdirs)
671aa708
NN		 3458
3459# Target module lists & subconfigure args.
671aa708 3460AC_SUBST(target_configargs)
ee2312f3 3461
671aa708
NN		 3462
3463# Build tools.
0999159b
PB		 3464AC_SUBST(AR_FOR_BUILD)
3465AC_SUBST(AS_FOR_BUILD)
671aa708 3466AC_SUBST(CC_FOR_BUILD)
0999159b 3467AC_SUBST(CFLAGS_FOR_BUILD)
84401ce5
RP		 3468AC_SUBST(CPP_FOR_BUILD)
3469AC_SUBST(CPPFLAGS_FOR_BUILD)
0999159b
PB		 3470AC_SUBST(CXXFLAGS_FOR_BUILD)
3471AC_SUBST(CXX_FOR_BUILD)
3472AC_SUBST(DLLTOOL_FOR_BUILD)
3b5e8ee4 3473AC_SUBST(DSYMUTIL_FOR_BUILD)
0999159b 3474AC_SUBST(GFORTRAN_FOR_BUILD)
632e2a07 3475AC_SUBST(GOC_FOR_BUILD)
b4c522fa 3476AC_SUBST(GDC_FOR_BUILD)
0999159b
PB		 3477AC_SUBST(LDFLAGS_FOR_BUILD)
3478AC_SUBST(LD_FOR_BUILD)
3479AC_SUBST(NM_FOR_BUILD)
3480AC_SUBST(RANLIB_FOR_BUILD)
3481AC_SUBST(WINDMC_FOR_BUILD)
3482AC_SUBST(WINDRES_FOR_BUILD)
671aa708 3483
2abefe3d
PB		 3484# Generate default definitions for YACC, M4, LEX and other programs that run
3485# on the build machine. These are used if the Makefile can't locate these
3486# programs in objdir.
3487MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3488
3489AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3490case " $build_configdirs " in
3491 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2abefe3d
PB		 3492esac
3493
3494AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3495case " $build_configdirs " in
3496 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3497esac
3498
3499AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3500case " $build_configdirs " in
3501 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3502esac
3503
3504AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3505case " $build_configdirs " in
3506 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3507 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3508esac
3509
3510AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3511case " $build_configdirs " in
3512 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3513esac
3514
3515AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3516case " $build_configdirs " in
3517 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3518 *)
3519changequote(,)
d18ff35a 3520 # For an installed makeinfo, we require it to be from texinfo 4.7 or
2abefe3d
PB		 3521 # higher, else we use the "missing" dummy.
3522 if ${MAKEINFO} --version \
d18ff35a 3523 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
2abefe3d
PB		 3524 :
3525 else
3526 MAKEINFO="$MISSING makeinfo"
3527 fi
3528 ;;
3529changequote([,])
3530esac
3531
3532# FIXME: expect and dejagnu may become build tools?
3533
3534AC_CHECK_PROGS(EXPECT, expect, expect)
3535case " $configdirs " in
3536 *" expect "*)
3537 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3538 ;;
3539esac
3540
3541AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3542case " $configdirs " in
3543 *" dejagnu "*)
c394e891 3544 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2abefe3d
PB		 3545 ;;
3546esac
3547
4e3dcf20 3548
671aa708 3549# Host tools.
2693c0b0
PB		 3550NCN_STRICT_CHECK_TOOLS(AR, ar)
3551NCN_STRICT_CHECK_TOOLS(AS, as)
3552NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3b5e8ee4 3553NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil)
2693c0b0 3554NCN_STRICT_CHECK_TOOLS(LD, ld)
2abefe3d 3555NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2693c0b0 3556NCN_STRICT_CHECK_TOOLS(NM, nm)
8927b7c0
RO		 3557NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3558NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
2693c0b0 3559NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
901119ae 3560NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
2693c0b0
PB		 3561NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3562NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
e4a9a572 3563NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
e7a82751 3564NCN_STRICT_CHECK_TOOLS(READELF, readelf)
671aa708
NN		 3565AC_SUBST(CC)
3566AC_SUBST(CXX)
3567AC_SUBST(CFLAGS)
3568AC_SUBST(CXXFLAGS)
5fee5ec3
IB		 3569AC_SUBST(GDC)
3570AC_SUBST(GDCFLAGS)
671aa708 3571
2abefe3d 3572# Target tools.
e8b05380 3573AC_ARG_WITH([build-time-tools],
33e39b66
AS		 3574 [AS_HELP_STRING([--with-build-time-tools=PATH],
3575 [use given path to find target tools during the build])],
e8b05380
PB		 3576 [case x"$withval" in
3577 x/*) ;;
3578 *)
3579 with_build_time_tools=
3580 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3581 ;;
3582 esac],
3583 [with_build_time_tools=])
3584
2693c0b0
PB		 3585NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3586NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2693c0b0 3587NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2693c0b0 3588NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
632e2a07 3589NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
b4c522fa 3590NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
1eee94d3 3591NCN_STRICT_CHECK_TARGET_TOOLS(GM2_FOR_TARGET, gm2)
e8b05380
PB		 3592
3593ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3594ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3595ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3b5e8ee4 3596ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil)
e8b05380
PB		 3597ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3598ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3599ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
9bccfdf5 3600ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
e8b05380 3601ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
e4a9a572 3602ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
8927b7c0 3603ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
e7a82751 3604ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
e8b05380
PB		 3605ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3606ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
901119ae 3607ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
4de997d1 3608
2abefe3d
PB		 3609RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3610
3611GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3612GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3613GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
b3f122e0 3614dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
2abefe3d 3615GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2077db1b 3616 [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		 3617 c++)
3618GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2077db1b 3619 [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		 3620 c++)
3621GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3b5e8ee4 3622GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL)
2abefe3d 3623GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2abefe3d
PB		 3624GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3625 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
632e2a07
ILT		 3626GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3627 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
b4c522fa
IB		 3628GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3629 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
1eee94d3
GM		 3630GCC_TARGET_TOOL(gm2, GM2_FOR_TARGET, GM2,
3631 [gcc/gm2 -B$$r/$(HOST_SUBDIR)/gcc/], m2)
2abefe3d
PB		 3632GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3633GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3634GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
ec8fd1c0 3635GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
2abefe3d 3636GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
e4a9a572 3637GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
2abefe3d 3638GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
e7a82751 3639GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
455c8f48 3640GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
2abefe3d 3641GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
901119ae 3642GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
4de997d1 3643
2abefe3d 3644AC_SUBST(FLAGS_FOR_TARGET)
4de997d1 3645AC_SUBST(RAW_CXX_FOR_TARGET)
be912515 3646
671aa708
NN		 3647# Certain tools may need extra flags.
3648AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3649RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3650NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
6599da04 3651
2abefe3d
PB		 3652# When building target libraries, except in a Canadian cross, we use
3653# the same toolchain as the compiler we just built.
3654COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3655COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3656COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3657if test $host = $build; then
3658 case " $configdirs " in
3659 *" gcc "*)
3660 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3661 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3662 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3663 ;;
3664 esac
3665fi
3666
3667AC_SUBST(COMPILER_AS_FOR_TARGET)
3668AC_SUBST(COMPILER_LD_FOR_TARGET)
3669AC_SUBST(COMPILER_NM_FOR_TARGET)
3670
ee03dc5e
AO		 3671AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3672AC_ARG_ENABLE(maintainer-mode,
33e39b66
AS		 3673[AS_HELP_STRING([--enable-maintainer-mode],
3674 [enable make rules and dependencies not useful
3675 (and sometimes confusing) to the casual installer])],
ee03dc5e
AO		 3676 USE_MAINTAINER_MODE=$enableval,
3677 USE_MAINTAINER_MODE=no)
3678AC_MSG_RESULT($USE_MAINTAINER_MODE)
3679AC_SUBST(MAINTAINER_MODE_TRUE)
3680AC_SUBST(MAINTAINER_MODE_FALSE)
3681if test "$USE_MAINTAINER_MODE" = yes; then
3682 MAINTAINER_MODE_TRUE=
3683 MAINTAINER_MODE_FALSE='#'
3684else
3685 MAINTAINER_MODE_TRUE='#'
3686 MAINTAINER_MODE_FALSE=
3687fi
3688MAINT=$MAINTAINER_MODE_TRUE
3689AC_SUBST(MAINT)dnl
3690
2805b53a
NN		 3691# ---------------------
3692# GCC bootstrap support
3693# ---------------------
3694
3695# Stage specific cflags for build.
3696stage1_cflags="-g"
3697case $build in
3698 vax-*-*)
3699 case ${GCC} in
3700 yes) stage1_cflags="-g -Wa,-J" ;;
3701 *) stage1_cflags="-g -J" ;;
3702 esac ;;
2805b53a 3703esac
0b50988a 3704
2805b53a
NN		 3705AC_SUBST(stage1_cflags)
3706
8efea775
PB		 3707# Enable --enable-checking in stage1 of the compiler.
3708AC_ARG_ENABLE(stage1-checking,
33e39b66
AS		 3709[AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3710 [choose additional checking for stage1 of the compiler])],
8efea775 3711[stage1_checking=--enable-checking=${enable_stage1_checking}],
e643dc23 3712[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
c10b5ea0
JJ		 3713 # For --disable-checking or implicit --enable-checking=release, avoid
3714 # setting --enable-checking=gc in the default stage1 checking for LTO
3715 # bootstraps. See PR62077.
c10b5ea0
JJ		 3716 case $BUILD_CONFIG in
3717 *lto*)
7db11a5a
JJ		 3718 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3719 *)
3720 stage1_checking=--enable-checking=yes,types;;
c10b5ea0 3721 esac
7db11a5a
JJ		 3722 if test "x$enable_checking" = x && \
3723 test -d ${srcdir}/gcc && \
3724 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
c100769b 3725 stage1_checking=--enable-checking=yes,types,extra
7db11a5a 3726 fi
8efea775 3727else
e643dc23 3728 stage1_checking=--enable-checking=$enable_checking,types
8efea775
PB		 3729fi])
3730AC_SUBST(stage1_checking)
3731
2805b53a 3732# Enable -Werror in bootstrap stage2 and later.
2805b53a 3733AC_ARG_ENABLE(werror,
33e39b66 3734[AS_HELP_STRING([--enable-werror],
afd88efc
ML		 3735 [enable -Werror in bootstrap stage2 and later])],
3736[
09a9c095
NN		 3737case ${enable_werror} in
3738 yes) stage2_werror_flag="--enable-werror-always" ;;
3739 *) stage2_werror_flag="" ;;
2805b53a 3740esac
afd88efc
ML		 3741],
3742[
01c712cb
ML		 3743if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3744 case $BUILD_CONFIG in
3745 bootstrap-debug)
3746 stage2_werror_flag="--enable-werror-always" ;;
3747 "")
3748 stage2_werror_flag="--enable-werror-always" ;;
3749 esac
3750fi
afd88efc 3751])
01c712cb 3752
09a9c095 3753AC_SUBST(stage2_werror_flag)
2805b53a 3754
f2689b09
SE		 3755# Specify what files to not compare during bootstrap.
3756
3757compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
1eee94d3
GM		 3758compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/M2Version*"
3759compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/SYSTEM*"
3760compare_exclusions="$compare_exclusions | gcc/m2/gm2version*"
f2689b09
SE		 3761case "$target" in
3762 hppa*64*-*-hpux*) ;;
4f943869 3763 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
f2689b09
SE		 3764esac
3765AC_SUBST(compare_exclusions)
3766
3e54529c
RW		 3767AC_CONFIG_FILES([Makefile],
3768 [sed "$extrasub_build" Makefile |
3769 sed "$extrasub_host" |
3770 sed "$extrasub_target" > mf$$
3771 mv -f mf$$ Makefile],
3772 [extrasub_build="$extrasub_build"
3773 extrasub_host="$extrasub_host"
3774 extrasub_target="$extrasub_target"])
3775AC_OUTPUT
GNU Compiler Collection
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