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beeaf216 1# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
ec8fd1c0 2# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
9e530bcd 3# 2014, 2015, 2016 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)
592c90ff
KG		 26m4_include([libtool.m4])
27m4_include([ltoptions.m4])
28m4_include([ltsugar.m4])
29m4_include([ltversion.m4])
30m4_include([lt~obsolete.m4])
33ad93b9 31m4_include([config/isl.m4])
ad6717df 32
671aa708 33AC_INIT(move-if-change)
df58e648 34AC_PREREQ(2.64)
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
4a9bb2aa 135host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv"
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".
bf1de3f0 143host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools"
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 \
3038054c 153 target-libcilkrts \
5f520819 154 target-liboffloadmic \
48310492 155 target-libatomic \
0a35513e 156 target-libitm \
cb543528 157 target-libstdc++-v3 \
f35db108 158 target-libsanitizer \
2077db1b 159 target-libvtv \
5373cd33 160 target-libmpx \
77008252 161 target-libssp \
1ec601bf 162 target-libquadmath \
6de9cd9a 163 target-libgfortran \
43c40f3e 164 target-boehm-gc \
012447ea 165 target-libffi \
d9cdb878 166 target-libobjc \
632e2a07
ILT		 167 target-libada \
168 target-libgo"
6599da04 169
4dbda6f0
NN		 170# these tools are built using the target libraries, and are intended to
171# run only in the target environment
6599da04 172#
4dbda6f0 173# note: any program that *uses* libraries that are in the "target_libraries"
1bcce263 174# list belongs in this list.
6599da04 175#
85bfb75e 176target_tools="target-rda"
6599da04
JM		 177
178################################################################################
179
6599da04
JM		 180## All tools belong in one of the four categories, and are assigned above
181## We assign ${configdirs} this way to remove all embedded newlines. This
182## is important because configure will choke if they ever get through.
183## ${configdirs} is directories we build using the host tools.
184## ${target_configdirs} is directories we build using the target tools.
6599da04 185configdirs=`echo ${host_libs} ${host_tools}`
4dbda6f0 186target_configdirs=`echo ${target_libraries} ${target_tools}`
71b5d516 187build_configdirs=`echo ${build_libs} ${build_tools}`
8b87bb96 188
ac9e6043 189m4_divert_text([PARSE_ARGS],
87841584
AM		 190[case $srcdir in
191 *" "*)
192m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
193 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
194m4_popdef([AS_MESSAGE_LOG_FD])dnl
195 ;;
196esac
197ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
ac9e6043
RW		 198])
199
6599da04
JM		 200################################################################################
201
6599da04
JM		 202srcname="gnu development package"
203
204# This gets set non-empty for some net releases of packages.
205appdirs=""
206
e1848dde
NN		 207# Define is_cross_compiler to save on calls to 'test'.
208is_cross_compiler=
209if test x"${host}" = x"${target}" ; then
210 is_cross_compiler=no
211else
212 is_cross_compiler=yes
213fi
214
b4acb5ef 215# Find the build and target subdir names.
8b87bb96 216GCC_TOPLEV_SUBDIRS
0db770bd
RW		 217# Be sure to cover against remnants of an in-tree build.
218if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
219 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
220Use a pristine source tree when building in a separate tree])
221fi
f653f0ab 222
55380b08
NN		 223# Skipdirs are removed silently.
224skipdirs=
225# Noconfigdirs are removed loudly.
226noconfigdirs=""
6599da04 227
55380b08
NN		 228use_gnu_ld=
229# Make sure we don't let GNU ld be added if we didn't want it.
230if test x$with_gnu_ld = xno ; then
231 use_gnu_ld=no
5afab7ad 232 noconfigdirs="$noconfigdirs ld gold"
6599da04
JM		 233fi
234
55380b08
NN		 235use_gnu_as=
236# Make sure we don't let GNU as be added if we didn't want it.
237if test x$with_gnu_as = xno ; then
238 use_gnu_as=no
239 noconfigdirs="$noconfigdirs gas"
6599da04
JM		 240fi
241
d7f09764 242use_included_zlib=
a05c2c75
L		 243AC_ARG_WITH(system-zlib,
244[AS_HELP_STRING([--with-system-zlib], [use installed libz])])
d7f09764
DN		 245# Make sure we don't let ZLIB be added if we didn't want it.
246if test x$with_system_zlib = xyes ; then
247 use_included_zlib=no
248 noconfigdirs="$noconfigdirs zlib"
249fi
250
55380b08
NN		 251# some tools are so dependent upon X11 that if we're not building with X,
252# it's not even worth trying to configure, much less build, that tool.
6599da04 253
55380b08
NN		 254case ${with_x} in
255 yes | "") ;; # the default value for this tree is that X11 is available
423ce3eb 256 no)
b4f96efe 257 skipdirs="${skipdirs} tk itcl libgui"
423ce3eb
NN		 258 # We won't be able to build gdbtk without X.
259 enable_gdbtk=no
260 ;;
55380b08
NN		 261 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
262esac
6599da04 263
1bcce263 264# Some are only suitable for cross toolchains.
95ddd785
NN		 265# Remove these if host=target.
266cross_only="target-libgloss target-newlib target-opcodes"
6599da04 267
55380b08
NN		 268case $is_cross_compiler in
269 no) skipdirs="${skipdirs} ${cross_only}" ;;
55380b08 270esac
6599da04 271
0c639b89
DD		 272# If both --with-headers and --with-libs are specified, default to
273# --without-newlib.
9082a750
MR		 274if test x"${with_headers}" != x && test x"${with_headers}" != xno \
275 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
0c639b89
DD		 276 if test x"${with_newlib}" = x ; then
277 with_newlib=no
278 fi
279fi
280
281# Recognize --with-newlib/--without-newlib.
282case ${with_newlib} in
283 no) skipdirs="${skipdirs} target-newlib" ;;
284 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
285esac
286
85c64bbe
BS		 287AC_ARG_ENABLE(as-accelerator-for,
288[AS_HELP_STRING([--enable-as-accelerator-for=ARG],
289 [build as offload target compiler.
4b4f2e35 290 Specify offload host triple by ARG])])
85c64bbe
BS		 291
292AC_ARG_ENABLE(offload-targets,
293[AS_HELP_STRING([--enable-offload-targets=LIST],
294 [enable offloading to devices from comma-separated LIST of
295 TARGET[=DIR]. Use optional path to find offload target compiler
296 during the build])],
297[
298 if test x"$enable_offload_targets" = x; then
299 AC_MSG_ERROR([no offload targets specified])
300 fi
301], [enable_offload_targets=])
302
21539e2e
MK		 303# Handle --enable-gold, --enable-ld.
304# --disable-gold [--enable-ld]
305# Build only ld. Default option.
9580395f
L		 306# --enable-gold [--enable-ld]
307# Build both gold and ld. Install gold as "ld.gold", install ld
308# as "ld.bfd" and "ld".
309# --enable-gold=default [--enable-ld]
21539e2e
MK		 310# Build both gold and ld. Install gold as "ld.gold" and "ld",
311# install ld as "ld.bfd".
312# --enable-gold[=default] --disable-ld
313# Build only gold, which is then installed as both "ld.gold" and "ld".
314# --enable-gold --enable-ld=default
9580395f
L		 315# Build both gold (installed as "ld.gold") and ld (installed as "ld"
316# and ld.bfd).
21539e2e
MK		 317# In other words, ld is default
318# --enable-gold=default --enable-ld=default
319# Error.
320
321default_ld=
5afab7ad 322AC_ARG_ENABLE(gold,
33e39b66
AS		 323[AS_HELP_STRING([[--enable-gold[=ARG]]],
324 [build gold @<:@ARG={default,yes,no}@:>@])],
5afab7ad
ILT		 325ENABLE_GOLD=$enableval,
326ENABLE_GOLD=no)
21539e2e
MK		 327case "${ENABLE_GOLD}" in
328 yes|default)
38e3d868
RM		 329 # Check for ELF target.
330 is_elf=no
331 case "${target}" in
332 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
0e76460f 333 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
8c6d158a 334 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
ff4b7a7e 335 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
38e3d868
RM		 336 case "${target}" in
337 *-*-linux*aout* | *-*-linux*oldld*)
338 ;;
339 *)
340 is_elf=yes
341 ;;
342 esac
343 esac
344
345 if test "$is_elf" = "yes"; then
346 # Check for target supported by gold.
5afab7ad 347 case "${target}" in
7705dfd1 348 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
1b858e76 349 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
21539e2e
MK		 350 configdirs="$configdirs gold"
351 if test x${ENABLE_GOLD} = xdefault; then
352 default_ld=gold
353 fi
38e3d868 354 ENABLE_GOLD=yes
5afab7ad
ILT		 355 ;;
356 esac
38e3d868
RM		 357 fi
358 ;;
359 no)
360 ;;
361 *)
362 AC_MSG_ERROR([invalid --enable-gold argument])
363 ;;
21539e2e
MK		 364esac
365
366AC_ARG_ENABLE(ld,
33e39b66
AS		 367[AS_HELP_STRING([[--enable-ld[=ARG]]],
368 [build ld @<:@ARG={default,yes,no}@:>@])],
21539e2e
MK		 369ENABLE_LD=$enableval,
370ENABLE_LD=yes)
371
372case "${ENABLE_LD}" in
373 default)
9580395f 374 if test x${default_ld} != x; then
21539e2e
MK		 375 AC_MSG_ERROR([either gold or ld can be the default ld])
376 fi
377 ;;
378 yes)
379 ;;
380 no)
381 if test x${ENABLE_GOLD} != xyes; then
382 AC_MSG_WARN([neither ld nor gold are enabled])
383 fi
384 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
385 ;;
386 *)
387 AC_MSG_ERROR([invalid --enable-ld argument])
388 ;;
389esac
5afab7ad 390
78edb32f
L		 391# PR gas/19109
392# Decide the default method for compressing debug sections.
393# Provide a configure time option to override our default.
394AC_ARG_ENABLE(compressed_debug_sections,
324402a0 395[AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
78edb32f
L		 396 [Enable compressed debug sections for gas, gold or ld by
397 default])],
398[
399 if test x"$enable_compressed_debug_sections" = xyes; then
400 AC_MSG_ERROR([no program with compressed debug sections specified])
401 fi
402], [enable_compressed_debug_sections=])
403
6599da04
JM		 404# Configure extra directories which are host specific
405
406case "${host}" in
55380b08 407 *-cygwin*)
4977bab6 408 configdirs="$configdirs libtermcap" ;;
6599da04
JM		 409esac
410
4fab7234
HPN		 411# A target can indicate whether a language isn't supported for some reason.
412# Only spaces may be used in this macro; not newlines or tabs.
413unsupported_languages=
414
6599da04
JM		 415# Remove more programs from consideration, based on the host or
416# target this usually means that a port of the program doesn't
417# exist yet.
418
6599da04 419case "${host}" in
111eeb6e 420 i[[3456789]]86-*-msdosdjgpp*)
c9bdb152 421 noconfigdirs="$noconfigdirs tcl tk itcl"
5d4a5ee6 422 ;;
6599da04
JM		 423esac
424
6de9cd9a 425
87e6d9dc
TB		 426AC_ARG_ENABLE(libquadmath,
427AS_HELP_STRING([--disable-libquadmath],
428 [do not build libquadmath directory]),
429ENABLE_LIBQUADMATH=$enableval,
430ENABLE_LIBQUADMATH=yes)
431if test "${ENABLE_LIBQUADMATH}" = "no" ; then
432 noconfigdirs="$noconfigdirs target-libquadmath"
433fi
434
435
436AC_ARG_ENABLE(libquadmath-support,
437AS_HELP_STRING([--disable-libquadmath-support],
438 [disable libquadmath support for Fortran]),
439ENABLE_LIBQUADMATH_SUPPORT=$enableval,
440ENABLE_LIBQUADMATH_SUPPORT=yes)
441enable_libquadmath_support=
442if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
443 enable_libquadmath_support=no
444fi
445
446
d9cdb878 447AC_ARG_ENABLE(libada,
33e39b66 448[AS_HELP_STRING([--enable-libada], [build libada directory])],
d9cdb878
AC		 449ENABLE_LIBADA=$enableval,
450ENABLE_LIBADA=yes)
451if test "${ENABLE_LIBADA}" != "yes" ; then
5395b47b 452 noconfigdirs="$noconfigdirs gnattools"
d9cdb878
AC		 453fi
454
ef0087a7 455AC_ARG_ENABLE(libssp,
33e39b66 456[AS_HELP_STRING([--enable-libssp], [build libssp directory])],
ef0087a7
KH		 457ENABLE_LIBSSP=$enableval,
458ENABLE_LIBSSP=yes)
ef0087a7 459
2588b26e
RM		 460AC_ARG_ENABLE(libstdcxx,
461AS_HELP_STRING([--disable-libstdcxx],
462 [do not build libstdc++-v3 directory]),
463ENABLE_LIBSTDCXX=$enableval,
464ENABLE_LIBSTDCXX=default)
465[if test "${ENABLE_LIBSTDCXX}" = "no" ; then
1007a55c 466 noconfigdirs="$noconfigdirs target-libstdc++-v3"
2588b26e
RM		 467fi]
468
5f520819
KY		 469# If this is accelerator compiler and its target is intelmic we enable
470# target liboffloadmic by default. If this is compiler with offloading
471# for intelmic we enable host liboffloadmic by default. Otherwise
472# liboffloadmic is disabled by default.
473AC_ARG_ENABLE([liboffloadmic],
474AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
475 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
476[case "$enableval" in
477 no | host | target)
478 enable_liboffloadmic=$enableval ;;
479 *)
480 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
481esac],
4b4f2e35 482[if test x"$enable_as_accelerator_for" != x; then
5f520819
KY		 483 case "${target}" in
484 *-intelmic-* | *-intelmicemul-*)
485 enable_liboffloadmic=target
486 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
487 ;;
488 *)
489 enable_liboffloadmic=no
490 ;;
491 esac
492else
493 case "${enable_offload_targets}" in
494 *-intelmic-* | *-intelmicemul-*)
495 enable_liboffloadmic=host
496 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
497 ;;
498 *)
499 enable_liboffloadmic=no
500 ;;
501 esac
502fi])
503AC_SUBST(extra_liboffloadmic_configure_flags)
504
44a7d18d 505# Enable libgomp by default on hosted POSIX systems, and a few others.
27079765 506if test x$enable_libgomp = x ; then
953ff289 507 case "${target}" in
416ac4d4 508 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
953ff289 509 ;;
8c6d158a 510 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
953ff289 511 ;;
b24513a1 512 *-*-solaris2* | *-*-hpux11*)
953ff289 513 ;;
cac90078 514 *-*-darwin* | *-*-aix*)
953ff289 515 ;;
44a7d18d
TS		 516 nvptx*-*-*)
517 ;;
953ff289
DN		 518 *)
519 noconfigdirs="$noconfigdirs target-libgomp"
520 ;;
521 esac
27079765 522fi
953ff289 523
48310492
RH		 524# Disable libatomic on unsupported systems.
525if test -d ${srcdir}/libatomic; then
526 if test x$enable_libatomic = x; then
527 AC_MSG_CHECKING([for libatomic support])
528 if (srcdir=${srcdir}/libatomic; \
529 . ${srcdir}/configure.tgt; \
530 test -n "$UNSUPPORTED")
531 then
532 AC_MSG_RESULT([no])
533 noconfigdirs="$noconfigdirs target-libatomic"
534 else
535 AC_MSG_RESULT([yes])
536 fi
537 fi
538fi
539
3038054c
BI		 540# Disable libcilkrts on unsupported systems.
541if test -d ${srcdir}/libcilkrts; then
542 if test x$enable_libcilkrts = x; then
543 AC_MSG_CHECKING([for libcilkrts support])
544 if (srcdir=${srcdir}/libcilkrts; \
545 . ${srcdir}/configure.tgt; \
546 test -n "$UNSUPPORTED")
547 then
548 AC_MSG_RESULT([no])
549 noconfigdirs="$noconfigdirs target-libcilkrts"
550 else
551 AC_MSG_RESULT([yes])
552 fi
553 fi
554fi
555
5f520819
KY		 556# Disable liboffloadmic on unsupported systems.
557if test -d ${srcdir}/liboffloadmic; then
558 if test x$enable_liboffloadmic != xno; then
559 AC_MSG_CHECKING([for liboffloadmic support])
560 if (srcdir=${srcdir}/liboffloadmic; \
561 . ${srcdir}/configure.tgt; \
562 test -n "$UNSUPPORTED")
563 then
564 AC_MSG_RESULT([no])
565 noconfigdirs="$noconfigdirs target-liboffloadmic"
566 else
567 AC_MSG_RESULT([yes])
568 fi
569 fi
570fi
571
e948157d
RH		 572# Disable libitm on unsupported systems.
573if test -d ${srcdir}/libitm; then
574 if test x$enable_libitm = x; then
575 AC_MSG_CHECKING([for libitm support])
576 if (srcdir=${srcdir}/libitm; \
577 . ${srcdir}/configure.tgt; \
578 test -n "$UNSUPPORTED")
579 then
580 AC_MSG_RESULT([no])
581 noconfigdirs="$noconfigdirs target-libitm"
582 else
583 AC_MSG_RESULT([yes])
584 fi
585 fi
0a35513e
AH		 586fi
587
93bf5390
RH		 588# Disable libsanitizer on unsupported systems.
589if test -d ${srcdir}/libsanitizer; then
590 if test x$enable_libsanitizer = x; then
591 AC_MSG_CHECKING([for libsanitizer support])
592 if (srcdir=${srcdir}/libsanitizer; \
593 . ${srcdir}/configure.tgt; \
594 test -n "$UNSUPPORTED")
595 then
596 AC_MSG_RESULT([no])
597 noconfigdirs="$noconfigdirs target-libsanitizer"
598 else
599 AC_MSG_RESULT([yes])
600 fi
601 fi
602fi
603
2077db1b
CT		 604# Disable libvtv on unsupported systems.
605if test -d ${srcdir}/libvtv; then
606 if test x$enable_libvtv = x; then
607 AC_MSG_CHECKING([for libvtv support])
608 if (srcdir=${srcdir}/libvtv; \
609 . ${srcdir}/configure.tgt; \
1e74b850 610 test "$VTV_SUPPORTED" != "yes")
2077db1b
CT		 611 then
612 AC_MSG_RESULT([no])
613 noconfigdirs="$noconfigdirs target-libvtv"
614 else
615 AC_MSG_RESULT([yes])
616 fi
617 fi
618fi
619
5373cd33
IE		 620
621# Enable libmpx on supported systems by request.
622if test -d ${srcdir}/libmpx; then
54985c70 623 if test x$enable_libmpx = x; then
5373cd33
IE		 624 AC_MSG_CHECKING([for libmpx support])
625 if (srcdir=${srcdir}/libmpx; \
626 . ${srcdir}/configure.tgt; \
627 test "$LIBMPX_SUPPORTED" != "yes")
628 then
629 AC_MSG_RESULT([no])
630 noconfigdirs="$noconfigdirs target-libmpx"
631 else
632 AC_MSG_RESULT([yes])
633 fi
5373cd33
IE		 634 fi
635fi
636
637
638
d7a29167
DE		 639# Disable libquadmath for some systems.
640case "${target}" in
e7fae550
DE		 641 avr-*-*)
642 noconfigdirs="$noconfigdirs target-libquadmath"
643 ;;
d7a29167
DE		 644 # libquadmath is unused on AIX and libquadmath build process use of
645 # LD_LIBRARY_PATH can break AIX bootstrap.
646 powerpc-*-aix* | rs6000-*-aix*)
647 noconfigdirs="$noconfigdirs target-libquadmath"
648 ;;
649esac
650
1e9e0e23
JM		 651# Disable libssp for some systems.
652case "${target}" in
653 avr-*-*)
b318fb4b 654 # No hosted I/O support.
1e9e0e23
JM		 655 noconfigdirs="$noconfigdirs target-libssp"
656 ;;
657 powerpc-*-aix* | rs6000-*-aix*)
658 noconfigdirs="$noconfigdirs target-libssp"
659 ;;
85b8555e
DD		 660 rl78-*-*)
661 # libssp uses a misaligned load to trigger a fault, but the RL78
662 # doesn't fault for those - instead, it gives a build-time error
663 # for explicit misaligned loads.
664 noconfigdirs="$noconfigdirs target-libssp"
665 ;;
0969ec7d
EB		 666 visium-*-*)
667 # No hosted I/O support.
668 noconfigdirs="$noconfigdirs target-libssp"
669 ;;
1e9e0e23
JM		 670esac
671
1e9e0e23 672# Disable libstdc++-v3 for some systems.
2588b26e
RM		 673# Allow user to override this if they pass --enable-libstdc++-v3
674if test "${ENABLE_LIBSTDCXX}" = "default" ; then
675 case "${target}" in
676 *-*-vxworks*)
677 # VxWorks uses the Dinkumware C++ library.
678 noconfigdirs="$noconfigdirs target-libstdc++-v3"
679 ;;
680 arm*-wince-pe*)
681 # the C++ libraries don't build on top of CE's C libraries
682 noconfigdirs="$noconfigdirs target-libstdc++-v3"
683 ;;
684 avr-*-*)
685 noconfigdirs="$noconfigdirs target-libstdc++-v3"
686 ;;
fef939d6
JB		 687 ft32-*-*)
688 noconfigdirs="$noconfigdirs target-libstdc++-v3"
689 ;;
2588b26e
RM		 690 esac
691fi
1e9e0e23
JM		 692
693# Disable Fortran for some systems.
694case "${target}" in
695 mmix-*-*)
696 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
697 unsupported_languages="$unsupported_languages fortran"
698 ;;
699esac
700
012447ea
JJ		 701# Disable libffi for some systems.
702case "${target}" in
703 powerpc-*-darwin*)
704 ;;
705 i[[3456789]]86-*-darwin*)
706 ;;
707 x86_64-*-darwin[[912]]*)
708 ;;
709 *-*-darwin*)
710 noconfigdirs="$noconfigdirs target-libffi"
711 ;;
712 *-*-netware*)
713 noconfigdirs="$noconfigdirs target-libffi"
714 ;;
715 *-*-phoenix*)
716 noconfigdirs="$noconfigdirs target-libffi"
717 ;;
718 *-*-rtems*)
719 noconfigdirs="$noconfigdirs target-libffi"
720 ;;
721 *-*-tpf*)
722 noconfigdirs="$noconfigdirs target-libffi"
723 ;;
724 *-*-uclinux*)
725 noconfigdirs="$noconfigdirs target-libffi"
726 ;;
727 *-*-vxworks*)
728 noconfigdirs="$noconfigdirs target-libffi"
729 ;;
b20e7532
AT		 730 aarch64*-*-freebsd*)
731 noconfigdirs="$noconfigdirs target-libffi"
732 ;;
012447ea
JJ		 733 alpha*-*-*vms*)
734 noconfigdirs="$noconfigdirs target-libffi"
735 ;;
736 arm*-*-freebsd*)
737 noconfigdirs="$noconfigdirs target-libffi"
738 ;;
739 arm-wince-pe)
740 noconfigdirs="$noconfigdirs target-libffi"
741 ;;
742 arm*-*-symbianelf*)
743 noconfigdirs="$noconfigdirs target-libffi"
744 ;;
745 cris-*-* | crisv32-*-*)
746 case "${target}" in
747 *-*-linux*)
748 ;;
749 *) # See PR46792 regarding target-libffi.
750 noconfigdirs="$noconfigdirs target-libffi";;
751 esac
752 ;;
753 hppa*64*-*-hpux*)
754 noconfigdirs="$noconfigdirs target-libffi"
755 ;;
756 hppa*-hp-hpux11*)
757 ;;
758 hppa*-*-hpux*)
759 noconfigdirs="$noconfigdirs target-libffi"
760 ;;
761 ia64*-*-*vms*)
762 noconfigdirs="$noconfigdirs target-libffi"
763 ;;
764 i[[3456789]]86-w64-mingw*)
765 noconfigdirs="$noconfigdirs target-libffi"
766 ;;
767 i[[3456789]]86-*-mingw*)
768 noconfigdirs="$noconfigdirs target-libffi"
769 ;;
770 x86_64-*-mingw*)
771 noconfigdirs="$noconfigdirs target-libffi"
772 ;;
773 mmix-*-*)
774 noconfigdirs="$noconfigdirs target-libffi"
775 ;;
776 powerpc-*-aix*)
777 # copied from rs6000-*-* entry
778 noconfigdirs="$noconfigdirs target-libffi"
779 ;;
780 rs6000-*-aix*)
781 noconfigdirs="$noconfigdirs target-libffi"
782 ;;
783 ft32-*-*)
784 noconfigdirs="$noconfigdirs target-libffi"
785 ;;
786 *-*-lynxos*)
787 noconfigdirs="$noconfigdirs target-libffi"
788 ;;
789esac
790
791# Disable the go frontend on systems where it is known to not work. Please keep
792# this in sync with contrib/config-list.mk.
793case "${target}" in
794*-*-darwin* | *-*-cygwin* | *-*-mingw* | *-*-aix*)
795 unsupported_languages="$unsupported_languages go"
796 ;;
797esac
798
cdbc9e92
ILT		 799# Disable libgo for some systems where it is known to not work.
800# For testing, you can easily override this with --enable-libgo.
801if test x$enable_libgo = x; then
802 case "${target}" in
803 *-*-darwin*)
804 # PR 46986
805 noconfigdirs="$noconfigdirs target-libgo"
806 ;;
807 *-*-cygwin* | *-*-mingw*)
808 noconfigdirs="$noconfigdirs target-libgo"
809 ;;
810 *-*-aix*)
811 noconfigdirs="$noconfigdirs target-libgo"
812 ;;
813 esac
814fi
815
c03353e2
RIL		 816# Default libgloss CPU subdirectory.
817libgloss_dir="$target_cpu"
6de9cd9a 818
fbcf0dca
JM		 819case "${target}" in
820 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
821 libgloss_dir=wince
822 ;;
4dddfc74
YZ		 823 aarch64*-*-* )
824 libgloss_dir=aarch64
825 ;;
fbcf0dca
JM		 826 arm*-*-*)
827 libgloss_dir=arm
828 ;;
829 cris-*-* | crisv32-*-*)
830 libgloss_dir=cris
831 ;;
832 hppa*-*-*)
833 libgloss_dir=pa
834 ;;
835 i[[3456789]]86-*-*)
836 libgloss_dir=i386
837 ;;
838 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
839 libgloss_dir=m68hc11
840 ;;
841 m68*-*-* | fido-*-*)
842 libgloss_dir=m68k
843 ;;
844 mips*-*-*)
845 libgloss_dir=mips
846 ;;
847 powerpc*-*-*)
848 libgloss_dir=rs6000
849 ;;
850 sparc*-*-*)
851 libgloss_dir=sparc
852 ;;
853esac
854
6a789d5e 855# Disable newlib and libgloss for various target OSes.
6599da04 856case "${target}" in
6a789d5e
JM		 857 alpha*-dec-osf*)
858 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
859 ;;
860 i[[3456789]]86-*-linux*)
861 # This section makes it possible to build newlib natively on linux.
862 # If we are using a cross compiler then don't configure newlib.
863 if test x${is_cross_compiler} != xno ; then
864 noconfigdirs="$noconfigdirs target-newlib"
865 fi
866 noconfigdirs="$noconfigdirs target-libgloss"
867 # If we are not using a cross compiler, do configure newlib.
868 # Note however, that newlib will only be configured in this situation
869 # if the --with-newlib option has been given, because otherwise
870 # 'target-newlib' will appear in skipdirs.
871 ;;
872 i[[3456789]]86-*-rdos*)
873 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
874 ;;
875 sh*-*-pe|mips*-*-pe|arm-wince-pe)
876 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
877 ;;
878 sparc-*-sunos4*)
879 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
880 ;;
881 *-*-aix*)
882 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
883 ;;
884 *-*-beos*)
885 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
886 ;;
3fa03ff9 887 *-*-chorusos)
0036370f 888 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
3fa03ff9 889 ;;
6a789d5e
JM		 890 *-*-dragonfly*)
891 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
892 ;;
893 *-*-freebsd*)
894 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
895 ;;
896 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
897 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
898 ;;
899 *-*-lynxos*)
900 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
901 ;;
902 *-*-mingw*)
903 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
904 ;;
905 *-*-netbsd*)
906 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
907 ;;
908 *-*-netware*)
909 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
910 ;;
911 *-*-tpf*)
912 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
913 ;;
914 *-*-uclinux*)
915 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
916 ;;
917 *-*-vxworks*)
918 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
919 ;;
920esac
921
922case "${target}" in
923 *-*-chorusos)
924 ;;
3be96231
TG		 925 aarch64-*-darwin*)
926 noconfigdirs="$noconfigdirs ld gas gdb gprof"
927 noconfigdirs="$noconfigdirs sim target-rda"
928 ;;
929 arm-*-darwin*)
930 noconfigdirs="$noconfigdirs ld gas gdb gprof"
931 noconfigdirs="$noconfigdirs sim target-rda"
932 ;;
75eeae1a 933 powerpc-*-darwin*)
e1514c3f 934 noconfigdirs="$noconfigdirs ld gas gdb gprof"
9c8f9ec2 935 noconfigdirs="$noconfigdirs sim target-rda"
940cde4d 936 ;;
354ebf88
RW		 937 i[[3456789]]86-*-darwin*)
938 noconfigdirs="$noconfigdirs ld gprof"
939 noconfigdirs="$noconfigdirs sim target-rda"
940 ;;
941 x86_64-*-darwin[[912]]*)
0db3a858
TG		 942 noconfigdirs="$noconfigdirs ld gas gprof"
943 noconfigdirs="$noconfigdirs sim target-rda"
944 ;;
42c1cd8a
AT		 945 *-*-darwin*)
946 noconfigdirs="$noconfigdirs ld gas gdb gprof"
947 noconfigdirs="$noconfigdirs sim target-rda"
42c1cd8a 948 ;;
8c6d158a 949 *-*-dragonfly*)
8c6d158a 950 ;;
c3f84f61 951 *-*-freebsd*)
6de9cd9a
DN		 952 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
953 && test -f /usr/local/include/gmp.h; then
954 with_gmp=/usr/local
955 fi
6de9cd9a 956 ;;
ef4e7569
US		 957 *-*-kaos*)
958 # Remove unsupported stuff on all kaOS configurations.
ef4e7569
US		 959 noconfigdirs="$noconfigdirs target-libgloss"
960 ;;
51584787 961 *-*-netbsd*)
51584787 962 ;;
61fec9ff 963 *-*-netware*)
6599da04 964 ;;
fd6487af
JS		 965 *-*-phoenix*)
966 noconfigdirs="$noconfigdirs target-libgloss"
967 ;;
3fbc0b70 968 *-*-rtems*)
2909494b 969 noconfigdirs="$noconfigdirs target-libgloss"
74ae587e
JBG		 970 # this is not caught below because this stanza matches earlier
971 case $target in
972 or1k*-*-*) noconfigdirs="$noconfigdirs gdb" ;;
973 esac
3fbc0b70 974 ;;
a8ba31f2
EC		 975 # The tpf target doesn't support gdb yet.
976 *-*-tpf*)
6a789d5e 977 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
a8ba31f2 978 ;;
5785c0ed 979 *-*-uclinux*)
6a789d5e 980 noconfigdirs="$noconfigdirs target-rda"
5785c0ed 981 ;;
6599da04 982 *-*-vxworks*)
6599da04 983 ;;
b104e095 984 alpha*-dec-osf*)
603606e7 985 # ld works, but does not support shared libraries.
6599da04 986 # gas doesn't generate exception information.
6a789d5e 987 noconfigdirs="$noconfigdirs gas ld"
6599da04
JM		 988 ;;
989 alpha*-*-*vms*)
2909494b 990 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
6599da04
JM		 991 ;;
992 alpha*-*-*)
993 # newlib is not 64 bit ready
2909494b 994 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 995 ;;
3a685f6f 996 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
b4f96efe 997 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
3a685f6f 998 ;;
2fd88f4f
AK		 999 arc*-*-*)
1000 noconfigdirs="$noconfigdirs sim"
1001 ;;
6599da04 1002 arm-*-pe*)
2909494b 1003 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1004 ;;
5d4a5ee6 1005 arm-*-riscix*)
0036370f 1006 noconfigdirs="$noconfigdirs ld target-libgloss"
5d4a5ee6 1007 ;;
b588ae30
GJL		 1008 avr-*-*)
1009 if test x${with_avrlibc} != xno; then
1010 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1011 fi
1012 ;;
a5a438f5 1013 c4x-*-* | tic4x-*-*)
0036370f 1014 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1015 ;;
0036370f
JM		 1016 tic54x-*-*)
1017 noconfigdirs="$noconfigdirs target-libgloss gdb"
ab50d72b 1018 ;;
6599da04 1019 d10v-*-*)
0036370f 1020 noconfigdirs="$noconfigdirs target-libgloss"
d207ebef
JM		 1021 ;;
1022 d30v-*-*)
0036370f 1023 noconfigdirs="$noconfigdirs gdb"
6599da04 1024 ;;
09b5f8bf 1025 fr30-*-elf*)
2909494b 1026 noconfigdirs="$noconfigdirs gdb"
09b5f8bf 1027 ;;
a05c2c75
L		 1028 ft32-*-*)
1029 noconfigdirs="$noconfigdirs target-rda gprof"
1030 ;;
55f2d967 1031 moxie-*-*)
a05c2c75 1032 noconfigdirs="$noconfigdirs"
55f2d967 1033 ;;
ab50d72b 1034 h8300*-*-*)
2909494b 1035 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1036 ;;
6599da04 1037 h8500-*-*)
0036370f 1038 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1039 ;;
9d069a4f 1040 hppa1.1-*-osf* | hppa1.1-*-bsd* )
9d069a4f 1041 ;;
a05c2c75
L		 1042 hppa*64*-*-hpux*)
1043 noconfigdirs="$noconfigdirs gdb"
1044 ;;
1045 hppa*-*-hpux11*)
1046 noconfigdirs="$noconfigdirs gdb ld"
1047 ;;
4569f85e 1048 hppa*64*-*-linux*)
cdbff0ab 1049 ;;
56f8587a 1050 hppa*-*-linux*)
3e732ba0 1051 ;;
6599da04 1052 hppa*-*-*elf* | \
bae29210 1053 hppa*-*-lites* | \
66350331 1054 hppa*-*-openbsd* | \
bae29210 1055 hppa*64*-*-*)
6599da04 1056 ;;
c03353e2 1057 hppa*-*-pro*)
c03353e2 1058 ;;
6599da04 1059 hppa*-*-*)
2909494b 1060 noconfigdirs="$noconfigdirs ld"
d207ebef 1061 ;;
fb87ad5d 1062 i960-*-*)
0036370f 1063 noconfigdirs="$noconfigdirs gdb"
fb87ad5d 1064 ;;
d207ebef
JM		 1065 ia64*-*-elf*)
1066 # No gdb support yet.
1bcce263 1067 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
d207ebef 1068 ;;
ab50d72b 1069 ia64*-**-hpux*)
5a2931d1 1070 # No ld support yet.
a05c2c75 1071 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
ab50d72b 1072 ;;
52535a64 1073 ia64*-*-*vms*)
091fe9ca
TG		 1074 # No ld support yet.
1075 noconfigdirs="$noconfigdirs libgui itcl ld"
52535a64 1076 ;;
ef4c4300 1077 i[[3456789]]86-w64-mingw*)
ef4c4300
KT		 1078 ;;
1079 i[[3456789]]86-*-mingw*)
b91f0a41 1080 target_configdirs="$target_configdirs target-winsup"
5d571eaa 1081 ;;
d207ebef
JM		 1082 *-*-cygwin*)
1083 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1bcce263 1084 noconfigdirs="$noconfigdirs target-libgloss"
801e2270 1085 # always build newlib if winsup directory is present.
b91f0a41 1086 if test -d "$srcdir/winsup/cygwin"; then
801e2270 1087 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
c8e6cd41 1088 elif test -d "$srcdir/newlib"; then
b91f0a41 1089 echo "Warning: winsup/cygwin is missing so newlib can't be built."
801e2270 1090 fi
5d571eaa 1091 ;;
f2a0e225 1092 i[[3456789]]86-*-pe)
ebb9f8b0 1093 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1094 ;;
f2a0e225 1095 i[[3456789]]86-*-sco3.2v5*)
6599da04
JM		 1096 # The linker does not yet know about weak symbols in COFF,
1097 # and is not configured to handle mixed ELF and COFF.
0036370f 1098 noconfigdirs="$noconfigdirs ld target-libgloss"
6599da04 1099 ;;
f2a0e225 1100 i[[3456789]]86-*-sco*)
0036370f 1101 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1102 ;;
fbdd5d87 1103 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
7c01b2b5 1104 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1105 ;;
f2a0e225 1106 i[[3456789]]86-*-sysv4*)
0036370f 1107 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1108 ;;
f2a0e225 1109 i[[3456789]]86-*-beos*)
6a789d5e 1110 noconfigdirs="$noconfigdirs gdb"
3aa83176 1111 ;;
d1f8db0c 1112 i[[3456789]]86-*-rdos*)
6a789d5e 1113 noconfigdirs="$noconfigdirs gdb"
c03353e2 1114 ;;
d344dce9 1115 mmix-*-*)
2909494b 1116 noconfigdirs="$noconfigdirs gdb"
d344dce9 1117 ;;
ab34901f 1118 mt-*-*)
79dd769c
AH		 1119 noconfigdirs="$noconfigdirs sim"
1120 ;;
6599da04
JM		 1121 powerpc-*-aix*)
1122 # copied from rs6000-*-* entry
6a789d5e 1123 noconfigdirs="$noconfigdirs gprof"
6599da04 1124 ;;
4569f85e 1125 powerpc*-*-winnt* | powerpc*-*-pe*)
6599da04 1126 target_configdirs="$target_configdirs target-winsup"
0036370f 1127 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
6599da04
JM		 1128 # always build newlib.
1129 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1130 ;;
1131 # This is temporary until we can link against shared libraries
1132 powerpcle-*-solaris*)
0036370f 1133 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
6599da04 1134 ;;
0da3b5a7 1135 powerpc-*-beos*)
6a789d5e 1136 noconfigdirs="$noconfigdirs gdb"
d207ebef 1137 ;;
6599da04 1138 rs6000-*-lynxos*)
6a789d5e 1139 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1140 ;;
1141 rs6000-*-aix*)
6a789d5e 1142 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1143 ;;
1144 rs6000-*-*)
2909494b 1145 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1146 ;;
1147 m68k-apollo-*)
0036370f 1148 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
6599da04 1149 ;;
ca9fe997 1150 microblaze*)
2909494b 1151 noconfigdirs="$noconfigdirs gprof"
ca9fe997 1152 ;;
74ae587e 1153 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
d9dced13
RS		 1154 if test x$with_newlib = xyes; then
1155 noconfigdirs="$noconfigdirs gprof"
1156 fi
d9dced13 1157 ;;
6599da04 1158 mips*-*-irix5*)
0036370f 1159 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04
JM		 1160 ;;
1161 mips*-*-irix6*)
2909494b 1162 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1163 ;;
6599da04 1164 mips*-*-bsd*)
bc98bcc4 1165 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
6599da04 1166 ;;
9bec4bf0 1167 mips*-*-linux*)
9bec4bf0 1168 ;;
bc98bcc4
JBG		 1169 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1170 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1171 noconfigdirs="$noconfigdirs ld gas gprof"
1172 ;;
6599da04 1173 mips*-*-*)
2909494b 1174 noconfigdirs="$noconfigdirs gprof"
6599da04 1175 ;;
738f2522 1176 nvptx*-*-*)
738f2522
BS		 1177 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1178 ;;
74ae587e
JBG		 1179 or1k*-*-*)
1180 noconfigdirs="$noconfigdirs gdb"
1181 ;;
bc6d9014 1182 sh-*-*)
ea2002ba
CB		 1183 case "${target}" in
1184 sh*-*-elf)
2909494b 1185 ;;
ea2002ba 1186 *)
2909494b 1187 noconfigdirs="$noconfigdirs target-libgloss" ;;
ea2002ba 1188 esac
6599da04
JM		 1189 ;;
1190 sparc-*-sunos4*)
6a789d5e 1191 if test x${is_cross_compiler} = xno ; then
6599da04
JM		 1192 use_gnu_ld=no
1193 fi
1194 ;;
b42f0d7e 1195 tic6x-*-*)
0d557ff8 1196 noconfigdirs="$noconfigdirs sim"
b42f0d7e 1197 ;;
341c653c 1198 tilepro*-*-* | tilegx*-*-*)
db1d217c
WL		 1199 noconfigdirs="$noconfigdirs sim"
1200 ;;
6599da04 1201 v810-*-*)
0036370f 1202 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
6599da04
JM		 1203 ;;
1204 vax-*-*)
2909494b 1205 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1206 ;;
6599da04
JM		 1207esac
1208
6599da04
JM		 1209# If we aren't building newlib, then don't build libgloss, since libgloss
1210# depends upon some newlib header files.
1211case "${noconfigdirs}" in
1212 *target-libgloss*) ;;
1213 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
55380b08 1214esac
6599da04 1215
55380b08 1216# Work in distributions that contain no compiler tools, like Autoconf.
671aa708 1217host_makefile_frag=/dev/null
55380b08
NN		 1218if test -d ${srcdir}/config ; then
1219case "${host}" in
f2a0e225 1220 i[[3456789]]86-*-msdosdjgpp*)
55380b08
NN		 1221 host_makefile_frag="config/mh-djgpp"
1222 ;;
1223 *-cygwin*)
2a79c47f 1224 ACX_CHECK_CYGWIN_CAT_WORKS
55380b08
NN		 1225 host_makefile_frag="config/mh-cygwin"
1226 ;;
c53a18d3 1227 *-mingw*)
1f5a6b84 1228 host_makefile_frag="config/mh-mingw"
738a52d3 1229 ;;
cabb9d59 1230 alpha*-linux*)
13be44ed
UB		 1231 host_makefile_frag="config/mh-alpha-linux"
1232 ;;
00afcaa0 1233 hppa*-hp-hpux10*)
00afcaa0 1234 host_makefile_frag="config/mh-pa-hpux10"
55380b08 1235 ;;
111eeb6e 1236 hppa*-hp-hpux*)
00afcaa0
PB		 1237 host_makefile_frag="config/mh-pa"
1238 ;;
1239 hppa*-*)
1240 host_makefile_frag="config/mh-pa"
1241 ;;
d8ed14ce
IS		 1242 *-*-darwin*)
1243 host_makefile_frag="config/mh-darwin"
be8fff81 1244 ;;
d19bca38
PB		 1245 powerpc-*-aix*)
1246 host_makefile_frag="config/mh-ppc-aix"
1247 ;;
1248 rs6000-*-aix*)
1249 host_makefile_frag="config/mh-ppc-aix"
1250 ;;
55380b08
NN		 1251esac
1252fi
1253
e4c9c075 1254if test "${build}" != "${host}" ; then
0999159b
PB		 1255 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1256 AS_FOR_BUILD=${AS_FOR_BUILD-as}
e4c9c075 1257 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
0999159b
PB		 1258 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1259 GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj}
1260 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
632e2a07 1261 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
0999159b
PB		 1262 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1263 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1264 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1265 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1266 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1267 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
e4c9c075 1268else
0999159b
PB		 1269 AR_FOR_BUILD="\$(AR)"
1270 AS_FOR_BUILD="\$(AS)"
e4c9c075 1271 CC_FOR_BUILD="\$(CC)"
0999159b
PB		 1272 CXX_FOR_BUILD="\$(CXX)"
1273 GCJ_FOR_BUILD="\$(GCJ)"
1274 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
632e2a07 1275 GOC_FOR_BUILD="\$(GOC)"
0999159b
PB		 1276 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1277 LD_FOR_BUILD="\$(LD)"
1278 NM_FOR_BUILD="\$(NM)"
1279 RANLIB_FOR_BUILD="\$(RANLIB)"
1280 WINDRES_FOR_BUILD="\$(WINDRES)"
1281 WINDMC_FOR_BUILD="\$(WINDMC)"
c3a86da9 1282fi
e4c9c075 1283
c3a86da9
DJ		 1284AC_PROG_CC
1285AC_PROG_CXX
1286
1287# We must set the default linker to the linker used by gcc for the correct
1288# operation of libtool. If LD is not defined and we are using gcc, try to
1289# set the LD default to the ld used by gcc.
1290if test -z "$LD"; then
1291 if test "$GCC" = yes; then
1292 case $build in
1293 *-*-mingw*)
1294 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1295 *)
1296 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1297 esac
1298 case $gcc_prog_ld in
1299 # Accept absolute paths.
1300 [[\\/]* | [A-Za-z]:[\\/]*)]
1301 LD="$gcc_prog_ld" ;;
1302 esac
1303 fi
e4c9c075
PB		 1304fi
1305
0b21f5d3
EB		 1306# Check whether -static-libstdc++ -static-libgcc is supported.
1307have_static_libs=no
1308if test "$GCC" = yes; then
1309 saved_LDFLAGS="$LDFLAGS"
1310
1311 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1312 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1313 AC_LANG_PUSH(C++)
0d6414b2
EB		 1314 AC_LINK_IFELSE([
1315#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1316#error -static-libstdc++ not implemented
1317#endif
1318int main() {}],
0b21f5d3
EB		 1319 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1320 [AC_MSG_RESULT([no])])
1321 AC_LANG_POP(C++)
1322
1323 LDFLAGS="$saved_LDFLAGS"
1324fi
1325
e4c9c075 1326ACX_PROG_GNAT
a76494aa 1327ACX_PROG_CMP_IGNORE_INITIAL
e4c9c075 1328
ff3ac0f4
ILT		 1329AC_ARG_ENABLE([bootstrap],
1330[AS_HELP_STRING([--enable-bootstrap],
1331 [enable bootstrapping @<:@yes if native build@:>@])],,
1332enable_bootstrap=default)
1333
1334# Issue errors and warnings for invalid/strange bootstrap combinations.
bf03b9ff
ILT		 1335if test -r $srcdir/gcc/configure; then
1336 have_compiler=yes
1337else
1338 have_compiler=no
1339fi
ff3ac0f4
ILT		 1340
1341case "$have_compiler:$host:$target:$enable_bootstrap" in
1342 *:*:*:no) ;;
1343
1344 # Default behavior. Enable bootstrap if we have a compiler
1345 # and we are in a native configuration.
1346 yes:$build:$build:default)
1347 enable_bootstrap=yes ;;
1348
1349 *:*:*:default)
1350 enable_bootstrap=no ;;
1351
1352 # We have a compiler and we are in a native configuration, bootstrap is ok
1353 yes:$build:$build:yes)
1354 ;;
1355
1356 # Other configurations, but we have a compiler. Assume the user knows
1357 # what he's doing.
1358 yes:*:*:yes)
1359 AC_MSG_WARN([trying to bootstrap a cross compiler])
1360 ;;
1361
1362 # No compiler: if they passed --enable-bootstrap explicitly, fail
1363 no:*:*:yes)
1364 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1365
1366 # Fail if wrong command line
1367 *)
1368 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1369 ;;
1370esac
1371
46070488
JM		 1372# When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
1373# C++98 compiler can still start the bootstrap.
1374if test "$enable_bootstrap:$GXX" = "yes:yes"; then
8ca528d9 1375 CXX="$CXX -std=gnu++98"
46070488
JM		 1376fi
1377
592c90ff
KG		 1378# Used for setting $lt_cv_objdir
1379_LT_CHECK_OBJDIR
1380
acd26225 1381# Check for GMP, MPFR and MPC
3a5729ea 1382gmplibs="-lmpc -lmpfr -lgmp"
6de9cd9a 1383gmpinc=
e69bf64b 1384have_gmp=no
acd26225
KG		 1385
1386# Specify a location for mpc
1387# check for this first so it ends up on the link line before mpfr.
33e39b66
AS		 1388AC_ARG_WITH(mpc,
1389[AS_HELP_STRING([--with-mpc=PATH],
1390 [specify prefix directory for installed MPC package.
1391 Equivalent to --with-mpc-include=PATH/include
1392 plus --with-mpc-lib=PATH/lib])])
1393AC_ARG_WITH(mpc-include,
1394[AS_HELP_STRING([--with-mpc-include=PATH],
1395 [specify directory for installed MPC include files])])
1396AC_ARG_WITH(mpc-lib,
1397[AS_HELP_STRING([--with-mpc-lib=PATH],
1398 [specify directory for the installed MPC library])])
acd26225
KG		 1399
1400if test "x$with_mpc" != x; then
3a5729ea
KG		 1401 gmplibs="-L$with_mpc/lib $gmplibs"
1402 gmpinc="-I$with_mpc/include $gmpinc"
acd26225
KG		 1403fi
1404if test "x$with_mpc_include" != x; then
3a5729ea 1405 gmpinc="-I$with_mpc_include $gmpinc"
acd26225
KG		 1406fi
1407if test "x$with_mpc_lib" != x; then
3a5729ea 1408 gmplibs="-L$with_mpc_lib $gmplibs"
acd26225
KG		 1409fi
1410if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
592c90ff 1411 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
3a5729ea 1412 gmpinc='-I$$s/mpc/src '"$gmpinc"
acd26225
KG		 1413 # Do not test the mpc version. Assume that it is sufficient, since
1414 # it is in the source tree, and the library has not been built yet
1415 # but it would be included on the link line in the version check below
1416 # hence making the test fail.
3a5729ea 1417 have_gmp=yes
acd26225 1418fi
e69bf64b 1419
bebf829d
PB		 1420# Specify a location for mpfr
1421# check for this first so it ends up on the link line before gmp.
33e39b66
AS		 1422AC_ARG_WITH(mpfr-dir,
1423[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1424[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1425Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1426
1427AC_ARG_WITH(mpfr,
1428[AS_HELP_STRING([--with-mpfr=PATH],
1429 [specify prefix directory for installed MPFR package.
1430 Equivalent to --with-mpfr-include=PATH/include
1431 plus --with-mpfr-lib=PATH/lib])])
1432AC_ARG_WITH(mpfr-include,
1433[AS_HELP_STRING([--with-mpfr-include=PATH],
1434 [specify directory for installed MPFR include files])])
1435AC_ARG_WITH(mpfr-lib,
1436[AS_HELP_STRING([--with-mpfr-lib=PATH],
1437 [specify directory for the installed MPFR library])])
bebf829d
PB		 1438
1439if test "x$with_mpfr" != x; then
1440 gmplibs="-L$with_mpfr/lib $gmplibs"
3a5729ea 1441 gmpinc="-I$with_mpfr/include $gmpinc"
bebf829d 1442fi
8a877c9c 1443if test "x$with_mpfr_include" != x; then
3a5729ea 1444 gmpinc="-I$with_mpfr_include $gmpinc"
8a877c9c
KG		 1445fi
1446if test "x$with_mpfr_lib" != x; then
1447 gmplibs="-L$with_mpfr_lib $gmplibs"
1448fi
e69bf64b 1449if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
8f3675f8
MR		 1450 # MPFR v3.1.0 moved the sources into a src sub-directory.
1451 if ! test -d ${srcdir}/mpfr/src; then
1452 AC_MSG_ERROR([dnl
1453Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1454 fi
00f35794
BE		 1455 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1456 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1457 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
e69bf64b
PB		 1458 # Do not test the mpfr version. Assume that it is sufficient, since
1459 # it is in the source tree, and the library has not been built yet
1460 # but it would be included on the link line in the version check below
1461 # hence making the test fail.
1462 have_gmp=yes
1463fi
bebf829d 1464
6de9cd9a 1465# Specify a location for gmp
33e39b66
AS		 1466AC_ARG_WITH(gmp-dir,
1467[AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1468[AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1469Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1470
1471AC_ARG_WITH(gmp,
1472[AS_HELP_STRING([--with-gmp=PATH],
1473 [specify prefix directory for the installed GMP package.
1474 Equivalent to --with-gmp-include=PATH/include
1475 plus --with-gmp-lib=PATH/lib])])
1476AC_ARG_WITH(gmp-include,
1477[AS_HELP_STRING([--with-gmp-include=PATH],
1478 [specify directory for installed GMP include files])])
1479AC_ARG_WITH(gmp-lib,
1480[AS_HELP_STRING([--with-gmp-lib=PATH],
1481 [specify directory for the installed GMP library])])
6de9cd9a 1482
6de9cd9a 1483
bebf829d
PB		 1484if test "x$with_gmp" != x; then
1485 gmplibs="-L$with_gmp/lib $gmplibs"
1486 gmpinc="-I$with_gmp/include $gmpinc"
6de9cd9a 1487fi
8a877c9c
KG		 1488if test "x$with_gmp_include" != x; then
1489 gmpinc="-I$with_gmp_include $gmpinc"
1490fi
1491if test "x$with_gmp_lib" != x; then
1492 gmplibs="-L$with_gmp_lib $gmplibs"
1493fi
e69bf64b 1494if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
592c90ff 1495 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
e69bf64b 1496 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
9183bdcf 1497 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
592c90ff 1498 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
0ff2d841 1499 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
e69bf64b
PB		 1500 # Do not test the gmp version. Assume that it is sufficient, since
1501 # it is in the source tree, and the library has not been built yet
1502 # but it would be included on the link line in the version check below
1503 # hence making the test fail.
1504 have_gmp=yes
1505fi
6de9cd9a 1506
d943d7c4 1507if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
e69bf64b
PB		 1508 have_gmp=yes
1509 saved_CFLAGS="$CFLAGS"
1510 CFLAGS="$CFLAGS $gmpinc"
362c6d2f
KG		 1511 # Check for the recommended and required versions of GMP.
1512 AC_MSG_CHECKING([for the correct version of gmp.h])
e69bf64b 1513 AC_TRY_COMPILE([#include "gmp.h"],[
362c6d2f
KG		 1514 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1515 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
385c0681 1516 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
e48d66a9 1517 choke me
e69bf64b 1518 #endif
e8fd69bb 1519 ], [AC_TRY_COMPILE([#include <gmp.h>],[
362c6d2f
KG		 1520 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1521 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1522 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1523 choke me
1524 #endif
e8fd69bb 1525 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1526 [AC_MSG_RESULT([no]); have_gmp=no])
e69bf64b 1527
acd26225 1528 # If we have GMP, check the MPFR version.
e69bf64b 1529 if test x"$have_gmp" = xyes; then
362c6d2f
KG		 1530 # Check for the recommended and required versions of MPFR.
1531 AC_MSG_CHECKING([for the correct version of mpfr.h])
acd26225 1532 AC_TRY_COMPILE([#include <gmp.h>
e69bf64b 1533 #include <mpfr.h>],[
f7d6bc01 1534 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
e69bf64b
PB		 1535 choke me
1536 #endif
e8fd69bb 1537 ], [AC_TRY_COMPILE([#include <gmp.h>
acd26225 1538 #include <mpfr.h>],[
362c6d2f 1539 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
acd26225
KG		 1540 choke me
1541 #endif
e8fd69bb 1542 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
acd26225
KG		 1543 [AC_MSG_RESULT([no]); have_gmp=no])
1544 fi
1545
1546 # Check for the MPC header version.
3a5729ea 1547 if test x"$have_gmp" = xyes ; then
362c6d2f 1548 # Check for the recommended and required versions of MPC.
acd26225
KG		 1549 AC_MSG_CHECKING([for the correct version of mpc.h])
1550 AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f 1551 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
acd26225
KG		 1552 choke me
1553 #endif
e8fd69bb 1554 ], [AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f
KG		 1555 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1556 choke me
1557 #endif
e8fd69bb 1558 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1559 [AC_MSG_RESULT([no]); have_gmp=no])
acd26225
KG		 1560 fi
1561
1562 # Now check the MPFR library.
1563 if test x"$have_gmp" = xyes; then
1564 saved_LIBS="$LIBS"
1565 LIBS="$LIBS $gmplibs"
3a5729ea
KG		 1566 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1567 AC_TRY_LINK([#include <mpc.h>],[
54e433bc
MK		 1568 mpfr_t n;
1569 mpfr_t x;
3a5729ea 1570 mpc_t c;
e69bf64b 1571 int t;
54e433bc
MK		 1572 mpfr_init (n);
1573 mpfr_init (x);
e69bf64b
PB		 1574 mpfr_atan2 (n, n, x, GMP_RNDN);
1575 mpfr_erfc (n, x, GMP_RNDN);
1576 mpfr_subnormalize (x, t, GMP_RNDN);
3a5729ea
KG		 1577 mpfr_clear(n);
1578 mpfr_clear(x);
1579 mpc_init2 (c, 53);
1580 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1581 mpc_cosh (c, c, MPC_RNDNN);
1582 mpc_pow (c, c, c, MPC_RNDNN);
1583 mpc_acosh (c, c, MPC_RNDNN);
1584 mpc_clear (c);
acd26225
KG		 1585 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1586 LIBS="$saved_LIBS"
e69bf64b 1587 fi
acd26225 1588
e69bf64b 1589 CFLAGS="$saved_CFLAGS"
6de9cd9a 1590
362c6d2f
KG		 1591# The library versions listed in the error message below should match
1592# the HARD-minimums enforced above.
e69bf64b 1593 if test x$have_gmp != xyes; then
f7d6bc01 1594 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
3a5729ea
KG		 1595Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1596their locations. Source code for these libraries can be found at
1597their respective hosting sites as well as at
1598ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1599http://gcc.gnu.org/install/prerequisites.html for additional info. If
1600you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1601make sure that you have installed both the libraries and the header
1602files. They may be located in separate packages.])
e69bf64b 1603 fi
70ec446f
KG		 1604fi
1605
acd26225 1606# Flags needed for both GMP, MPFR and/or MPC.
6de9cd9a
DN		 1607AC_SUBST(gmplibs)
1608AC_SUBST(gmpinc)
9e3eba15 1609AC_SUBST(extra_mpfr_configure_flags)
acd26225
KG		 1610AC_SUBST(extra_mpc_gmp_configure_flags)
1611AC_SUBST(extra_mpc_mpfr_configure_flags)
0ff2d841 1612AC_SUBST(extra_isl_gmp_configure_flags)
6de9cd9a 1613
00020c16
ILT		 1614# Libraries to use for stage1 or when not bootstrapping.
1615AC_ARG_WITH(stage1-libs,
33e39b66 1616[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
00020c16
ILT		 1617[if test "$withval" = "no" -o "$withval" = "yes"; then
1618 stage1_libs=
1619 else
1620 stage1_libs=$withval
1621 fi],
5dc85f7e 1622[stage1_libs=])
00020c16
ILT		 1623AC_SUBST(stage1_libs)
1624
0b21f5d3
EB		 1625# Linker flags to use for stage1 or when not bootstrapping.
1626AC_ARG_WITH(stage1-ldflags,
1627[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1628[if test "$withval" = "no" -o "$withval" = "yes"; then
1629 stage1_ldflags=
1630 else
1631 stage1_ldflags=$withval
1632 fi],
1633[stage1_ldflags=
1634 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1635 # if supported. But if the user explicitly specified the libraries to use,
1636 # trust that they are doing what they want.
1637 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1638 stage1_ldflags="-static-libstdc++ -static-libgcc"
1639 fi])
1640AC_SUBST(stage1_ldflags)
1641
5dc85f7e 1642# Libraries to use for stage2 and later builds.
00020c16 1643AC_ARG_WITH(boot-libs,
33e39b66 1644[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
00020c16
ILT		 1645[if test "$withval" = "no" -o "$withval" = "yes"; then
1646 poststage1_libs=
1647 else
e90e6bd7 1648 poststage1_libs=$withval
00020c16 1649 fi],
5dc85f7e 1650[poststage1_libs=])
00020c16
ILT		 1651AC_SUBST(poststage1_libs)
1652
ed2eaa9f
ILT		 1653# Linker flags to use for stage2 and later builds.
1654AC_ARG_WITH(boot-ldflags,
33e39b66
AS		 1655[AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1656 [linker flags for stage2 and later])],
ed2eaa9f
ILT		 1657[if test "$withval" = "no" -o "$withval" = "yes"; then
1658 poststage1_ldflags=
1659 else
1660 poststage1_ldflags=$withval
1661 fi],
1662[poststage1_ldflags=
bec93d73
ILT		 1663 # In stages 2 and 3, default to linking libstdc++ and libgcc
1664 # statically. But if the user explicitly specified the libraries to
1665 # use, trust that they are doing what they want.
1666 if test "$poststage1_libs" = ""; then
ed2eaa9f
ILT		 1667 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1668 fi])
1669AC_SUBST(poststage1_ldflags)
1670
e357a5e0 1671# GCC GRAPHITE dependency isl.
4a9bb2aa 1672# Basic setup is inlined here, actual checks are in config/isl.m4
625afa23 1673
625afa23
RG		 1674AC_ARG_WITH(isl,
1675 [AS_HELP_STRING(
1676 [--with-isl=PATH],
e357a5e0 1677 [Specify prefix directory for the installed isl package.
625afa23
RG		 1678 Equivalent to --with-isl-include=PATH/include
1679 plus --with-isl-lib=PATH/lib])])
1680
eae1a5d4 1681# Treat --without-isl as a request to disable
625afa23 1682# GRAPHITE support and skip all following checks.
eae1a5d4 1683if test "x$with_isl" != "xno"; then
e357a5e0 1684 # Check for isl
625afa23
RG		 1685 dnl Provide configure switches and initialize islinc & isllibs
1686 dnl with user input.
1687 ISL_INIT_FLAGS
e357a5e0 1688 dnl The versions of isl that work for Graphite
e0c0c325 1689 ISL_CHECK_VERSION()
e357a5e0 1690 dnl Only execute fail-action, if isl has been requested.
33ad93b9 1691 ISL_IF_FAILED([
e357a5e0 1692 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
f8bf9252 1693fi
f8bf9252 1694
e357a5e0 1695# If the isl check failed, disable builds of in-tree variant of isl
625afa23 1696if test "x$with_isl" = xno ||
625afa23 1697 test "x$gcc_cv_isl" = xno; then
4a9bb2aa 1698 noconfigdirs="$noconfigdirs isl"
625afa23 1699 islinc=
eae1a5d4
RG		 1700fi
1701
1702AC_SUBST(isllibs)
625afa23 1703AC_SUBST(islinc)
625afa23 1704
d7f09764
DN		 1705# Check for LTO support.
1706AC_ARG_ENABLE(lto,
33e39b66 1707[AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
d7f09764
DN		 1708enable_lto=$enableval,
1709enable_lto=yes; default_enable_lto=yes)
1710
48215350
DK		 1711ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1712 build_lto_plugin=yes
1713],[if test x"$default_enable_lto" = x"yes" ; then
bb79486c 1714 case $target in
9e530bcd 1715 *-apple-darwin9* | *-cygwin* | *-mingw* | *djgpp*) ;;
48215350 1716 # On other non-ELF platforms, LTO has yet to be validated.
bb79486c
JH		 1717 *) enable_lto=no ;;
1718 esac
3bec79c5 1719 else
db50fe7d
IS		 1720 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1721 # It would also be nice to check the binutils support, but we don't
3bec79c5
DK		 1722 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1723 # warn during gcc/ subconfigure; unless you're bootstrapping with
1724 # -flto it won't be needed until after installation anyway.
1725 case $target in
9e530bcd 1726 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
3bec79c5
DK		 1727 *) if test x"$enable_lto" = x"yes"; then
1728 AC_MSG_ERROR([LTO support is not enabled for this target.])
1729 fi
1730 ;;
1731 esac
1732 fi
1cd0b716 1733 # Among non-ELF, only Windows platforms support the lto-plugin so far.
48215350 1734 # Build it unless LTO was explicitly disabled.
1cd0b716 1735 case $target in
48215350 1736 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1cd0b716
DK		 1737 *) ;;
1738 esac
48215350 1739])
d7f09764 1740
45b3824d
TS		 1741AC_ARG_ENABLE(linker-plugin-configure-flags,
1742 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1743 [additional flags for configuring linker plugins @<:@none@:>@])],
1744 extra_linker_plugin_configure_flags=$enableval,
1745 extra_linker_plugin_configure_flags=)
1746AC_SUBST(extra_linker_plugin_configure_flags)
1747AC_ARG_ENABLE(linker-plugin-flags,
1748 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1749 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1750 extra_linker_plugin_flags=$enableval,
1751 extra_linker_plugin_flags=)
1752AC_SUBST(extra_linker_plugin_flags)
1753
f8bf9252 1754
0823efed 1755# By default, C and C++ are the only stage 1 languages.
e1888513 1756stage1_languages=,c,
2805b53a 1757
00020c16 1758# Target libraries that we bootstrap.
ad1e5170 1759bootstrap_target_libs=,target-libgcc,
00020c16 1760
e4c9c075
PB		 1761# Figure out what language subdirectories are present.
1762# Look if the user specified --enable-languages="..."; if not, use
1763# the environment variable $LANGUAGES if defined. $LANGUAGES might
1764# go away some day.
1765# NB: embedded tabs in this IF block -- do not untabify
1766if test -d ${srcdir}/gcc; then
1767 if test x"${enable_languages+set}" != xset; then
1768 if test x"${LANGUAGES+set}" = xset; then
1769 enable_languages="${LANGUAGES}"
6b1786aa 1770 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
e4c9c075
PB		 1771 else
1772 enable_languages=all
1773 fi
1774 else
1775 if test x"${enable_languages}" = x ||
1776 test x"${enable_languages}" = xyes;
1777 then
6b1786aa 1778 echo configure.ac: --enable-languages needs at least one language argument 1>&2
e4c9c075
PB		 1779 exit 1
1780 fi
1781 fi
1782 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1783
7f26dfa3
FXC		 1784 # 'f95' is the old name for the 'fortran' language. We issue a warning
1785 # and make the substitution.
1786 case ,${enable_languages}, in
1787 *,f95,*)
6b1786aa 1788 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
7f26dfa3
FXC		 1789 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1790 ;;
1791 esac
1792
0823efed
DN		 1793 # If bootstrapping, C++ must be enabled.
1794 case ",$enable_languages,:$enable_bootstrap" in
1795 *,c++,*:*) ;;
1796 *:yes)
ff3ac0f4
ILT		 1797 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1798 enable_languages="${enable_languages},c++"
1799 else
0823efed 1800 AC_MSG_ERROR([bootstrapping requires c++ sources])
ff3ac0f4
ILT		 1801 fi
1802 ;;
1803 esac
1804
e4c9c075
PB		 1805 # First scan to see if an enabled language requires some other language.
1806 # We assume that a given config-lang.in will list all the language
1807 # front ends it requires, even if some are required indirectly.
1808 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1809 case ${lang_frag} in
1810 ..) ;;
1811 # The odd quoting in the next line works around
1812 # an apparent bug in bash 1.12 on linux.
1813 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1814 *)
69ecd18f
ILT		 1815 # From the config-lang.in, get $language, $lang_requires, and
1816 # $lang_requires_boot_languages.
e4c9c075
PB		 1817 language=
1818 lang_requires=
69ecd18f 1819 lang_requires_boot_languages=
e4c9c075 1820 . ${lang_frag}
69ecd18f 1821 for other in ${lang_requires} ${lang_requires_boot_languages}; do
e4c9c075
PB		 1822 case ,${enable_languages}, in
1823 *,$other,*) ;;
1824 *,all,*) ;;
1825 *,$language,*)
1826 echo " \`$other' language required by \`$language'; enabling" 1>&2
1827 enable_languages="${enable_languages},${other}"
1828 ;;
1829 esac
1830 done
69ecd18f
ILT		 1831 for other in ${lang_requires_boot_languages} ; do
1832 if test "$other" != "c"; then
1833 case ,${enable_stage1_languages}, in
1834 *,$other,*) ;;
1835 *,all,*) ;;
1836 *)
1837 case ,${enable_languages}, in
1838 *,$language,*)
1839 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1840 enable_stage1_languages="$enable_stage1_languages,${other}"
1841 ;;
1842 esac
1843 ;;
1844 esac
1845 fi
1846 done
e4c9c075
PB		 1847 ;;
1848 esac
1849 done
1850
e1888513 1851 new_enable_languages=,c,
d7f09764
DN		 1852
1853 # If LTO is enabled, add the LTO front end.
d7f09764 1854 if test "$enable_lto" = "yes" ; then
e4c5bd48
RW		 1855 case ,${enable_languages}, in
1856 *,lto,*) ;;
1857 *) enable_languages="${enable_languages},lto" ;;
1858 esac
1cd0b716 1859 if test "${build_lto_plugin}" = "yes" ; then
d7f09764 1860 configdirs="$configdirs lto-plugin"
d7f09764
DN		 1861 fi
1862 fi
d7f09764 1863
426c1eb0
TS		 1864 # If we're building an offloading compiler, add the LTO front end.
1865 if test x"$enable_as_accelerator_for" != x ; then
1866 case ,${enable_languages}, in
1867 *,lto,*) ;;
1868 *) enable_languages="${enable_languages},lto" ;;
1869 esac
1870 fi
1871
e4c9c075 1872 missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
e1888513 1873 potential_languages=,c,
e4c9c075 1874
4da3b0f8
ILT		 1875 enabled_target_libs=
1876 disabled_target_libs=
1877
e4c9c075
PB		 1878 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1879 case ${lang_frag} in
1880 ..) ;;
1881 # The odd quoting in the next line works around
1882 # an apparent bug in bash 1.12 on linux.
1883 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1884 *)
1885 # From the config-lang.in, get $language, $target_libs,
2805b53a 1886 # $lang_dirs, $boot_language, and $build_by_default
e4c9c075
PB		 1887 language=
1888 target_libs=
1889 lang_dirs=
1546bb64 1890 subdir_requires=
e1888513
PB		 1891 boot_language=no
1892 build_by_default=yes
e4c9c075 1893 . ${lang_frag}
e1888513
PB		 1894 if test x${language} = x; then
1895 echo "${lang_frag} doesn't set \$language." 1>&2
1896 exit 1
1897 fi
1898
78767fd9 1899 if test "$language" = "c++"; then
0823efed 1900 boot_language=yes
00020c16
ILT		 1901 fi
1902
178f875a 1903 add_this_lang=no
e1888513
PB		 1904 case ,${enable_languages}, in
1905 *,${language},*)
d4a10d0a
SB		 1906 # Language was explicitly selected; include it
1907 # unless it is C, which is enabled by default.
1908 if test "$language" != "c"; then
1909 add_this_lang=yes
1910 fi
e4c9c075 1911 ;;
e1888513
PB		 1912 *,all,*)
1913 # 'all' was selected, select it if it is a default language
178f875a
JM		 1914 if test "$language" != "c"; then
1915 add_this_lang=${build_by_default}
1916 fi
e4c9c075
PB		 1917 ;;
1918 esac
6de9cd9a 1919
1546bb64 1920 # Disable languages that need other directories if these aren't available.
95695ad3 1921 for i in $subdir_requires; do
b6348cb3 1922 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1546bb64
PB		 1923 case ,${enable_languages}, in
1924 *,${language},*)
1925 # Specifically requested language; tell them.
1926 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1927 ;;
1928 *)
1929 # Silently disable.
e1888513 1930 add_this_lang=unsupported
1546bb64
PB		 1931 ;;
1932 esac
1933 done
1934
e1888513
PB		 1935 # Disable Ada if no preexisting GNAT is available.
1936 case ,${enable_languages},:${language}:${have_gnat} in
1937 *,${language},*:ada:no)
1938 # Specifically requested language; tell them.
1939 AC_MSG_ERROR([GNAT is required to build $language])
1940 ;;
1941 *:ada:no)
1942 # Silently disable.
1943 add_this_lang=unsupported
1944 ;;
1945 esac
1946
4fab7234
HPN		 1947 # Disable a language that is unsupported by the target.
1948 case " $unsupported_languages " in
1949 *" $language "*)
e1888513 1950 add_this_lang=unsupported
4fab7234
HPN		 1951 ;;
1952 esac
1953
6de9cd9a 1954 case $add_this_lang in
e1888513 1955 unsupported)
e4c9c075 1956 # Remove language-dependent dirs.
4da3b0f8
ILT		 1957 disabled_target_libs="$disabled_target_libs $target_libs"
1958 noconfigdirs="$noconfigdirs $lang_dirs"
2805b53a 1959 ;;
e1888513
PB		 1960 no)
1961 # Remove language-dependent dirs; still show language as supported.
4da3b0f8
ILT		 1962 disabled_target_libs="$disabled_target_libs $target_libs"
1963 noconfigdirs="$noconfigdirs $lang_dirs"
e1888513
PB		 1964 potential_languages="${potential_languages}${language},"
1965 ;;
1966 yes)
1967 new_enable_languages="${new_enable_languages}${language},"
1968 potential_languages="${potential_languages}${language},"
2805b53a 1969 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
4da3b0f8 1970 enabled_target_libs="$enabled_target_libs $target_libs"
ab9dcd0c
RW		 1971 case "${boot_language}:,$enable_stage1_languages," in
1972 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
340de83f 1973 # Add to (comma-separated) list of stage 1 languages.
ab9dcd0c
RW		 1974 case ",$stage1_languages," in
1975 *,$language,* | ,yes, | ,all,) ;;
1976 *) stage1_languages="${stage1_languages}${language}," ;;
1977 esac
00020c16
ILT		 1978 # We need to bootstrap any supporting libraries.
1979 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2805b53a
NN		 1980 ;;
1981 esac
1982 ;;
e4c9c075
PB		 1983 esac
1984 ;;
1985 esac
1986 done
1987
4da3b0f8
ILT		 1988 # Add target libraries which are only needed for disabled languages
1989 # to noconfigdirs.
1990 if test -n "$disabled_target_libs"; then
1991 for dir in $disabled_target_libs; do
1992 case " $enabled_target_libs " in
1993 *" ${dir} "*) ;;
1994 *) noconfigdirs="$noconfigdirs $dir" ;;
1995 esac
1996 done
1997 fi
1998
e1888513 1999 AC_ARG_ENABLE(stage1-languages,
33e39b66
AS		 2000 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2001 [choose additional languages to build during
2002 stage1. Mostly useful for compiler development])],
e1888513
PB		 2003 [case ,${enable_stage1_languages}, in
2004 ,no,|,,)
2005 # Set it to something that will have no effect in the loop below
2006 enable_stage1_languages=c ;;
2007 ,yes,)
2008 enable_stage1_languages=`echo $new_enable_languages | \
2009 sed -e "s/^,//" -e "s/,$//" ` ;;
2010 *,all,*)
2011 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2012 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2013 esac
2014
2015 # Add "good" languages from enable_stage1_languages to stage1_languages,
2016 # while "bad" languages go in missing_languages. Leave no duplicates.
2017 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2018 case $potential_languages in
2019 *,$i,*)
2020 case $stage1_languages in
2021 *,$i,*) ;;
2022 *) stage1_languages="$stage1_languages$i," ;;
2023 esac ;;
2024 *)
2025 case $missing_languages in
2026 *,$i,*) ;;
2027 *) missing_languages="$missing_languages$i," ;;
2028 esac ;;
2029 esac
2030 done])
2031
2032 # Remove leading/trailing commas that were added for simplicity
2033 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
79b4b7d2 2034 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
e1888513
PB		 2035 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2036 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2037
e4c9c075
PB		 2038 if test "x$missing_languages" != x; then
2039 AC_MSG_ERROR([
0cf085e4 2040The following requested languages could not be built: ${missing_languages}
e1888513 2041Supported languages are: ${potential_languages}])
e4c9c075 2042 fi
e4c9c075
PB		 2043 if test "x$new_enable_languages" != "x$enable_languages"; then
2044 echo The following languages will be built: ${new_enable_languages}
e1888513 2045 enable_languages="$new_enable_languages"
e4c9c075 2046 fi
e1888513
PB		 2047
2048 AC_SUBST(stage1_languages)
b2eaac4a 2049 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
e4c9c075
PB		 2050fi
2051
27079765
AH		 2052# Handle --disable-<component> generically.
2053for dir in $configdirs $build_configdirs $target_configdirs ; do
2054 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
ac9e6043
RW		 2055 varname=`echo $dirname | sed -e s/+/_/g`
2056 if eval test x\${enable_${varname}} "=" xno ; then
27079765
AH		 2057 noconfigdirs="$noconfigdirs $dir"
2058 fi
2059done
2060
43c40f3e
RO		 2061# Check for Boehm's garbage collector
2062AC_ARG_ENABLE(objc-gc,
2063[AS_HELP_STRING([--enable-objc-gc],
2064 [enable use of Boehm's garbage collector with the
2065 GNU Objective-C runtime])],
2066[case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
2067 *,objc,*:*:yes:*target-boehm-gc*)
2068 AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
2069 ;;
2070esac])
2071
2072# Make sure we only build Boehm's garbage collector if required.
2073case ,${enable_languages},:${enable_objc_gc} in
2074 *,objc,*:yes)
2075 # Keep target-boehm-gc if requested for Objective-C.
2076 ;;
2077 *)
2078 # Otherwise remove target-boehm-gc.
2079 noconfigdirs="$noconfigdirs target-boehm-gc"
2080 ;;
2081esac
2082
5f520819 2083# Disable libcilkrts, libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
99776ebd 2084case ,${enable_languages}, in
1007a55c
JW		 2085 *,c++,*)
2086 # Disable libcilkrts, libitm, libsanitizer if we're not building libstdc++
2087 case "${noconfigdirs}" in
2088 *target-libstdc++-v3*)
2089 noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer"
2090 ;;
2091 *) ;;
2092 esac
2093 ;;
99776ebd 2094 *)
5f520819 2095 noconfigdirs="$noconfigdirs target-libcilkrts target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
99776ebd
RH		 2096 ;;
2097esac
7cd0cf9c 2098
9d069a4f
PB		 2099# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2100# $build_configdirs and $target_configdirs.
e4c9c075
PB		 2101# If we have the source for $noconfigdirs entries, add them to $notsupp.
2102
2103notsupp=""
2104for dir in . $skipdirs $noconfigdirs ; do
9d069a4f 2105 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
e4c9c075
PB		 2106 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2107 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2108 if test -r $srcdir/$dirname/configure ; then
2109 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2110 true
2111 else
2112 notsupp="$notsupp $dir"
2113 fi
2114 fi
2115 fi
9d069a4f
PB		 2116 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2117 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2118 if test -r $srcdir/$dirname/configure ; then
2119 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2120 true
2121 else
2122 notsupp="$notsupp $dir"
2123 fi
2124 fi
2125 fi
e4c9c075
PB		 2126 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2127 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2128 if test -r $srcdir/$dirname/configure ; then
2129 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2130 true
2131 else
2132 notsupp="$notsupp $dir"
2133 fi
2134 fi
2135 fi
2136done
2137
e4c9c075
PB		 2138# Quietly strip out all directories which aren't configurable in this tree.
2139# This relies on all configurable subdirectories being autoconfiscated, which
2140# is now the case.
23f6b2f9
PB		 2141build_configdirs_all="$build_configdirs"
2142build_configdirs=
2143for i in ${build_configdirs_all} ; do
2144 j=`echo $i | sed -e s/build-//g`
2145 if test -f ${srcdir}/$j/configure ; then
2146 build_configdirs="${build_configdirs} $i"
2147 fi
2148done
2149
e4c9c075
PB		 2150configdirs_all="$configdirs"
2151configdirs=
2152for i in ${configdirs_all} ; do
2153 if test -f ${srcdir}/$i/configure ; then
2154 configdirs="${configdirs} $i"
2155 fi
2156done
23f6b2f9 2157
e4c9c075
PB		 2158target_configdirs_all="$target_configdirs"
2159target_configdirs=
2160for i in ${target_configdirs_all} ; do
2161 j=`echo $i | sed -e s/target-//g`
2162 if test -f ${srcdir}/$j/configure ; then
2163 target_configdirs="${target_configdirs} $i"
2164 fi
2165done
2166
45b3824d
TS		 2167# libiberty-linker-plugin is special: it doesn't have its own source directory,
2168# so we have to add it after the preceding checks.
2169if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2170then
2171 case " $configdirs " in
2172 *" libiberty "*)
2173 # If we can build libiberty, we can also build libiberty-linker-plugin.
2174 configdirs="$configdirs libiberty-linker-plugin"
2175 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2176 --with-libiberty=../libiberty-linker-plugin";;
2177 *)
2178 AC_MSG_ERROR([libiberty missing]);;
2179 esac
2180fi
2181
fca38047
TS		 2182# Sometimes we have special requirements for the host libiberty.
2183extra_host_libiberty_configure_flags=
1c01ebf6 2184extra_host_zlib_configure_flags=
fca38047
TS		 2185case " $configdirs " in
2186 *" lto-plugin "* | *" libcc1 "*)
2187 # When these are to be built as shared libraries, the same applies to
2188 # libiberty.
2189 extra_host_libiberty_configure_flags=--enable-shared
2190 ;;
1c01ebf6
L		 2191 *" bfd "*)
2192 # When bfd is to be built as a shared library, the same applies to
2193 # zlib.
2194 if test "$enable_shared" = "yes"; then
2195 extra_host_zlib_configure_flags=--enable-host-shared
2196 fi
2197 ;;
fca38047
TS		 2198esac
2199AC_SUBST(extra_host_libiberty_configure_flags)
1c01ebf6 2200AC_SUBST(extra_host_zlib_configure_flags)
fca38047 2201
e4c9c075
PB		 2202# Produce a warning message for the subdirs we can't configure.
2203# This isn't especially interesting in the Cygnus tree, but in the individual
2204# FSF releases, it's important to let people know when their machine isn't
2205# supported by the one or two programs in a package.
2206
2207if test -n "${notsupp}" && test -z "${norecursion}" ; then
2208 # If $appdirs is non-empty, at least one of those directories must still
2209 # be configured, or we error out. (E.g., if the gas release supports a
2210 # specified target in some subdirs but not the gas subdir, we shouldn't
2211 # pretend that all is well.)
2212 if test -n "$appdirs" ; then
2213 for dir in $appdirs ; do
2214 if test -r $dir/Makefile.in ; then
2215 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2216 appdirs=""
2217 break
2218 fi
23f6b2f9 2219 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
e4c9c075
PB		 2220 appdirs=""
2221 break
2222 fi
2223 fi
2224 done
2225 if test -n "$appdirs" ; then
2226 echo "*** This configuration is not supported by this package." 1>&2
2227 exit 1
2228 fi
2229 fi
2230 # Okay, some application will build, or we don't care to check. Still
2231 # notify of subdirs not getting built.
2232 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2233 echo " ${notsupp}" 1>&2
2234 echo " (Any other directories should still work fine.)" 1>&2
2235fi
2236
2237case "$host" in
2238 *msdosdjgpp*)
2239 enable_gdbtk=no ;;
2240esac
2241
c3a86da9
DJ		 2242# To find our prefix, in gcc_cv_tool_prefix.
2243ACX_TOOL_DIRS
2244
e4c9c075
PB		 2245copy_dirs=
2246
526635cb 2247AC_ARG_WITH([build-sysroot],
33e39b66
AS		 2248 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2249 [use sysroot as the system root during the build])],
526635cb
MM		 2250 [if test x"$withval" != x ; then
2251 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2252 fi],
2253 [SYSROOT_CFLAGS_FOR_TARGET=])
2254AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2255
c8aea42c 2256AC_ARG_WITH([debug-prefix-map],
33e39b66
AS		 2257 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2258 [map A to B, C to D ... in debug information])],
c8aea42c
PB		 2259 [if test x"$withval" != x; then
2260 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2261 for debug_map in $withval; do
2262 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2263 done
2264 fi],
2265 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2266AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2267
1c8bd6a3
PB		 2268# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2269# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2270# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2271# We want to ensure that TARGET libraries (which we know are built with
2272# gcc) are built with "-O2 -g", so include those options when setting
2273# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2274if test "x$CFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2275 if test "x${is_cross_compiler}" = xyes; then
2276 CFLAGS_FOR_TARGET="-g -O2"
2277 else
2278 CFLAGS_FOR_TARGET=$CFLAGS
2279 case " $CFLAGS " in
2280 *" -O2 "*) ;;
2281 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2282 esac
2283 case " $CFLAGS " in
2284 *" -g "* | *" -g3 "*) ;;
2285 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2286 esac
2287 fi
1c8bd6a3
PB		 2288fi
2289AC_SUBST(CFLAGS_FOR_TARGET)
2290
2291if test "x$CXXFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2292 if test "x${is_cross_compiler}" = xyes; then
2293 CXXFLAGS_FOR_TARGET="-g -O2"
2294 else
2295 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2296 case " $CXXFLAGS " in
2297 *" -O2 "*) ;;
2298 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2299 esac
2300 case " $CXXFLAGS " in
2301 *" -g "* | *" -g3 "*) ;;
2302 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2303 esac
2304 fi
1c8bd6a3
PB		 2305fi
2306AC_SUBST(CXXFLAGS_FOR_TARGET)
2307
6f57bdf6
DK		 2308AC_SUBST(LDFLAGS_FOR_TARGET)
2309
e4c9c075
PB		 2310# Handle --with-headers=XXX. If the value is not "yes", the contents of
2311# the named directory are copied to $(tooldir)/sys-include.
2312if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2313 if test x${is_cross_compiler} = xno ; then
2314 echo 1>&2 '***' --with-headers is only supported when cross compiling
2315 exit 1
2316 fi
2317 if test x"${with_headers}" != xyes ; then
c3a86da9 2318 x=${gcc_cv_tool_prefix}
1c710c3c 2319 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
e4c9c075
PB		 2320 fi
2321fi
2322
2323# Handle --with-libs=XXX. If the value is not "yes", the contents of
2324# the name directories are copied to $(tooldir)/lib. Multiple directories
2325# are permitted.
2326if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2327 if test x${is_cross_compiler} = xno ; then
2328 echo 1>&2 '***' --with-libs is only supported when cross compiling
2329 exit 1
2330 fi
2331 if test x"${with_libs}" != xyes ; then
2332 # Copy the libraries in reverse order, so that files in the first named
2333 # library override files in subsequent libraries.
c3a86da9 2334 x=${gcc_cv_tool_prefix}
e4c9c075 2335 for l in ${with_libs}; do
1c710c3c 2336 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
e4c9c075
PB		 2337 done
2338 fi
2339fi
2340
d7f09764 2341# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
e8b05380
PB		 2342#
2343# This is done by determining whether or not the appropriate directory
2344# is available, and by checking whether or not specific configurations
2345# have requested that this magic not happen.
2346#
2347# The command line options always override the explicit settings in
6b1786aa 2348# configure.ac, and the settings in configure.ac override this magic.
e8b05380
PB		 2349#
2350# If the default for a toolchain is to use GNU as and ld, and you don't
2351# want to do that, then you should use the --without-gnu-as and
d7f09764
DN		 2352# --without-gnu-ld options for the configure script. Similarly, if
2353# the default is to use the included zlib and you don't want to do that,
2354# you should use the --with-system-zlib option for the configure script.
e8b05380
PB		 2355
2356if test x${use_gnu_as} = x &&
2357 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2358 with_gnu_as=yes
2359 extra_host_args="$extra_host_args --with-gnu-as"
2360fi
2361
2362if test x${use_gnu_ld} = x &&
5afab7ad 2363 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
e8b05380
PB		 2364 with_gnu_ld=yes
2365 extra_host_args="$extra_host_args --with-gnu-ld"
2366fi
2367
d7f09764
DN		 2368if test x${use_included_zlib} = x &&
2369 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2370 :
2371else
2372 with_system_zlib=yes
2373 extra_host_args="$extra_host_args --with-system-zlib"
2374fi
2375
e8b05380
PB		 2376# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2377# can detect this case.
2378
2379if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2380 with_newlib=yes
2381 extra_host_args="$extra_host_args --with-newlib"
2382fi
2383
e4c9c075
PB		 2384# Handle ${copy_dirs}
2385set fnord ${copy_dirs}
2386shift
2387while test $# != 0 ; do
2388 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2389 :
2390 else
2391 echo Copying $1 to $2
2392
2393 # Use the install script to create the directory and all required
2394 # parent directories.
2395 if test -d $2 ; then
2396 :
2397 else
2398 echo >config.temp
2399 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2400 fi
2401
2402 # Copy the directory, assuming we have tar.
2403 # FIXME: Should we use B in the second tar? Not all systems support it.
2404 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2405
2406 # It is the responsibility of the user to correctly adjust all
2407 # symlinks. If somebody can figure out how to handle them correctly
2408 # here, feel free to add the code.
2409
2410 echo $1 > $2/COPIED
2411 fi
2412 shift; shift
2413done
2414
e8b05380
PB		 2415# Determine a target-dependent exec_prefix that the installed
2416# gcc will search in. Keep this list sorted by triplet, with
2417# the *-*-osname triplets last.
2418md_exec_prefix=
2419case "${target}" in
30b74385 2420 i[[34567]]86-pc-msdosdjgpp*)
e8b05380
PB		 2421 md_exec_prefix=/dev/env/DJDIR/bin
2422 ;;
e8b05380 2423 *-*-hpux* | \
e8b05380 2424 *-*-nto-qnx* | \
6de66370 2425 *-*-solaris2*)
e8b05380
PB		 2426 md_exec_prefix=/usr/ccs/bin
2427 ;;
2428esac
2429
4977bab6
ZW		 2430extra_arflags_for_target=
2431extra_nmflags_for_target=
2a726918 2432extra_ranlibflags_for_target=
671aa708 2433target_makefile_frag=/dev/null
55380b08 2434case "${target}" in
58e24147
AM		 2435 spu-*-*)
2436 target_makefile_frag="config/mt-spu"
2437 ;;
74ae587e 2438 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
4bf6c438
RS		 2439 target_makefile_frag="config/mt-sde"
2440 ;;
1ec3b87b
RS		 2441 mipsisa*-*-elfoabi*)
2442 target_makefile_frag="config/mt-mips-elfoabi"
2443 ;;
08d0963a
RS		 2444 mips*-*-*linux* | mips*-*-gnu*)
2445 target_makefile_frag="config/mt-mips-gnu"
2446 ;;
707f1839
SL		 2447 nios2-*-elf*)
2448 target_makefile_frag="config/mt-nios2-elf"
2449 ;;
416ac4d4 2450 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
98a5bb3b 2451 target_makefile_frag="config/mt-gnu"
55380b08 2452 ;;
671aa708 2453 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
4977bab6
ZW		 2454 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2455 # commands to handle both 32-bit and 64-bit objects. These flags are
2456 # harmless if we're using GNU nm or ar.
2457 extra_arflags_for_target=" -X32_64"
2458 extra_nmflags_for_target=" -B -X32_64"
55380b08 2459 ;;
c3b7d169
NN		 2460esac
2461
671aa708 2462alphaieee_frag=/dev/null
c3b7d169
NN		 2463case $target in
2464 alpha*-*-*)
2465 # This just makes sure to use the -mieee option to build target libs.
2466 # This should probably be set individually by each library.
2467 alphaieee_frag="config/mt-alphaieee"
55380b08
NN		 2468 ;;
2469esac
701afd4d 2470
55380b08
NN		 2471# If --enable-target-optspace always use -Os instead of -O2 to build
2472# the target libraries, similarly if it is not specified, use -Os
2473# on selected platforms.
671aa708 2474ospace_frag=/dev/null
55380b08
NN		 2475case "${enable_target_optspace}:${target}" in
2476 yes:*)
c3b7d169 2477 ospace_frag="config/mt-ospace"
55380b08
NN		 2478 ;;
2479 :d30v-*)
c3b7d169 2480 ospace_frag="config/mt-d30v"
55380b08 2481 ;;
d9063947 2482 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
c3b7d169 2483 ospace_frag="config/mt-ospace"
55380b08
NN		 2484 ;;
2485 no:* | :*)
2486 ;;
2487 *)
2488 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2489 ;;
2490esac
6599da04 2491
671aa708
NN		 2492# Some systems (e.g., one of the i386-aix systems the gas testers are
2493# using) don't handle "\$" correctly, so don't use it here.
1c710c3c 2494tooldir='${exec_prefix}'/${target_noncanonical}
671aa708
NN		 2495build_tooldir=${tooldir}
2496
671aa708
NN		 2497# Create a .gdbinit file which runs the one in srcdir
2498# and tells GDB to look there for source files.
2499
2500if test -r ${srcdir}/.gdbinit ; then
2501 case ${srcdir} in
2502 .) ;;
2503 *) cat > ./.gdbinit <<EOF
2504# ${NO_EDIT}
2505dir ${srcdir}
2506dir .
2507source ${srcdir}/.gdbinit
2508EOF
2509 ;;
2510 esac
2511fi
2512
6599da04
JM		 2513# Make sure that the compiler is able to generate an executable. If it
2514# can't, we are probably in trouble. We don't care whether we can run the
2515# executable--we might be using a cross compiler--we only care whether it
2516# can be created. At this point the main configure script has set CC.
aeaa0f2f 2517we_are_ok=no
6599da04
JM		 2518echo "int main () { return 0; }" > conftest.c
2519${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
aeaa0f2f
NN		 2520if test $? = 0 ; then
2521 if test -s conftest || test -s conftest.exe ; then
2522 we_are_ok=yes
2523 fi
2524fi
2525case $we_are_ok in
2526 no)
2527 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2528 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2529 rm -f conftest*
2530 exit 1
2531 ;;
2532esac
6599da04
JM		 2533rm -f conftest*
2534
d89f0ad6 2535# Decide which environment variable is used to find dynamic libraries.
fe3d5b7f
NN		 2536case "${host}" in
2537 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
111eeb6e 2538 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
d89f0ad6 2539 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
fe3d5b7f
NN		 2540 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2541esac
fe3d5b7f 2542
d89f0ad6
AL		 2543# On systems where the dynamic library environment variable is PATH,
2544# gcc/ will put dynamic libraries into a subdirectory to avoid adding
2545# built executables to PATH.
2546if test "$RPATH_ENVVAR" = PATH; then
2547 GCC_SHLIB_SUBDIR=/shlib
2548else
2549 GCC_SHLIB_SUBDIR=
2550fi
2551
beeda1d9
JJ		 2552# Adjust the toplevel makefile according to whether bootstrap was selected.
2553case $enable_bootstrap in
2554 yes)
2555 bootstrap_suffix=bootstrap
2556 BUILD_CONFIG=bootstrap-debug
2557 ;;
2558 no)
2559 bootstrap_suffix=no-bootstrap
2560 BUILD_CONFIG=
2561 ;;
2562esac
2563
2564AC_MSG_CHECKING(for default BUILD_CONFIG)
2565
2566AC_ARG_WITH([build-config],
2567 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2568 [use config/NAME.mk build configuration])],
2569 [case $with_build_config in
2570 yes) with_build_config= ;;
2571 no) with_build_config= BUILD_CONFIG= ;;
2572 esac])
2573
2574if test "x${with_build_config}" != x; then
2575 BUILD_CONFIG=$with_build_config
2576else
2577 case $BUILD_CONFIG in
2578 bootstrap-debug)
2579 if echo "int f (void) { return 0; }" > conftest.c &&
2580 ${CC} -c conftest.c &&
2581 mv conftest.o conftest.o.g0 &&
2582 ${CC} -c -g conftest.c &&
2583 mv conftest.o conftest.o.g &&
2584 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2585 :
2586 else
2587 BUILD_CONFIG=
2588 fi
2589 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2590 ;;
2591 esac
2592fi
2593AC_MSG_RESULT($BUILD_CONFIG)
2594AC_SUBST(BUILD_CONFIG)
2595
2596# Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2597AC_MSG_CHECKING([for --enable-vtable-verify])
2598AC_ARG_ENABLE(vtable-verify,
318a4e6d
MF		 2599[AS_HELP_STRING([--enable-vtable-verify],
2600 [Enable vtable verification feature])],
beeda1d9
JJ		 2601[case "$enableval" in
2602 yes) enable_vtable_verify=yes ;;
2603 no) enable_vtable_verify=no ;;
2604 *) enable_vtable_verify=no;;
2605 esac],
2606[enable_vtable_verify=no])
2607AC_MSG_RESULT($enable_vtable_verify)
2608
4977bab6
ZW		 2609# Record target_configdirs and the configure arguments for target and
2610# build configuration in Makefile.
2611target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
23f6b2f9 2612build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
9e1c8fc1 2613bootstrap_fixincludes=no
4977bab6 2614
ad1e5170
JR		 2615# If we are building libgomp, bootstrap it.
2616if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2617 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2618fi
2619
beeda1d9
JJ		 2620# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2621# or bootstrap-ubsan, bootstrap it.
2622if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2623 case "$BUILD_CONFIG" in
2624 *bootstrap-asan* | *bootstrap-ubsan* )
2625 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
9e1c8fc1 2626 bootstrap_fixincludes=yes
beeda1d9
JJ		 2627 ;;
2628 esac
ac8701fe
L		 2629fi
2630
beeda1d9
JJ		 2631# If we are building libvtv and --enable-vtable-verify, bootstrap it.
2632if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2633 test "$enable_vtable_verify" != no; then
2077db1b
CT		 2634 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2635fi
2636
5373cd33
IE		 2637# If we are building libmpx, bootstrap it.
2638if echo " ${target_configdirs} " | grep " libmpx " > /dev/null 2>&1; then
2639 bootstrap_target_libs=${bootstrap_target_libs}target-libmpx,
2640fi
2641
4977bab6
ZW		 2642# Determine whether gdb needs tk/tcl or not.
2643# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2644# and in that case we want gdb to be built without tk. Ugh!
2645# In fact I believe gdb is the *only* package directly dependent on tk,
2646# so we should be able to put the 'maybe's in unconditionally and
2647# leave out the maybe dependencies when enable_gdbtk is false. I'm not
2648# 100% sure that that's safe though.
e914a571 2649
b4f96efe 2650gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
4977bab6
ZW		 2651case "$enable_gdbtk" in
2652 no)
2653 GDB_TK="" ;;
e914a571
AC		 2654 yes)
2655 GDB_TK="${gdb_tk}" ;;
4977bab6 2656 *)
e914a571
AC		 2657 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2658 # distro. Eventually someone will fix this and move Insight, nee
2659 # gdbtk to a separate directory.
2660 if test -d ${srcdir}/gdb/gdbtk ; then
2661 GDB_TK="${gdb_tk}"
2662 else
2663 GDB_TK=""
2664 fi
2665 ;;
4977bab6 2666esac
ef9db8d5
DJ		 2667CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2668INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
4977bab6 2669
60975492 2670# Strip out unwanted targets.
8b87bb96
NN		 2671
2672# While at that, we remove Makefiles if we were started for recursive
2673# configuration, so that the top-level Makefile reconfigures them,
2674# like we used to do when configure itself was recursive.
8b87bb96 2675
3e54529c
RW		 2676# Loop over modules. We used to use the "$extrasub" feature from Autoconf
2677# but now we're fixing up the Makefile ourselves with the additional
2678# commands passed to AC_CONFIG_FILES. Use separate variables
2679# extrasub-{build,host,target} not because there is any reason to split
2680# the substitutions up that way, but only to remain below the limit of
2681# 99 commands in a script, for HP-UX sed.
2682# Do not nest @if/@endif pairs, because configure will not warn you at all.
8b87bb96 2683
79cd2b23
RW		 2684case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2685 yes:yes:*\ gold\ *:*,c++,*) ;;
2686 yes:yes:*\ gold\ *:*)
2687 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2688 ;;
2689esac
2690
3e54529c 2691extrasub_build=
23f6b2f9 2692for module in ${build_configdirs} ; do
8b87bb96
NN		 2693 if test -z "${no_recursion}" \
2694 && test -f ${build_subdir}/${module}/Makefile; then
2695 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2696 rm -f ${build_subdir}/${module}/Makefile
2697 fi
3e54529c 2698 extrasub_build="$extrasub_build
60975492 2699/^@if build-$module\$/d
5607edfd
PB		 2700/^@endif build-$module\$/d
2701/^@if build-$module-$bootstrap_suffix\$/d
2702/^@endif build-$module-$bootstrap_suffix\$/d"
8b87bb96 2703done
3e54529c 2704extrasub_host=
8b87bb96 2705for module in ${configdirs} ; do
a6fbc1e2 2706 if test -z "${no_recursion}"; then
f063a9ed 2707 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
a6fbc1e2
AS		 2708 if test -f ${file}; then
2709 echo 1>&2 "*** removing ${file} to force reconfigure"
2710 rm -f ${file}
2711 fi
2712 done
8b87bb96 2713 fi
9e1c8fc1
JJ		 2714 case ${module},${bootstrap_fixincludes} in
2715 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2716 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2717 esac
3e54529c 2718 extrasub_host="$extrasub_host
60975492 2719/^@if $module\$/d
5607edfd 2720/^@endif $module\$/d
9e1c8fc1
JJ		 2721/^@if $module-$host_bootstrap_suffix\$/d
2722/^@endif $module-$host_bootstrap_suffix\$/d"
8b87bb96 2723done
3e54529c 2724extrasub_target=
8b87bb96
NN		 2725for module in ${target_configdirs} ; do
2726 if test -z "${no_recursion}" \
2727 && test -f ${target_subdir}/${module}/Makefile; then
2728 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2729 rm -f ${target_subdir}/${module}/Makefile
2730 fi
00020c16
ILT		 2731
2732 # We only bootstrap target libraries listed in bootstrap_target_libs.
2733 case $bootstrap_target_libs in
2734 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2735 *) target_bootstrap_suffix=no-bootstrap ;;
2736 esac
2737
3e54529c 2738 extrasub_target="$extrasub_target
60975492 2739/^@if target-$module\$/d
5607edfd 2740/^@endif target-$module\$/d
00020c16
ILT		 2741/^@if target-$module-$target_bootstrap_suffix\$/d
2742/^@endif target-$module-$target_bootstrap_suffix\$/d"
4977bab6 2743done
f516a7da 2744
3e54529c
RW		 2745# Do the final fixup along with target modules.
2746extrasub_target="$extrasub_target
60975492 2747/^@if /,/^@endif /d"
4977bab6
ZW		 2748
2749# Create the serialization dependencies. This uses a temporary file.
2750
ade82b16 2751AC_ARG_ENABLE([serial-configure],
33e39b66
AS		 2752[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2753 [force sequential configuration of
2754 sub-packages for the host, target or build
2755 machine, or all sub-packages])])
bf1d3e81
NN		 2756
2757case ${enable_serial_configure} in
2758 yes)
2759 enable_serial_build_configure=yes
2760 enable_serial_host_configure=yes
2761 enable_serial_target_configure=yes
2762 ;;
2763esac
ade82b16 2764
4977bab6
ZW		 2765# These force 'configure's to be done one at a time, to avoid problems
2766# with contention over a shared config.cache.
2767rm -f serdep.tmp
ade82b16 2768echo '# serdep.tmp' > serdep.tmp
4977bab6 2769olditem=
bf1d3e81 2770test "x${enable_serial_build_configure}" = xyes &&
4977bab6
ZW		 2771for item in ${build_configdirs} ; do
2772 case ${olditem} in
2773 "") ;;
ade82b16 2774 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2775 esac
2776 olditem=${item}
2777done
2778olditem=
bf1d3e81 2779test "x${enable_serial_host_configure}" = xyes &&
4977bab6
ZW		 2780for item in ${configdirs} ; do
2781 case ${olditem} in
2782 "") ;;
ade82b16 2783 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2784 esac
2785 olditem=${item}
2786done
2787olditem=
bf1d3e81 2788test "x${enable_serial_target_configure}" = xyes &&
4977bab6
ZW		 2789for item in ${target_configdirs} ; do
2790 case ${olditem} in
2791 "") ;;
ade82b16 2792 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2793 esac
2794 olditem=${item}
2795done
671aa708
NN		 2796serialization_dependencies=serdep.tmp
2797AC_SUBST_FILE(serialization_dependencies)
fe3d5b7f 2798
ade82b16 2799# Base args. Strip norecursion, cache-file, srcdir, host, build,
1c710c3c 2800# target, nonopt, and variable assignments. These are the ones we
f1a036e4
NC		 2801# might not want to pass down to subconfigures. The exception being
2802# --cache-file=/dev/null, which is used to turn off the use of cache
2803# files altogether, and which should be passed on to subconfigures.
2804# Also strip program-prefix, program-suffix, and program-transform-name,
2805# so that we can pass down a consistent program-transform-name.
1c710c3c 2806baseargs=
29a63921 2807tbaseargs=
1c710c3c
DJ		 2808keep_next=no
2809skip_next=no
2810eval "set -- $ac_configure_args"
44bfc3ac
DJ		 2811for ac_arg
2812do
1c710c3c
DJ		 2813 if test X"$skip_next" = X"yes"; then
2814 skip_next=no
2815 continue
2816 fi
2817 if test X"$keep_next" = X"yes"; then
2818 case $ac_arg in
2819 *\'*)
2820 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2821 esac
2822 baseargs="$baseargs '$ac_arg'"
29a63921 2823 tbaseargs="$tbaseargs '$ac_arg'"
1c710c3c
DJ		 2824 keep_next=no
2825 continue
2826 fi
2827
2828 # Handle separated arguments. Based on the logic generated by
2829 # autoconf 2.59.
2830 case $ac_arg in
2831 *=* | --config-cache | -C | -disable-* | --disable-* \
2832 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2833 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2834 | -with-* | --with-* | -without-* | --without-* | --x)
2835 separate_arg=no
2836 ;;
2837 -*)
2838 separate_arg=yes
2839 ;;
2840 *)
2841 separate_arg=no
2842 ;;
2843 esac
2844
29a63921
AO		 2845 skip_targ=no
2846 case $ac_arg in
2847changequote(,)
2848 --with-* | --without-*)
2849 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2850
2851 case $libopt in
2852 *[-_]include)
2853 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2854 ;;
2855 *[-_]lib)
2856 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2857 ;;
2858 *)
2859 lib=$libopt
2860 ;;
2861 esac
2862changequote([,])
2863
2864 case $lib in
4a9bb2aa 2865 mpc | mpfr | gmp | isl)
29a63921
AO		 2866 # If we're processing --with-$lib, --with-$lib-include or
2867 # --with-$lib-lib, for one of the libs above, and target is
2868 # different from host, don't pass the current argument to any
2869 # target library's configure.
2870 if test x$is_cross_compiler = xyes; then
2871 skip_targ=yes
2872 fi
2873 ;;
2874 esac
2875 ;;
2876 esac
2877
1c710c3c 2878 case "$ac_arg" in
f1a036e4
NC		 2879 --cache-file=/dev/null | \
2880 -cache-file=/dev/null )
2881 # Handled here to avoid the test to skip args below.
2882 baseargs="$baseargs '$ac_arg'"
29a63921 2883 tbaseargs="$tbaseargs '$ac_arg'"
f1a036e4
NC		 2884 # Assert: $separate_arg should always be no.
2885 keep_next=$separate_arg
2886 ;;
1c710c3c
DJ		 2887 --no*)
2888 continue
2889 ;;
2890 --c* | \
2891 --sr* | \
2892 --ho* | \
2893 --bu* | \
2894 --t* | \
2895 --program-* | \
2896 -cache_file* | \
2897 -srcdir* | \
2898 -host* | \
2899 -build* | \
2900 -target* | \
2901 -program-prefix* | \
2902 -program-suffix* | \
2903 -program-transform-name* )
2904 skip_next=$separate_arg
2905 continue
2906 ;;
2907 -*)
2908 # An option. Add it.
2909 case $ac_arg in
2910 *\'*)
2911 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2912 esac
2913 baseargs="$baseargs '$ac_arg'"
29a63921
AO		 2914 if test X"$skip_targ" = Xno; then
2915 tbaseargs="$tbaseargs '$ac_arg'"
2916 fi
1c710c3c
DJ		 2917 keep_next=$separate_arg
2918 ;;
2919 *)
2920 # Either a variable assignment, or a nonopt (triplet). Don't
2921 # pass it down; let the Makefile handle this.
2922 continue
2923 ;;
2924 esac
2925done
2926# Remove the initial space we just introduced and, as these will be
2927# expanded by make, quote '$'.
2928baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
6599da04 2929
43bb47c2
DJ		 2930# Add in --program-transform-name, after --program-prefix and
2931# --program-suffix have been applied to it. Autoconf has already
2932# doubled dollar signs and backslashes in program_transform_name; we want
2933# the backslashes un-doubled, and then the entire thing wrapped in single
2934# quotes, because this will be expanded first by make and then by the shell.
2935# Also, because we want to override the logic in subdir configure scripts to
2936# choose program_transform_name, replace any s,x,x, with s,y,y,.
2937sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2938${program_transform_name}
2939EOF_SED
2940gcc_transform_name=`cat conftestsed.out`
2941rm -f conftestsed.out
2942baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
29a63921 2943tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
d9acb717
RW		 2944if test "$silent" = yes; then
2945 baseargs="$baseargs --silent"
29a63921 2946 tbaseargs="$tbaseargs --silent"
d9acb717 2947fi
0115d4a3 2948baseargs="$baseargs --disable-option-checking"
29a63921 2949tbaseargs="$tbaseargs --disable-option-checking"
43bb47c2 2950
ffedf511
RW		 2951# Record and document user additions to sub configure arguments.
2952AC_ARG_VAR([build_configargs],
2953 [additional configure arguments for build directories])
2954AC_ARG_VAR([host_configargs],
2955 [additional configure arguments for host directories])
2956AC_ARG_VAR([target_configargs],
2957 [additional configure arguments for target directories])
2958
e490616e
ZW		 2959# For the build-side libraries, we just need to pretend we're native,
2960# and not use the same cache file. Multilibs are neither needed nor
3d96b0d0
HPN		 2961# desired. We can't even use the same cache file for all build-side
2962# libraries, as they're compiled differently; some with C, some with
2963# C++ or with different feature-enabling options.
2964build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
e254d6b5 2965
4977bab6
ZW		 2966# For host modules, accept cache file option, or specification as blank.
2967case "${cache_file}" in
2968"") # empty
2969 cache_file_option="" ;;
671aa708 2970/* | [[A-Za-z]]:[[\\/]]* ) # absolute path
4977bab6
ZW		 2971 cache_file_option="--cache-file=${cache_file}" ;;
2972*) # relative path
2973 cache_file_option="--cache-file=../${cache_file}" ;;
2974esac
2975
09438bde
NN		 2976# Host dirs don't like to share a cache file either, horribly enough.
2977# This seems to be due to autoconf 2.5x stupidity.
ffedf511 2978host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
4977bab6 2979
29a63921 2980target_configargs="$target_configargs ${tbaseargs}"
e490616e 2981
6599da04
JM		 2982# Passing a --with-cross-host argument lets the target libraries know
2983# whether they are being built with a cross-compiler or being built
2984# native. However, it would be better to use other mechanisms to make the
2985# sorts of decisions they want to make on this basis. Please consider
2986# this option to be deprecated. FIXME.
aeaa0f2f 2987if test x${is_cross_compiler} = xyes ; then
1c710c3c 2988 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
6599da04
JM		 2989fi
2990
79e0604d
FXC		 2991# Special user-friendly check for native x86_64-linux build, if
2992# multilib is not explicitly enabled.
2993case "$target:$have_compiler:$host:$target:$enable_multilib" in
2994 x86_64-*linux*:yes:$build:$build:)
e640447c 2995 # Make sure we have a development environment that handles 32-bit
79e0604d
FXC		 2996 dev64=no
2997 echo "int main () { return 0; }" > conftest.c
2998 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2999 if test $? = 0 ; then
3000 if test -s conftest || test -s conftest.exe ; then
3001 dev64=yes
3002 fi
3003 fi
3004 rm -f conftest*
3005 if test x${dev64} != xyes ; then
e640447c 3006 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		 3007 fi
3008 ;;
3009esac
3010
dc683a3f
RW		 3011# Default to --enable-multilib.
3012if test x${enable_multilib} = x ; then
3fedb745 3013 target_configargs="--enable-multilib ${target_configargs}"
dc683a3f 3014fi
6599da04 3015
5d4a5ee6
JL		 3016# Pass --with-newlib if appropriate. Note that target_configdirs has
3017# changed from the earlier setting of with_newlib.
aeaa0f2f 3018if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3fedb745 3019 target_configargs="--with-newlib ${target_configargs}"
5d4a5ee6
JL		 3020fi
3021
6b9eb62c
NN		 3022# Different target subdirs use different values of certain variables
3023# (notably CXX). Worse, multilibs use *lots* of different values.
3024# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3025# it doesn't automatically accept command-line overrides of them.
3026# This means it's not safe for target subdirs to share a cache file,
3027# which is disgusting, but there you have it. Hopefully this can be
3028# fixed in future. It's still worthwhile to use a cache file for each
3029# directory. I think.
3030
bebcd931
MS		 3031# Pass the appropriate --build, --host, --target and --cache-file arguments.
3032# We need to pass --target, as newer autoconf's requires consistency
3033# for target_alias and gcc doesn't manage it consistently.
e69bf64b 3034target_configargs="--cache-file=./config.cache ${target_configargs}"
e490616e 3035
b87487b6 3036FLAGS_FOR_TARGET=
bb654703 3037case " $target_configdirs " in
7965440a 3038 *" newlib "*)
3fedb745 3039 case " $target_configargs " in
7965440a 3040 *" --with-newlib "*)
b87487b6 3041 case "$target" in
5d571eaa 3042 *-cygwin*)
443e6238 3043 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
5d571eaa 3044 ;;
b87487b6
AO		 3045 esac
3046
afd7db25 3047 # If we're not building GCC, don't discard standard headers.
ef40bc65 3048 if test -d ${srcdir}/gcc; then
d4eb109c 3049 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
afd7db25
AO		 3050
3051 if test "${build}" != "${host}"; then
3052 # On Canadian crosses, CC_FOR_TARGET will have already been set
3053 # by `configure', so we won't have an opportunity to add -Bgcc/
3054 # to it. This is right: we don't want to search that directory
3055 # for binaries, but we want the header files in there, so add
3056 # them explicitly.
0463992b 3057 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
afd7db25
AO		 3058
3059 # Someone might think of using the pre-installed headers on
3060 # Canadian crosses, in case the installed compiler is not fully
3061 # compatible with the compiler being built. In this case, it
3062 # would be better to flag an error than risking having
3063 # incompatible object files being constructed. We can't
3064 # guarantee that an error will be flagged, but let's hope the
3065 # compiler will do it, when presented with incompatible header
3066 # files.
3067 fi
d4eb109c
AO		 3068 fi
3069
ab50d72b 3070 case "${target}-${is_cross_compiler}" in
f2a0e225 3071 i[[3456789]]86-*-linux*-no)
ab50d72b
DD		 3072 # Here host == target, so we don't need to build gcc,
3073 # so we don't want to discard standard headers.
3074 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
ab50d72b
DD		 3075 ;;
3076 *)
3077 # If we're building newlib, use its generic headers last, but search
3078 # for any libc-related directories first (so make it the last -B
3079 # switch).
3080 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
c03353e2
RIL		 3081
3082 # If we're building libgloss, find the startup file, simulator library
3083 # and linker script.
3084 case " $target_configdirs " in
3085 *" libgloss "*)
3086 # Look for startup file, simulator library and maybe linker script.
3087 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3088 # Look for libnosys.a in case the target needs it.
3089 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3090 # Most targets have the linker script in the source directory.
3091 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3092 ;;
3093 esac
ab50d72b
DD		 3094 ;;
3095 esac
b87487b6 3096 ;;
7965440a
AO		 3097 esac
3098 ;;
b87487b6 3099esac
5d571eaa 3100
b91f0a41 3101case "$target" in
5d571eaa
OS		 3102 x86_64-*mingw* | *-w64-mingw*)
3103 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3104 # however, use a symlink named 'mingw' in ${prefix} .
3105 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3106 ;;
3107 *-mingw*)
3108 # MinGW can't be handled as Cygwin above since it does not use newlib.
3109 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3110 ;;
b91f0a41 3111esac
d4eb109c 3112
6691a79e
ME		 3113# Allow the user to override the flags for
3114# our build compiler if desired.
f019adc1
MF		 3115if test x"${build}" = x"${host}" ; then
3116 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3117 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3118 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3119fi
6691a79e 3120
d4eb109c
AO		 3121# On Canadian crosses, we'll be searching the right directories for
3122# the previously-installed cross compiler, so don't bother to add
3123# flags for directories within the install tree of the compiler
3124# being built; programs in there won't even run.
ef40bc65 3125if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
b87487b6 3126 # Search for pre-installed headers if nothing else fits.
9124bc53 3127 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
b87487b6 3128fi
d4eb109c 3129
bb654703 3130if test "x${use_gnu_ld}" = x &&
55380b08 3131 echo " ${configdirs} " | grep " ld " > /dev/null ; then
b87487b6 3132 # Arrange for us to find uninstalled linker scripts.
215c351a 3133 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
b87487b6
AO		 3134fi
3135
e88a2c09
DD		 3136# Search for other target-specific linker scripts and such.
3137case "${target}" in
3e19841a
PB		 3138 mep*)
3139 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3140 ;;
e88a2c09
DD		 3141esac
3142
671aa708 3143# Makefile fragments.
7b61653a
PE		 3144for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3145do
3146 eval fragval=\$$frag
3147 if test $fragval != /dev/null; then
3148 eval $frag=${srcdir}/$fragval
3149 fi
3150done
671aa708
NN		 3151AC_SUBST_FILE(host_makefile_frag)
3152AC_SUBST_FILE(target_makefile_frag)
3153AC_SUBST_FILE(alphaieee_frag)
3154AC_SUBST_FILE(ospace_frag)
3155
3156# Miscellanea: directories, flags, etc.
671aa708 3157AC_SUBST(RPATH_ENVVAR)
d89f0ad6 3158AC_SUBST(GCC_SHLIB_SUBDIR)
671aa708
NN		 3159AC_SUBST(tooldir)
3160AC_SUBST(build_tooldir)
ef9db8d5 3161AC_SUBST(CONFIGURE_GDB_TK)
671aa708 3162AC_SUBST(GDB_TK)
ef9db8d5 3163AC_SUBST(INSTALL_GDB_TK)
671aa708
NN		 3164
3165# Build module lists & subconfigure args.
671aa708 3166AC_SUBST(build_configargs)
23f6b2f9 3167AC_SUBST(build_configdirs)
671aa708
NN		 3168
3169# Host module lists & subconfigure args.
3170AC_SUBST(host_configargs)
3171AC_SUBST(configdirs)
aae29963 3172AC_SUBST(target_configdirs)
671aa708
NN		 3173
3174# Target module lists & subconfigure args.
671aa708 3175AC_SUBST(target_configargs)
ee2312f3 3176
671aa708
NN		 3177
3178# Build tools.
0999159b
PB		 3179AC_SUBST(AR_FOR_BUILD)
3180AC_SUBST(AS_FOR_BUILD)
671aa708 3181AC_SUBST(CC_FOR_BUILD)
0999159b
PB		 3182AC_SUBST(CFLAGS_FOR_BUILD)
3183AC_SUBST(CXXFLAGS_FOR_BUILD)
3184AC_SUBST(CXX_FOR_BUILD)
3185AC_SUBST(DLLTOOL_FOR_BUILD)
3186AC_SUBST(GCJ_FOR_BUILD)
3187AC_SUBST(GFORTRAN_FOR_BUILD)
632e2a07 3188AC_SUBST(GOC_FOR_BUILD)
0999159b
PB		 3189AC_SUBST(LDFLAGS_FOR_BUILD)
3190AC_SUBST(LD_FOR_BUILD)
3191AC_SUBST(NM_FOR_BUILD)
3192AC_SUBST(RANLIB_FOR_BUILD)
3193AC_SUBST(WINDMC_FOR_BUILD)
3194AC_SUBST(WINDRES_FOR_BUILD)
671aa708 3195
2abefe3d
PB		 3196# Generate default definitions for YACC, M4, LEX and other programs that run
3197# on the build machine. These are used if the Makefile can't locate these
3198# programs in objdir.
3199MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3200
3201AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3202case " $build_configdirs " in
3203 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2abefe3d
PB		 3204esac
3205
3206AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3207case " $build_configdirs " in
3208 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3209esac
3210
3211AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3212case " $build_configdirs " in
3213 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3214esac
3215
3216AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3217case " $build_configdirs " in
3218 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3219 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3220esac
3221
3222AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3223case " $build_configdirs " in
3224 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3225esac
3226
3227AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3228case " $build_configdirs " in
3229 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3230 *)
3231changequote(,)
d18ff35a 3232 # For an installed makeinfo, we require it to be from texinfo 4.7 or
2abefe3d
PB		 3233 # higher, else we use the "missing" dummy.
3234 if ${MAKEINFO} --version \
d18ff35a 3235 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
2abefe3d
PB		 3236 :
3237 else
3238 MAKEINFO="$MISSING makeinfo"
3239 fi
3240 ;;
3241changequote([,])
3242esac
3243
3244# FIXME: expect and dejagnu may become build tools?
3245
3246AC_CHECK_PROGS(EXPECT, expect, expect)
3247case " $configdirs " in
3248 *" expect "*)
3249 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3250 ;;
3251esac
3252
3253AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3254case " $configdirs " in
3255 *" dejagnu "*)
c394e891 3256 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2abefe3d
PB		 3257 ;;
3258esac
3259
3260
671aa708 3261# Host tools.
2693c0b0
PB		 3262NCN_STRICT_CHECK_TOOLS(AR, ar)
3263NCN_STRICT_CHECK_TOOLS(AS, as)
3264NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3265NCN_STRICT_CHECK_TOOLS(LD, ld)
2abefe3d 3266NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2693c0b0 3267NCN_STRICT_CHECK_TOOLS(NM, nm)
8927b7c0
RO		 3268NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3269NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
2693c0b0 3270NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
901119ae 3271NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
2693c0b0
PB		 3272NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3273NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
e7a82751 3274NCN_STRICT_CHECK_TOOLS(READELF, readelf)
671aa708
NN		 3275AC_SUBST(CC)
3276AC_SUBST(CXX)
3277AC_SUBST(CFLAGS)
3278AC_SUBST(CXXFLAGS)
671aa708 3279
2abefe3d 3280# Target tools.
e8b05380 3281AC_ARG_WITH([build-time-tools],
33e39b66
AS		 3282 [AS_HELP_STRING([--with-build-time-tools=PATH],
3283 [use given path to find target tools during the build])],
e8b05380
PB		 3284 [case x"$withval" in
3285 x/*) ;;
3286 *)
3287 with_build_time_tools=
3288 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3289 ;;
3290 esac],
3291 [with_build_time_tools=])
3292
2693c0b0
PB		 3293NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3294NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2693c0b0
PB		 3295NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3296NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
3297NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
632e2a07 3298NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
e8b05380
PB		 3299
3300ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3301ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3302ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3303ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3304ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3305ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
9bccfdf5 3306ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
e8b05380 3307ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
8927b7c0 3308ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
e7a82751 3309ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
e8b05380
PB		 3310ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3311ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
901119ae 3312ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
4de997d1 3313
2abefe3d
PB		 3314RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3315
3316GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3317GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3318GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
b3f122e0 3319dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
2abefe3d 3320GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2077db1b 3321 [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		 3322 c++)
3323GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2077db1b 3324 [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		 3325 c++)
3326GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3327GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2abefe3d
PB		 3328GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3329 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
632e2a07
ILT		 3330GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3331 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
2abefe3d
PB		 3332GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3333GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3334GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
ec8fd1c0 3335GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
2abefe3d
PB		 3336GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3337GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
e7a82751 3338GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
455c8f48 3339GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
2abefe3d 3340GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
901119ae 3341GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
4de997d1 3342
2abefe3d 3343AC_SUBST(FLAGS_FOR_TARGET)
4de997d1 3344AC_SUBST(RAW_CXX_FOR_TARGET)
be912515 3345
671aa708
NN		 3346# Certain tools may need extra flags.
3347AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3348RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3349NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
6599da04 3350
2abefe3d
PB		 3351# When building target libraries, except in a Canadian cross, we use
3352# the same toolchain as the compiler we just built.
3353COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3354COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3355COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3356if test $host = $build; then
3357 case " $configdirs " in
3358 *" gcc "*)
3359 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3360 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3361 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3362 ;;
3363 esac
3364fi
3365
3366AC_SUBST(COMPILER_AS_FOR_TARGET)
3367AC_SUBST(COMPILER_LD_FOR_TARGET)
3368AC_SUBST(COMPILER_NM_FOR_TARGET)
3369
ee03dc5e
AO		 3370AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3371AC_ARG_ENABLE(maintainer-mode,
33e39b66
AS		 3372[AS_HELP_STRING([--enable-maintainer-mode],
3373 [enable make rules and dependencies not useful
3374 (and sometimes confusing) to the casual installer])],
ee03dc5e
AO		 3375 USE_MAINTAINER_MODE=$enableval,
3376 USE_MAINTAINER_MODE=no)
3377AC_MSG_RESULT($USE_MAINTAINER_MODE)
3378AC_SUBST(MAINTAINER_MODE_TRUE)
3379AC_SUBST(MAINTAINER_MODE_FALSE)
3380if test "$USE_MAINTAINER_MODE" = yes; then
3381 MAINTAINER_MODE_TRUE=
3382 MAINTAINER_MODE_FALSE='#'
3383else
3384 MAINTAINER_MODE_TRUE='#'
3385 MAINTAINER_MODE_FALSE=
3386fi
3387MAINT=$MAINTAINER_MODE_TRUE
3388AC_SUBST(MAINT)dnl
3389
2805b53a
NN		 3390# ---------------------
3391# GCC bootstrap support
3392# ---------------------
3393
3394# Stage specific cflags for build.
3395stage1_cflags="-g"
3396case $build in
3397 vax-*-*)
3398 case ${GCC} in
3399 yes) stage1_cflags="-g -Wa,-J" ;;
3400 *) stage1_cflags="-g -J" ;;
3401 esac ;;
2805b53a 3402esac
0b50988a 3403
2805b53a
NN		 3404AC_SUBST(stage1_cflags)
3405
8efea775
PB		 3406# Enable --enable-checking in stage1 of the compiler.
3407AC_ARG_ENABLE(stage1-checking,
33e39b66
AS		 3408[AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3409 [choose additional checking for stage1 of the compiler])],
8efea775 3410[stage1_checking=--enable-checking=${enable_stage1_checking}],
e643dc23 3411[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
c10b5ea0
JJ		 3412 # For --disable-checking or implicit --enable-checking=release, avoid
3413 # setting --enable-checking=gc in the default stage1 checking for LTO
3414 # bootstraps. See PR62077.
c10b5ea0
JJ		 3415 case $BUILD_CONFIG in
3416 *lto*)
7db11a5a
JJ		 3417 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3418 *)
3419 stage1_checking=--enable-checking=yes,types;;
c10b5ea0 3420 esac
7db11a5a
JJ		 3421 if test "x$enable_checking" = x && \
3422 test -d ${srcdir}/gcc && \
3423 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
c100769b 3424 stage1_checking=--enable-checking=yes,types,extra
7db11a5a 3425 fi
8efea775 3426else
e643dc23 3427 stage1_checking=--enable-checking=$enable_checking,types
8efea775
PB		 3428fi])
3429AC_SUBST(stage1_checking)
3430
2805b53a 3431# Enable -Werror in bootstrap stage2 and later.
2805b53a 3432AC_ARG_ENABLE(werror,
33e39b66
AS		 3433[AS_HELP_STRING([--enable-werror],
3434 [enable -Werror in bootstrap stage2 and later])], [],
416cfb5e 3435[if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
88fceb68
PB		 3436 enable_werror=yes
3437else
3438 enable_werror=no
3439fi])
09a9c095
NN		 3440case ${enable_werror} in
3441 yes) stage2_werror_flag="--enable-werror-always" ;;
3442 *) stage2_werror_flag="" ;;
2805b53a 3443esac
09a9c095 3444AC_SUBST(stage2_werror_flag)
2805b53a 3445
459260ec
DM		 3446# Enable --enable-host-shared.
3447AC_ARG_ENABLE(host-shared,
3448[AS_HELP_STRING([--enable-host-shared],
3449 [build host code as shared libraries])],
3450[host_shared=$enableval], [host_shared=no])
3451AC_SUBST(host_shared)
3452
231d020b
DM		 3453# PR jit/64780: Require the user to explicitly specify
3454# --enable-host-shared if the jit is enabled, hinting
3455# that they might want to do a separate configure/build of
3456# the jit, to avoid users from slowing down the rest of the
3457# compiler by enabling the jit.
3458if test ${host_shared} = "no" ; then
3459 case "${enable_languages}" in
3460 *jit*)
3461 AC_MSG_ERROR([
3462Enabling language "jit" requires --enable-host-shared.
3463
3464--enable-host-shared typically slows the rest of the compiler down by
3465a few %, so you must explicitly enable it.
3466
3467If you want to build both the jit and the regular compiler, it is often
3468best to do this via two separate configure/builds, in separate
3469directories, to avoid imposing the performance cost of
3470--enable-host-shared on the regular compiler.])
3471 ;;
3472 *)
3473 ;;
3474 esac
3475fi
3476
f2689b09
SE		 3477# Specify what files to not compare during bootstrap.
3478
3479compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3480case "$target" in
3481 hppa*64*-*-hpux*) ;;
3482 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
d7a29167 3483 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
f2689b09
SE		 3484esac
3485AC_SUBST(compare_exclusions)
3486
3e54529c
RW		 3487AC_CONFIG_FILES([Makefile],
3488 [sed "$extrasub_build" Makefile |
3489 sed "$extrasub_host" |
3490 sed "$extrasub_target" > mf$$
3491 mv -f mf$$ Makefile],
3492 [extrasub_build="$extrasub_build"
3493 extrasub_host="$extrasub_host"
3494 extrasub_target="$extrasub_target"])
3495AC_OUTPUT
GNU Compiler Collection
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