]> git.ipfire.org Git - thirdparty/gcc.git/blame - configure.ac
projects / thirdparty / gcc.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
docs: Add __GIMPLE and __RTL to the "Internals" doc
[thirdparty/gcc.git] / configure.ac
CommitLineData
beeaf216 1# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
ec8fd1c0 2# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
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 \
5fd1486c 155 target-libhsail-rt \
48310492 156 target-libatomic \
0a35513e 157 target-libitm \
cb543528 158 target-libstdc++-v3 \
f35db108 159 target-libsanitizer \
2077db1b 160 target-libvtv \
5373cd33 161 target-libmpx \
77008252 162 target-libssp \
1ec601bf 163 target-libquadmath \
6de9cd9a 164 target-libgfortran \
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
5fd1486c
PJ		 816# Disable the BRIG frontend and libhsail-rt on untested or known
817# broken systems. Currently it has been tested only on x86_64 Linux
818# of the upstream gcc targets. More targets shall be added after testing.
819case "${target}" in
820 x86_64-*-linux*)
821 ;;
822 *)
823 unsupported_languages="$unsupported_languages brig"
824 # This implicitly disables also target-libhsail-rt as it won't
825 # get added to the build without BRIG FE.
826 ;;
827esac
828
c03353e2
RIL		 829# Default libgloss CPU subdirectory.
830libgloss_dir="$target_cpu"
6de9cd9a 831
fbcf0dca
JM		 832case "${target}" in
833 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
834 libgloss_dir=wince
835 ;;
4dddfc74
YZ		 836 aarch64*-*-* )
837 libgloss_dir=aarch64
838 ;;
fbcf0dca
JM		 839 arm*-*-*)
840 libgloss_dir=arm
841 ;;
842 cris-*-* | crisv32-*-*)
843 libgloss_dir=cris
844 ;;
845 hppa*-*-*)
846 libgloss_dir=pa
847 ;;
848 i[[3456789]]86-*-*)
849 libgloss_dir=i386
850 ;;
851 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
852 libgloss_dir=m68hc11
853 ;;
854 m68*-*-* | fido-*-*)
855 libgloss_dir=m68k
856 ;;
857 mips*-*-*)
858 libgloss_dir=mips
859 ;;
860 powerpc*-*-*)
861 libgloss_dir=rs6000
862 ;;
863 sparc*-*-*)
864 libgloss_dir=sparc
865 ;;
866esac
867
6a789d5e 868# Disable newlib and libgloss for various target OSes.
6599da04 869case "${target}" in
6a789d5e
JM		 870 alpha*-dec-osf*)
871 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
872 ;;
873 i[[3456789]]86-*-linux*)
874 # This section makes it possible to build newlib natively on linux.
875 # If we are using a cross compiler then don't configure newlib.
876 if test x${is_cross_compiler} != xno ; then
877 noconfigdirs="$noconfigdirs target-newlib"
878 fi
879 noconfigdirs="$noconfigdirs target-libgloss"
880 # If we are not using a cross compiler, do configure newlib.
881 # Note however, that newlib will only be configured in this situation
882 # if the --with-newlib option has been given, because otherwise
883 # 'target-newlib' will appear in skipdirs.
884 ;;
885 i[[3456789]]86-*-rdos*)
886 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
887 ;;
888 sh*-*-pe|mips*-*-pe|arm-wince-pe)
889 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
890 ;;
891 sparc-*-sunos4*)
892 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
893 ;;
894 *-*-aix*)
895 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
896 ;;
897 *-*-beos*)
898 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
899 ;;
3fa03ff9 900 *-*-chorusos)
0036370f 901 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
3fa03ff9 902 ;;
6a789d5e
JM		 903 *-*-dragonfly*)
904 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
905 ;;
906 *-*-freebsd*)
907 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
908 ;;
909 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
910 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
911 ;;
912 *-*-lynxos*)
913 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
914 ;;
915 *-*-mingw*)
916 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
917 ;;
918 *-*-netbsd*)
919 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
920 ;;
921 *-*-netware*)
922 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
923 ;;
924 *-*-tpf*)
925 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
926 ;;
927 *-*-uclinux*)
928 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
929 ;;
930 *-*-vxworks*)
931 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
932 ;;
933esac
934
935case "${target}" in
936 *-*-chorusos)
937 ;;
3be96231
TG		 938 aarch64-*-darwin*)
939 noconfigdirs="$noconfigdirs ld gas gdb gprof"
940 noconfigdirs="$noconfigdirs sim target-rda"
941 ;;
942 arm-*-darwin*)
943 noconfigdirs="$noconfigdirs ld gas gdb gprof"
944 noconfigdirs="$noconfigdirs sim target-rda"
945 ;;
75eeae1a 946 powerpc-*-darwin*)
e1514c3f 947 noconfigdirs="$noconfigdirs ld gas gdb gprof"
9c8f9ec2 948 noconfigdirs="$noconfigdirs sim target-rda"
940cde4d 949 ;;
354ebf88
RW		 950 i[[3456789]]86-*-darwin*)
951 noconfigdirs="$noconfigdirs ld gprof"
952 noconfigdirs="$noconfigdirs sim target-rda"
953 ;;
954 x86_64-*-darwin[[912]]*)
0db3a858
TG		 955 noconfigdirs="$noconfigdirs ld gas gprof"
956 noconfigdirs="$noconfigdirs sim target-rda"
957 ;;
42c1cd8a
AT		 958 *-*-darwin*)
959 noconfigdirs="$noconfigdirs ld gas gdb gprof"
960 noconfigdirs="$noconfigdirs sim target-rda"
42c1cd8a 961 ;;
8c6d158a 962 *-*-dragonfly*)
8c6d158a 963 ;;
c3f84f61 964 *-*-freebsd*)
6de9cd9a
DN		 965 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
966 && test -f /usr/local/include/gmp.h; then
967 with_gmp=/usr/local
968 fi
6de9cd9a 969 ;;
ef4e7569
US		 970 *-*-kaos*)
971 # Remove unsupported stuff on all kaOS configurations.
ef4e7569
US		 972 noconfigdirs="$noconfigdirs target-libgloss"
973 ;;
51584787 974 *-*-netbsd*)
51584787 975 ;;
61fec9ff 976 *-*-netware*)
6599da04 977 ;;
fd6487af
JS		 978 *-*-phoenix*)
979 noconfigdirs="$noconfigdirs target-libgloss"
980 ;;
3fbc0b70 981 *-*-rtems*)
2909494b 982 noconfigdirs="$noconfigdirs target-libgloss"
74ae587e
JBG		 983 # this is not caught below because this stanza matches earlier
984 case $target in
985 or1k*-*-*) noconfigdirs="$noconfigdirs gdb" ;;
986 esac
3fbc0b70 987 ;;
a8ba31f2
EC		 988 # The tpf target doesn't support gdb yet.
989 *-*-tpf*)
6a789d5e 990 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
a8ba31f2 991 ;;
5785c0ed 992 *-*-uclinux*)
6a789d5e 993 noconfigdirs="$noconfigdirs target-rda"
5785c0ed 994 ;;
6599da04 995 *-*-vxworks*)
6599da04 996 ;;
b104e095 997 alpha*-dec-osf*)
603606e7 998 # ld works, but does not support shared libraries.
6599da04 999 # gas doesn't generate exception information.
6a789d5e 1000 noconfigdirs="$noconfigdirs gas ld"
6599da04
JM		 1001 ;;
1002 alpha*-*-*vms*)
2909494b 1003 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
6599da04
JM		 1004 ;;
1005 alpha*-*-*)
1006 # newlib is not 64 bit ready
2909494b 1007 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1008 ;;
3a685f6f 1009 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
b4f96efe 1010 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
3a685f6f 1011 ;;
2fd88f4f
AK		 1012 arc*-*-*)
1013 noconfigdirs="$noconfigdirs sim"
1014 ;;
6599da04 1015 arm-*-pe*)
2909494b 1016 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1017 ;;
5d4a5ee6 1018 arm-*-riscix*)
0036370f 1019 noconfigdirs="$noconfigdirs ld target-libgloss"
5d4a5ee6 1020 ;;
b588ae30
GJL		 1021 avr-*-*)
1022 if test x${with_avrlibc} != xno; then
1023 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1024 fi
1025 ;;
a5a438f5 1026 c4x-*-* | tic4x-*-*)
0036370f 1027 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1028 ;;
0036370f
JM		 1029 tic54x-*-*)
1030 noconfigdirs="$noconfigdirs target-libgloss gdb"
ab50d72b 1031 ;;
6599da04 1032 d10v-*-*)
0036370f 1033 noconfigdirs="$noconfigdirs target-libgloss"
d207ebef
JM		 1034 ;;
1035 d30v-*-*)
0036370f 1036 noconfigdirs="$noconfigdirs gdb"
6599da04 1037 ;;
09b5f8bf 1038 fr30-*-elf*)
2909494b 1039 noconfigdirs="$noconfigdirs gdb"
09b5f8bf 1040 ;;
a05c2c75
L		 1041 ft32-*-*)
1042 noconfigdirs="$noconfigdirs target-rda gprof"
1043 ;;
55f2d967 1044 moxie-*-*)
a05c2c75 1045 noconfigdirs="$noconfigdirs"
55f2d967 1046 ;;
ab50d72b 1047 h8300*-*-*)
2909494b 1048 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1049 ;;
6599da04 1050 h8500-*-*)
0036370f 1051 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1052 ;;
9d069a4f 1053 hppa1.1-*-osf* | hppa1.1-*-bsd* )
9d069a4f 1054 ;;
a05c2c75
L		 1055 hppa*64*-*-hpux*)
1056 noconfigdirs="$noconfigdirs gdb"
1057 ;;
1058 hppa*-*-hpux11*)
1059 noconfigdirs="$noconfigdirs gdb ld"
1060 ;;
4569f85e 1061 hppa*64*-*-linux*)
cdbff0ab 1062 ;;
56f8587a 1063 hppa*-*-linux*)
3e732ba0 1064 ;;
6599da04 1065 hppa*-*-*elf* | \
bae29210 1066 hppa*-*-lites* | \
66350331 1067 hppa*-*-openbsd* | \
bae29210 1068 hppa*64*-*-*)
6599da04 1069 ;;
c03353e2 1070 hppa*-*-pro*)
c03353e2 1071 ;;
6599da04 1072 hppa*-*-*)
2909494b 1073 noconfigdirs="$noconfigdirs ld"
d207ebef 1074 ;;
fb87ad5d 1075 i960-*-*)
0036370f 1076 noconfigdirs="$noconfigdirs gdb"
fb87ad5d 1077 ;;
d207ebef
JM		 1078 ia64*-*-elf*)
1079 # No gdb support yet.
1bcce263 1080 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
d207ebef 1081 ;;
ab50d72b 1082 ia64*-**-hpux*)
5a2931d1 1083 # No ld support yet.
a05c2c75 1084 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
ab50d72b 1085 ;;
52535a64 1086 ia64*-*-*vms*)
091fe9ca
TG		 1087 # No ld support yet.
1088 noconfigdirs="$noconfigdirs libgui itcl ld"
52535a64 1089 ;;
ef4c4300 1090 i[[3456789]]86-w64-mingw*)
ef4c4300
KT		 1091 ;;
1092 i[[3456789]]86-*-mingw*)
b91f0a41 1093 target_configdirs="$target_configdirs target-winsup"
5d571eaa 1094 ;;
d207ebef
JM		 1095 *-*-cygwin*)
1096 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1bcce263 1097 noconfigdirs="$noconfigdirs target-libgloss"
801e2270 1098 # always build newlib if winsup directory is present.
b91f0a41 1099 if test -d "$srcdir/winsup/cygwin"; then
801e2270 1100 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
c8e6cd41 1101 elif test -d "$srcdir/newlib"; then
b91f0a41 1102 echo "Warning: winsup/cygwin is missing so newlib can't be built."
801e2270 1103 fi
5d571eaa 1104 ;;
f2a0e225 1105 i[[3456789]]86-*-pe)
ebb9f8b0 1106 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1107 ;;
f2a0e225 1108 i[[3456789]]86-*-sco3.2v5*)
6599da04
JM		 1109 # The linker does not yet know about weak symbols in COFF,
1110 # and is not configured to handle mixed ELF and COFF.
0036370f 1111 noconfigdirs="$noconfigdirs ld target-libgloss"
6599da04 1112 ;;
f2a0e225 1113 i[[3456789]]86-*-sco*)
0036370f 1114 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1115 ;;
fbdd5d87 1116 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
7c01b2b5 1117 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1118 ;;
f2a0e225 1119 i[[3456789]]86-*-sysv4*)
0036370f 1120 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1121 ;;
f2a0e225 1122 i[[3456789]]86-*-beos*)
6a789d5e 1123 noconfigdirs="$noconfigdirs gdb"
3aa83176 1124 ;;
d1f8db0c 1125 i[[3456789]]86-*-rdos*)
6a789d5e 1126 noconfigdirs="$noconfigdirs gdb"
c03353e2 1127 ;;
d344dce9 1128 mmix-*-*)
2909494b 1129 noconfigdirs="$noconfigdirs gdb"
d344dce9 1130 ;;
ab34901f 1131 mt-*-*)
79dd769c
AH		 1132 noconfigdirs="$noconfigdirs sim"
1133 ;;
6599da04
JM		 1134 powerpc-*-aix*)
1135 # copied from rs6000-*-* entry
6a789d5e 1136 noconfigdirs="$noconfigdirs gprof"
6599da04 1137 ;;
4569f85e 1138 powerpc*-*-winnt* | powerpc*-*-pe*)
6599da04 1139 target_configdirs="$target_configdirs target-winsup"
0036370f 1140 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
6599da04
JM		 1141 # always build newlib.
1142 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1143 ;;
1144 # This is temporary until we can link against shared libraries
1145 powerpcle-*-solaris*)
0036370f 1146 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
6599da04 1147 ;;
0da3b5a7 1148 powerpc-*-beos*)
6a789d5e 1149 noconfigdirs="$noconfigdirs gdb"
d207ebef 1150 ;;
6599da04 1151 rs6000-*-lynxos*)
6a789d5e 1152 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1153 ;;
1154 rs6000-*-aix*)
6a789d5e 1155 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1156 ;;
1157 rs6000-*-*)
2909494b 1158 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1159 ;;
1160 m68k-apollo-*)
0036370f 1161 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
6599da04 1162 ;;
ca9fe997 1163 microblaze*)
2909494b 1164 noconfigdirs="$noconfigdirs gprof"
ca9fe997 1165 ;;
74ae587e 1166 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
d9dced13
RS		 1167 if test x$with_newlib = xyes; then
1168 noconfigdirs="$noconfigdirs gprof"
1169 fi
d9dced13 1170 ;;
6599da04 1171 mips*-*-irix5*)
0036370f 1172 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04
JM		 1173 ;;
1174 mips*-*-irix6*)
2909494b 1175 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1176 ;;
6599da04 1177 mips*-*-bsd*)
bc98bcc4 1178 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
6599da04 1179 ;;
9bec4bf0 1180 mips*-*-linux*)
9bec4bf0 1181 ;;
bc98bcc4
JBG		 1182 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1183 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1184 noconfigdirs="$noconfigdirs ld gas gprof"
1185 ;;
6599da04 1186 mips*-*-*)
2909494b 1187 noconfigdirs="$noconfigdirs gprof"
6599da04 1188 ;;
738f2522 1189 nvptx*-*-*)
738f2522
BS		 1190 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1191 ;;
74ae587e
JBG		 1192 or1k*-*-*)
1193 noconfigdirs="$noconfigdirs gdb"
1194 ;;
bc6d9014 1195 sh-*-*)
ea2002ba
CB		 1196 case "${target}" in
1197 sh*-*-elf)
2909494b 1198 ;;
ea2002ba 1199 *)
2909494b 1200 noconfigdirs="$noconfigdirs target-libgloss" ;;
ea2002ba 1201 esac
6599da04
JM		 1202 ;;
1203 sparc-*-sunos4*)
6a789d5e 1204 if test x${is_cross_compiler} = xno ; then
6599da04
JM		 1205 use_gnu_ld=no
1206 fi
1207 ;;
b42f0d7e 1208 tic6x-*-*)
0d557ff8 1209 noconfigdirs="$noconfigdirs sim"
b42f0d7e 1210 ;;
341c653c 1211 tilepro*-*-* | tilegx*-*-*)
db1d217c
WL		 1212 noconfigdirs="$noconfigdirs sim"
1213 ;;
6599da04 1214 v810-*-*)
0036370f 1215 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
6599da04
JM		 1216 ;;
1217 vax-*-*)
2909494b 1218 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1219 ;;
6599da04
JM		 1220esac
1221
6599da04
JM		 1222# If we aren't building newlib, then don't build libgloss, since libgloss
1223# depends upon some newlib header files.
1224case "${noconfigdirs}" in
1225 *target-libgloss*) ;;
1226 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
55380b08 1227esac
6599da04 1228
55380b08 1229# Work in distributions that contain no compiler tools, like Autoconf.
671aa708 1230host_makefile_frag=/dev/null
55380b08
NN		 1231if test -d ${srcdir}/config ; then
1232case "${host}" in
f2a0e225 1233 i[[3456789]]86-*-msdosdjgpp*)
55380b08
NN		 1234 host_makefile_frag="config/mh-djgpp"
1235 ;;
1236 *-cygwin*)
2a79c47f 1237 ACX_CHECK_CYGWIN_CAT_WORKS
55380b08
NN		 1238 host_makefile_frag="config/mh-cygwin"
1239 ;;
c53a18d3 1240 *-mingw*)
1f5a6b84 1241 host_makefile_frag="config/mh-mingw"
738a52d3 1242 ;;
cabb9d59 1243 alpha*-linux*)
13be44ed
UB		 1244 host_makefile_frag="config/mh-alpha-linux"
1245 ;;
00afcaa0 1246 hppa*-hp-hpux10*)
00afcaa0 1247 host_makefile_frag="config/mh-pa-hpux10"
55380b08 1248 ;;
111eeb6e 1249 hppa*-hp-hpux*)
00afcaa0
PB		 1250 host_makefile_frag="config/mh-pa"
1251 ;;
1252 hppa*-*)
1253 host_makefile_frag="config/mh-pa"
1254 ;;
d8ed14ce
IS		 1255 *-*-darwin*)
1256 host_makefile_frag="config/mh-darwin"
be8fff81 1257 ;;
d19bca38
PB		 1258 powerpc-*-aix*)
1259 host_makefile_frag="config/mh-ppc-aix"
1260 ;;
1261 rs6000-*-aix*)
1262 host_makefile_frag="config/mh-ppc-aix"
1263 ;;
55380b08
NN		 1264esac
1265fi
1266
e4c9c075 1267if test "${build}" != "${host}" ; then
0999159b
PB		 1268 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1269 AS_FOR_BUILD=${AS_FOR_BUILD-as}
e4c9c075 1270 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
0999159b 1271 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
0999159b 1272 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
632e2a07 1273 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
0999159b
PB		 1274 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1275 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1276 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1277 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1278 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1279 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
e4c9c075 1280else
0999159b
PB		 1281 AR_FOR_BUILD="\$(AR)"
1282 AS_FOR_BUILD="\$(AS)"
e4c9c075 1283 CC_FOR_BUILD="\$(CC)"
0999159b 1284 CXX_FOR_BUILD="\$(CXX)"
0999159b 1285 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
632e2a07 1286 GOC_FOR_BUILD="\$(GOC)"
0999159b
PB		 1287 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1288 LD_FOR_BUILD="\$(LD)"
1289 NM_FOR_BUILD="\$(NM)"
1290 RANLIB_FOR_BUILD="\$(RANLIB)"
1291 WINDRES_FOR_BUILD="\$(WINDRES)"
1292 WINDMC_FOR_BUILD="\$(WINDMC)"
c3a86da9 1293fi
e4c9c075 1294
c3a86da9
DJ		 1295AC_PROG_CC
1296AC_PROG_CXX
1297
1298# We must set the default linker to the linker used by gcc for the correct
1299# operation of libtool. If LD is not defined and we are using gcc, try to
1300# set the LD default to the ld used by gcc.
1301if test -z "$LD"; then
1302 if test "$GCC" = yes; then
1303 case $build in
1304 *-*-mingw*)
1305 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1306 *)
1307 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1308 esac
1309 case $gcc_prog_ld in
1310 # Accept absolute paths.
1311 [[\\/]* | [A-Za-z]:[\\/]*)]
1312 LD="$gcc_prog_ld" ;;
1313 esac
1314 fi
e4c9c075
PB		 1315fi
1316
0b21f5d3
EB		 1317# Check whether -static-libstdc++ -static-libgcc is supported.
1318have_static_libs=no
1319if test "$GCC" = yes; then
1320 saved_LDFLAGS="$LDFLAGS"
1321
1322 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1323 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1324 AC_LANG_PUSH(C++)
0d6414b2
EB		 1325 AC_LINK_IFELSE([
1326#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1327#error -static-libstdc++ not implemented
1328#endif
1329int main() {}],
0b21f5d3
EB		 1330 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1331 [AC_MSG_RESULT([no])])
1332 AC_LANG_POP(C++)
1333
1334 LDFLAGS="$saved_LDFLAGS"
1335fi
1336
e4c9c075 1337ACX_PROG_GNAT
a76494aa 1338ACX_PROG_CMP_IGNORE_INITIAL
e4c9c075 1339
ff3ac0f4
ILT		 1340AC_ARG_ENABLE([bootstrap],
1341[AS_HELP_STRING([--enable-bootstrap],
1342 [enable bootstrapping @<:@yes if native build@:>@])],,
1343enable_bootstrap=default)
1344
1345# Issue errors and warnings for invalid/strange bootstrap combinations.
bf03b9ff
ILT		 1346if test -r $srcdir/gcc/configure; then
1347 have_compiler=yes
1348else
1349 have_compiler=no
1350fi
ff3ac0f4
ILT		 1351
1352case "$have_compiler:$host:$target:$enable_bootstrap" in
1353 *:*:*:no) ;;
1354
1355 # Default behavior. Enable bootstrap if we have a compiler
1356 # and we are in a native configuration.
1357 yes:$build:$build:default)
1358 enable_bootstrap=yes ;;
1359
1360 *:*:*:default)
1361 enable_bootstrap=no ;;
1362
1363 # We have a compiler and we are in a native configuration, bootstrap is ok
1364 yes:$build:$build:yes)
1365 ;;
1366
1367 # Other configurations, but we have a compiler. Assume the user knows
1368 # what he's doing.
1369 yes:*:*:yes)
1370 AC_MSG_WARN([trying to bootstrap a cross compiler])
1371 ;;
1372
1373 # No compiler: if they passed --enable-bootstrap explicitly, fail
1374 no:*:*:yes)
1375 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1376
1377 # Fail if wrong command line
1378 *)
1379 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1380 ;;
1381esac
1382
46070488
JM		 1383# When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
1384# C++98 compiler can still start the bootstrap.
1385if test "$enable_bootstrap:$GXX" = "yes:yes"; then
8ca528d9 1386 CXX="$CXX -std=gnu++98"
46070488
JM		 1387fi
1388
592c90ff
KG		 1389# Used for setting $lt_cv_objdir
1390_LT_CHECK_OBJDIR
1391
acd26225 1392# Check for GMP, MPFR and MPC
3a5729ea 1393gmplibs="-lmpc -lmpfr -lgmp"
6de9cd9a 1394gmpinc=
e69bf64b 1395have_gmp=no
acd26225
KG		 1396
1397# Specify a location for mpc
1398# check for this first so it ends up on the link line before mpfr.
33e39b66
AS		 1399AC_ARG_WITH(mpc,
1400[AS_HELP_STRING([--with-mpc=PATH],
1401 [specify prefix directory for installed MPC package.
1402 Equivalent to --with-mpc-include=PATH/include
1403 plus --with-mpc-lib=PATH/lib])])
1404AC_ARG_WITH(mpc-include,
1405[AS_HELP_STRING([--with-mpc-include=PATH],
1406 [specify directory for installed MPC include files])])
1407AC_ARG_WITH(mpc-lib,
1408[AS_HELP_STRING([--with-mpc-lib=PATH],
1409 [specify directory for the installed MPC library])])
acd26225
KG		 1410
1411if test "x$with_mpc" != x; then
3a5729ea
KG		 1412 gmplibs="-L$with_mpc/lib $gmplibs"
1413 gmpinc="-I$with_mpc/include $gmpinc"
acd26225
KG		 1414fi
1415if test "x$with_mpc_include" != x; then
3a5729ea 1416 gmpinc="-I$with_mpc_include $gmpinc"
acd26225
KG		 1417fi
1418if test "x$with_mpc_lib" != x; then
3a5729ea 1419 gmplibs="-L$with_mpc_lib $gmplibs"
acd26225
KG		 1420fi
1421if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
592c90ff 1422 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
3a5729ea 1423 gmpinc='-I$$s/mpc/src '"$gmpinc"
acd26225
KG		 1424 # Do not test the mpc version. Assume that it is sufficient, since
1425 # it is in the source tree, and the library has not been built yet
1426 # but it would be included on the link line in the version check below
1427 # hence making the test fail.
3a5729ea 1428 have_gmp=yes
acd26225 1429fi
e69bf64b 1430
bebf829d
PB		 1431# Specify a location for mpfr
1432# check for this first so it ends up on the link line before gmp.
33e39b66
AS		 1433AC_ARG_WITH(mpfr-dir,
1434[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1435[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1436Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1437
1438AC_ARG_WITH(mpfr,
1439[AS_HELP_STRING([--with-mpfr=PATH],
1440 [specify prefix directory for installed MPFR package.
1441 Equivalent to --with-mpfr-include=PATH/include
1442 plus --with-mpfr-lib=PATH/lib])])
1443AC_ARG_WITH(mpfr-include,
1444[AS_HELP_STRING([--with-mpfr-include=PATH],
1445 [specify directory for installed MPFR include files])])
1446AC_ARG_WITH(mpfr-lib,
1447[AS_HELP_STRING([--with-mpfr-lib=PATH],
1448 [specify directory for the installed MPFR library])])
bebf829d
PB		 1449
1450if test "x$with_mpfr" != x; then
1451 gmplibs="-L$with_mpfr/lib $gmplibs"
3a5729ea 1452 gmpinc="-I$with_mpfr/include $gmpinc"
bebf829d 1453fi
8a877c9c 1454if test "x$with_mpfr_include" != x; then
3a5729ea 1455 gmpinc="-I$with_mpfr_include $gmpinc"
8a877c9c
KG		 1456fi
1457if test "x$with_mpfr_lib" != x; then
1458 gmplibs="-L$with_mpfr_lib $gmplibs"
1459fi
e69bf64b 1460if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
8f3675f8
MR		 1461 # MPFR v3.1.0 moved the sources into a src sub-directory.
1462 if ! test -d ${srcdir}/mpfr/src; then
1463 AC_MSG_ERROR([dnl
1464Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1465 fi
00f35794
BE		 1466 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1467 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1468 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
e69bf64b
PB		 1469 # Do not test the mpfr version. Assume that it is sufficient, since
1470 # it is in the source tree, and the library has not been built yet
1471 # but it would be included on the link line in the version check below
1472 # hence making the test fail.
1473 have_gmp=yes
1474fi
bebf829d 1475
6de9cd9a 1476# Specify a location for gmp
33e39b66
AS		 1477AC_ARG_WITH(gmp-dir,
1478[AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1479[AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1480Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1481
1482AC_ARG_WITH(gmp,
1483[AS_HELP_STRING([--with-gmp=PATH],
1484 [specify prefix directory for the installed GMP package.
1485 Equivalent to --with-gmp-include=PATH/include
1486 plus --with-gmp-lib=PATH/lib])])
1487AC_ARG_WITH(gmp-include,
1488[AS_HELP_STRING([--with-gmp-include=PATH],
1489 [specify directory for installed GMP include files])])
1490AC_ARG_WITH(gmp-lib,
1491[AS_HELP_STRING([--with-gmp-lib=PATH],
1492 [specify directory for the installed GMP library])])
6de9cd9a 1493
6de9cd9a 1494
bebf829d
PB		 1495if test "x$with_gmp" != x; then
1496 gmplibs="-L$with_gmp/lib $gmplibs"
1497 gmpinc="-I$with_gmp/include $gmpinc"
6de9cd9a 1498fi
8a877c9c
KG		 1499if test "x$with_gmp_include" != x; then
1500 gmpinc="-I$with_gmp_include $gmpinc"
1501fi
1502if test "x$with_gmp_lib" != x; then
1503 gmplibs="-L$with_gmp_lib $gmplibs"
1504fi
e69bf64b 1505if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
592c90ff 1506 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
e69bf64b 1507 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
9183bdcf 1508 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
592c90ff 1509 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
0ff2d841 1510 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
e69bf64b
PB		 1511 # Do not test the gmp version. Assume that it is sufficient, since
1512 # it is in the source tree, and the library has not been built yet
1513 # but it would be included on the link line in the version check below
1514 # hence making the test fail.
1515 have_gmp=yes
1516fi
6de9cd9a 1517
d943d7c4 1518if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
e69bf64b
PB		 1519 have_gmp=yes
1520 saved_CFLAGS="$CFLAGS"
1521 CFLAGS="$CFLAGS $gmpinc"
362c6d2f
KG		 1522 # Check for the recommended and required versions of GMP.
1523 AC_MSG_CHECKING([for the correct version of gmp.h])
e69bf64b 1524 AC_TRY_COMPILE([#include "gmp.h"],[
362c6d2f
KG		 1525 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1526 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
385c0681 1527 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
e48d66a9 1528 choke me
e69bf64b 1529 #endif
e8fd69bb 1530 ], [AC_TRY_COMPILE([#include <gmp.h>],[
362c6d2f
KG		 1531 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1532 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1533 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1534 choke me
1535 #endif
e8fd69bb 1536 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1537 [AC_MSG_RESULT([no]); have_gmp=no])
e69bf64b 1538
acd26225 1539 # If we have GMP, check the MPFR version.
e69bf64b 1540 if test x"$have_gmp" = xyes; then
362c6d2f
KG		 1541 # Check for the recommended and required versions of MPFR.
1542 AC_MSG_CHECKING([for the correct version of mpfr.h])
acd26225 1543 AC_TRY_COMPILE([#include <gmp.h>
e69bf64b 1544 #include <mpfr.h>],[
f7d6bc01 1545 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
e69bf64b
PB		 1546 choke me
1547 #endif
e8fd69bb 1548 ], [AC_TRY_COMPILE([#include <gmp.h>
acd26225 1549 #include <mpfr.h>],[
362c6d2f 1550 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
acd26225
KG		 1551 choke me
1552 #endif
e8fd69bb 1553 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
acd26225
KG		 1554 [AC_MSG_RESULT([no]); have_gmp=no])
1555 fi
1556
1557 # Check for the MPC header version.
3a5729ea 1558 if test x"$have_gmp" = xyes ; then
362c6d2f 1559 # Check for the recommended and required versions of MPC.
acd26225
KG		 1560 AC_MSG_CHECKING([for the correct version of mpc.h])
1561 AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f 1562 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
acd26225
KG		 1563 choke me
1564 #endif
e8fd69bb 1565 ], [AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f
KG		 1566 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1567 choke me
1568 #endif
e8fd69bb 1569 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1570 [AC_MSG_RESULT([no]); have_gmp=no])
acd26225
KG		 1571 fi
1572
1573 # Now check the MPFR library.
1574 if test x"$have_gmp" = xyes; then
1575 saved_LIBS="$LIBS"
1576 LIBS="$LIBS $gmplibs"
3a5729ea
KG		 1577 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1578 AC_TRY_LINK([#include <mpc.h>],[
54e433bc
MK		 1579 mpfr_t n;
1580 mpfr_t x;
3a5729ea 1581 mpc_t c;
e69bf64b 1582 int t;
54e433bc
MK		 1583 mpfr_init (n);
1584 mpfr_init (x);
e69bf64b
PB		 1585 mpfr_atan2 (n, n, x, GMP_RNDN);
1586 mpfr_erfc (n, x, GMP_RNDN);
1587 mpfr_subnormalize (x, t, GMP_RNDN);
3a5729ea
KG		 1588 mpfr_clear(n);
1589 mpfr_clear(x);
1590 mpc_init2 (c, 53);
1591 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1592 mpc_cosh (c, c, MPC_RNDNN);
1593 mpc_pow (c, c, c, MPC_RNDNN);
1594 mpc_acosh (c, c, MPC_RNDNN);
1595 mpc_clear (c);
acd26225
KG		 1596 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1597 LIBS="$saved_LIBS"
e69bf64b 1598 fi
acd26225 1599
e69bf64b 1600 CFLAGS="$saved_CFLAGS"
6de9cd9a 1601
362c6d2f
KG		 1602# The library versions listed in the error message below should match
1603# the HARD-minimums enforced above.
e69bf64b 1604 if test x$have_gmp != xyes; then
f7d6bc01 1605 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
3a5729ea
KG		 1606Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1607their locations. Source code for these libraries can be found at
1608their respective hosting sites as well as at
1609ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1610http://gcc.gnu.org/install/prerequisites.html for additional info. If
1611you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1612make sure that you have installed both the libraries and the header
1613files. They may be located in separate packages.])
e69bf64b 1614 fi
70ec446f
KG		 1615fi
1616
acd26225 1617# Flags needed for both GMP, MPFR and/or MPC.
6de9cd9a
DN		 1618AC_SUBST(gmplibs)
1619AC_SUBST(gmpinc)
9e3eba15 1620AC_SUBST(extra_mpfr_configure_flags)
acd26225
KG		 1621AC_SUBST(extra_mpc_gmp_configure_flags)
1622AC_SUBST(extra_mpc_mpfr_configure_flags)
0ff2d841 1623AC_SUBST(extra_isl_gmp_configure_flags)
6de9cd9a 1624
00020c16
ILT		 1625# Libraries to use for stage1 or when not bootstrapping.
1626AC_ARG_WITH(stage1-libs,
33e39b66 1627[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
00020c16
ILT		 1628[if test "$withval" = "no" -o "$withval" = "yes"; then
1629 stage1_libs=
1630 else
1631 stage1_libs=$withval
1632 fi],
5dc85f7e 1633[stage1_libs=])
00020c16
ILT		 1634AC_SUBST(stage1_libs)
1635
0b21f5d3
EB		 1636# Linker flags to use for stage1 or when not bootstrapping.
1637AC_ARG_WITH(stage1-ldflags,
1638[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1639[if test "$withval" = "no" -o "$withval" = "yes"; then
1640 stage1_ldflags=
1641 else
1642 stage1_ldflags=$withval
1643 fi],
1644[stage1_ldflags=
1645 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1646 # if supported. But if the user explicitly specified the libraries to use,
1647 # trust that they are doing what they want.
1648 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1649 stage1_ldflags="-static-libstdc++ -static-libgcc"
1650 fi])
1651AC_SUBST(stage1_ldflags)
1652
5dc85f7e 1653# Libraries to use for stage2 and later builds.
00020c16 1654AC_ARG_WITH(boot-libs,
33e39b66 1655[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
00020c16
ILT		 1656[if test "$withval" = "no" -o "$withval" = "yes"; then
1657 poststage1_libs=
1658 else
e90e6bd7 1659 poststage1_libs=$withval
00020c16 1660 fi],
5dc85f7e 1661[poststage1_libs=])
00020c16
ILT		 1662AC_SUBST(poststage1_libs)
1663
ed2eaa9f
ILT		 1664# Linker flags to use for stage2 and later builds.
1665AC_ARG_WITH(boot-ldflags,
33e39b66
AS		 1666[AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1667 [linker flags for stage2 and later])],
ed2eaa9f
ILT		 1668[if test "$withval" = "no" -o "$withval" = "yes"; then
1669 poststage1_ldflags=
1670 else
1671 poststage1_ldflags=$withval
1672 fi],
1673[poststage1_ldflags=
bec93d73
ILT		 1674 # In stages 2 and 3, default to linking libstdc++ and libgcc
1675 # statically. But if the user explicitly specified the libraries to
1676 # use, trust that they are doing what they want.
1677 if test "$poststage1_libs" = ""; then
ed2eaa9f
ILT		 1678 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1679 fi])
1680AC_SUBST(poststage1_ldflags)
1681
e357a5e0 1682# GCC GRAPHITE dependency isl.
4a9bb2aa 1683# Basic setup is inlined here, actual checks are in config/isl.m4
625afa23 1684
625afa23
RG		 1685AC_ARG_WITH(isl,
1686 [AS_HELP_STRING(
1687 [--with-isl=PATH],
e357a5e0 1688 [Specify prefix directory for the installed isl package.
625afa23
RG		 1689 Equivalent to --with-isl-include=PATH/include
1690 plus --with-isl-lib=PATH/lib])])
1691
eae1a5d4 1692# Treat --without-isl as a request to disable
625afa23 1693# GRAPHITE support and skip all following checks.
eae1a5d4 1694if test "x$with_isl" != "xno"; then
e357a5e0 1695 # Check for isl
625afa23
RG		 1696 dnl Provide configure switches and initialize islinc & isllibs
1697 dnl with user input.
1698 ISL_INIT_FLAGS
e357a5e0 1699 dnl The versions of isl that work for Graphite
e0c0c325 1700 ISL_CHECK_VERSION()
e357a5e0 1701 dnl Only execute fail-action, if isl has been requested.
33ad93b9 1702 ISL_IF_FAILED([
e357a5e0 1703 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
f8bf9252 1704fi
f8bf9252 1705
e357a5e0 1706# If the isl check failed, disable builds of in-tree variant of isl
625afa23 1707if test "x$with_isl" = xno ||
625afa23 1708 test "x$gcc_cv_isl" = xno; then
4a9bb2aa 1709 noconfigdirs="$noconfigdirs isl"
625afa23 1710 islinc=
eae1a5d4
RG		 1711fi
1712
1713AC_SUBST(isllibs)
625afa23 1714AC_SUBST(islinc)
625afa23 1715
d7f09764
DN		 1716# Check for LTO support.
1717AC_ARG_ENABLE(lto,
33e39b66 1718[AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
d7f09764
DN		 1719enable_lto=$enableval,
1720enable_lto=yes; default_enable_lto=yes)
1721
48215350
DK		 1722ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1723 build_lto_plugin=yes
1724],[if test x"$default_enable_lto" = x"yes" ; then
bb79486c 1725 case $target in
9e530bcd 1726 *-apple-darwin9* | *-cygwin* | *-mingw* | *djgpp*) ;;
48215350 1727 # On other non-ELF platforms, LTO has yet to be validated.
bb79486c
JH		 1728 *) enable_lto=no ;;
1729 esac
3bec79c5 1730 else
db50fe7d
IS		 1731 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1732 # It would also be nice to check the binutils support, but we don't
3bec79c5
DK		 1733 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1734 # warn during gcc/ subconfigure; unless you're bootstrapping with
1735 # -flto it won't be needed until after installation anyway.
1736 case $target in
9e530bcd 1737 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
3bec79c5
DK		 1738 *) if test x"$enable_lto" = x"yes"; then
1739 AC_MSG_ERROR([LTO support is not enabled for this target.])
1740 fi
1741 ;;
1742 esac
1743 fi
1cd0b716 1744 # Among non-ELF, only Windows platforms support the lto-plugin so far.
48215350 1745 # Build it unless LTO was explicitly disabled.
1cd0b716 1746 case $target in
48215350 1747 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1cd0b716
DK		 1748 *) ;;
1749 esac
48215350 1750])
d7f09764 1751
45b3824d
TS		 1752AC_ARG_ENABLE(linker-plugin-configure-flags,
1753 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1754 [additional flags for configuring linker plugins @<:@none@:>@])],
1755 extra_linker_plugin_configure_flags=$enableval,
1756 extra_linker_plugin_configure_flags=)
1757AC_SUBST(extra_linker_plugin_configure_flags)
1758AC_ARG_ENABLE(linker-plugin-flags,
1759 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1760 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1761 extra_linker_plugin_flags=$enableval,
1762 extra_linker_plugin_flags=)
1763AC_SUBST(extra_linker_plugin_flags)
1764
f8bf9252 1765
0823efed 1766# By default, C and C++ are the only stage 1 languages.
e1888513 1767stage1_languages=,c,
2805b53a 1768
00020c16 1769# Target libraries that we bootstrap.
ad1e5170 1770bootstrap_target_libs=,target-libgcc,
00020c16 1771
e4c9c075
PB		 1772# Figure out what language subdirectories are present.
1773# Look if the user specified --enable-languages="..."; if not, use
1774# the environment variable $LANGUAGES if defined. $LANGUAGES might
1775# go away some day.
1776# NB: embedded tabs in this IF block -- do not untabify
1777if test -d ${srcdir}/gcc; then
1778 if test x"${enable_languages+set}" != xset; then
1779 if test x"${LANGUAGES+set}" = xset; then
1780 enable_languages="${LANGUAGES}"
6b1786aa 1781 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
e4c9c075
PB		 1782 else
1783 enable_languages=all
1784 fi
1785 else
1786 if test x"${enable_languages}" = x ||
1787 test x"${enable_languages}" = xyes;
1788 then
6b1786aa 1789 echo configure.ac: --enable-languages needs at least one language argument 1>&2
e4c9c075
PB		 1790 exit 1
1791 fi
1792 fi
1793 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1794
7f26dfa3
FXC		 1795 # 'f95' is the old name for the 'fortran' language. We issue a warning
1796 # and make the substitution.
1797 case ,${enable_languages}, in
1798 *,f95,*)
6b1786aa 1799 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
7f26dfa3
FXC		 1800 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1801 ;;
1802 esac
1803
0823efed
DN		 1804 # If bootstrapping, C++ must be enabled.
1805 case ",$enable_languages,:$enable_bootstrap" in
1806 *,c++,*:*) ;;
1807 *:yes)
ff3ac0f4
ILT		 1808 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1809 enable_languages="${enable_languages},c++"
1810 else
0823efed 1811 AC_MSG_ERROR([bootstrapping requires c++ sources])
ff3ac0f4
ILT		 1812 fi
1813 ;;
1814 esac
1815
e4c9c075
PB		 1816 # First scan to see if an enabled language requires some other language.
1817 # We assume that a given config-lang.in will list all the language
1818 # front ends it requires, even if some are required indirectly.
1819 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1820 case ${lang_frag} in
1821 ..) ;;
1822 # The odd quoting in the next line works around
1823 # an apparent bug in bash 1.12 on linux.
1824 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1825 *)
69ecd18f
ILT		 1826 # From the config-lang.in, get $language, $lang_requires, and
1827 # $lang_requires_boot_languages.
e4c9c075
PB		 1828 language=
1829 lang_requires=
69ecd18f 1830 lang_requires_boot_languages=
e4c9c075 1831 . ${lang_frag}
69ecd18f 1832 for other in ${lang_requires} ${lang_requires_boot_languages}; do
e4c9c075
PB		 1833 case ,${enable_languages}, in
1834 *,$other,*) ;;
1835 *,all,*) ;;
1836 *,$language,*)
1837 echo " \`$other' language required by \`$language'; enabling" 1>&2
1838 enable_languages="${enable_languages},${other}"
1839 ;;
1840 esac
1841 done
69ecd18f
ILT		 1842 for other in ${lang_requires_boot_languages} ; do
1843 if test "$other" != "c"; then
1844 case ,${enable_stage1_languages}, in
1845 *,$other,*) ;;
1846 *,all,*) ;;
1847 *)
1848 case ,${enable_languages}, in
1849 *,$language,*)
1850 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1851 enable_stage1_languages="$enable_stage1_languages,${other}"
1852 ;;
1853 esac
1854 ;;
1855 esac
1856 fi
1857 done
e4c9c075
PB		 1858 ;;
1859 esac
1860 done
1861
e1888513 1862 new_enable_languages=,c,
d7f09764
DN		 1863
1864 # If LTO is enabled, add the LTO front end.
d7f09764 1865 if test "$enable_lto" = "yes" ; then
e4c5bd48
RW		 1866 case ,${enable_languages}, in
1867 *,lto,*) ;;
1868 *) enable_languages="${enable_languages},lto" ;;
1869 esac
1cd0b716 1870 if test "${build_lto_plugin}" = "yes" ; then
d7f09764 1871 configdirs="$configdirs lto-plugin"
d7f09764
DN		 1872 fi
1873 fi
d7f09764 1874
426c1eb0
TS		 1875 # If we're building an offloading compiler, add the LTO front end.
1876 if test x"$enable_as_accelerator_for" != x ; then
1877 case ,${enable_languages}, in
1878 *,lto,*) ;;
1879 *) enable_languages="${enable_languages},lto" ;;
1880 esac
1881 fi
1882
e4c9c075 1883 missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
e1888513 1884 potential_languages=,c,
e4c9c075 1885
4da3b0f8
ILT		 1886 enabled_target_libs=
1887 disabled_target_libs=
1888
e4c9c075
PB		 1889 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1890 case ${lang_frag} in
1891 ..) ;;
1892 # The odd quoting in the next line works around
1893 # an apparent bug in bash 1.12 on linux.
1894 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1895 *)
1896 # From the config-lang.in, get $language, $target_libs,
2805b53a 1897 # $lang_dirs, $boot_language, and $build_by_default
e4c9c075
PB		 1898 language=
1899 target_libs=
1900 lang_dirs=
1546bb64 1901 subdir_requires=
e1888513
PB		 1902 boot_language=no
1903 build_by_default=yes
e4c9c075 1904 . ${lang_frag}
e1888513
PB		 1905 if test x${language} = x; then
1906 echo "${lang_frag} doesn't set \$language." 1>&2
1907 exit 1
1908 fi
1909
78767fd9 1910 if test "$language" = "c++"; then
0823efed 1911 boot_language=yes
00020c16
ILT		 1912 fi
1913
178f875a 1914 add_this_lang=no
e1888513
PB		 1915 case ,${enable_languages}, in
1916 *,${language},*)
d4a10d0a
SB		 1917 # Language was explicitly selected; include it
1918 # unless it is C, which is enabled by default.
1919 if test "$language" != "c"; then
1920 add_this_lang=yes
1921 fi
e4c9c075 1922 ;;
e1888513
PB		 1923 *,all,*)
1924 # 'all' was selected, select it if it is a default language
178f875a
JM		 1925 if test "$language" != "c"; then
1926 add_this_lang=${build_by_default}
1927 fi
e4c9c075
PB		 1928 ;;
1929 esac
6de9cd9a 1930
1546bb64 1931 # Disable languages that need other directories if these aren't available.
95695ad3 1932 for i in $subdir_requires; do
b6348cb3 1933 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1546bb64
PB		 1934 case ,${enable_languages}, in
1935 *,${language},*)
1936 # Specifically requested language; tell them.
1937 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1938 ;;
1939 *)
1940 # Silently disable.
e1888513 1941 add_this_lang=unsupported
1546bb64
PB		 1942 ;;
1943 esac
1944 done
1945
e1888513
PB		 1946 # Disable Ada if no preexisting GNAT is available.
1947 case ,${enable_languages},:${language}:${have_gnat} in
1948 *,${language},*:ada:no)
1949 # Specifically requested language; tell them.
1950 AC_MSG_ERROR([GNAT is required to build $language])
1951 ;;
1952 *:ada:no)
1953 # Silently disable.
1954 add_this_lang=unsupported
1955 ;;
1956 esac
1957
4fab7234
HPN		 1958 # Disable a language that is unsupported by the target.
1959 case " $unsupported_languages " in
1960 *" $language "*)
e1888513 1961 add_this_lang=unsupported
4fab7234
HPN		 1962 ;;
1963 esac
1964
6de9cd9a 1965 case $add_this_lang in
e1888513 1966 unsupported)
e4c9c075 1967 # Remove language-dependent dirs.
4da3b0f8
ILT		 1968 disabled_target_libs="$disabled_target_libs $target_libs"
1969 noconfigdirs="$noconfigdirs $lang_dirs"
2805b53a 1970 ;;
e1888513
PB		 1971 no)
1972 # Remove language-dependent dirs; still show language as supported.
4da3b0f8
ILT		 1973 disabled_target_libs="$disabled_target_libs $target_libs"
1974 noconfigdirs="$noconfigdirs $lang_dirs"
e1888513
PB		 1975 potential_languages="${potential_languages}${language},"
1976 ;;
1977 yes)
1978 new_enable_languages="${new_enable_languages}${language},"
1979 potential_languages="${potential_languages}${language},"
2805b53a 1980 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
4da3b0f8 1981 enabled_target_libs="$enabled_target_libs $target_libs"
ab9dcd0c
RW		 1982 case "${boot_language}:,$enable_stage1_languages," in
1983 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
340de83f 1984 # Add to (comma-separated) list of stage 1 languages.
ab9dcd0c
RW		 1985 case ",$stage1_languages," in
1986 *,$language,* | ,yes, | ,all,) ;;
1987 *) stage1_languages="${stage1_languages}${language}," ;;
1988 esac
00020c16
ILT		 1989 # We need to bootstrap any supporting libraries.
1990 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2805b53a
NN		 1991 ;;
1992 esac
1993 ;;
e4c9c075
PB		 1994 esac
1995 ;;
1996 esac
1997 done
1998
4da3b0f8
ILT		 1999 # Add target libraries which are only needed for disabled languages
2000 # to noconfigdirs.
2001 if test -n "$disabled_target_libs"; then
2002 for dir in $disabled_target_libs; do
2003 case " $enabled_target_libs " in
2004 *" ${dir} "*) ;;
2005 *) noconfigdirs="$noconfigdirs $dir" ;;
2006 esac
2007 done
2008 fi
2009
e1888513 2010 AC_ARG_ENABLE(stage1-languages,
33e39b66
AS		 2011 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2012 [choose additional languages to build during
2013 stage1. Mostly useful for compiler development])],
e1888513
PB		 2014 [case ,${enable_stage1_languages}, in
2015 ,no,|,,)
2016 # Set it to something that will have no effect in the loop below
2017 enable_stage1_languages=c ;;
2018 ,yes,)
2019 enable_stage1_languages=`echo $new_enable_languages | \
2020 sed -e "s/^,//" -e "s/,$//" ` ;;
2021 *,all,*)
2022 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2023 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2024 esac
2025
2026 # Add "good" languages from enable_stage1_languages to stage1_languages,
2027 # while "bad" languages go in missing_languages. Leave no duplicates.
2028 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2029 case $potential_languages in
2030 *,$i,*)
2031 case $stage1_languages in
2032 *,$i,*) ;;
2033 *) stage1_languages="$stage1_languages$i," ;;
2034 esac ;;
2035 *)
2036 case $missing_languages in
2037 *,$i,*) ;;
2038 *) missing_languages="$missing_languages$i," ;;
2039 esac ;;
2040 esac
2041 done])
2042
2043 # Remove leading/trailing commas that were added for simplicity
2044 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
79b4b7d2 2045 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
e1888513
PB		 2046 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2047 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2048
e4c9c075
PB		 2049 if test "x$missing_languages" != x; then
2050 AC_MSG_ERROR([
0cf085e4 2051The following requested languages could not be built: ${missing_languages}
e1888513 2052Supported languages are: ${potential_languages}])
e4c9c075 2053 fi
e4c9c075
PB		 2054 if test "x$new_enable_languages" != "x$enable_languages"; then
2055 echo The following languages will be built: ${new_enable_languages}
e1888513 2056 enable_languages="$new_enable_languages"
e4c9c075 2057 fi
e1888513
PB		 2058
2059 AC_SUBST(stage1_languages)
b2eaac4a 2060 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
e4c9c075
PB		 2061fi
2062
27079765
AH		 2063# Handle --disable-<component> generically.
2064for dir in $configdirs $build_configdirs $target_configdirs ; do
2065 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
ac9e6043
RW		 2066 varname=`echo $dirname | sed -e s/+/_/g`
2067 if eval test x\${enable_${varname}} "=" xno ; then
27079765
AH		 2068 noconfigdirs="$noconfigdirs $dir"
2069 fi
2070done
2071
43c40f3e
RO		 2072# Check for Boehm's garbage collector
2073AC_ARG_ENABLE(objc-gc,
2074[AS_HELP_STRING([--enable-objc-gc],
2075 [enable use of Boehm's garbage collector with the
114bf3f1
MK		 2076 GNU Objective-C runtime])])
2077AC_ARG_WITH([target-bdw-gc],
2078[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2079 [specify prefix directory for installed bdw-gc package.
2080 Equivalent to --with-target-bdw-gc-include=PATH/include
2081 plus --with-target-bdw-gc-lib=PATH/lib])])
2082AC_ARG_WITH([target-bdw-gc-include],
2083[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2084 [specify directories for installed bdw-gc include files])])
2085AC_ARG_WITH([target-bdw-gc-lib],
2086[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2087 [specify directories for installed bdw-gc library])])
2088
2089case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2090 AC_MSG_CHECKING([for bdw garbage collector])
2091 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
825fba52
MK		 2092 dnl no bdw-gw options, assume default locations
2093 AC_MSG_RESULT([using bdw-gc in default locations])
114bf3f1
MK		 2094 else
2095 dnl bdw-gw options, first error checking, complete checking in libobjc
2096 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2097 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2098 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2099 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2100 else
2101 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2102 fi
2103 fi
43c40f3e
RO		 2104esac
2105
5f520819 2106# Disable libcilkrts, libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
99776ebd 2107case ,${enable_languages}, in
1007a55c
JW		 2108 *,c++,*)
2109 # Disable libcilkrts, libitm, libsanitizer if we're not building libstdc++
2110 case "${noconfigdirs}" in
2111 *target-libstdc++-v3*)
2112 noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer"
2113 ;;
2114 *) ;;
2115 esac
2116 ;;
99776ebd 2117 *)
5f520819 2118 noconfigdirs="$noconfigdirs target-libcilkrts target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
99776ebd
RH		 2119 ;;
2120esac
7cd0cf9c 2121
9d069a4f
PB		 2122# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2123# $build_configdirs and $target_configdirs.
e4c9c075
PB		 2124# If we have the source for $noconfigdirs entries, add them to $notsupp.
2125
2126notsupp=""
2127for dir in . $skipdirs $noconfigdirs ; do
9d069a4f 2128 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
e4c9c075
PB		 2129 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2130 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2131 if test -r $srcdir/$dirname/configure ; then
2132 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2133 true
2134 else
2135 notsupp="$notsupp $dir"
2136 fi
2137 fi
2138 fi
9d069a4f
PB		 2139 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2140 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2141 if test -r $srcdir/$dirname/configure ; then
2142 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2143 true
2144 else
2145 notsupp="$notsupp $dir"
2146 fi
2147 fi
2148 fi
e4c9c075
PB		 2149 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2150 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2151 if test -r $srcdir/$dirname/configure ; then
2152 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2153 true
2154 else
2155 notsupp="$notsupp $dir"
2156 fi
2157 fi
2158 fi
2159done
2160
e4c9c075
PB		 2161# Quietly strip out all directories which aren't configurable in this tree.
2162# This relies on all configurable subdirectories being autoconfiscated, which
2163# is now the case.
23f6b2f9
PB		 2164build_configdirs_all="$build_configdirs"
2165build_configdirs=
2166for i in ${build_configdirs_all} ; do
2167 j=`echo $i | sed -e s/build-//g`
2168 if test -f ${srcdir}/$j/configure ; then
2169 build_configdirs="${build_configdirs} $i"
2170 fi
2171done
2172
e4c9c075
PB		 2173configdirs_all="$configdirs"
2174configdirs=
2175for i in ${configdirs_all} ; do
2176 if test -f ${srcdir}/$i/configure ; then
2177 configdirs="${configdirs} $i"
2178 fi
2179done
23f6b2f9 2180
e4c9c075
PB		 2181target_configdirs_all="$target_configdirs"
2182target_configdirs=
2183for i in ${target_configdirs_all} ; do
2184 j=`echo $i | sed -e s/target-//g`
2185 if test -f ${srcdir}/$j/configure ; then
2186 target_configdirs="${target_configdirs} $i"
2187 fi
2188done
2189
45b3824d
TS		 2190# libiberty-linker-plugin is special: it doesn't have its own source directory,
2191# so we have to add it after the preceding checks.
2192if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2193then
2194 case " $configdirs " in
2195 *" libiberty "*)
2196 # If we can build libiberty, we can also build libiberty-linker-plugin.
2197 configdirs="$configdirs libiberty-linker-plugin"
2198 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2199 --with-libiberty=../libiberty-linker-plugin";;
2200 *)
2201 AC_MSG_ERROR([libiberty missing]);;
2202 esac
2203fi
2204
fca38047
TS		 2205# Sometimes we have special requirements for the host libiberty.
2206extra_host_libiberty_configure_flags=
1c01ebf6 2207extra_host_zlib_configure_flags=
fca38047
TS		 2208case " $configdirs " in
2209 *" lto-plugin "* | *" libcc1 "*)
2210 # When these are to be built as shared libraries, the same applies to
2211 # libiberty.
2212 extra_host_libiberty_configure_flags=--enable-shared
2213 ;;
1c01ebf6
L		 2214 *" bfd "*)
2215 # When bfd is to be built as a shared library, the same applies to
2216 # zlib.
2217 if test "$enable_shared" = "yes"; then
2218 extra_host_zlib_configure_flags=--enable-host-shared
2219 fi
2220 ;;
fca38047
TS		 2221esac
2222AC_SUBST(extra_host_libiberty_configure_flags)
1c01ebf6 2223AC_SUBST(extra_host_zlib_configure_flags)
fca38047 2224
e4c9c075
PB		 2225# Produce a warning message for the subdirs we can't configure.
2226# This isn't especially interesting in the Cygnus tree, but in the individual
2227# FSF releases, it's important to let people know when their machine isn't
2228# supported by the one or two programs in a package.
2229
2230if test -n "${notsupp}" && test -z "${norecursion}" ; then
2231 # If $appdirs is non-empty, at least one of those directories must still
2232 # be configured, or we error out. (E.g., if the gas release supports a
2233 # specified target in some subdirs but not the gas subdir, we shouldn't
2234 # pretend that all is well.)
2235 if test -n "$appdirs" ; then
2236 for dir in $appdirs ; do
2237 if test -r $dir/Makefile.in ; then
2238 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2239 appdirs=""
2240 break
2241 fi
23f6b2f9 2242 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
e4c9c075
PB		 2243 appdirs=""
2244 break
2245 fi
2246 fi
2247 done
2248 if test -n "$appdirs" ; then
2249 echo "*** This configuration is not supported by this package." 1>&2
2250 exit 1
2251 fi
2252 fi
2253 # Okay, some application will build, or we don't care to check. Still
2254 # notify of subdirs not getting built.
2255 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2256 echo " ${notsupp}" 1>&2
2257 echo " (Any other directories should still work fine.)" 1>&2
2258fi
2259
2260case "$host" in
2261 *msdosdjgpp*)
2262 enable_gdbtk=no ;;
2263esac
2264
c3a86da9
DJ		 2265# To find our prefix, in gcc_cv_tool_prefix.
2266ACX_TOOL_DIRS
2267
e4c9c075
PB		 2268copy_dirs=
2269
526635cb 2270AC_ARG_WITH([build-sysroot],
33e39b66
AS		 2271 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2272 [use sysroot as the system root during the build])],
526635cb
MM		 2273 [if test x"$withval" != x ; then
2274 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2275 fi],
2276 [SYSROOT_CFLAGS_FOR_TARGET=])
2277AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2278
c8aea42c 2279AC_ARG_WITH([debug-prefix-map],
33e39b66
AS		 2280 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2281 [map A to B, C to D ... in debug information])],
c8aea42c
PB		 2282 [if test x"$withval" != x; then
2283 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2284 for debug_map in $withval; do
2285 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2286 done
2287 fi],
2288 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2289AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2290
1c8bd6a3
PB		 2291# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2292# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2293# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2294# We want to ensure that TARGET libraries (which we know are built with
2295# gcc) are built with "-O2 -g", so include those options when setting
2296# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2297if test "x$CFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2298 if test "x${is_cross_compiler}" = xyes; then
2299 CFLAGS_FOR_TARGET="-g -O2"
2300 else
2301 CFLAGS_FOR_TARGET=$CFLAGS
2302 case " $CFLAGS " in
2303 *" -O2 "*) ;;
2304 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2305 esac
2306 case " $CFLAGS " in
2307 *" -g "* | *" -g3 "*) ;;
2308 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2309 esac
2310 fi
1c8bd6a3
PB		 2311fi
2312AC_SUBST(CFLAGS_FOR_TARGET)
2313
2314if test "x$CXXFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2315 if test "x${is_cross_compiler}" = xyes; then
2316 CXXFLAGS_FOR_TARGET="-g -O2"
2317 else
2318 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2319 case " $CXXFLAGS " in
2320 *" -O2 "*) ;;
2321 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2322 esac
2323 case " $CXXFLAGS " in
2324 *" -g "* | *" -g3 "*) ;;
2325 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2326 esac
2327 fi
1c8bd6a3
PB		 2328fi
2329AC_SUBST(CXXFLAGS_FOR_TARGET)
2330
6f57bdf6
DK		 2331AC_SUBST(LDFLAGS_FOR_TARGET)
2332
e4c9c075
PB		 2333# Handle --with-headers=XXX. If the value is not "yes", the contents of
2334# the named directory are copied to $(tooldir)/sys-include.
2335if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2336 if test x${is_cross_compiler} = xno ; then
2337 echo 1>&2 '***' --with-headers is only supported when cross compiling
2338 exit 1
2339 fi
2340 if test x"${with_headers}" != xyes ; then
c3a86da9 2341 x=${gcc_cv_tool_prefix}
1c710c3c 2342 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
e4c9c075
PB		 2343 fi
2344fi
2345
2346# Handle --with-libs=XXX. If the value is not "yes", the contents of
2347# the name directories are copied to $(tooldir)/lib. Multiple directories
2348# are permitted.
2349if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2350 if test x${is_cross_compiler} = xno ; then
2351 echo 1>&2 '***' --with-libs is only supported when cross compiling
2352 exit 1
2353 fi
2354 if test x"${with_libs}" != xyes ; then
2355 # Copy the libraries in reverse order, so that files in the first named
2356 # library override files in subsequent libraries.
c3a86da9 2357 x=${gcc_cv_tool_prefix}
e4c9c075 2358 for l in ${with_libs}; do
1c710c3c 2359 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
e4c9c075
PB		 2360 done
2361 fi
2362fi
2363
d7f09764 2364# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
e8b05380
PB		 2365#
2366# This is done by determining whether or not the appropriate directory
2367# is available, and by checking whether or not specific configurations
2368# have requested that this magic not happen.
2369#
2370# The command line options always override the explicit settings in
6b1786aa 2371# configure.ac, and the settings in configure.ac override this magic.
e8b05380
PB		 2372#
2373# If the default for a toolchain is to use GNU as and ld, and you don't
2374# want to do that, then you should use the --without-gnu-as and
d7f09764
DN		 2375# --without-gnu-ld options for the configure script. Similarly, if
2376# the default is to use the included zlib and you don't want to do that,
2377# you should use the --with-system-zlib option for the configure script.
e8b05380
PB		 2378
2379if test x${use_gnu_as} = x &&
2380 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2381 with_gnu_as=yes
2382 extra_host_args="$extra_host_args --with-gnu-as"
2383fi
2384
2385if test x${use_gnu_ld} = x &&
5afab7ad 2386 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
e8b05380
PB		 2387 with_gnu_ld=yes
2388 extra_host_args="$extra_host_args --with-gnu-ld"
2389fi
2390
d7f09764
DN		 2391if test x${use_included_zlib} = x &&
2392 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2393 :
2394else
2395 with_system_zlib=yes
2396 extra_host_args="$extra_host_args --with-system-zlib"
2397fi
2398
e8b05380
PB		 2399# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2400# can detect this case.
2401
2402if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2403 with_newlib=yes
2404 extra_host_args="$extra_host_args --with-newlib"
2405fi
2406
e4c9c075
PB		 2407# Handle ${copy_dirs}
2408set fnord ${copy_dirs}
2409shift
2410while test $# != 0 ; do
2411 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2412 :
2413 else
2414 echo Copying $1 to $2
2415
2416 # Use the install script to create the directory and all required
2417 # parent directories.
2418 if test -d $2 ; then
2419 :
2420 else
2421 echo >config.temp
2422 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2423 fi
2424
2425 # Copy the directory, assuming we have tar.
2426 # FIXME: Should we use B in the second tar? Not all systems support it.
2427 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2428
2429 # It is the responsibility of the user to correctly adjust all
2430 # symlinks. If somebody can figure out how to handle them correctly
2431 # here, feel free to add the code.
2432
2433 echo $1 > $2/COPIED
2434 fi
2435 shift; shift
2436done
2437
e8b05380
PB		 2438# Determine a target-dependent exec_prefix that the installed
2439# gcc will search in. Keep this list sorted by triplet, with
2440# the *-*-osname triplets last.
2441md_exec_prefix=
2442case "${target}" in
30b74385 2443 i[[34567]]86-pc-msdosdjgpp*)
e8b05380
PB		 2444 md_exec_prefix=/dev/env/DJDIR/bin
2445 ;;
e8b05380 2446 *-*-hpux* | \
e8b05380 2447 *-*-nto-qnx* | \
6de66370 2448 *-*-solaris2*)
e8b05380
PB		 2449 md_exec_prefix=/usr/ccs/bin
2450 ;;
2451esac
2452
4977bab6
ZW		 2453extra_arflags_for_target=
2454extra_nmflags_for_target=
2a726918 2455extra_ranlibflags_for_target=
671aa708 2456target_makefile_frag=/dev/null
55380b08 2457case "${target}" in
58e24147
AM		 2458 spu-*-*)
2459 target_makefile_frag="config/mt-spu"
2460 ;;
74ae587e 2461 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
4bf6c438
RS		 2462 target_makefile_frag="config/mt-sde"
2463 ;;
1ec3b87b
RS		 2464 mipsisa*-*-elfoabi*)
2465 target_makefile_frag="config/mt-mips-elfoabi"
2466 ;;
08d0963a
RS		 2467 mips*-*-*linux* | mips*-*-gnu*)
2468 target_makefile_frag="config/mt-mips-gnu"
2469 ;;
707f1839
SL		 2470 nios2-*-elf*)
2471 target_makefile_frag="config/mt-nios2-elf"
2472 ;;
416ac4d4 2473 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
98a5bb3b 2474 target_makefile_frag="config/mt-gnu"
55380b08 2475 ;;
671aa708 2476 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
4977bab6
ZW		 2477 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2478 # commands to handle both 32-bit and 64-bit objects. These flags are
2479 # harmless if we're using GNU nm or ar.
2480 extra_arflags_for_target=" -X32_64"
2481 extra_nmflags_for_target=" -B -X32_64"
55380b08 2482 ;;
c3b7d169
NN		 2483esac
2484
671aa708 2485alphaieee_frag=/dev/null
c3b7d169
NN		 2486case $target in
2487 alpha*-*-*)
2488 # This just makes sure to use the -mieee option to build target libs.
2489 # This should probably be set individually by each library.
2490 alphaieee_frag="config/mt-alphaieee"
55380b08
NN		 2491 ;;
2492esac
701afd4d 2493
55380b08
NN		 2494# If --enable-target-optspace always use -Os instead of -O2 to build
2495# the target libraries, similarly if it is not specified, use -Os
2496# on selected platforms.
671aa708 2497ospace_frag=/dev/null
55380b08
NN		 2498case "${enable_target_optspace}:${target}" in
2499 yes:*)
c3b7d169 2500 ospace_frag="config/mt-ospace"
55380b08
NN		 2501 ;;
2502 :d30v-*)
c3b7d169 2503 ospace_frag="config/mt-d30v"
55380b08 2504 ;;
d9063947 2505 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
c3b7d169 2506 ospace_frag="config/mt-ospace"
55380b08
NN		 2507 ;;
2508 no:* | :*)
2509 ;;
2510 *)
2511 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2512 ;;
2513esac
6599da04 2514
671aa708
NN		 2515# Some systems (e.g., one of the i386-aix systems the gas testers are
2516# using) don't handle "\$" correctly, so don't use it here.
1c710c3c 2517tooldir='${exec_prefix}'/${target_noncanonical}
671aa708
NN		 2518build_tooldir=${tooldir}
2519
671aa708
NN		 2520# Create a .gdbinit file which runs the one in srcdir
2521# and tells GDB to look there for source files.
2522
2523if test -r ${srcdir}/.gdbinit ; then
2524 case ${srcdir} in
2525 .) ;;
2526 *) cat > ./.gdbinit <<EOF
2527# ${NO_EDIT}
2528dir ${srcdir}
2529dir .
2530source ${srcdir}/.gdbinit
2531EOF
2532 ;;
2533 esac
2534fi
2535
6599da04
JM		 2536# Make sure that the compiler is able to generate an executable. If it
2537# can't, we are probably in trouble. We don't care whether we can run the
2538# executable--we might be using a cross compiler--we only care whether it
2539# can be created. At this point the main configure script has set CC.
aeaa0f2f 2540we_are_ok=no
6599da04
JM		 2541echo "int main () { return 0; }" > conftest.c
2542${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
aeaa0f2f
NN		 2543if test $? = 0 ; then
2544 if test -s conftest || test -s conftest.exe ; then
2545 we_are_ok=yes
2546 fi
2547fi
2548case $we_are_ok in
2549 no)
2550 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2551 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2552 rm -f conftest*
2553 exit 1
2554 ;;
2555esac
6599da04
JM		 2556rm -f conftest*
2557
d89f0ad6 2558# Decide which environment variable is used to find dynamic libraries.
fe3d5b7f
NN		 2559case "${host}" in
2560 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
111eeb6e 2561 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
d89f0ad6 2562 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
fe3d5b7f
NN		 2563 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2564esac
fe3d5b7f 2565
d89f0ad6
AL		 2566# On systems where the dynamic library environment variable is PATH,
2567# gcc/ will put dynamic libraries into a subdirectory to avoid adding
2568# built executables to PATH.
2569if test "$RPATH_ENVVAR" = PATH; then
2570 GCC_SHLIB_SUBDIR=/shlib
2571else
2572 GCC_SHLIB_SUBDIR=
2573fi
2574
beeda1d9
JJ		 2575# Adjust the toplevel makefile according to whether bootstrap was selected.
2576case $enable_bootstrap in
2577 yes)
2578 bootstrap_suffix=bootstrap
2579 BUILD_CONFIG=bootstrap-debug
2580 ;;
2581 no)
2582 bootstrap_suffix=no-bootstrap
2583 BUILD_CONFIG=
2584 ;;
2585esac
2586
2587AC_MSG_CHECKING(for default BUILD_CONFIG)
2588
2589AC_ARG_WITH([build-config],
2590 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2591 [use config/NAME.mk build configuration])],
2592 [case $with_build_config in
2593 yes) with_build_config= ;;
2594 no) with_build_config= BUILD_CONFIG= ;;
2595 esac])
2596
2597if test "x${with_build_config}" != x; then
2598 BUILD_CONFIG=$with_build_config
2599else
2600 case $BUILD_CONFIG in
2601 bootstrap-debug)
2602 if echo "int f (void) { return 0; }" > conftest.c &&
2603 ${CC} -c conftest.c &&
2604 mv conftest.o conftest.o.g0 &&
2605 ${CC} -c -g conftest.c &&
2606 mv conftest.o conftest.o.g &&
2607 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2608 :
2609 else
2610 BUILD_CONFIG=
2611 fi
2612 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2613 ;;
2614 esac
2615fi
2616AC_MSG_RESULT($BUILD_CONFIG)
2617AC_SUBST(BUILD_CONFIG)
2618
2619# Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2620AC_MSG_CHECKING([for --enable-vtable-verify])
2621AC_ARG_ENABLE(vtable-verify,
318a4e6d
MF		 2622[AS_HELP_STRING([--enable-vtable-verify],
2623 [Enable vtable verification feature])],
beeda1d9
JJ		 2624[case "$enableval" in
2625 yes) enable_vtable_verify=yes ;;
2626 no) enable_vtable_verify=no ;;
2627 *) enable_vtable_verify=no;;
2628 esac],
2629[enable_vtable_verify=no])
2630AC_MSG_RESULT($enable_vtable_verify)
2631
4977bab6
ZW		 2632# Record target_configdirs and the configure arguments for target and
2633# build configuration in Makefile.
2634target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
23f6b2f9 2635build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
9e1c8fc1 2636bootstrap_fixincludes=no
4977bab6 2637
ad1e5170
JR		 2638# If we are building libgomp, bootstrap it.
2639if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2640 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2641fi
2642
beeda1d9
JJ		 2643# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2644# or bootstrap-ubsan, bootstrap it.
2645if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2646 case "$BUILD_CONFIG" in
2647 *bootstrap-asan* | *bootstrap-ubsan* )
2648 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
9e1c8fc1 2649 bootstrap_fixincludes=yes
beeda1d9
JJ		 2650 ;;
2651 esac
ac8701fe
L		 2652fi
2653
beeda1d9
JJ		 2654# If we are building libvtv and --enable-vtable-verify, bootstrap it.
2655if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2656 test "$enable_vtable_verify" != no; then
2077db1b
CT		 2657 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2658fi
2659
c21fdaa1
JJ		 2660# If we are building libmpx and $BUILD_CONFIG contains bootstrap-mpx,
2661# bootstrap it.
5373cd33 2662if echo " ${target_configdirs} " | grep " libmpx " > /dev/null 2>&1; then
c21fdaa1
JJ		 2663 case "$BUILD_CONFIG" in
2664 *bootstrap-mpx* )
2665 bootstrap_target_libs=${bootstrap_target_libs}target-libmpx,
2666 ;;
2667 esac
5373cd33
IE		 2668fi
2669
4977bab6
ZW		 2670# Determine whether gdb needs tk/tcl or not.
2671# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2672# and in that case we want gdb to be built without tk. Ugh!
2673# In fact I believe gdb is the *only* package directly dependent on tk,
2674# so we should be able to put the 'maybe's in unconditionally and
2675# leave out the maybe dependencies when enable_gdbtk is false. I'm not
2676# 100% sure that that's safe though.
e914a571 2677
b4f96efe 2678gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
4977bab6
ZW		 2679case "$enable_gdbtk" in
2680 no)
2681 GDB_TK="" ;;
e914a571
AC		 2682 yes)
2683 GDB_TK="${gdb_tk}" ;;
4977bab6 2684 *)
e914a571
AC		 2685 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2686 # distro. Eventually someone will fix this and move Insight, nee
2687 # gdbtk to a separate directory.
2688 if test -d ${srcdir}/gdb/gdbtk ; then
2689 GDB_TK="${gdb_tk}"
2690 else
2691 GDB_TK=""
2692 fi
2693 ;;
4977bab6 2694esac
ef9db8d5
DJ		 2695CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2696INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
4977bab6 2697
60975492 2698# Strip out unwanted targets.
8b87bb96
NN		 2699
2700# While at that, we remove Makefiles if we were started for recursive
2701# configuration, so that the top-level Makefile reconfigures them,
2702# like we used to do when configure itself was recursive.
8b87bb96 2703
3e54529c
RW		 2704# Loop over modules. We used to use the "$extrasub" feature from Autoconf
2705# but now we're fixing up the Makefile ourselves with the additional
2706# commands passed to AC_CONFIG_FILES. Use separate variables
2707# extrasub-{build,host,target} not because there is any reason to split
2708# the substitutions up that way, but only to remain below the limit of
2709# 99 commands in a script, for HP-UX sed.
2710# Do not nest @if/@endif pairs, because configure will not warn you at all.
8b87bb96 2711
79cd2b23
RW		 2712case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2713 yes:yes:*\ gold\ *:*,c++,*) ;;
2714 yes:yes:*\ gold\ *:*)
2715 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2716 ;;
2717esac
2718
3e54529c 2719extrasub_build=
23f6b2f9 2720for module in ${build_configdirs} ; do
8b87bb96
NN		 2721 if test -z "${no_recursion}" \
2722 && test -f ${build_subdir}/${module}/Makefile; then
2723 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2724 rm -f ${build_subdir}/${module}/Makefile
2725 fi
3e54529c 2726 extrasub_build="$extrasub_build
60975492 2727/^@if build-$module\$/d
5607edfd
PB		 2728/^@endif build-$module\$/d
2729/^@if build-$module-$bootstrap_suffix\$/d
2730/^@endif build-$module-$bootstrap_suffix\$/d"
8b87bb96 2731done
3e54529c 2732extrasub_host=
8b87bb96 2733for module in ${configdirs} ; do
a6fbc1e2 2734 if test -z "${no_recursion}"; then
f063a9ed 2735 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
a6fbc1e2
AS		 2736 if test -f ${file}; then
2737 echo 1>&2 "*** removing ${file} to force reconfigure"
2738 rm -f ${file}
2739 fi
2740 done
8b87bb96 2741 fi
9e1c8fc1
JJ		 2742 case ${module},${bootstrap_fixincludes} in
2743 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2744 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2745 esac
3e54529c 2746 extrasub_host="$extrasub_host
60975492 2747/^@if $module\$/d
5607edfd 2748/^@endif $module\$/d
9e1c8fc1
JJ		 2749/^@if $module-$host_bootstrap_suffix\$/d
2750/^@endif $module-$host_bootstrap_suffix\$/d"
8b87bb96 2751done
3e54529c 2752extrasub_target=
8b87bb96
NN		 2753for module in ${target_configdirs} ; do
2754 if test -z "${no_recursion}" \
2755 && test -f ${target_subdir}/${module}/Makefile; then
2756 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2757 rm -f ${target_subdir}/${module}/Makefile
2758 fi
00020c16
ILT		 2759
2760 # We only bootstrap target libraries listed in bootstrap_target_libs.
2761 case $bootstrap_target_libs in
2762 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2763 *) target_bootstrap_suffix=no-bootstrap ;;
2764 esac
2765
3e54529c 2766 extrasub_target="$extrasub_target
60975492 2767/^@if target-$module\$/d
5607edfd 2768/^@endif target-$module\$/d
00020c16
ILT		 2769/^@if target-$module-$target_bootstrap_suffix\$/d
2770/^@endif target-$module-$target_bootstrap_suffix\$/d"
4977bab6 2771done
f516a7da 2772
3e54529c
RW		 2773# Do the final fixup along with target modules.
2774extrasub_target="$extrasub_target
60975492 2775/^@if /,/^@endif /d"
4977bab6
ZW		 2776
2777# Create the serialization dependencies. This uses a temporary file.
2778
ade82b16 2779AC_ARG_ENABLE([serial-configure],
33e39b66
AS		 2780[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2781 [force sequential configuration of
2782 sub-packages for the host, target or build
2783 machine, or all sub-packages])])
bf1d3e81
NN		 2784
2785case ${enable_serial_configure} in
2786 yes)
2787 enable_serial_build_configure=yes
2788 enable_serial_host_configure=yes
2789 enable_serial_target_configure=yes
2790 ;;
2791esac
ade82b16 2792
4977bab6
ZW		 2793# These force 'configure's to be done one at a time, to avoid problems
2794# with contention over a shared config.cache.
2795rm -f serdep.tmp
ade82b16 2796echo '# serdep.tmp' > serdep.tmp
4977bab6 2797olditem=
bf1d3e81 2798test "x${enable_serial_build_configure}" = xyes &&
4977bab6
ZW		 2799for item in ${build_configdirs} ; do
2800 case ${olditem} in
2801 "") ;;
ade82b16 2802 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2803 esac
2804 olditem=${item}
2805done
2806olditem=
bf1d3e81 2807test "x${enable_serial_host_configure}" = xyes &&
4977bab6
ZW		 2808for item in ${configdirs} ; do
2809 case ${olditem} in
2810 "") ;;
ade82b16 2811 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2812 esac
2813 olditem=${item}
2814done
2815olditem=
bf1d3e81 2816test "x${enable_serial_target_configure}" = xyes &&
4977bab6
ZW		 2817for item in ${target_configdirs} ; do
2818 case ${olditem} in
2819 "") ;;
ade82b16 2820 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2821 esac
2822 olditem=${item}
2823done
671aa708
NN		 2824serialization_dependencies=serdep.tmp
2825AC_SUBST_FILE(serialization_dependencies)
fe3d5b7f 2826
ade82b16 2827# Base args. Strip norecursion, cache-file, srcdir, host, build,
1c710c3c 2828# target, nonopt, and variable assignments. These are the ones we
f1a036e4
NC		 2829# might not want to pass down to subconfigures. The exception being
2830# --cache-file=/dev/null, which is used to turn off the use of cache
2831# files altogether, and which should be passed on to subconfigures.
2832# Also strip program-prefix, program-suffix, and program-transform-name,
2833# so that we can pass down a consistent program-transform-name.
1c710c3c 2834baseargs=
29a63921 2835tbaseargs=
1c710c3c
DJ		 2836keep_next=no
2837skip_next=no
2838eval "set -- $ac_configure_args"
44bfc3ac
DJ		 2839for ac_arg
2840do
1c710c3c
DJ		 2841 if test X"$skip_next" = X"yes"; then
2842 skip_next=no
2843 continue
2844 fi
2845 if test X"$keep_next" = X"yes"; then
2846 case $ac_arg in
2847 *\'*)
2848 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2849 esac
2850 baseargs="$baseargs '$ac_arg'"
29a63921 2851 tbaseargs="$tbaseargs '$ac_arg'"
1c710c3c
DJ		 2852 keep_next=no
2853 continue
2854 fi
2855
2856 # Handle separated arguments. Based on the logic generated by
2857 # autoconf 2.59.
2858 case $ac_arg in
2859 *=* | --config-cache | -C | -disable-* | --disable-* \
2860 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2861 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2862 | -with-* | --with-* | -without-* | --without-* | --x)
2863 separate_arg=no
2864 ;;
2865 -*)
2866 separate_arg=yes
2867 ;;
2868 *)
2869 separate_arg=no
2870 ;;
2871 esac
2872
29a63921
AO		 2873 skip_targ=no
2874 case $ac_arg in
2875changequote(,)
2876 --with-* | --without-*)
2877 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2878
2879 case $libopt in
2880 *[-_]include)
2881 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2882 ;;
2883 *[-_]lib)
2884 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2885 ;;
2886 *)
2887 lib=$libopt
2888 ;;
2889 esac
2890changequote([,])
2891
2892 case $lib in
4a9bb2aa 2893 mpc | mpfr | gmp | isl)
29a63921
AO		 2894 # If we're processing --with-$lib, --with-$lib-include or
2895 # --with-$lib-lib, for one of the libs above, and target is
2896 # different from host, don't pass the current argument to any
2897 # target library's configure.
2898 if test x$is_cross_compiler = xyes; then
2899 skip_targ=yes
2900 fi
2901 ;;
2902 esac
2903 ;;
2904 esac
2905
1c710c3c 2906 case "$ac_arg" in
f1a036e4
NC		 2907 --cache-file=/dev/null | \
2908 -cache-file=/dev/null )
2909 # Handled here to avoid the test to skip args below.
2910 baseargs="$baseargs '$ac_arg'"
29a63921 2911 tbaseargs="$tbaseargs '$ac_arg'"
f1a036e4
NC		 2912 # Assert: $separate_arg should always be no.
2913 keep_next=$separate_arg
2914 ;;
1c710c3c
DJ		 2915 --no*)
2916 continue
2917 ;;
2918 --c* | \
2919 --sr* | \
2920 --ho* | \
2921 --bu* | \
2922 --t* | \
2923 --program-* | \
2924 -cache_file* | \
2925 -srcdir* | \
2926 -host* | \
2927 -build* | \
2928 -target* | \
2929 -program-prefix* | \
2930 -program-suffix* | \
2931 -program-transform-name* )
2932 skip_next=$separate_arg
2933 continue
2934 ;;
2935 -*)
2936 # An option. Add it.
2937 case $ac_arg in
2938 *\'*)
2939 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2940 esac
2941 baseargs="$baseargs '$ac_arg'"
29a63921
AO		 2942 if test X"$skip_targ" = Xno; then
2943 tbaseargs="$tbaseargs '$ac_arg'"
2944 fi
1c710c3c
DJ		 2945 keep_next=$separate_arg
2946 ;;
2947 *)
2948 # Either a variable assignment, or a nonopt (triplet). Don't
2949 # pass it down; let the Makefile handle this.
2950 continue
2951 ;;
2952 esac
2953done
2954# Remove the initial space we just introduced and, as these will be
2955# expanded by make, quote '$'.
2956baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
6599da04 2957
43bb47c2
DJ		 2958# Add in --program-transform-name, after --program-prefix and
2959# --program-suffix have been applied to it. Autoconf has already
2960# doubled dollar signs and backslashes in program_transform_name; we want
2961# the backslashes un-doubled, and then the entire thing wrapped in single
2962# quotes, because this will be expanded first by make and then by the shell.
2963# Also, because we want to override the logic in subdir configure scripts to
2964# choose program_transform_name, replace any s,x,x, with s,y,y,.
2965sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2966${program_transform_name}
2967EOF_SED
2968gcc_transform_name=`cat conftestsed.out`
2969rm -f conftestsed.out
2970baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
29a63921 2971tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
d9acb717
RW		 2972if test "$silent" = yes; then
2973 baseargs="$baseargs --silent"
29a63921 2974 tbaseargs="$tbaseargs --silent"
d9acb717 2975fi
0115d4a3 2976baseargs="$baseargs --disable-option-checking"
29a63921 2977tbaseargs="$tbaseargs --disable-option-checking"
43bb47c2 2978
ffedf511
RW		 2979# Record and document user additions to sub configure arguments.
2980AC_ARG_VAR([build_configargs],
2981 [additional configure arguments for build directories])
2982AC_ARG_VAR([host_configargs],
2983 [additional configure arguments for host directories])
2984AC_ARG_VAR([target_configargs],
2985 [additional configure arguments for target directories])
2986
e490616e
ZW		 2987# For the build-side libraries, we just need to pretend we're native,
2988# and not use the same cache file. Multilibs are neither needed nor
3d96b0d0
HPN		 2989# desired. We can't even use the same cache file for all build-side
2990# libraries, as they're compiled differently; some with C, some with
2991# C++ or with different feature-enabling options.
2992build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
e254d6b5 2993
4977bab6
ZW		 2994# For host modules, accept cache file option, or specification as blank.
2995case "${cache_file}" in
2996"") # empty
2997 cache_file_option="" ;;
671aa708 2998/* | [[A-Za-z]]:[[\\/]]* ) # absolute path
4977bab6
ZW		 2999 cache_file_option="--cache-file=${cache_file}" ;;
3000*) # relative path
3001 cache_file_option="--cache-file=../${cache_file}" ;;
3002esac
3003
09438bde
NN		 3004# Host dirs don't like to share a cache file either, horribly enough.
3005# This seems to be due to autoconf 2.5x stupidity.
ffedf511 3006host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
4977bab6 3007
29a63921 3008target_configargs="$target_configargs ${tbaseargs}"
e490616e 3009
6599da04
JM		 3010# Passing a --with-cross-host argument lets the target libraries know
3011# whether they are being built with a cross-compiler or being built
3012# native. However, it would be better to use other mechanisms to make the
3013# sorts of decisions they want to make on this basis. Please consider
3014# this option to be deprecated. FIXME.
aeaa0f2f 3015if test x${is_cross_compiler} = xyes ; then
1c710c3c 3016 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
6599da04
JM		 3017fi
3018
79e0604d
FXC		 3019# Special user-friendly check for native x86_64-linux build, if
3020# multilib is not explicitly enabled.
3021case "$target:$have_compiler:$host:$target:$enable_multilib" in
3022 x86_64-*linux*:yes:$build:$build:)
e640447c 3023 # Make sure we have a development environment that handles 32-bit
79e0604d
FXC		 3024 dev64=no
3025 echo "int main () { return 0; }" > conftest.c
3026 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3027 if test $? = 0 ; then
3028 if test -s conftest || test -s conftest.exe ; then
3029 dev64=yes
3030 fi
3031 fi
3032 rm -f conftest*
3033 if test x${dev64} != xyes ; then
e640447c 3034 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		 3035 fi
3036 ;;
3037esac
3038
dc683a3f
RW		 3039# Default to --enable-multilib.
3040if test x${enable_multilib} = x ; then
3fedb745 3041 target_configargs="--enable-multilib ${target_configargs}"
dc683a3f 3042fi
6599da04 3043
5d4a5ee6
JL		 3044# Pass --with-newlib if appropriate. Note that target_configdirs has
3045# changed from the earlier setting of with_newlib.
aeaa0f2f 3046if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3fedb745 3047 target_configargs="--with-newlib ${target_configargs}"
5d4a5ee6
JL		 3048fi
3049
6b9eb62c
NN		 3050# Different target subdirs use different values of certain variables
3051# (notably CXX). Worse, multilibs use *lots* of different values.
3052# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3053# it doesn't automatically accept command-line overrides of them.
3054# This means it's not safe for target subdirs to share a cache file,
3055# which is disgusting, but there you have it. Hopefully this can be
3056# fixed in future. It's still worthwhile to use a cache file for each
3057# directory. I think.
3058
bebcd931
MS		 3059# Pass the appropriate --build, --host, --target and --cache-file arguments.
3060# We need to pass --target, as newer autoconf's requires consistency
3061# for target_alias and gcc doesn't manage it consistently.
e69bf64b 3062target_configargs="--cache-file=./config.cache ${target_configargs}"
e490616e 3063
b87487b6 3064FLAGS_FOR_TARGET=
bb654703 3065case " $target_configdirs " in
7965440a 3066 *" newlib "*)
3fedb745 3067 case " $target_configargs " in
7965440a 3068 *" --with-newlib "*)
b87487b6 3069 case "$target" in
5d571eaa 3070 *-cygwin*)
443e6238 3071 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
5d571eaa 3072 ;;
b87487b6
AO		 3073 esac
3074
afd7db25 3075 # If we're not building GCC, don't discard standard headers.
ef40bc65 3076 if test -d ${srcdir}/gcc; then
d4eb109c 3077 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
afd7db25
AO		 3078
3079 if test "${build}" != "${host}"; then
3080 # On Canadian crosses, CC_FOR_TARGET will have already been set
3081 # by `configure', so we won't have an opportunity to add -Bgcc/
3082 # to it. This is right: we don't want to search that directory
3083 # for binaries, but we want the header files in there, so add
3084 # them explicitly.
0463992b 3085 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
afd7db25
AO		 3086
3087 # Someone might think of using the pre-installed headers on
3088 # Canadian crosses, in case the installed compiler is not fully
3089 # compatible with the compiler being built. In this case, it
3090 # would be better to flag an error than risking having
3091 # incompatible object files being constructed. We can't
3092 # guarantee that an error will be flagged, but let's hope the
3093 # compiler will do it, when presented with incompatible header
3094 # files.
3095 fi
d4eb109c
AO		 3096 fi
3097
ab50d72b 3098 case "${target}-${is_cross_compiler}" in
f2a0e225 3099 i[[3456789]]86-*-linux*-no)
ab50d72b
DD		 3100 # Here host == target, so we don't need to build gcc,
3101 # so we don't want to discard standard headers.
3102 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
ab50d72b
DD		 3103 ;;
3104 *)
3105 # If we're building newlib, use its generic headers last, but search
3106 # for any libc-related directories first (so make it the last -B
3107 # switch).
3108 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
c03353e2
RIL		 3109
3110 # If we're building libgloss, find the startup file, simulator library
3111 # and linker script.
3112 case " $target_configdirs " in
3113 *" libgloss "*)
3114 # Look for startup file, simulator library and maybe linker script.
3115 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3116 # Look for libnosys.a in case the target needs it.
3117 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3118 # Most targets have the linker script in the source directory.
3119 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3120 ;;
3121 esac
ab50d72b
DD		 3122 ;;
3123 esac
b87487b6 3124 ;;
7965440a
AO		 3125 esac
3126 ;;
b87487b6 3127esac
5d571eaa 3128
b91f0a41 3129case "$target" in
5d571eaa
OS		 3130 x86_64-*mingw* | *-w64-mingw*)
3131 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3132 # however, use a symlink named 'mingw' in ${prefix} .
3133 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3134 ;;
3135 *-mingw*)
3136 # MinGW can't be handled as Cygwin above since it does not use newlib.
3137 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3138 ;;
b91f0a41 3139esac
d4eb109c 3140
6691a79e
ME		 3141# Allow the user to override the flags for
3142# our build compiler if desired.
f019adc1
MF		 3143if test x"${build}" = x"${host}" ; then
3144 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3145 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3146 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3147fi
6691a79e 3148
d4eb109c
AO		 3149# On Canadian crosses, we'll be searching the right directories for
3150# the previously-installed cross compiler, so don't bother to add
3151# flags for directories within the install tree of the compiler
3152# being built; programs in there won't even run.
ef40bc65 3153if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
b87487b6 3154 # Search for pre-installed headers if nothing else fits.
9124bc53 3155 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
b87487b6 3156fi
d4eb109c 3157
bb654703 3158if test "x${use_gnu_ld}" = x &&
55380b08 3159 echo " ${configdirs} " | grep " ld " > /dev/null ; then
b87487b6 3160 # Arrange for us to find uninstalled linker scripts.
215c351a 3161 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
b87487b6
AO		 3162fi
3163
e88a2c09
DD		 3164# Search for other target-specific linker scripts and such.
3165case "${target}" in
3e19841a
PB		 3166 mep*)
3167 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3168 ;;
e88a2c09
DD		 3169esac
3170
671aa708 3171# Makefile fragments.
7b61653a
PE		 3172for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3173do
3174 eval fragval=\$$frag
3175 if test $fragval != /dev/null; then
3176 eval $frag=${srcdir}/$fragval
3177 fi
3178done
671aa708
NN		 3179AC_SUBST_FILE(host_makefile_frag)
3180AC_SUBST_FILE(target_makefile_frag)
3181AC_SUBST_FILE(alphaieee_frag)
3182AC_SUBST_FILE(ospace_frag)
3183
3184# Miscellanea: directories, flags, etc.
671aa708 3185AC_SUBST(RPATH_ENVVAR)
d89f0ad6 3186AC_SUBST(GCC_SHLIB_SUBDIR)
671aa708
NN		 3187AC_SUBST(tooldir)
3188AC_SUBST(build_tooldir)
ef9db8d5 3189AC_SUBST(CONFIGURE_GDB_TK)
671aa708 3190AC_SUBST(GDB_TK)
ef9db8d5 3191AC_SUBST(INSTALL_GDB_TK)
671aa708
NN		 3192
3193# Build module lists & subconfigure args.
671aa708 3194AC_SUBST(build_configargs)
23f6b2f9 3195AC_SUBST(build_configdirs)
671aa708
NN		 3196
3197# Host module lists & subconfigure args.
3198AC_SUBST(host_configargs)
3199AC_SUBST(configdirs)
aae29963 3200AC_SUBST(target_configdirs)
671aa708
NN		 3201
3202# Target module lists & subconfigure args.
671aa708 3203AC_SUBST(target_configargs)
ee2312f3 3204
671aa708
NN		 3205
3206# Build tools.
0999159b
PB		 3207AC_SUBST(AR_FOR_BUILD)
3208AC_SUBST(AS_FOR_BUILD)
671aa708 3209AC_SUBST(CC_FOR_BUILD)
0999159b
PB		 3210AC_SUBST(CFLAGS_FOR_BUILD)
3211AC_SUBST(CXXFLAGS_FOR_BUILD)
3212AC_SUBST(CXX_FOR_BUILD)
3213AC_SUBST(DLLTOOL_FOR_BUILD)
0999159b 3214AC_SUBST(GFORTRAN_FOR_BUILD)
632e2a07 3215AC_SUBST(GOC_FOR_BUILD)
0999159b
PB		 3216AC_SUBST(LDFLAGS_FOR_BUILD)
3217AC_SUBST(LD_FOR_BUILD)
3218AC_SUBST(NM_FOR_BUILD)
3219AC_SUBST(RANLIB_FOR_BUILD)
3220AC_SUBST(WINDMC_FOR_BUILD)
3221AC_SUBST(WINDRES_FOR_BUILD)
671aa708 3222
2abefe3d
PB		 3223# Generate default definitions for YACC, M4, LEX and other programs that run
3224# on the build machine. These are used if the Makefile can't locate these
3225# programs in objdir.
3226MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3227
3228AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3229case " $build_configdirs " in
3230 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2abefe3d
PB		 3231esac
3232
3233AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3234case " $build_configdirs " in
3235 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3236esac
3237
3238AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3239case " $build_configdirs " in
3240 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3241esac
3242
3243AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3244case " $build_configdirs " in
3245 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3246 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3247esac
3248
3249AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3250case " $build_configdirs " in
3251 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3252esac
3253
3254AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3255case " $build_configdirs " in
3256 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3257 *)
3258changequote(,)
d18ff35a 3259 # For an installed makeinfo, we require it to be from texinfo 4.7 or
2abefe3d
PB		 3260 # higher, else we use the "missing" dummy.
3261 if ${MAKEINFO} --version \
d18ff35a 3262 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
2abefe3d
PB		 3263 :
3264 else
3265 MAKEINFO="$MISSING makeinfo"
3266 fi
3267 ;;
3268changequote([,])
3269esac
3270
3271# FIXME: expect and dejagnu may become build tools?
3272
3273AC_CHECK_PROGS(EXPECT, expect, expect)
3274case " $configdirs " in
3275 *" expect "*)
3276 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3277 ;;
3278esac
3279
3280AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3281case " $configdirs " in
3282 *" dejagnu "*)
c394e891 3283 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2abefe3d
PB		 3284 ;;
3285esac
3286
3287
671aa708 3288# Host tools.
2693c0b0
PB		 3289NCN_STRICT_CHECK_TOOLS(AR, ar)
3290NCN_STRICT_CHECK_TOOLS(AS, as)
3291NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3292NCN_STRICT_CHECK_TOOLS(LD, ld)
2abefe3d 3293NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2693c0b0 3294NCN_STRICT_CHECK_TOOLS(NM, nm)
8927b7c0
RO		 3295NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3296NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
2693c0b0 3297NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
901119ae 3298NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
2693c0b0
PB		 3299NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3300NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
e7a82751 3301NCN_STRICT_CHECK_TOOLS(READELF, readelf)
671aa708
NN		 3302AC_SUBST(CC)
3303AC_SUBST(CXX)
3304AC_SUBST(CFLAGS)
3305AC_SUBST(CXXFLAGS)
671aa708 3306
2abefe3d 3307# Target tools.
e8b05380 3308AC_ARG_WITH([build-time-tools],
33e39b66
AS		 3309 [AS_HELP_STRING([--with-build-time-tools=PATH],
3310 [use given path to find target tools during the build])],
e8b05380
PB		 3311 [case x"$withval" in
3312 x/*) ;;
3313 *)
3314 with_build_time_tools=
3315 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3316 ;;
3317 esac],
3318 [with_build_time_tools=])
3319
2693c0b0
PB		 3320NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3321NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2693c0b0 3322NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2693c0b0 3323NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
632e2a07 3324NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
e8b05380
PB		 3325
3326ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3327ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3328ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3329ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3330ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3331ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
9bccfdf5 3332ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
e8b05380 3333ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
8927b7c0 3334ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
e7a82751 3335ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
e8b05380
PB		 3336ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3337ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
901119ae 3338ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
4de997d1 3339
2abefe3d
PB		 3340RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3341
3342GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3343GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3344GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
b3f122e0 3345dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
2abefe3d 3346GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2077db1b 3347 [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		 3348 c++)
3349GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2077db1b 3350 [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		 3351 c++)
3352GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3353GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2abefe3d
PB		 3354GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3355 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
632e2a07
ILT		 3356GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3357 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
2abefe3d
PB		 3358GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3359GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3360GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
ec8fd1c0 3361GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
2abefe3d
PB		 3362GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3363GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
e7a82751 3364GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
455c8f48 3365GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
2abefe3d 3366GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
901119ae 3367GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
4de997d1 3368
2abefe3d 3369AC_SUBST(FLAGS_FOR_TARGET)
4de997d1 3370AC_SUBST(RAW_CXX_FOR_TARGET)
be912515 3371
671aa708
NN		 3372# Certain tools may need extra flags.
3373AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3374RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3375NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
6599da04 3376
2abefe3d
PB		 3377# When building target libraries, except in a Canadian cross, we use
3378# the same toolchain as the compiler we just built.
3379COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3380COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3381COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3382if test $host = $build; then
3383 case " $configdirs " in
3384 *" gcc "*)
3385 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3386 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3387 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3388 ;;
3389 esac
3390fi
3391
3392AC_SUBST(COMPILER_AS_FOR_TARGET)
3393AC_SUBST(COMPILER_LD_FOR_TARGET)
3394AC_SUBST(COMPILER_NM_FOR_TARGET)
3395
ee03dc5e
AO		 3396AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3397AC_ARG_ENABLE(maintainer-mode,
33e39b66
AS		 3398[AS_HELP_STRING([--enable-maintainer-mode],
3399 [enable make rules and dependencies not useful
3400 (and sometimes confusing) to the casual installer])],
ee03dc5e
AO		 3401 USE_MAINTAINER_MODE=$enableval,
3402 USE_MAINTAINER_MODE=no)
3403AC_MSG_RESULT($USE_MAINTAINER_MODE)
3404AC_SUBST(MAINTAINER_MODE_TRUE)
3405AC_SUBST(MAINTAINER_MODE_FALSE)
3406if test "$USE_MAINTAINER_MODE" = yes; then
3407 MAINTAINER_MODE_TRUE=
3408 MAINTAINER_MODE_FALSE='#'
3409else
3410 MAINTAINER_MODE_TRUE='#'
3411 MAINTAINER_MODE_FALSE=
3412fi
3413MAINT=$MAINTAINER_MODE_TRUE
3414AC_SUBST(MAINT)dnl
3415
2805b53a
NN		 3416# ---------------------
3417# GCC bootstrap support
3418# ---------------------
3419
3420# Stage specific cflags for build.
3421stage1_cflags="-g"
3422case $build in
3423 vax-*-*)
3424 case ${GCC} in
3425 yes) stage1_cflags="-g -Wa,-J" ;;
3426 *) stage1_cflags="-g -J" ;;
3427 esac ;;
2805b53a 3428esac
0b50988a 3429
2805b53a
NN		 3430AC_SUBST(stage1_cflags)
3431
8efea775
PB		 3432# Enable --enable-checking in stage1 of the compiler.
3433AC_ARG_ENABLE(stage1-checking,
33e39b66
AS		 3434[AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3435 [choose additional checking for stage1 of the compiler])],
8efea775 3436[stage1_checking=--enable-checking=${enable_stage1_checking}],
e643dc23 3437[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
c10b5ea0
JJ		 3438 # For --disable-checking or implicit --enable-checking=release, avoid
3439 # setting --enable-checking=gc in the default stage1 checking for LTO
3440 # bootstraps. See PR62077.
c10b5ea0
JJ		 3441 case $BUILD_CONFIG in
3442 *lto*)
7db11a5a
JJ		 3443 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3444 *)
3445 stage1_checking=--enable-checking=yes,types;;
c10b5ea0 3446 esac
7db11a5a
JJ		 3447 if test "x$enable_checking" = x && \
3448 test -d ${srcdir}/gcc && \
3449 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
c100769b 3450 stage1_checking=--enable-checking=yes,types,extra
7db11a5a 3451 fi
8efea775 3452else
e643dc23 3453 stage1_checking=--enable-checking=$enable_checking,types
8efea775
PB		 3454fi])
3455AC_SUBST(stage1_checking)
3456
2805b53a 3457# Enable -Werror in bootstrap stage2 and later.
2805b53a 3458AC_ARG_ENABLE(werror,
33e39b66
AS		 3459[AS_HELP_STRING([--enable-werror],
3460 [enable -Werror in bootstrap stage2 and later])], [],
416cfb5e 3461[if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
88fceb68
PB		 3462 enable_werror=yes
3463else
3464 enable_werror=no
3465fi])
09a9c095
NN		 3466case ${enable_werror} in
3467 yes) stage2_werror_flag="--enable-werror-always" ;;
3468 *) stage2_werror_flag="" ;;
2805b53a 3469esac
09a9c095 3470AC_SUBST(stage2_werror_flag)
2805b53a 3471
459260ec
DM		 3472# Enable --enable-host-shared.
3473AC_ARG_ENABLE(host-shared,
3474[AS_HELP_STRING([--enable-host-shared],
3475 [build host code as shared libraries])],
3476[host_shared=$enableval], [host_shared=no])
3477AC_SUBST(host_shared)
3478
231d020b
DM		 3479# PR jit/64780: Require the user to explicitly specify
3480# --enable-host-shared if the jit is enabled, hinting
3481# that they might want to do a separate configure/build of
3482# the jit, to avoid users from slowing down the rest of the
3483# compiler by enabling the jit.
3484if test ${host_shared} = "no" ; then
3485 case "${enable_languages}" in
3486 *jit*)
3487 AC_MSG_ERROR([
3488Enabling language "jit" requires --enable-host-shared.
3489
3490--enable-host-shared typically slows the rest of the compiler down by
3491a few %, so you must explicitly enable it.
3492
3493If you want to build both the jit and the regular compiler, it is often
3494best to do this via two separate configure/builds, in separate
3495directories, to avoid imposing the performance cost of
3496--enable-host-shared on the regular compiler.])
3497 ;;
3498 *)
3499 ;;
3500 esac
3501fi
3502
f2689b09
SE		 3503# Specify what files to not compare during bootstrap.
3504
3505compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3506case "$target" in
3507 hppa*64*-*-hpux*) ;;
3508 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
d7a29167 3509 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
f2689b09
SE		 3510esac
3511AC_SUBST(compare_exclusions)
3512
3e54529c
RW		 3513AC_CONFIG_FILES([Makefile],
3514 [sed "$extrasub_build" Makefile |
3515 sed "$extrasub_host" |
3516 sed "$extrasub_target" > mf$$
3517 mv -f mf$$ Makefile],
3518 [extrasub_build="$extrasub_build"
3519 extrasub_host="$extrasub_host"
3520 extrasub_target="$extrasub_target"])
3521AC_OUTPUT
Mirror of https://gcc.gnu.org/git/gcc.git