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beeaf216 1# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
ec8fd1c0 2# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
88252529 3# 2014, 2015, 2016, 2019, 2022 Free Software Foundation, Inc.
6599da04
JM		 4#
5# This file is free software; you can redistribute it and/or modify it
6# under the terms of the GNU General Public License as published by
309c24a9 7# the Free Software Foundation; either version 3 of the License, or
6599da04
JM		 8# (at your option) any later version.
9#
10# This program is distributed in the hope that it will be useful, but
11# WITHOUT ANY WARRANTY; without even the implied warranty of
12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13# General Public License for more details.
14#
15# You should have received a copy of the GNU General Public License
309c24a9
JJ		 16# along with this program; see the file COPYING3. If not see
17# <http://www.gnu.org/licenses/>.
6599da04
JM		 18
19##############################################################################
671aa708
NN		 20### WARNING: this file contains embedded tabs. Do not run untabify on this file.
21
7142fb32
PB		 22m4_include(config/acx.m4)
23m4_include(config/override.m4)
38d24731 24m4_include(config/proginstall.m4)
7413962d 25m4_include(config/elf.m4)
ffac9597 26m4_include(config/ax_cxx_compile_stdcxx.m4)
592c90ff
KG		 27m4_include([libtool.m4])
28m4_include([ltoptions.m4])
29m4_include([ltsugar.m4])
30m4_include([ltversion.m4])
31m4_include([lt~obsolete.m4])
33ad93b9 32m4_include([config/isl.m4])
ad6717df 33
671aa708 34AC_INIT(move-if-change)
0115d4a3 35AC_DISABLE_OPTION_CHECKING
1c710c3c 36
ad33ff57
RW		 37progname=$0
38# if PWD already has a value, it is probably wrong.
39if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
40
41# Export original configure arguments for use by sub-configures.
42# Quote arguments with shell meta charatcers.
43TOPLEVEL_CONFIGURE_ARGUMENTS=
44set -- "$progname" "$@"
45for ac_arg
46do
47 case "$ac_arg" in
48 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
49 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
50 # if the argument is of the form -foo=baz, quote the baz part only
51 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
52 *) ;;
53 esac
54 # Add the quoted argument to the list.
55 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
56done
57if test "$silent" = yes; then
58 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
59fi
60# Remove the initial space we just introduced and, as these will be
61# expanded by make, quote '$'.
62TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
63AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
64
1c710c3c
DJ		 65# Find the build, host, and target systems.
66ACX_NONCANONICAL_BUILD
67ACX_NONCANONICAL_HOST
68ACX_NONCANONICAL_TARGET
69
70dnl Autoconf 2.5x and later will set a default program prefix if
71dnl --target was used, even if it was the same as --host. Disable
72dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
73dnl to take effect.
74test "$host_noncanonical" = "$target_noncanonical" &&
75 test "$program_prefix$program_suffix$program_transform_name" = \
76 NONENONEs,x,x, &&
77 program_transform_name=s,y,y,
78
671aa708
NN		 79AC_CANONICAL_SYSTEM
80AC_ARG_PROGRAM
81
1c710c3c 82m4_pattern_allow([^AS_FOR_TARGET$])dnl
0999159b 83m4_pattern_allow([^AS_FOR_BUILD$])dnl
1c710c3c 84
775956d0
NN		 85# Get 'install' or 'install-sh' and its variants.
86AC_PROG_INSTALL
ad6717df 87ACX_PROG_LN
148907ea 88AC_PROG_LN_S
87264276
PB		 89AC_PROG_SED
90AC_PROG_AWK
775956d0 91
fc45f3fe
DJ		 92srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
93
94# We pass INSTALL explicitly to sub-makes. Make sure that it is not
95# a relative path.
96if test "$INSTALL" = "${srcdir}/install-sh -c"; then
97 INSTALL="${srcpwd}/install-sh -c"
98fi
99
671aa708
NN		 100# Set srcdir to "." if that's what it is.
101# This is important for multilib support.
102pwd=`${PWDCMD-pwd}`
671aa708
NN		 103if test "${pwd}" = "${srcpwd}" ; then
104 srcdir=.
105fi
106
107topsrcdir=$srcpwd
6599da04 108
4977bab6 109extra_host_args=
afabd8e6 110
6599da04
JM		 111### To add a new directory to the tree, first choose whether it is a target
112### or a host dependent tool. Then put it into the appropriate list
4977bab6
ZW		 113### (library or tools, host or target), doing a dependency sort.
114
115# Subdirs will be configured in the order listed in build_configdirs,
116# configdirs, or target_configdirs; see the serialization section below.
117
118# Dependency sorting is only needed when *configuration* must be done in
119# a particular order. In all cases a dependency should be specified in
120# the Makefile, whether or not it's implicitly specified here.
6599da04 121
4977bab6
ZW		 122# Double entries in build_configdirs, configdirs, or target_configdirs may
123# cause circular dependencies and break everything horribly.
6599da04 124
23f6b2f9
PB		 125# these library is used by various programs built for the build
126# environment
127#
929315a9 128build_libs="build-libiberty build-libcpp"
23f6b2f9
PB		 129
130# these tools are built for the build environment
85bfb75e 131build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
23f6b2f9 132
6599da04 133# these libraries are used by various programs built for the host environment
eae1a5d4 134#f
9d2d38a4 135host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libcody libdecnumber gmp mpfr mpc isl libiconv libctf"
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".
2efd8b1f 143host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gdbserver gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools c++tools"
5d4a5ee6 144
6599da04
JM		 145# these libraries are built for the target environment, and are built after
146# the host libraries and the host tools (which may be a cross compiler)
8499116a 147# Note that libiberty is not a target library.
291f172e 148target_libraries="target-libgcc \
eff02e4f 149 target-libbacktrace \
5d4a5ee6
JL		 150 target-libgloss \
151 target-newlib \
6d3b5aea 152 target-libgomp \
48310492 153 target-libatomic \
0a35513e 154 target-libitm \
cb543528 155 target-libstdc++-v3 \
f35db108 156 target-libsanitizer \
2077db1b 157 target-libvtv \
77008252 158 target-libssp \
1ec601bf 159 target-libquadmath \
6de9cd9a 160 target-libgfortran \
012447ea 161 target-libffi \
d9cdb878 162 target-libobjc \
632e2a07 163 target-libada \
b4c522fa 164 target-libgo \
bb50312e
IB		 165 target-libphobos \
166 target-zlib"
6599da04 167
4dbda6f0
NN		 168# these tools are built using the target libraries, and are intended to
169# run only in the target environment
6599da04 170#
4dbda6f0 171# note: any program that *uses* libraries that are in the "target_libraries"
1bcce263 172# list belongs in this list.
6599da04 173#
85bfb75e 174target_tools="target-rda"
6599da04
JM		 175
176################################################################################
177
6599da04
JM		 178## All tools belong in one of the four categories, and are assigned above
179## We assign ${configdirs} this way to remove all embedded newlines. This
180## is important because configure will choke if they ever get through.
181## ${configdirs} is directories we build using the host tools.
182## ${target_configdirs} is directories we build using the target tools.
6599da04 183configdirs=`echo ${host_libs} ${host_tools}`
4dbda6f0 184target_configdirs=`echo ${target_libraries} ${target_tools}`
71b5d516 185build_configdirs=`echo ${build_libs} ${build_tools}`
8b87bb96 186
ac9e6043 187m4_divert_text([PARSE_ARGS],
87841584
AM		 188[case $srcdir in
189 *" "*)
190m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
191 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
192m4_popdef([AS_MESSAGE_LOG_FD])dnl
193 ;;
194esac
195ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
ac9e6043
RW		 196])
197
6599da04
JM		 198################################################################################
199
6599da04
JM		 200srcname="gnu development package"
201
202# This gets set non-empty for some net releases of packages.
203appdirs=""
204
e1848dde
NN		 205# Define is_cross_compiler to save on calls to 'test'.
206is_cross_compiler=
207if test x"${host}" = x"${target}" ; then
208 is_cross_compiler=no
209else
210 is_cross_compiler=yes
211fi
212
b4acb5ef 213# Find the build and target subdir names.
8b87bb96 214GCC_TOPLEV_SUBDIRS
0db770bd
RW		 215# Be sure to cover against remnants of an in-tree build.
216if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
217 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
218Use a pristine source tree when building in a separate tree])
219fi
f653f0ab 220
55380b08
NN		 221# Skipdirs are removed silently.
222skipdirs=
223# Noconfigdirs are removed loudly.
224noconfigdirs=""
6599da04 225
55380b08
NN		 226use_gnu_ld=
227# Make sure we don't let GNU ld be added if we didn't want it.
228if test x$with_gnu_ld = xno ; then
229 use_gnu_ld=no
5afab7ad 230 noconfigdirs="$noconfigdirs ld gold"
6599da04
JM		 231fi
232
55380b08
NN		 233use_gnu_as=
234# Make sure we don't let GNU as be added if we didn't want it.
235if test x$with_gnu_as = xno ; then
236 use_gnu_as=no
237 noconfigdirs="$noconfigdirs gas"
6599da04
JM		 238fi
239
d7f09764 240use_included_zlib=
a05c2c75
L		 241AC_ARG_WITH(system-zlib,
242[AS_HELP_STRING([--with-system-zlib], [use installed libz])])
d7f09764
DN		 243# Make sure we don't let ZLIB be added if we didn't want it.
244if test x$with_system_zlib = xyes ; then
245 use_included_zlib=no
246 noconfigdirs="$noconfigdirs zlib"
247fi
248
36ba9851
ДП		 249# Don't compile the bundled readline/libreadline.a if --with-system-readline
250# is provided.
251if test x$with_system_readline = xyes ; then
252 noconfigdirs="$noconfigdirs readline"
253fi
254
55380b08
NN		 255# some tools are so dependent upon X11 that if we're not building with X,
256# it's not even worth trying to configure, much less build, that tool.
6599da04 257
55380b08
NN		 258case ${with_x} in
259 yes | "") ;; # the default value for this tree is that X11 is available
423ce3eb 260 no)
b4f96efe 261 skipdirs="${skipdirs} tk itcl libgui"
423ce3eb
NN		 262 # We won't be able to build gdbtk without X.
263 enable_gdbtk=no
264 ;;
55380b08
NN		 265 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
266esac
6599da04 267
1bcce263 268# Some are only suitable for cross toolchains.
95ddd785
NN		 269# Remove these if host=target.
270cross_only="target-libgloss target-newlib target-opcodes"
6599da04 271
55380b08
NN		 272case $is_cross_compiler in
273 no) skipdirs="${skipdirs} ${cross_only}" ;;
55380b08 274esac
6599da04 275
0c639b89
DD		 276# If both --with-headers and --with-libs are specified, default to
277# --without-newlib.
9082a750
MR		 278if test x"${with_headers}" != x && test x"${with_headers}" != xno \
279 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
0c639b89
DD		 280 if test x"${with_newlib}" = x ; then
281 with_newlib=no
282 fi
283fi
284
285# Recognize --with-newlib/--without-newlib.
286case ${with_newlib} in
287 no) skipdirs="${skipdirs} target-newlib" ;;
288 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
289esac
290
85c64bbe
BS		 291AC_ARG_ENABLE(as-accelerator-for,
292[AS_HELP_STRING([--enable-as-accelerator-for=ARG],
293 [build as offload target compiler.
4b4f2e35 294 Specify offload host triple by ARG])])
85c64bbe
BS		 295
296AC_ARG_ENABLE(offload-targets,
297[AS_HELP_STRING([--enable-offload-targets=LIST],
298 [enable offloading to devices from comma-separated LIST of
299 TARGET[=DIR]. Use optional path to find offload target compiler
300 during the build])],
301[
302 if test x"$enable_offload_targets" = x; then
303 AC_MSG_ERROR([no offload targets specified])
304 fi
305], [enable_offload_targets=])
306
fe5bfa67
TB		 307AC_ARG_ENABLE(offload-defaulted,
308[AS_HELP_STRING([--enable-offload-defaulted]
309 [If enabled, configured but not installed offload compilers and
310 libgomp plugins are silently ignored. Useful for distribution
311 compilers where those are in separate optional packages.])],
312[enable_offload_defaulted=$enableval],
313[enable_offload_defaulted=])
314
21539e2e
MK		 315# Handle --enable-gold, --enable-ld.
316# --disable-gold [--enable-ld]
317# Build only ld. Default option.
9580395f
L		 318# --enable-gold [--enable-ld]
319# Build both gold and ld. Install gold as "ld.gold", install ld
320# as "ld.bfd" and "ld".
321# --enable-gold=default [--enable-ld]
21539e2e
MK		 322# Build both gold and ld. Install gold as "ld.gold" and "ld",
323# install ld as "ld.bfd".
324# --enable-gold[=default] --disable-ld
325# Build only gold, which is then installed as both "ld.gold" and "ld".
326# --enable-gold --enable-ld=default
9580395f
L		 327# Build both gold (installed as "ld.gold") and ld (installed as "ld"
328# and ld.bfd).
21539e2e
MK		 329# In other words, ld is default
330# --enable-gold=default --enable-ld=default
331# Error.
332
333default_ld=
5afab7ad 334AC_ARG_ENABLE(gold,
33e39b66
AS		 335[AS_HELP_STRING([[--enable-gold[=ARG]]],
336 [build gold @<:@ARG={default,yes,no}@:>@])],
5afab7ad
ILT		 337ENABLE_GOLD=$enableval,
338ENABLE_GOLD=no)
21539e2e
MK		 339case "${ENABLE_GOLD}" in
340 yes|default)
38e3d868
RM		 341 # Check for ELF target.
342 is_elf=no
343 case "${target}" in
344 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
0e76460f 345 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
8c6d158a 346 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
ff4b7a7e 347 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
38e3d868
RM		 348 case "${target}" in
349 *-*-linux*aout* | *-*-linux*oldld*)
350 ;;
351 *)
352 is_elf=yes
353 ;;
354 esac
355 esac
356
357 if test "$is_elf" = "yes"; then
358 # Check for target supported by gold.
5afab7ad 359 case "${target}" in
7705dfd1 360 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
fc259b52 361 | aarch64*-*-* | mips*-*-* | s390*-*-* | loongarch*-*-*)
21539e2e
MK		 362 configdirs="$configdirs gold"
363 if test x${ENABLE_GOLD} = xdefault; then
364 default_ld=gold
365 fi
38e3d868 366 ENABLE_GOLD=yes
5afab7ad
ILT		 367 ;;
368 esac
38e3d868
RM		 369 fi
370 ;;
371 no)
372 ;;
373 *)
374 AC_MSG_ERROR([invalid --enable-gold argument])
375 ;;
21539e2e
MK		 376esac
377
378AC_ARG_ENABLE(ld,
33e39b66
AS		 379[AS_HELP_STRING([[--enable-ld[=ARG]]],
380 [build ld @<:@ARG={default,yes,no}@:>@])],
21539e2e
MK		 381ENABLE_LD=$enableval,
382ENABLE_LD=yes)
383
384case "${ENABLE_LD}" in
385 default)
9580395f 386 if test x${default_ld} != x; then
21539e2e
MK		 387 AC_MSG_ERROR([either gold or ld can be the default ld])
388 fi
389 ;;
390 yes)
391 ;;
392 no)
393 if test x${ENABLE_GOLD} != xyes; then
394 AC_MSG_WARN([neither ld nor gold are enabled])
395 fi
396 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
397 ;;
398 *)
399 AC_MSG_ERROR([invalid --enable-ld argument])
400 ;;
401esac
5afab7ad 402
78edb32f
L		 403# PR gas/19109
404# Decide the default method for compressing debug sections.
405# Provide a configure time option to override our default.
406AC_ARG_ENABLE(compressed_debug_sections,
324402a0 407[AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
78edb32f
L		 408 [Enable compressed debug sections for gas, gold or ld by
409 default])],
410[
411 if test x"$enable_compressed_debug_sections" = xyes; then
412 AC_MSG_ERROR([no program with compressed debug sections specified])
413 fi
414], [enable_compressed_debug_sections=])
415
6599da04
JM		 416# Configure extra directories which are host specific
417
418case "${host}" in
55380b08 419 *-cygwin*)
4977bab6 420 configdirs="$configdirs libtermcap" ;;
6599da04
JM		 421esac
422
4fab7234
HPN		 423# A target can indicate whether a language isn't supported for some reason.
424# Only spaces may be used in this macro; not newlines or tabs.
425unsupported_languages=
426
6599da04
JM		 427# Remove more programs from consideration, based on the host or
428# target this usually means that a port of the program doesn't
429# exist yet.
430
6599da04 431case "${host}" in
111eeb6e 432 i[[3456789]]86-*-msdosdjgpp*)
c9bdb152 433 noconfigdirs="$noconfigdirs tcl tk itcl"
5d4a5ee6 434 ;;
6599da04
JM		 435esac
436
6de9cd9a 437
87e6d9dc
TB		 438AC_ARG_ENABLE(libquadmath,
439AS_HELP_STRING([--disable-libquadmath],
440 [do not build libquadmath directory]),
441ENABLE_LIBQUADMATH=$enableval,
442ENABLE_LIBQUADMATH=yes)
443if test "${ENABLE_LIBQUADMATH}" = "no" ; then
444 noconfigdirs="$noconfigdirs target-libquadmath"
445fi
446
447
448AC_ARG_ENABLE(libquadmath-support,
449AS_HELP_STRING([--disable-libquadmath-support],
450 [disable libquadmath support for Fortran]),
451ENABLE_LIBQUADMATH_SUPPORT=$enableval,
452ENABLE_LIBQUADMATH_SUPPORT=yes)
453enable_libquadmath_support=
454if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
455 enable_libquadmath_support=no
456fi
457
458
d9cdb878 459AC_ARG_ENABLE(libada,
33e39b66 460[AS_HELP_STRING([--enable-libada], [build libada directory])],
d9cdb878
AC		 461ENABLE_LIBADA=$enableval,
462ENABLE_LIBADA=yes)
463if test "${ENABLE_LIBADA}" != "yes" ; then
5395b47b 464 noconfigdirs="$noconfigdirs gnattools"
d9cdb878
AC		 465fi
466
ef0087a7 467AC_ARG_ENABLE(libssp,
33e39b66 468[AS_HELP_STRING([--enable-libssp], [build libssp directory])],
ef0087a7
KH		 469ENABLE_LIBSSP=$enableval,
470ENABLE_LIBSSP=yes)
ef0087a7 471
2588b26e
RM		 472AC_ARG_ENABLE(libstdcxx,
473AS_HELP_STRING([--disable-libstdcxx],
474 [do not build libstdc++-v3 directory]),
475ENABLE_LIBSTDCXX=$enableval,
476ENABLE_LIBSTDCXX=default)
477[if test "${ENABLE_LIBSTDCXX}" = "no" ; then
1007a55c 478 noconfigdirs="$noconfigdirs target-libstdc++-v3"
2588b26e
RM		 479fi]
480
44a7d18d 481# Enable libgomp by default on hosted POSIX systems, and a few others.
27079765 482if test x$enable_libgomp = x ; then
953ff289 483 case "${target}" in
416ac4d4 484 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
953ff289 485 ;;
8c6d158a 486 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
953ff289 487 ;;
b24513a1 488 *-*-solaris2* | *-*-hpux11*)
953ff289 489 ;;
cac90078 490 *-*-darwin* | *-*-aix*)
953ff289 491 ;;
29b1533a 492 nvptx*-*-* | amdgcn*-*-*)
44a7d18d 493 ;;
953ff289
DN		 494 *)
495 noconfigdirs="$noconfigdirs target-libgomp"
496 ;;
497 esac
27079765 498fi
953ff289 499
48310492
RH		 500# Disable libatomic on unsupported systems.
501if test -d ${srcdir}/libatomic; then
502 if test x$enable_libatomic = x; then
503 AC_MSG_CHECKING([for libatomic support])
504 if (srcdir=${srcdir}/libatomic; \
505 . ${srcdir}/configure.tgt; \
506 test -n "$UNSUPPORTED")
507 then
508 AC_MSG_RESULT([no])
509 noconfigdirs="$noconfigdirs target-libatomic"
510 else
511 AC_MSG_RESULT([yes])
512 fi
513 fi
514fi
515
e948157d
RH		 516# Disable libitm on unsupported systems.
517if test -d ${srcdir}/libitm; then
518 if test x$enable_libitm = x; then
519 AC_MSG_CHECKING([for libitm support])
520 if (srcdir=${srcdir}/libitm; \
521 . ${srcdir}/configure.tgt; \
522 test -n "$UNSUPPORTED")
523 then
524 AC_MSG_RESULT([no])
525 noconfigdirs="$noconfigdirs target-libitm"
526 else
527 AC_MSG_RESULT([yes])
528 fi
529 fi
0a35513e
AH		 530fi
531
93bf5390
RH		 532# Disable libsanitizer on unsupported systems.
533if test -d ${srcdir}/libsanitizer; then
534 if test x$enable_libsanitizer = x; then
535 AC_MSG_CHECKING([for libsanitizer support])
536 if (srcdir=${srcdir}/libsanitizer; \
537 . ${srcdir}/configure.tgt; \
538 test -n "$UNSUPPORTED")
539 then
540 AC_MSG_RESULT([no])
541 noconfigdirs="$noconfigdirs target-libsanitizer"
542 else
543 AC_MSG_RESULT([yes])
544 fi
545 fi
546fi
547
2077db1b
CT		 548# Disable libvtv on unsupported systems.
549if test -d ${srcdir}/libvtv; then
550 if test x$enable_libvtv = x; then
551 AC_MSG_CHECKING([for libvtv support])
552 if (srcdir=${srcdir}/libvtv; \
553 . ${srcdir}/configure.tgt; \
1e74b850 554 test "$VTV_SUPPORTED" != "yes")
2077db1b
CT		 555 then
556 AC_MSG_RESULT([no])
557 noconfigdirs="$noconfigdirs target-libvtv"
558 else
559 AC_MSG_RESULT([yes])
560 fi
561 fi
562fi
563
d7a29167
DE		 564# Disable libquadmath for some systems.
565case "${target}" in
e7fae550
DE		 566 avr-*-*)
567 noconfigdirs="$noconfigdirs target-libquadmath"
568 ;;
d7a29167
DE		 569 # libquadmath is unused on AIX and libquadmath build process use of
570 # LD_LIBRARY_PATH can break AIX bootstrap.
571 powerpc-*-aix* | rs6000-*-aix*)
572 noconfigdirs="$noconfigdirs target-libquadmath"
573 ;;
574esac
575
1e9e0e23
JM		 576# Disable libssp for some systems.
577case "${target}" in
578 avr-*-*)
b318fb4b 579 # No hosted I/O support.
1e9e0e23
JM		 580 noconfigdirs="$noconfigdirs target-libssp"
581 ;;
91dfef96
JM		 582 bpf-*-*)
583 noconfigdirs="$noconfigdirs target-libssp"
584 ;;
1e9e0e23
JM		 585 powerpc-*-aix* | rs6000-*-aix*)
586 noconfigdirs="$noconfigdirs target-libssp"
587 ;;
8d2af3a2
DD		 588 pru-*-*)
589 # No hosted I/O support.
590 noconfigdirs="$noconfigdirs target-libssp"
591 ;;
85b8555e
DD		 592 rl78-*-*)
593 # libssp uses a misaligned load to trigger a fault, but the RL78
594 # doesn't fault for those - instead, it gives a build-time error
595 # for explicit misaligned loads.
596 noconfigdirs="$noconfigdirs target-libssp"
597 ;;
0969ec7d
EB		 598 visium-*-*)
599 # No hosted I/O support.
600 noconfigdirs="$noconfigdirs target-libssp"
601 ;;
1e9e0e23
JM		 602esac
603
1e9e0e23 604# Disable libstdc++-v3 for some systems.
67a1cb2a 605# Allow user to override this if they pass --enable-libstdcxx
2588b26e
RM		 606if test "${ENABLE_LIBSTDCXX}" = "default" ; then
607 case "${target}" in
608 *-*-vxworks*)
609 # VxWorks uses the Dinkumware C++ library.
610 noconfigdirs="$noconfigdirs target-libstdc++-v3"
611 ;;
afa3d80e
TS		 612 amdgcn*-*-*)
613 # Not ported/fails to build when using newlib.
614 noconfigdirs="$noconfigdirs target-libstdc++-v3"
615 ;;
2588b26e
RM		 616 arm*-wince-pe*)
617 # the C++ libraries don't build on top of CE's C libraries
618 noconfigdirs="$noconfigdirs target-libstdc++-v3"
619 ;;
620 avr-*-*)
621 noconfigdirs="$noconfigdirs target-libstdc++-v3"
622 ;;
91dfef96
JM		 623 bpf-*-*)
624 noconfigdirs="$noconfigdirs target-libstdc++-v3"
625 ;;
fef939d6
JB		 626 ft32-*-*)
627 noconfigdirs="$noconfigdirs target-libstdc++-v3"
628 ;;
2588b26e
RM		 629 esac
630fi
1e9e0e23 631
91dfef96
JM		 632# Disable C++ on systems where it is known to not work.
633# For testing, you can override this with --enable-languages=c++.
634case ,${enable_languages}, in
635 *,c++,*)
636 ;;
637 *)
638 case "${target}" in
639 bpf-*-*)
640 unsupported_languages="$unsupported_languages c++"
641 ;;
642 esac
643 ;;
644esac
645
646# Disable Objc on systems where it is known to not work.
647# For testing, you can override this with --enable-languages=objc.
648case ,${enable_languages}, in
649 *,objc,*)
650 ;;
651 *)
652 case "${target}" in
653 bpf-*-*)
654 unsupported_languages="$unsupported_languages objc"
655 ;;
656 esac
657 ;;
658esac
659
260eedb9
IB		 660# Disable D on systems where it is known to not work.
661# For testing, you can override this with --enable-languages=d.
662case ,${enable_languages}, in
663 *,d,*)
664 ;;
665 *)
666 case "${target}" in
91dfef96 667 bpf-*-*)
260eedb9
IB		 668 unsupported_languages="$unsupported_languages d"
669 ;;
670 esac
671 ;;
672esac
673
674# Disable libphobos on unsupported systems.
675# For testing, you can override this with --enable-libphobos.
676if test -d ${srcdir}/libphobos; then
677 if test x$enable_libphobos = x; then
678 AC_MSG_CHECKING([for libphobos support])
679 if (srcdir=${srcdir}/libphobos; \
680 . ${srcdir}/configure.tgt; \
7d31d331 681 test "$LIBPHOBOS_SUPPORTED" != "yes")
260eedb9
IB		 682 then
683 AC_MSG_RESULT([no])
684 noconfigdirs="$noconfigdirs target-libphobos"
685 else
686 AC_MSG_RESULT([yes])
687 fi
688 fi
689fi
690
1e9e0e23
JM		 691# Disable Fortran for some systems.
692case "${target}" in
693 mmix-*-*)
694 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
695 unsupported_languages="$unsupported_languages fortran"
696 ;;
91dfef96
JM		 697 bpf-*-*)
698 unsupported_languages="$unsupported_languages fortran"
699 ;;
1e9e0e23
JM		 700esac
701
012447ea
JJ		 702# Disable libffi for some systems.
703case "${target}" in
704 powerpc-*-darwin*)
705 ;;
706 i[[3456789]]86-*-darwin*)
707 ;;
708 x86_64-*-darwin[[912]]*)
709 ;;
710 *-*-darwin*)
711 noconfigdirs="$noconfigdirs target-libffi"
712 ;;
713 *-*-netware*)
714 noconfigdirs="$noconfigdirs target-libffi"
715 ;;
716 *-*-phoenix*)
717 noconfigdirs="$noconfigdirs target-libffi"
718 ;;
719 *-*-rtems*)
720 noconfigdirs="$noconfigdirs target-libffi"
721 ;;
722 *-*-tpf*)
723 noconfigdirs="$noconfigdirs target-libffi"
724 ;;
725 *-*-uclinux*)
726 noconfigdirs="$noconfigdirs target-libffi"
727 ;;
728 *-*-vxworks*)
729 noconfigdirs="$noconfigdirs target-libffi"
730 ;;
b20e7532
AT		 731 aarch64*-*-freebsd*)
732 noconfigdirs="$noconfigdirs target-libffi"
733 ;;
012447ea
JJ		 734 alpha*-*-*vms*)
735 noconfigdirs="$noconfigdirs target-libffi"
736 ;;
737 arm*-*-freebsd*)
738 noconfigdirs="$noconfigdirs target-libffi"
739 ;;
740 arm-wince-pe)
741 noconfigdirs="$noconfigdirs target-libffi"
742 ;;
743 arm*-*-symbianelf*)
744 noconfigdirs="$noconfigdirs target-libffi"
745 ;;
91dfef96
JM		 746 bpf-*-*)
747 noconfigdirs="$noconfigdirs target-libffi"
748 ;;
012447ea
JJ		 749 cris-*-* | crisv32-*-*)
750 case "${target}" in
751 *-*-linux*)
752 ;;
753 *) # See PR46792 regarding target-libffi.
754 noconfigdirs="$noconfigdirs target-libffi";;
755 esac
756 ;;
757 hppa*64*-*-hpux*)
758 noconfigdirs="$noconfigdirs target-libffi"
759 ;;
012447ea
JJ		 760 ia64*-*-*vms*)
761 noconfigdirs="$noconfigdirs target-libffi"
762 ;;
763 i[[3456789]]86-w64-mingw*)
764 noconfigdirs="$noconfigdirs target-libffi"
765 ;;
766 i[[3456789]]86-*-mingw*)
767 noconfigdirs="$noconfigdirs target-libffi"
768 ;;
769 x86_64-*-mingw*)
770 noconfigdirs="$noconfigdirs target-libffi"
771 ;;
772 mmix-*-*)
773 noconfigdirs="$noconfigdirs target-libffi"
774 ;;
775 powerpc-*-aix*)
012447ea
JJ		 776 ;;
777 rs6000-*-aix*)
012447ea
JJ		 778 ;;
779 ft32-*-*)
780 noconfigdirs="$noconfigdirs target-libffi"
781 ;;
782 *-*-lynxos*)
783 noconfigdirs="$noconfigdirs target-libffi"
784 ;;
785esac
786
787# Disable the go frontend on systems where it is known to not work. Please keep
788# this in sync with contrib/config-list.mk.
789case "${target}" in
91dfef96 790*-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
012447ea
JJ		 791 unsupported_languages="$unsupported_languages go"
792 ;;
793esac
794
f9d09df0
TT		 795# Only allow gdbserver on some systems.
796if test -d ${srcdir}/gdbserver; then
797 if test x$enable_gdbserver = x; then
798 AC_MSG_CHECKING([for gdbserver support])
799 if (srcdir=${srcdir}/gdbserver; \
800 . ${srcdir}/configure.srv; \
801 test -n "$UNSUPPORTED")
802 then
803 AC_MSG_RESULT([no])
804 noconfigdirs="$noconfigdirs gdbserver"
805 else
806 AC_MSG_RESULT([yes])
807 fi
808 fi
809fi
810
cdbc9e92
ILT		 811# Disable libgo for some systems where it is known to not work.
812# For testing, you can easily override this with --enable-libgo.
813if test x$enable_libgo = x; then
814 case "${target}" in
815 *-*-darwin*)
816 # PR 46986
817 noconfigdirs="$noconfigdirs target-libgo"
818 ;;
819 *-*-cygwin* | *-*-mingw*)
820 noconfigdirs="$noconfigdirs target-libgo"
821 ;;
91dfef96
JM		 822 bpf-*-*)
823 noconfigdirs="$noconfigdirs target-libgo"
824 ;;
cdbc9e92
ILT		 825 esac
826fi
827
c03353e2
RIL		 828# Default libgloss CPU subdirectory.
829libgloss_dir="$target_cpu"
6de9cd9a 830
fbcf0dca
JM		 831case "${target}" in
832 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
833 libgloss_dir=wince
834 ;;
4dddfc74
YZ		 835 aarch64*-*-* )
836 libgloss_dir=aarch64
837 ;;
fbcf0dca
JM		 838 arm*-*-*)
839 libgloss_dir=arm
840 ;;
841 cris-*-* | crisv32-*-*)
842 libgloss_dir=cris
843 ;;
844 hppa*-*-*)
845 libgloss_dir=pa
846 ;;
847 i[[3456789]]86-*-*)
848 libgloss_dir=i386
849 ;;
c6c0594e 850 loongarch*-*-*)
851 libgloss_dir=loongarch
852 ;;
fbcf0dca
JM		 853 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
854 libgloss_dir=m68hc11
855 ;;
856 m68*-*-* | fido-*-*)
857 libgloss_dir=m68k
858 ;;
859 mips*-*-*)
860 libgloss_dir=mips
861 ;;
862 powerpc*-*-*)
863 libgloss_dir=rs6000
864 ;;
8d2af3a2
DD		 865 pru-*-*)
866 libgloss_dir=pru
867 ;;
fbcf0dca
JM		 868 sparc*-*-*)
869 libgloss_dir=sparc
870 ;;
871esac
872
6a789d5e 873# Disable newlib and libgloss for various target OSes.
6599da04 874case "${target}" in
6a789d5e
JM		 875 alpha*-dec-osf*)
876 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
877 ;;
878 i[[3456789]]86-*-linux*)
879 # This section makes it possible to build newlib natively on linux.
880 # If we are using a cross compiler then don't configure newlib.
881 if test x${is_cross_compiler} != xno ; then
882 noconfigdirs="$noconfigdirs target-newlib"
883 fi
884 noconfigdirs="$noconfigdirs target-libgloss"
885 # If we are not using a cross compiler, do configure newlib.
886 # Note however, that newlib will only be configured in this situation
887 # if the --with-newlib option has been given, because otherwise
888 # 'target-newlib' will appear in skipdirs.
889 ;;
890 i[[3456789]]86-*-rdos*)
891 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
892 ;;
893 sh*-*-pe|mips*-*-pe|arm-wince-pe)
894 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
895 ;;
896 sparc-*-sunos4*)
897 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
898 ;;
91dfef96
JM		 899 bpf-*-*)
900 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
901 ;;
6a789d5e
JM		 902 *-*-aix*)
903 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
904 ;;
905 *-*-beos*)
906 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
907 ;;
3fa03ff9 908 *-*-chorusos)
0036370f 909 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
3fa03ff9 910 ;;
6a789d5e
JM		 911 *-*-dragonfly*)
912 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
913 ;;
914 *-*-freebsd*)
915 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
916 ;;
917 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
918 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
919 ;;
920 *-*-lynxos*)
921 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
922 ;;
923 *-*-mingw*)
924 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
925 ;;
926 *-*-netbsd*)
927 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
928 ;;
929 *-*-netware*)
930 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
931 ;;
932 *-*-tpf*)
933 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
934 ;;
935 *-*-uclinux*)
936 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
937 ;;
938 *-*-vxworks*)
939 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
940 ;;
941esac
942
943case "${target}" in
944 *-*-chorusos)
945 ;;
3be96231
TG		 946 aarch64-*-darwin*)
947 noconfigdirs="$noconfigdirs ld gas gdb gprof"
948 noconfigdirs="$noconfigdirs sim target-rda"
949 ;;
7431c1a1
AS		 950 amdgcn*-*-*)
951 ;;
3be96231
TG		 952 arm-*-darwin*)
953 noconfigdirs="$noconfigdirs ld gas gdb gprof"
954 noconfigdirs="$noconfigdirs sim target-rda"
955 ;;
75eeae1a 956 powerpc-*-darwin*)
e1514c3f 957 noconfigdirs="$noconfigdirs ld gas gdb gprof"
9c8f9ec2 958 noconfigdirs="$noconfigdirs sim target-rda"
940cde4d 959 ;;
354ebf88
RW		 960 i[[3456789]]86-*-darwin*)
961 noconfigdirs="$noconfigdirs ld gprof"
962 noconfigdirs="$noconfigdirs sim target-rda"
963 ;;
964 x86_64-*-darwin[[912]]*)
0db3a858
TG		 965 noconfigdirs="$noconfigdirs ld gas gprof"
966 noconfigdirs="$noconfigdirs sim target-rda"
967 ;;
42c1cd8a
AT		 968 *-*-darwin*)
969 noconfigdirs="$noconfigdirs ld gas gdb gprof"
970 noconfigdirs="$noconfigdirs sim target-rda"
42c1cd8a 971 ;;
8c6d158a 972 *-*-dragonfly*)
8c6d158a 973 ;;
c3f84f61 974 *-*-freebsd*)
88252529 975 if test "x$with_gmp" = x \
c0d0a722 976 && ! test -d ${srcdir}/gmp \
6de9cd9a
DN		 977 && test -f /usr/local/include/gmp.h; then
978 with_gmp=/usr/local
979 fi
6de9cd9a 980 ;;
ef4e7569
US		 981 *-*-kaos*)
982 # Remove unsupported stuff on all kaOS configurations.
ef4e7569
US		 983 noconfigdirs="$noconfigdirs target-libgloss"
984 ;;
51584787 985 *-*-netbsd*)
51584787 986 ;;
61fec9ff 987 *-*-netware*)
6599da04 988 ;;
fd6487af
JS		 989 *-*-phoenix*)
990 noconfigdirs="$noconfigdirs target-libgloss"
991 ;;
3fbc0b70 992 *-*-rtems*)
2909494b 993 noconfigdirs="$noconfigdirs target-libgloss"
3fbc0b70 994 ;;
a8ba31f2
EC		 995 # The tpf target doesn't support gdb yet.
996 *-*-tpf*)
6a789d5e 997 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
a8ba31f2 998 ;;
5785c0ed 999 *-*-uclinux*)
6a789d5e 1000 noconfigdirs="$noconfigdirs target-rda"
5785c0ed 1001 ;;
6599da04 1002 *-*-vxworks*)
6599da04 1003 ;;
b104e095 1004 alpha*-dec-osf*)
603606e7 1005 # ld works, but does not support shared libraries.
6599da04 1006 # gas doesn't generate exception information.
6a789d5e 1007 noconfigdirs="$noconfigdirs gas ld"
6599da04
JM		 1008 ;;
1009 alpha*-*-*vms*)
2909494b 1010 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
6599da04
JM		 1011 ;;
1012 alpha*-*-*)
1013 # newlib is not 64 bit ready
2909494b 1014 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1015 ;;
91dfef96
JM		 1016 bpf-*-*)
1017 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1018 ;;
3a685f6f 1019 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
b4f96efe 1020 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
3a685f6f 1021 ;;
2fd88f4f
AK		 1022 arc*-*-*)
1023 noconfigdirs="$noconfigdirs sim"
1024 ;;
6599da04 1025 arm-*-pe*)
2909494b 1026 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1027 ;;
5d4a5ee6 1028 arm-*-riscix*)
0036370f 1029 noconfigdirs="$noconfigdirs ld target-libgloss"
5d4a5ee6 1030 ;;
b588ae30
GJL		 1031 avr-*-*)
1032 if test x${with_avrlibc} != xno; then
1033 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1034 fi
1035 ;;
a5a438f5 1036 c4x-*-* | tic4x-*-*)
0036370f 1037 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1038 ;;
0036370f
JM		 1039 tic54x-*-*)
1040 noconfigdirs="$noconfigdirs target-libgloss gdb"
ab50d72b 1041 ;;
6599da04 1042 d10v-*-*)
0036370f 1043 noconfigdirs="$noconfigdirs target-libgloss"
d207ebef
JM		 1044 ;;
1045 d30v-*-*)
0036370f 1046 noconfigdirs="$noconfigdirs gdb"
6599da04 1047 ;;
09b5f8bf 1048 fr30-*-elf*)
2909494b 1049 noconfigdirs="$noconfigdirs gdb"
09b5f8bf 1050 ;;
a05c2c75
L		 1051 ft32-*-*)
1052 noconfigdirs="$noconfigdirs target-rda gprof"
1053 ;;
55f2d967 1054 moxie-*-*)
a05c2c75 1055 noconfigdirs="$noconfigdirs"
55f2d967 1056 ;;
ab50d72b 1057 h8300*-*-*)
2909494b 1058 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1059 ;;
6599da04 1060 h8500-*-*)
0036370f 1061 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1062 ;;
a05c2c75
L		 1063 hppa*64*-*-hpux*)
1064 noconfigdirs="$noconfigdirs gdb"
1065 ;;
4569f85e 1066 hppa*64*-*-linux*)
cdbff0ab 1067 ;;
56f8587a 1068 hppa*-*-linux*)
3e732ba0 1069 ;;
6599da04 1070 hppa*-*-*elf* | \
bae29210 1071 hppa*-*-lites* | \
66350331 1072 hppa*-*-openbsd* | \
bae29210 1073 hppa*64*-*-*)
6599da04 1074 ;;
c03353e2 1075 hppa*-*-pro*)
c03353e2 1076 ;;
6599da04 1077 hppa*-*-*)
2909494b 1078 noconfigdirs="$noconfigdirs ld"
d207ebef 1079 ;;
fb87ad5d 1080 i960-*-*)
0036370f 1081 noconfigdirs="$noconfigdirs gdb"
fb87ad5d 1082 ;;
d207ebef
JM		 1083 ia64*-*-elf*)
1084 # No gdb support yet.
1bcce263 1085 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
d207ebef 1086 ;;
ab50d72b 1087 ia64*-**-hpux*)
5a2931d1 1088 # No ld support yet.
a05c2c75 1089 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
ab50d72b 1090 ;;
52535a64 1091 ia64*-*-*vms*)
091fe9ca
TG		 1092 # No ld support yet.
1093 noconfigdirs="$noconfigdirs libgui itcl ld"
52535a64 1094 ;;
ef4c4300 1095 i[[3456789]]86-w64-mingw*)
ef4c4300
KT		 1096 ;;
1097 i[[3456789]]86-*-mingw*)
b91f0a41 1098 target_configdirs="$target_configdirs target-winsup"
5d571eaa 1099 ;;
d207ebef
JM		 1100 *-*-cygwin*)
1101 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1bcce263 1102 noconfigdirs="$noconfigdirs target-libgloss"
801e2270 1103 # always build newlib if winsup directory is present.
b91f0a41 1104 if test -d "$srcdir/winsup/cygwin"; then
801e2270 1105 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
c8e6cd41 1106 elif test -d "$srcdir/newlib"; then
b91f0a41 1107 echo "Warning: winsup/cygwin is missing so newlib can't be built."
801e2270 1108 fi
5d571eaa 1109 ;;
f2a0e225 1110 i[[3456789]]86-*-pe)
ebb9f8b0 1111 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1112 ;;
f2a0e225 1113 i[[3456789]]86-*-sco3.2v5*)
6599da04
JM		 1114 # The linker does not yet know about weak symbols in COFF,
1115 # and is not configured to handle mixed ELF and COFF.
0036370f 1116 noconfigdirs="$noconfigdirs ld target-libgloss"
6599da04 1117 ;;
f2a0e225 1118 i[[3456789]]86-*-sco*)
0036370f 1119 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1120 ;;
fbdd5d87 1121 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
7c01b2b5 1122 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1123 ;;
f2a0e225 1124 i[[3456789]]86-*-sysv4*)
0036370f 1125 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1126 ;;
f2a0e225 1127 i[[3456789]]86-*-beos*)
6a789d5e 1128 noconfigdirs="$noconfigdirs gdb"
3aa83176 1129 ;;
d1f8db0c 1130 i[[3456789]]86-*-rdos*)
6a789d5e 1131 noconfigdirs="$noconfigdirs gdb"
c03353e2 1132 ;;
d344dce9 1133 mmix-*-*)
2909494b 1134 noconfigdirs="$noconfigdirs gdb"
d344dce9 1135 ;;
ab34901f 1136 mt-*-*)
79dd769c
AH		 1137 noconfigdirs="$noconfigdirs sim"
1138 ;;
58b40a67
FT		 1139 nfp-*-*)
1140 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1141 noconfigdirs="$noconfigdirs $target_libraries"
1142 ;;
e6cbe965
SC		 1143 pdp11-*-*)
1144 noconfigdirs="$noconfigdirs gdb gprof"
1145 ;;
6599da04
JM		 1146 powerpc-*-aix*)
1147 # copied from rs6000-*-* entry
6a789d5e 1148 noconfigdirs="$noconfigdirs gprof"
6599da04 1149 ;;
4569f85e 1150 powerpc*-*-winnt* | powerpc*-*-pe*)
6599da04 1151 target_configdirs="$target_configdirs target-winsup"
0036370f 1152 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
6599da04
JM		 1153 # always build newlib.
1154 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1155 ;;
1156 # This is temporary until we can link against shared libraries
1157 powerpcle-*-solaris*)
0036370f 1158 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
6599da04 1159 ;;
0da3b5a7 1160 powerpc-*-beos*)
6a789d5e 1161 noconfigdirs="$noconfigdirs gdb"
d207ebef 1162 ;;
6599da04 1163 rs6000-*-lynxos*)
6a789d5e 1164 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1165 ;;
1166 rs6000-*-aix*)
6a789d5e 1167 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1168 ;;
1169 rs6000-*-*)
2909494b 1170 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1171 ;;
1172 m68k-apollo-*)
0036370f 1173 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
6599da04 1174 ;;
ca9fe997 1175 microblaze*)
2909494b 1176 noconfigdirs="$noconfigdirs gprof"
ca9fe997 1177 ;;
74ae587e 1178 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
d9dced13
RS		 1179 if test x$with_newlib = xyes; then
1180 noconfigdirs="$noconfigdirs gprof"
1181 fi
d9dced13 1182 ;;
6599da04 1183 mips*-*-irix5*)
0036370f 1184 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04
JM		 1185 ;;
1186 mips*-*-irix6*)
2909494b 1187 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1188 ;;
6599da04 1189 mips*-*-bsd*)
bc98bcc4 1190 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
6599da04 1191 ;;
9bec4bf0 1192 mips*-*-linux*)
9bec4bf0 1193 ;;
bc98bcc4
JBG		 1194 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1195 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1196 noconfigdirs="$noconfigdirs ld gas gprof"
1197 ;;
6599da04 1198 mips*-*-*)
2909494b 1199 noconfigdirs="$noconfigdirs gprof"
6599da04 1200 ;;
738f2522 1201 nvptx*-*-*)
738f2522
BS		 1202 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1203 ;;
bc6d9014 1204 sh-*-*)
ea2002ba
CB		 1205 case "${target}" in
1206 sh*-*-elf)
2909494b 1207 ;;
ea2002ba 1208 *)
2909494b 1209 noconfigdirs="$noconfigdirs target-libgloss" ;;
ea2002ba 1210 esac
6599da04
JM		 1211 ;;
1212 sparc-*-sunos4*)
6a789d5e 1213 if test x${is_cross_compiler} = xno ; then
6599da04
JM		 1214 use_gnu_ld=no
1215 fi
1216 ;;
b42f0d7e 1217 tic6x-*-*)
0d557ff8 1218 noconfigdirs="$noconfigdirs sim"
b42f0d7e 1219 ;;
6599da04 1220 v810-*-*)
0036370f 1221 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
6599da04
JM		 1222 ;;
1223 vax-*-*)
2909494b 1224 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1225 ;;
1fc1d82e
MR		 1226 wasm32-*-*)
1227 noconfigdirs="$noconfigdirs ld"
1228 ;;
c6c0594e 1229 loongarch*-*-linux*)
1230 ;;
1231 loongarch*-*-*)
1232 noconfigdirs="$noconfigdirs gprof"
1233 ;;
6599da04
JM		 1234esac
1235
6599da04
JM		 1236# If we aren't building newlib, then don't build libgloss, since libgloss
1237# depends upon some newlib header files.
1238case "${noconfigdirs}" in
1239 *target-libgloss*) ;;
1240 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
55380b08 1241esac
6599da04 1242
55380b08 1243# Work in distributions that contain no compiler tools, like Autoconf.
671aa708 1244host_makefile_frag=/dev/null
55380b08
NN		 1245if test -d ${srcdir}/config ; then
1246case "${host}" in
f2a0e225 1247 i[[3456789]]86-*-msdosdjgpp*)
55380b08
NN		 1248 host_makefile_frag="config/mh-djgpp"
1249 ;;
1250 *-cygwin*)
2a79c47f 1251 ACX_CHECK_CYGWIN_CAT_WORKS
55380b08
NN		 1252 host_makefile_frag="config/mh-cygwin"
1253 ;;
c53a18d3 1254 *-mingw*)
1f5a6b84 1255 host_makefile_frag="config/mh-mingw"
738a52d3 1256 ;;
cabb9d59 1257 alpha*-linux*)
13be44ed
UB		 1258 host_makefile_frag="config/mh-alpha-linux"
1259 ;;
111eeb6e 1260 hppa*-hp-hpux*)
00afcaa0
PB		 1261 host_makefile_frag="config/mh-pa"
1262 ;;
1263 hppa*-*)
1264 host_makefile_frag="config/mh-pa"
1265 ;;
54258e22 1266 i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*)
d8ed14ce 1267 host_makefile_frag="config/mh-darwin"
be8fff81 1268 ;;
d19bca38
PB		 1269 powerpc-*-aix*)
1270 host_makefile_frag="config/mh-ppc-aix"
1271 ;;
1272 rs6000-*-aix*)
1273 host_makefile_frag="config/mh-ppc-aix"
1274 ;;
55380b08
NN		 1275esac
1276fi
1277
e4c9c075 1278if test "${build}" != "${host}" ; then
0999159b
PB		 1279 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1280 AS_FOR_BUILD=${AS_FOR_BUILD-as}
e4c9c075 1281 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
c841dc0a 1282 CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}"
0999159b 1283 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
3b5e8ee4 1284 DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil}
0999159b 1285 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
632e2a07 1286 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
b4c522fa 1287 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
0999159b
PB		 1288 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1289 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1290 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1291 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1292 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1293 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
e4c9c075 1294else
0999159b
PB		 1295 AR_FOR_BUILD="\$(AR)"
1296 AS_FOR_BUILD="\$(AS)"
e4c9c075 1297 CC_FOR_BUILD="\$(CC)"
0999159b 1298 CXX_FOR_BUILD="\$(CXX)"
3b5e8ee4 1299 DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)"
0999159b 1300 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
632e2a07 1301 GOC_FOR_BUILD="\$(GOC)"
b4c522fa 1302 GDC_FOR_BUILD="\$(GDC)"
0999159b
PB		 1303 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1304 LD_FOR_BUILD="\$(LD)"
1305 NM_FOR_BUILD="\$(NM)"
1306 RANLIB_FOR_BUILD="\$(RANLIB)"
1307 WINDRES_FOR_BUILD="\$(WINDRES)"
1308 WINDMC_FOR_BUILD="\$(WINDMC)"
c3a86da9 1309fi
e4c9c075 1310
91743432 1311AC_PROG_CC_C99
c3a86da9
DJ		 1312AC_PROG_CXX
1313
1314# We must set the default linker to the linker used by gcc for the correct
1315# operation of libtool. If LD is not defined and we are using gcc, try to
1316# set the LD default to the ld used by gcc.
1317if test -z "$LD"; then
1318 if test "$GCC" = yes; then
1319 case $build in
1320 *-*-mingw*)
1321 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1322 *)
1323 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1324 esac
1325 case $gcc_prog_ld in
1326 # Accept absolute paths.
1327 [[\\/]* | [A-Za-z]:[\\/]*)]
1328 LD="$gcc_prog_ld" ;;
1329 esac
1330 fi
e4c9c075
PB		 1331fi
1332
0b21f5d3
EB		 1333# Check whether -static-libstdc++ -static-libgcc is supported.
1334have_static_libs=no
1335if test "$GCC" = yes; then
1336 saved_LDFLAGS="$LDFLAGS"
1337
1338 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1339 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1340 AC_LANG_PUSH(C++)
22e05272 1341 AC_LINK_IFELSE([AC_LANG_SOURCE([
0d6414b2
EB		 1342#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1343#error -static-libstdc++ not implemented
1344#endif
22e05272 1345int main() {}])],
0b21f5d3
EB		 1346 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1347 [AC_MSG_RESULT([no])])
1348 AC_LANG_POP(C++)
1349
1350 LDFLAGS="$saved_LDFLAGS"
1351fi
1352
e4c9c075 1353ACX_PROG_GNAT
5fee5ec3 1354ACX_PROG_GDC
a76494aa 1355ACX_PROG_CMP_IGNORE_INITIAL
e4c9c075 1356
ff3ac0f4
ILT		 1357AC_ARG_ENABLE([bootstrap],
1358[AS_HELP_STRING([--enable-bootstrap],
1359 [enable bootstrapping @<:@yes if native build@:>@])],,
1360enable_bootstrap=default)
1361
1362# Issue errors and warnings for invalid/strange bootstrap combinations.
bf03b9ff
ILT		 1363if test -r $srcdir/gcc/configure; then
1364 have_compiler=yes
1365else
1366 have_compiler=no
1367fi
ff3ac0f4
ILT		 1368
1369case "$have_compiler:$host:$target:$enable_bootstrap" in
1370 *:*:*:no) ;;
1371
1372 # Default behavior. Enable bootstrap if we have a compiler
1373 # and we are in a native configuration.
1374 yes:$build:$build:default)
1375 enable_bootstrap=yes ;;
1376
1377 *:*:*:default)
1378 enable_bootstrap=no ;;
1379
1380 # We have a compiler and we are in a native configuration, bootstrap is ok
1381 yes:$build:$build:yes)
1382 ;;
1383
1384 # Other configurations, but we have a compiler. Assume the user knows
1385 # what he's doing.
1386 yes:*:*:yes)
1387 AC_MSG_WARN([trying to bootstrap a cross compiler])
1388 ;;
1389
1390 # No compiler: if they passed --enable-bootstrap explicitly, fail
1391 no:*:*:yes)
1392 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1393
1394 # Fail if wrong command line
1395 *)
1396 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1397 ;;
1398esac
1399
5329b59a 1400# When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
ffac9597
JM		 1401# C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1402# require C++11 (or higher).
46070488 1403if test "$enable_bootstrap:$GXX" = "yes:yes"; then
5329b59a 1404 CXX="$CXX -std=c++11"
ffac9597
JM		 1405elif test "$have_compiler" = yes; then
1406 AX_CXX_COMPILE_STDCXX(11)
7ffcf5d6
TB		 1407
1408 if test "${build}" != "${host}"; then
1409 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1410 fi
46070488
JM		 1411fi
1412
4a5e71f2
L		 1413AC_ARG_ENABLE([pgo-build],
1414[AS_HELP_STRING([--enable-pgo-build[[=lto]]],
1415 [enable the PGO build])],
1416[enable_pgo_build=$enableval],
1417[enable_pgo_build=no])
1418
1419# Issue errors and warnings for invalid/strange PGO build combinations.
1420case "$have_compiler:$host:$target:$enable_pgo_build" in
1421 *:*:*:no) ;;
1422
1423 # Allow the PGO build only if we aren't building a compiler and
1424 # we are in a native configuration.
1425 no:$build:$build:yes | no:$build:$build:lto) ;;
1426
1427 # Disallow the PGO bootstrap if we are building a compiler.
1428 yes:*:*:yes | yes:*:*:lto)
1429 AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
1430
1431 *)
1432 AC_MSG_ERROR([invalid option for --enable-pgo-build])
1433 ;;
1434esac
1435
1436if test "$enable_pgo_build" != "no"; then
1437 AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
1438 old_CFLAGS="$CFLAGS"
1439 PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
1440 CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
1441 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1442 [PGO_BUILD_GEN_CFLAGS=])
1443 CFLAGS="$old_CFLAGS"
1444 if test -n "$PGO_BUILD_GEN_CFLAGS"; then
1445 AC_MSG_RESULT([yes])
1446 PGO_BUILD_USE_CFLAGS="-fprofile-use"
1447 else
1448 AC_MSG_RESULT([no])
1449 AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
1450 fi
1451
1452 if test "$enable_pgo_build" = "lto"; then
1453 AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
1454 old_CFLAGS="$CFLAGS"
1455 PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
1456 CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
1457 AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
1458 [PGO_BUILD_LTO_CFLAGS=])
1459 CFLAGS="$old_CFLAGS"
1460 if test -n "$PGO_BUILD_LTO_CFLAGS"; then
1461 AC_MSG_RESULT([yes])
1462 else
1463 AC_MSG_RESULT([no])
1464 AC_MSG_WARN([LTO is disabled for the PGO build])
1465 fi
1466 fi
1467fi
1468AC_SUBST(PGO_BUILD_GEN_CFLAGS)
1469AC_SUBST(PGO_BUILD_USE_CFLAGS)
1470AC_SUBST(PGO_BUILD_LTO_CFLAGS)
1471
592c90ff
KG		 1472# Used for setting $lt_cv_objdir
1473_LT_CHECK_OBJDIR
1474
acd26225 1475# Check for GMP, MPFR and MPC
3a5729ea 1476gmplibs="-lmpc -lmpfr -lgmp"
6de9cd9a 1477gmpinc=
e69bf64b 1478have_gmp=no
acd26225
KG		 1479
1480# Specify a location for mpc
1481# check for this first so it ends up on the link line before mpfr.
33e39b66
AS		 1482AC_ARG_WITH(mpc,
1483[AS_HELP_STRING([--with-mpc=PATH],
1484 [specify prefix directory for installed MPC package.
1485 Equivalent to --with-mpc-include=PATH/include
1486 plus --with-mpc-lib=PATH/lib])])
1487AC_ARG_WITH(mpc-include,
1488[AS_HELP_STRING([--with-mpc-include=PATH],
1489 [specify directory for installed MPC include files])])
1490AC_ARG_WITH(mpc-lib,
1491[AS_HELP_STRING([--with-mpc-lib=PATH],
1492 [specify directory for the installed MPC library])])
acd26225
KG		 1493
1494if test "x$with_mpc" != x; then
3a5729ea
KG		 1495 gmplibs="-L$with_mpc/lib $gmplibs"
1496 gmpinc="-I$with_mpc/include $gmpinc"
acd26225
KG		 1497fi
1498if test "x$with_mpc_include" != x; then
3a5729ea 1499 gmpinc="-I$with_mpc_include $gmpinc"
acd26225
KG		 1500fi
1501if test "x$with_mpc_lib" != x; then
3a5729ea 1502 gmplibs="-L$with_mpc_lib $gmplibs"
acd26225
KG		 1503fi
1504if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
592c90ff 1505 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
3a5729ea 1506 gmpinc='-I$$s/mpc/src '"$gmpinc"
acd26225
KG		 1507 # Do not test the mpc version. Assume that it is sufficient, since
1508 # it is in the source tree, and the library has not been built yet
1509 # but it would be included on the link line in the version check below
1510 # hence making the test fail.
3a5729ea 1511 have_gmp=yes
acd26225 1512fi
e69bf64b 1513
bebf829d
PB		 1514# Specify a location for mpfr
1515# check for this first so it ends up on the link line before gmp.
33e39b66
AS		 1516AC_ARG_WITH(mpfr,
1517[AS_HELP_STRING([--with-mpfr=PATH],
1518 [specify prefix directory for installed MPFR package.
1519 Equivalent to --with-mpfr-include=PATH/include
1520 plus --with-mpfr-lib=PATH/lib])])
1521AC_ARG_WITH(mpfr-include,
1522[AS_HELP_STRING([--with-mpfr-include=PATH],
1523 [specify directory for installed MPFR include files])])
1524AC_ARG_WITH(mpfr-lib,
1525[AS_HELP_STRING([--with-mpfr-lib=PATH],
1526 [specify directory for the installed MPFR library])])
bebf829d
PB		 1527
1528if test "x$with_mpfr" != x; then
1529 gmplibs="-L$with_mpfr/lib $gmplibs"
3a5729ea 1530 gmpinc="-I$with_mpfr/include $gmpinc"
bebf829d 1531fi
8a877c9c 1532if test "x$with_mpfr_include" != x; then
3a5729ea 1533 gmpinc="-I$with_mpfr_include $gmpinc"
8a877c9c
KG		 1534fi
1535if test "x$with_mpfr_lib" != x; then
1536 gmplibs="-L$with_mpfr_lib $gmplibs"
1537fi
e69bf64b 1538if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
8f3675f8
MR		 1539 # MPFR v3.1.0 moved the sources into a src sub-directory.
1540 if ! test -d ${srcdir}/mpfr/src; then
1541 AC_MSG_ERROR([dnl
1542Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1543 fi
00f35794
BE		 1544 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1545 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1546 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
e69bf64b
PB		 1547 # Do not test the mpfr version. Assume that it is sufficient, since
1548 # it is in the source tree, and the library has not been built yet
1549 # but it would be included on the link line in the version check below
1550 # hence making the test fail.
1551 have_gmp=yes
1552fi
bebf829d 1553
6de9cd9a 1554# Specify a location for gmp
33e39b66
AS		 1555AC_ARG_WITH(gmp,
1556[AS_HELP_STRING([--with-gmp=PATH],
1557 [specify prefix directory for the installed GMP package.
1558 Equivalent to --with-gmp-include=PATH/include
1559 plus --with-gmp-lib=PATH/lib])])
1560AC_ARG_WITH(gmp-include,
1561[AS_HELP_STRING([--with-gmp-include=PATH],
1562 [specify directory for installed GMP include files])])
1563AC_ARG_WITH(gmp-lib,
1564[AS_HELP_STRING([--with-gmp-lib=PATH],
1565 [specify directory for the installed GMP library])])
6de9cd9a 1566
6de9cd9a 1567
bebf829d
PB		 1568if test "x$with_gmp" != x; then
1569 gmplibs="-L$with_gmp/lib $gmplibs"
1570 gmpinc="-I$with_gmp/include $gmpinc"
6de9cd9a 1571fi
8a877c9c
KG		 1572if test "x$with_gmp_include" != x; then
1573 gmpinc="-I$with_gmp_include $gmpinc"
1574fi
1575if test "x$with_gmp_lib" != x; then
1576 gmplibs="-L$with_gmp_lib $gmplibs"
1577fi
e69bf64b 1578if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
592c90ff 1579 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
e69bf64b 1580 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
9183bdcf 1581 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
592c90ff 1582 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
0ff2d841 1583 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
e69bf64b
PB		 1584 # Do not test the gmp version. Assume that it is sufficient, since
1585 # it is in the source tree, and the library has not been built yet
1586 # but it would be included on the link line in the version check below
1587 # hence making the test fail.
1588 have_gmp=yes
1589fi
6de9cd9a 1590
d943d7c4 1591if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
e69bf64b
PB		 1592 have_gmp=yes
1593 saved_CFLAGS="$CFLAGS"
1594 CFLAGS="$CFLAGS $gmpinc"
362c6d2f
KG		 1595 # Check for the recommended and required versions of GMP.
1596 AC_MSG_CHECKING([for the correct version of gmp.h])
e69bf64b 1597 AC_TRY_COMPILE([#include "gmp.h"],[
362c6d2f
KG		 1598 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1599 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
385c0681 1600 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
e48d66a9 1601 choke me
e69bf64b 1602 #endif
e8fd69bb 1603 ], [AC_TRY_COMPILE([#include <gmp.h>],[
362c6d2f
KG		 1604 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1605 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1606 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1607 choke me
1608 #endif
e8fd69bb 1609 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1610 [AC_MSG_RESULT([no]); have_gmp=no])
e69bf64b 1611
acd26225 1612 # If we have GMP, check the MPFR version.
e69bf64b 1613 if test x"$have_gmp" = xyes; then
362c6d2f
KG		 1614 # Check for the recommended and required versions of MPFR.
1615 AC_MSG_CHECKING([for the correct version of mpfr.h])
acd26225 1616 AC_TRY_COMPILE([#include <gmp.h>
e69bf64b 1617 #include <mpfr.h>],[
8be34204 1618 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
e69bf64b
PB		 1619 choke me
1620 #endif
e8fd69bb 1621 ], [AC_TRY_COMPILE([#include <gmp.h>
acd26225 1622 #include <mpfr.h>],[
8be34204 1623 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
acd26225
KG		 1624 choke me
1625 #endif
e8fd69bb 1626 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
acd26225
KG		 1627 [AC_MSG_RESULT([no]); have_gmp=no])
1628 fi
1629
1630 # Check for the MPC header version.
3a5729ea 1631 if test x"$have_gmp" = xyes ; then
362c6d2f 1632 # Check for the recommended and required versions of MPC.
acd26225
KG		 1633 AC_MSG_CHECKING([for the correct version of mpc.h])
1634 AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f 1635 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
acd26225
KG		 1636 choke me
1637 #endif
e8fd69bb 1638 ], [AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f
KG		 1639 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1640 choke me
1641 #endif
e8fd69bb 1642 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1643 [AC_MSG_RESULT([no]); have_gmp=no])
acd26225
KG		 1644 fi
1645
1646 # Now check the MPFR library.
1647 if test x"$have_gmp" = xyes; then
1648 saved_LIBS="$LIBS"
1649 LIBS="$LIBS $gmplibs"
3a5729ea
KG		 1650 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1651 AC_TRY_LINK([#include <mpc.h>],[
54e433bc
MK		 1652 mpfr_t n;
1653 mpfr_t x;
3a5729ea 1654 mpc_t c;
e69bf64b 1655 int t;
54e433bc
MK		 1656 mpfr_init (n);
1657 mpfr_init (x);
90ca6847
TB		 1658 mpfr_atan2 (n, n, x, MPFR_RNDN);
1659 mpfr_erfc (n, x, MPFR_RNDN);
1660 mpfr_subnormalize (x, t, MPFR_RNDN);
3a5729ea
KG		 1661 mpfr_clear(n);
1662 mpfr_clear(x);
1663 mpc_init2 (c, 53);
1664 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1665 mpc_cosh (c, c, MPC_RNDNN);
1666 mpc_pow (c, c, c, MPC_RNDNN);
1667 mpc_acosh (c, c, MPC_RNDNN);
1668 mpc_clear (c);
acd26225
KG		 1669 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1670 LIBS="$saved_LIBS"
e69bf64b 1671 fi
acd26225 1672
e69bf64b 1673 CFLAGS="$saved_CFLAGS"
6de9cd9a 1674
362c6d2f
KG		 1675# The library versions listed in the error message below should match
1676# the HARD-minimums enforced above.
e69bf64b 1677 if test x$have_gmp != xyes; then
8be34204 1678 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
3a5729ea
KG		 1679Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1680their locations. Source code for these libraries can be found at
1681their respective hosting sites as well as at
aeebd94c 1682https://gcc.gnu.org/pub/gcc/infrastructure/. See also
0b3d926d 1683https://gcc.gnu.org/onlinedocs/install/prerequisites.html for additional info. If
3a5729ea
KG		 1684you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1685make sure that you have installed both the libraries and the header
1686files. They may be located in separate packages.])
e69bf64b 1687 fi
70ec446f
KG		 1688fi
1689
acd26225 1690# Flags needed for both GMP, MPFR and/or MPC.
6de9cd9a
DN		 1691AC_SUBST(gmplibs)
1692AC_SUBST(gmpinc)
9e3eba15 1693AC_SUBST(extra_mpfr_configure_flags)
acd26225
KG		 1694AC_SUBST(extra_mpc_gmp_configure_flags)
1695AC_SUBST(extra_mpc_mpfr_configure_flags)
0ff2d841 1696AC_SUBST(extra_isl_gmp_configure_flags)
6de9cd9a 1697
00020c16
ILT		 1698# Libraries to use for stage1 or when not bootstrapping.
1699AC_ARG_WITH(stage1-libs,
33e39b66 1700[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
00020c16
ILT		 1701[if test "$withval" = "no" -o "$withval" = "yes"; then
1702 stage1_libs=
1703 else
1704 stage1_libs=$withval
1705 fi],
5dc85f7e 1706[stage1_libs=])
00020c16
ILT		 1707AC_SUBST(stage1_libs)
1708
aac9103b
TT		 1709# Whether or not to use -static-libstdc++ and -static-libgcc. The
1710# default is yes if gcc is being built; no otherwise. The reason for
1711# this default is that gdb is sometimes linked against GNU Source
1712# Highlight, which is a shared library that uses C++ exceptions. In
1713# this case, -static-libstdc++ will cause crashes.
1714AC_ARG_WITH(static-standard-libraries,
1715[AS_HELP_STRING([--with-static-standard-libraries],
1716 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1717[], [with_static_standard_libraries=auto])
1718if test "$with_static_standard_libraries" = auto; then
1719 with_static_standard_libraries=$have_compiler
1720fi
1721
0b21f5d3
EB		 1722# Linker flags to use for stage1 or when not bootstrapping.
1723AC_ARG_WITH(stage1-ldflags,
1724[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1725[if test "$withval" = "no" -o "$withval" = "yes"; then
1726 stage1_ldflags=
1727 else
1728 stage1_ldflags=$withval
1729 fi],
1730[stage1_ldflags=
1731 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1732 # if supported. But if the user explicitly specified the libraries to use,
1733 # trust that they are doing what they want.
aac9103b
TT		 1734 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1735 -a "$have_static_libs" = yes; then
0b21f5d3
EB		 1736 stage1_ldflags="-static-libstdc++ -static-libgcc"
1737 fi])
1738AC_SUBST(stage1_ldflags)
1739
5dc85f7e 1740# Libraries to use for stage2 and later builds.
00020c16 1741AC_ARG_WITH(boot-libs,
33e39b66 1742[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
00020c16
ILT		 1743[if test "$withval" = "no" -o "$withval" = "yes"; then
1744 poststage1_libs=
1745 else
e90e6bd7 1746 poststage1_libs=$withval
00020c16 1747 fi],
5dc85f7e 1748[poststage1_libs=])
00020c16
ILT		 1749AC_SUBST(poststage1_libs)
1750
ed2eaa9f
ILT		 1751# Linker flags to use for stage2 and later builds.
1752AC_ARG_WITH(boot-ldflags,
33e39b66
AS		 1753[AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1754 [linker flags for stage2 and later])],
ed2eaa9f
ILT		 1755[if test "$withval" = "no" -o "$withval" = "yes"; then
1756 poststage1_ldflags=
1757 else
1758 poststage1_ldflags=$withval
1759 fi],
1760[poststage1_ldflags=
bec93d73
ILT		 1761 # In stages 2 and 3, default to linking libstdc++ and libgcc
1762 # statically. But if the user explicitly specified the libraries to
1763 # use, trust that they are doing what they want.
1764 if test "$poststage1_libs" = ""; then
ed2eaa9f
ILT		 1765 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1766 fi])
1767AC_SUBST(poststage1_ldflags)
1768
e357a5e0 1769# GCC GRAPHITE dependency isl.
4a9bb2aa 1770# Basic setup is inlined here, actual checks are in config/isl.m4
625afa23 1771
625afa23
RG		 1772AC_ARG_WITH(isl,
1773 [AS_HELP_STRING(
1774 [--with-isl=PATH],
e357a5e0 1775 [Specify prefix directory for the installed isl package.
625afa23
RG		 1776 Equivalent to --with-isl-include=PATH/include
1777 plus --with-isl-lib=PATH/lib])])
1778
eae1a5d4 1779# Treat --without-isl as a request to disable
625afa23 1780# GRAPHITE support and skip all following checks.
eae1a5d4 1781if test "x$with_isl" != "xno"; then
e357a5e0 1782 # Check for isl
625afa23
RG		 1783 dnl Provide configure switches and initialize islinc & isllibs
1784 dnl with user input.
1785 ISL_INIT_FLAGS
e357a5e0 1786 dnl The versions of isl that work for Graphite
e0c0c325 1787 ISL_CHECK_VERSION()
e357a5e0 1788 dnl Only execute fail-action, if isl has been requested.
33ad93b9 1789 ISL_IF_FAILED([
e357a5e0 1790 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
f8bf9252 1791fi
f8bf9252 1792
e357a5e0 1793# If the isl check failed, disable builds of in-tree variant of isl
625afa23 1794if test "x$with_isl" = xno ||
625afa23 1795 test "x$gcc_cv_isl" = xno; then
4a9bb2aa 1796 noconfigdirs="$noconfigdirs isl"
625afa23 1797 islinc=
eae1a5d4
RG		 1798fi
1799
1800AC_SUBST(isllibs)
625afa23 1801AC_SUBST(islinc)
625afa23 1802
d7f09764
DN		 1803# Check for LTO support.
1804AC_ARG_ENABLE(lto,
33e39b66 1805[AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
d7f09764
DN		 1806enable_lto=$enableval,
1807enable_lto=yes; default_enable_lto=yes)
1808
48215350
DK		 1809ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1810 build_lto_plugin=yes
1811],[if test x"$default_enable_lto" = x"yes" ; then
bb79486c 1812 case $target in
deeba76a 1813 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
48215350 1814 # On other non-ELF platforms, LTO has yet to be validated.
bb79486c
JH		 1815 *) enable_lto=no ;;
1816 esac
3bec79c5 1817 else
db50fe7d
IS		 1818 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1819 # It would also be nice to check the binutils support, but we don't
3bec79c5
DK		 1820 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1821 # warn during gcc/ subconfigure; unless you're bootstrapping with
1822 # -flto it won't be needed until after installation anyway.
1823 case $target in
9e530bcd 1824 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
3bec79c5
DK		 1825 *) if test x"$enable_lto" = x"yes"; then
1826 AC_MSG_ERROR([LTO support is not enabled for this target.])
1827 fi
1828 ;;
1829 esac
1830 fi
1cd0b716 1831 # Among non-ELF, only Windows platforms support the lto-plugin so far.
48215350 1832 # Build it unless LTO was explicitly disabled.
1cd0b716 1833 case $target in
48215350 1834 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1cd0b716
DK		 1835 *) ;;
1836 esac
48215350 1837])
d7f09764 1838
45b3824d
TS		 1839AC_ARG_ENABLE(linker-plugin-configure-flags,
1840 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1841 [additional flags for configuring linker plugins @<:@none@:>@])],
1842 extra_linker_plugin_configure_flags=$enableval,
1843 extra_linker_plugin_configure_flags=)
1844AC_SUBST(extra_linker_plugin_configure_flags)
1845AC_ARG_ENABLE(linker-plugin-flags,
1846 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1847 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1848 extra_linker_plugin_flags=$enableval,
1849 extra_linker_plugin_flags=)
1850AC_SUBST(extra_linker_plugin_flags)
1851
cdfee50a
NS		 1852# Enable --enable-host-shared.
1853# Checked early to determine whether jit is an 'all' language
1854AC_ARG_ENABLE(host-shared,
1855[AS_HELP_STRING([--enable-host-shared],
1856 [build host code as shared libraries])],
a1d2b162 1857[host_shared=$enableval
1edfc8f2 1858 case $host in
a1d2b162
IS		 1859 x86_64-*-darwin* | aarch64-*-darwin*)
1860 if test x$host_shared != xyes ; then
1861 # PIC is the default, and actually cannot be switched off.
1862 echo configure.ac: warning: PIC code is required for the configured target, host-shared setting ignored. 1>&2
1863 host_shared=yes
1864 fi ;;
1865 *) ;;
1866 esac],
1edfc8f2 1867[case $host in
a1d2b162
IS		 1868 x86_64-*-darwin* | aarch64-*-darwin*) host_shared=yes ;;
1869 *) host_shared=no ;;
1870 esac])
cdfee50a 1871AC_SUBST(host_shared)
f8bf9252 1872
0823efed 1873# By default, C and C++ are the only stage 1 languages.
e1888513 1874stage1_languages=,c,
2805b53a 1875
00020c16 1876# Target libraries that we bootstrap.
ad1e5170 1877bootstrap_target_libs=,target-libgcc,
00020c16 1878
e4c9c075
PB		 1879# Figure out what language subdirectories are present.
1880# Look if the user specified --enable-languages="..."; if not, use
1881# the environment variable $LANGUAGES if defined. $LANGUAGES might
1882# go away some day.
1883# NB: embedded tabs in this IF block -- do not untabify
1884if test -d ${srcdir}/gcc; then
1885 if test x"${enable_languages+set}" != xset; then
1886 if test x"${LANGUAGES+set}" = xset; then
1887 enable_languages="${LANGUAGES}"
6b1786aa 1888 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
e4c9c075 1889 else
cdfee50a 1890 enable_languages=default
e4c9c075
PB		 1891 fi
1892 else
1893 if test x"${enable_languages}" = x ||
1894 test x"${enable_languages}" = xyes;
1895 then
6b1786aa 1896 echo configure.ac: --enable-languages needs at least one language argument 1>&2
e4c9c075
PB		 1897 exit 1
1898 fi
1899 fi
1900 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1901
7f26dfa3
FXC		 1902 # 'f95' is the old name for the 'fortran' language. We issue a warning
1903 # and make the substitution.
1904 case ,${enable_languages}, in
1905 *,f95,*)
6b1786aa 1906 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
7f26dfa3
FXC		 1907 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1908 ;;
1909 esac
1910
0823efed
DN		 1911 # If bootstrapping, C++ must be enabled.
1912 case ",$enable_languages,:$enable_bootstrap" in
1913 *,c++,*:*) ;;
1914 *:yes)
ff3ac0f4
ILT		 1915 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1916 enable_languages="${enable_languages},c++"
1917 else
0823efed 1918 AC_MSG_ERROR([bootstrapping requires c++ sources])
ff3ac0f4
ILT		 1919 fi
1920 ;;
1921 esac
1922
e4c9c075
PB		 1923 # First scan to see if an enabled language requires some other language.
1924 # We assume that a given config-lang.in will list all the language
1925 # front ends it requires, even if some are required indirectly.
1926 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1927 case ${lang_frag} in
1928 ..) ;;
1929 # The odd quoting in the next line works around
1930 # an apparent bug in bash 1.12 on linux.
1931 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1932 *)
69ecd18f
ILT		 1933 # From the config-lang.in, get $language, $lang_requires, and
1934 # $lang_requires_boot_languages.
e4c9c075
PB		 1935 language=
1936 lang_requires=
69ecd18f 1937 lang_requires_boot_languages=
d4360477
NS		 1938 # set srcdir during sourcing lang_frag to the gcc dir.
1939 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1940 # polutes this shell
1941 saved_srcdir=${srcdir}
1942 srcdir=${srcdir}/gcc . ${lang_frag}
1943 srcdir=${saved_srcdir}
69ecd18f 1944 for other in ${lang_requires} ${lang_requires_boot_languages}; do
e4c9c075
PB		 1945 case ,${enable_languages}, in
1946 *,$other,*) ;;
cdfee50a 1947 *,default,*) ;;
e4c9c075
PB		 1948 *,all,*) ;;
1949 *,$language,*)
1950 echo " \`$other' language required by \`$language'; enabling" 1>&2
1951 enable_languages="${enable_languages},${other}"
1952 ;;
1953 esac
1954 done
69ecd18f
ILT		 1955 for other in ${lang_requires_boot_languages} ; do
1956 if test "$other" != "c"; then
1957 case ,${enable_stage1_languages}, in
1958 *,$other,*) ;;
cdfee50a 1959 *,default,*) ;;
69ecd18f
ILT		 1960 *,all,*) ;;
1961 *)
1962 case ,${enable_languages}, in
1963 *,$language,*)
1964 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1965 enable_stage1_languages="$enable_stage1_languages,${other}"
1966 ;;
1967 esac
1968 ;;
1969 esac
1970 fi
1971 done
e4c9c075
PB		 1972 ;;
1973 esac
1974 done
1975
e1888513 1976 new_enable_languages=,c,
d7f09764
DN		 1977
1978 # If LTO is enabled, add the LTO front end.
d7f09764 1979 if test "$enable_lto" = "yes" ; then
e4c5bd48
RW		 1980 case ,${enable_languages}, in
1981 *,lto,*) ;;
1982 *) enable_languages="${enable_languages},lto" ;;
1983 esac
1cd0b716 1984 if test "${build_lto_plugin}" = "yes" ; then
d7f09764 1985 configdirs="$configdirs lto-plugin"
d7f09764
DN		 1986 fi
1987 fi
d7f09764 1988
426c1eb0
TS		 1989 # If we're building an offloading compiler, add the LTO front end.
1990 if test x"$enable_as_accelerator_for" != x ; then
1991 case ,${enable_languages}, in
1992 *,lto,*) ;;
1993 *) enable_languages="${enable_languages},lto" ;;
1994 esac
1995 fi
1996
cdfee50a 1997 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
e1888513 1998 potential_languages=,c,
e4c9c075 1999
4da3b0f8
ILT		 2000 enabled_target_libs=
2001 disabled_target_libs=
2002
e4c9c075
PB		 2003 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2004 case ${lang_frag} in
2005 ..) ;;
2006 # The odd quoting in the next line works around
2007 # an apparent bug in bash 1.12 on linux.
2008 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2009 *)
2010 # From the config-lang.in, get $language, $target_libs,
2805b53a 2011 # $lang_dirs, $boot_language, and $build_by_default
e4c9c075
PB		 2012 language=
2013 target_libs=
2014 lang_dirs=
1546bb64 2015 subdir_requires=
e1888513
PB		 2016 boot_language=no
2017 build_by_default=yes
d4360477
NS		 2018 # set srcdir during sourcing. See above about save & restore
2019 saved_srcdir=${srcdir}
2020 srcdir=${srcdir}/gcc . ${lang_frag}
2021 srcdir=${saved_srcdir}
e1888513
PB		 2022 if test x${language} = x; then
2023 echo "${lang_frag} doesn't set \$language." 1>&2
2024 exit 1
2025 fi
2026
78767fd9 2027 if test "$language" = "c++"; then
0823efed 2028 boot_language=yes
00020c16
ILT		 2029 fi
2030
178f875a 2031 add_this_lang=no
cdfee50a
NS		 2032 # C is always enabled, so no need to add it again
2033 if test "$language" != "c"; then
2034 case ,${enable_languages}, in
2035 *,${language},*)
2036 # Language was explicitly selected; include it
d4a10d0a 2037 add_this_lang=yes
cdfee50a
NS		 2038 ;;
2039 *,all,*)
2040 # All languages are enabled
2041 add_this_lang=all
2042 ;;
2043 *,default,*)
2044 # 'default' was selected, select it if it is a default language
178f875a 2045 add_this_lang=${build_by_default}
cdfee50a
NS		 2046 ;;
2047 esac
2048 fi
6de9cd9a 2049
1546bb64 2050 # Disable languages that need other directories if these aren't available.
95695ad3 2051 for i in $subdir_requires; do
b6348cb3 2052 test -f "$srcdir/gcc/$i/config-lang.in" && continue
cdfee50a
NS		 2053 case ${add_this_lang} in
2054 yes)
1546bb64
PB		 2055 # Specifically requested language; tell them.
2056 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2057 ;;
cdfee50a
NS		 2058 all)
2059 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2060 add_this_lang=unsupported
2061 ;;
1546bb64
PB		 2062 *)
2063 # Silently disable.
e1888513 2064 add_this_lang=unsupported
1546bb64
PB		 2065 ;;
2066 esac
2067 done
2068
e1888513 2069 # Disable Ada if no preexisting GNAT is available.
cdfee50a
NS		 2070 case ${add_this_lang}:${language}:${have_gnat} in
2071 yes:ada:no)
e1888513
PB		 2072 # Specifically requested language; tell them.
2073 AC_MSG_ERROR([GNAT is required to build $language])
2074 ;;
cdfee50a
NS		 2075 all:ada:no)
2076 AC_MSG_WARN([GNAT is required to build $language])
2077 add_this_lang=unsupported
2078 ;;
e1888513
PB		 2079 *:ada:no)
2080 # Silently disable.
2081 add_this_lang=unsupported
2082 ;;
2083 esac
2084
5fee5ec3
IB		 2085 # Disable D if no preexisting GDC is available.
2086 case ${add_this_lang}:${language}:${have_gdc} in
2087 yes:d:no)
2088 # Specifically requested language; tell them.
2089 AC_MSG_ERROR([GDC is required to build $language])
2090 ;;
2091 all:d:no)
2092 AC_MSG_WARN([GDC is required to build $language])
2093 add_this_lang=unsupported
2094 ;;
2095 *:d:no)
2096 # Silently disable.
2097 add_this_lang=unsupported
2098 ;;
2099 esac
2100
cdfee50a 2101 # Disable jit if -enable-host-shared not specified
c83027f3
NB		 2102 # but not if building for Mingw. All code in Windows
2103 # is position independent code (PIC).
2104 case $target in
2105 *mingw*) ;;
2106 *)
2107 case ${add_this_lang}:${language}:${host_shared} in
2108 yes:jit:no)
2109 # PR jit/64780: explicitly specify --enable-host-shared
cdfee50a
NS		 2110 AC_MSG_ERROR([
2111Enabling language "jit" requires --enable-host-shared.
2112
2113--enable-host-shared typically slows the rest of the compiler down by
2114a few %, so you must explicitly enable it.
2115
2116If you want to build both the jit and the regular compiler, it is often
2117best to do this via two separate configure/builds, in separate
2118directories, to avoid imposing the performance cost of
2119--enable-host-shared on the regular compiler.])
c83027f3
NB		 2120 ;;
2121 all:jit:no)
2122 AC_MSG_WARN([--enable-host-shared required to build $language])
2123 add_this_lang=unsupported
2124 ;;
2125 *:jit:no)
2126 # Silently disable.
2127 add_this_lang=unsupported
2128 ;;
2129 esac
2130 ;;
2131 esac
cdfee50a
NS		 2132
2133 # Disable a language that is unsupported by the target.
2134 case "${add_this_lang}: $unsupported_languages " in
2135 no:*) ;;
2136 unsupported:*) ;;
2137 *:*" $language "*)
2138 AC_MSG_WARN([${language} not supported for this target])
e1888513 2139 add_this_lang=unsupported
4fab7234
HPN		 2140 ;;
2141 esac
2142
6de9cd9a 2143 case $add_this_lang in
e1888513 2144 unsupported)
e4c9c075 2145 # Remove language-dependent dirs.
4da3b0f8
ILT		 2146 disabled_target_libs="$disabled_target_libs $target_libs"
2147 noconfigdirs="$noconfigdirs $lang_dirs"
2805b53a 2148 ;;
e1888513
PB		 2149 no)
2150 # Remove language-dependent dirs; still show language as supported.
4da3b0f8
ILT		 2151 disabled_target_libs="$disabled_target_libs $target_libs"
2152 noconfigdirs="$noconfigdirs $lang_dirs"
e1888513
PB		 2153 potential_languages="${potential_languages}${language},"
2154 ;;
cdfee50a 2155 all|yes)
e1888513
PB		 2156 new_enable_languages="${new_enable_languages}${language},"
2157 potential_languages="${potential_languages}${language},"
2805b53a 2158 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
4da3b0f8 2159 enabled_target_libs="$enabled_target_libs $target_libs"
ab9dcd0c
RW		 2160 case "${boot_language}:,$enable_stage1_languages," in
2161 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
340de83f 2162 # Add to (comma-separated) list of stage 1 languages.
ab9dcd0c
RW		 2163 case ",$stage1_languages," in
2164 *,$language,* | ,yes, | ,all,) ;;
2165 *) stage1_languages="${stage1_languages}${language}," ;;
2166 esac
00020c16 2167 # We need to bootstrap any supporting libraries.
5fee5ec3 2168 bootstrap_target_libs=`echo "${bootstrap_target_libs}${target_libs}," | sed "s/ /,/g"`
2805b53a
NN		 2169 ;;
2170 esac
2171 ;;
e4c9c075
PB		 2172 esac
2173 ;;
2174 esac
2175 done
2176
4da3b0f8
ILT		 2177 # Add target libraries which are only needed for disabled languages
2178 # to noconfigdirs.
2179 if test -n "$disabled_target_libs"; then
2180 for dir in $disabled_target_libs; do
2181 case " $enabled_target_libs " in
2182 *" ${dir} "*) ;;
2183 *) noconfigdirs="$noconfigdirs $dir" ;;
2184 esac
2185 done
2186 fi
2187
e1888513 2188 AC_ARG_ENABLE(stage1-languages,
33e39b66
AS		 2189 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2190 [choose additional languages to build during
2191 stage1. Mostly useful for compiler development])],
e1888513
PB		 2192 [case ,${enable_stage1_languages}, in
2193 ,no,|,,)
2194 # Set it to something that will have no effect in the loop below
2195 enable_stage1_languages=c ;;
2196 ,yes,)
2197 enable_stage1_languages=`echo $new_enable_languages | \
2198 sed -e "s/^,//" -e "s/,$//" ` ;;
2199 *,all,*)
2200 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2201 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2202 esac
2203
2204 # Add "good" languages from enable_stage1_languages to stage1_languages,
2205 # while "bad" languages go in missing_languages. Leave no duplicates.
2206 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2207 case $potential_languages in
2208 *,$i,*)
2209 case $stage1_languages in
2210 *,$i,*) ;;
2211 *) stage1_languages="$stage1_languages$i," ;;
2212 esac ;;
2213 *)
2214 case $missing_languages in
2215 *,$i,*) ;;
2216 *) missing_languages="$missing_languages$i," ;;
2217 esac ;;
2218 esac
2219 done])
2220
2221 # Remove leading/trailing commas that were added for simplicity
2222 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
79b4b7d2 2223 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
e1888513
PB		 2224 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2225 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2226
e4c9c075
PB		 2227 if test "x$missing_languages" != x; then
2228 AC_MSG_ERROR([
0cf085e4 2229The following requested languages could not be built: ${missing_languages}
e1888513 2230Supported languages are: ${potential_languages}])
e4c9c075 2231 fi
e4c9c075
PB		 2232 if test "x$new_enable_languages" != "x$enable_languages"; then
2233 echo The following languages will be built: ${new_enable_languages}
e1888513 2234 enable_languages="$new_enable_languages"
e4c9c075 2235 fi
e1888513
PB		 2236
2237 AC_SUBST(stage1_languages)
b2eaac4a 2238 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
e4c9c075
PB		 2239fi
2240
27079765
AH		 2241# Handle --disable-<component> generically.
2242for dir in $configdirs $build_configdirs $target_configdirs ; do
2243 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
ac9e6043
RW		 2244 varname=`echo $dirname | sed -e s/+/_/g`
2245 if eval test x\${enable_${varname}} "=" xno ; then
27079765
AH		 2246 noconfigdirs="$noconfigdirs $dir"
2247 fi
2248done
2249
43c40f3e
RO		 2250# Check for Boehm's garbage collector
2251AC_ARG_ENABLE(objc-gc,
2252[AS_HELP_STRING([--enable-objc-gc],
2253 [enable use of Boehm's garbage collector with the
114bf3f1
MK		 2254 GNU Objective-C runtime])])
2255AC_ARG_WITH([target-bdw-gc],
2256[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2257 [specify prefix directory for installed bdw-gc package.
2258 Equivalent to --with-target-bdw-gc-include=PATH/include
2259 plus --with-target-bdw-gc-lib=PATH/lib])])
2260AC_ARG_WITH([target-bdw-gc-include],
2261[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2262 [specify directories for installed bdw-gc include files])])
2263AC_ARG_WITH([target-bdw-gc-lib],
2264[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2265 [specify directories for installed bdw-gc library])])
2266
2267case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2268 AC_MSG_CHECKING([for bdw garbage collector])
2269 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
825fba52
MK		 2270 dnl no bdw-gw options, assume default locations
2271 AC_MSG_RESULT([using bdw-gc in default locations])
114bf3f1
MK		 2272 else
2273 dnl bdw-gw options, first error checking, complete checking in libobjc
2274 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2275 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2276 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2277 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2278 else
2279 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2280 fi
2281 fi
43c40f3e
RO		 2282esac
2283
e4cba494 2284# Disable libitm, libsanitizer, libvtv if we're not building C++
99776ebd 2285case ,${enable_languages}, in
1007a55c 2286 *,c++,*)
5e9d6aa4 2287 # Disable libitm, libsanitizer if we're not building libstdc++
1007a55c
JW		 2288 case "${noconfigdirs}" in
2289 *target-libstdc++-v3*)
5e9d6aa4 2290 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
1007a55c
JW		 2291 ;;
2292 *) ;;
2293 esac
2294 ;;
99776ebd 2295 *)
e4cba494 2296 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer target-libvtv"
99776ebd
RH		 2297 ;;
2298esac
7cd0cf9c 2299
dc614a83
AB		 2300# If gcc/ is not in the source tree then we'll not be building a
2301# target compiler, assume in that case we don't want to build any
2302# target libraries or tools.
2303#
2304# This was added primarily for the benefit for binutils-gdb who reuse
2305# this configure script, but don't always have target tools available.
2306if test ! -d ${srcdir}/gcc; then
2307 skipdirs="${skipdirs} ${target_configdirs}"
2308fi
2309
9d069a4f
PB		 2310# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2311# $build_configdirs and $target_configdirs.
e4c9c075
PB		 2312# If we have the source for $noconfigdirs entries, add them to $notsupp.
2313
2314notsupp=""
2315for dir in . $skipdirs $noconfigdirs ; do
9d069a4f 2316 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
e4c9c075
PB		 2317 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2318 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2319 if test -r $srcdir/$dirname/configure ; then
2320 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2321 true
2322 else
2323 notsupp="$notsupp $dir"
2324 fi
2325 fi
2326 fi
9d069a4f
PB		 2327 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2328 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2329 if test -r $srcdir/$dirname/configure ; then
2330 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2331 true
2332 else
2333 notsupp="$notsupp $dir"
2334 fi
2335 fi
2336 fi
e4c9c075
PB		 2337 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2338 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2339 if test -r $srcdir/$dirname/configure ; then
2340 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2341 true
2342 else
2343 notsupp="$notsupp $dir"
2344 fi
2345 fi
2346 fi
2347done
2348
e4c9c075
PB		 2349# Quietly strip out all directories which aren't configurable in this tree.
2350# This relies on all configurable subdirectories being autoconfiscated, which
2351# is now the case.
23f6b2f9
PB		 2352build_configdirs_all="$build_configdirs"
2353build_configdirs=
2354for i in ${build_configdirs_all} ; do
2355 j=`echo $i | sed -e s/build-//g`
2356 if test -f ${srcdir}/$j/configure ; then
2357 build_configdirs="${build_configdirs} $i"
2358 fi
2359done
2360
e4c9c075
PB		 2361configdirs_all="$configdirs"
2362configdirs=
2363for i in ${configdirs_all} ; do
2364 if test -f ${srcdir}/$i/configure ; then
2365 configdirs="${configdirs} $i"
2366 fi
2367done
23f6b2f9 2368
e4c9c075
PB		 2369target_configdirs_all="$target_configdirs"
2370target_configdirs=
2371for i in ${target_configdirs_all} ; do
2372 j=`echo $i | sed -e s/target-//g`
2373 if test -f ${srcdir}/$j/configure ; then
2374 target_configdirs="${target_configdirs} $i"
2375 fi
2376done
2377
45b3824d
TS		 2378# libiberty-linker-plugin is special: it doesn't have its own source directory,
2379# so we have to add it after the preceding checks.
2380if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2381then
2382 case " $configdirs " in
2383 *" libiberty "*)
2384 # If we can build libiberty, we can also build libiberty-linker-plugin.
2385 configdirs="$configdirs libiberty-linker-plugin"
2386 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2387 --with-libiberty=../libiberty-linker-plugin";;
2388 *)
2389 AC_MSG_ERROR([libiberty missing]);;
2390 esac
2391fi
2392
fca38047
TS		 2393# Sometimes we have special requirements for the host libiberty.
2394extra_host_libiberty_configure_flags=
2395case " $configdirs " in
15368960 2396 *" lto-plugin "* | *" libcc1 "* | *" gdbserver "*)
fca38047
TS		 2397 # When these are to be built as shared libraries, the same applies to
2398 # libiberty.
2399 extra_host_libiberty_configure_flags=--enable-shared
2400 ;;
04bb15e4
TV		 2401esac
2402AC_SUBST(extra_host_libiberty_configure_flags)
2403
2404# Sometimes we have special requirements for the host zlib.
2405extra_host_zlib_configure_flags=
2406case " $configdirs " in
1c01ebf6
L		 2407 *" bfd "*)
2408 # When bfd is to be built as a shared library, the same applies to
2409 # zlib.
2410 if test "$enable_shared" = "yes"; then
2411 extra_host_zlib_configure_flags=--enable-host-shared
2412 fi
2413 ;;
fca38047 2414esac
1c01ebf6 2415AC_SUBST(extra_host_zlib_configure_flags)
fca38047 2416
e4c9c075
PB		 2417# Produce a warning message for the subdirs we can't configure.
2418# This isn't especially interesting in the Cygnus tree, but in the individual
2419# FSF releases, it's important to let people know when their machine isn't
2420# supported by the one or two programs in a package.
2421
2422if test -n "${notsupp}" && test -z "${norecursion}" ; then
2423 # If $appdirs is non-empty, at least one of those directories must still
2424 # be configured, or we error out. (E.g., if the gas release supports a
2425 # specified target in some subdirs but not the gas subdir, we shouldn't
2426 # pretend that all is well.)
2427 if test -n "$appdirs" ; then
2428 for dir in $appdirs ; do
2429 if test -r $dir/Makefile.in ; then
2430 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2431 appdirs=""
2432 break
2433 fi
23f6b2f9 2434 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
e4c9c075
PB		 2435 appdirs=""
2436 break
2437 fi
2438 fi
2439 done
2440 if test -n "$appdirs" ; then
2441 echo "*** This configuration is not supported by this package." 1>&2
2442 exit 1
2443 fi
2444 fi
2445 # Okay, some application will build, or we don't care to check. Still
2446 # notify of subdirs not getting built.
2447 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2448 echo " ${notsupp}" 1>&2
2449 echo " (Any other directories should still work fine.)" 1>&2
2450fi
2451
2452case "$host" in
2453 *msdosdjgpp*)
2454 enable_gdbtk=no ;;
2455esac
2456
c3a86da9
DJ		 2457# To find our prefix, in gcc_cv_tool_prefix.
2458ACX_TOOL_DIRS
2459
e4c9c075
PB		 2460copy_dirs=
2461
526635cb 2462AC_ARG_WITH([build-sysroot],
33e39b66
AS		 2463 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2464 [use sysroot as the system root during the build])],
526635cb
MM		 2465 [if test x"$withval" != x ; then
2466 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2467 fi],
2468 [SYSROOT_CFLAGS_FOR_TARGET=])
2469AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2470
c8aea42c 2471AC_ARG_WITH([debug-prefix-map],
33e39b66
AS		 2472 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2473 [map A to B, C to D ... in debug information])],
c8aea42c
PB		 2474 [if test x"$withval" != x; then
2475 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2476 for debug_map in $withval; do
2477 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2478 done
2479 fi],
2480 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2481AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2482
1c8bd6a3
PB		 2483# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2484# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2485# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2486# We want to ensure that TARGET libraries (which we know are built with
2487# gcc) are built with "-O2 -g", so include those options when setting
2488# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2489if test "x$CFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2490 if test "x${is_cross_compiler}" = xyes; then
2491 CFLAGS_FOR_TARGET="-g -O2"
2492 else
2493 CFLAGS_FOR_TARGET=$CFLAGS
2494 case " $CFLAGS " in
2495 *" -O2 "*) ;;
2496 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2497 esac
2498 case " $CFLAGS " in
2499 *" -g "* | *" -g3 "*) ;;
2500 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2501 esac
2502 fi
1c8bd6a3
PB		 2503fi
2504AC_SUBST(CFLAGS_FOR_TARGET)
2505
2506if test "x$CXXFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2507 if test "x${is_cross_compiler}" = xyes; then
2508 CXXFLAGS_FOR_TARGET="-g -O2"
2509 else
2510 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2511 case " $CXXFLAGS " in
2512 *" -O2 "*) ;;
2513 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2514 esac
2515 case " $CXXFLAGS " in
2516 *" -g "* | *" -g3 "*) ;;
2517 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2518 esac
2519 fi
1c8bd6a3
PB		 2520fi
2521AC_SUBST(CXXFLAGS_FOR_TARGET)
2522
6f57bdf6
DK		 2523AC_SUBST(LDFLAGS_FOR_TARGET)
2524
e4c9c075
PB		 2525# Handle --with-headers=XXX. If the value is not "yes", the contents of
2526# the named directory are copied to $(tooldir)/sys-include.
2527if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2528 if test x${is_cross_compiler} = xno ; then
2529 echo 1>&2 '***' --with-headers is only supported when cross compiling
2530 exit 1
2531 fi
2532 if test x"${with_headers}" != xyes ; then
c3a86da9 2533 x=${gcc_cv_tool_prefix}
1c710c3c 2534 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
e4c9c075
PB		 2535 fi
2536fi
2537
2538# Handle --with-libs=XXX. If the value is not "yes", the contents of
2539# the name directories are copied to $(tooldir)/lib. Multiple directories
2540# are permitted.
2541if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2542 if test x${is_cross_compiler} = xno ; then
2543 echo 1>&2 '***' --with-libs is only supported when cross compiling
2544 exit 1
2545 fi
2546 if test x"${with_libs}" != xyes ; then
2547 # Copy the libraries in reverse order, so that files in the first named
2548 # library override files in subsequent libraries.
c3a86da9 2549 x=${gcc_cv_tool_prefix}
e4c9c075 2550 for l in ${with_libs}; do
1c710c3c 2551 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
e4c9c075
PB		 2552 done
2553 fi
2554fi
2555
d7f09764 2556# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
e8b05380
PB		 2557#
2558# This is done by determining whether or not the appropriate directory
2559# is available, and by checking whether or not specific configurations
2560# have requested that this magic not happen.
2561#
2562# The command line options always override the explicit settings in
6b1786aa 2563# configure.ac, and the settings in configure.ac override this magic.
e8b05380
PB		 2564#
2565# If the default for a toolchain is to use GNU as and ld, and you don't
2566# want to do that, then you should use the --without-gnu-as and
d7f09764
DN		 2567# --without-gnu-ld options for the configure script. Similarly, if
2568# the default is to use the included zlib and you don't want to do that,
2569# you should use the --with-system-zlib option for the configure script.
e8b05380
PB		 2570
2571if test x${use_gnu_as} = x &&
2572 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2573 with_gnu_as=yes
2574 extra_host_args="$extra_host_args --with-gnu-as"
2575fi
2576
2577if test x${use_gnu_ld} = x &&
5afab7ad 2578 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
e8b05380
PB		 2579 with_gnu_ld=yes
2580 extra_host_args="$extra_host_args --with-gnu-ld"
2581fi
2582
d7f09764
DN		 2583if test x${use_included_zlib} = x &&
2584 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2585 :
2586else
2587 with_system_zlib=yes
2588 extra_host_args="$extra_host_args --with-system-zlib"
2589fi
2590
e8b05380
PB		 2591# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2592# can detect this case.
2593
2594if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2595 with_newlib=yes
2596 extra_host_args="$extra_host_args --with-newlib"
2597fi
2598
e4c9c075
PB		 2599# Handle ${copy_dirs}
2600set fnord ${copy_dirs}
2601shift
2602while test $# != 0 ; do
2603 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2604 :
2605 else
2606 echo Copying $1 to $2
2607
2608 # Use the install script to create the directory and all required
2609 # parent directories.
2610 if test -d $2 ; then
2611 :
2612 else
2613 echo >config.temp
2614 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2615 fi
2616
2617 # Copy the directory, assuming we have tar.
2618 # FIXME: Should we use B in the second tar? Not all systems support it.
2619 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2620
2621 # It is the responsibility of the user to correctly adjust all
2622 # symlinks. If somebody can figure out how to handle them correctly
2623 # here, feel free to add the code.
2624
2625 echo $1 > $2/COPIED
2626 fi
2627 shift; shift
2628done
2629
e8b05380
PB		 2630# Determine a target-dependent exec_prefix that the installed
2631# gcc will search in. Keep this list sorted by triplet, with
2632# the *-*-osname triplets last.
2633md_exec_prefix=
2634case "${target}" in
30b74385 2635 i[[34567]]86-pc-msdosdjgpp*)
e8b05380
PB		 2636 md_exec_prefix=/dev/env/DJDIR/bin
2637 ;;
e8b05380 2638 *-*-hpux* | \
e8b05380 2639 *-*-nto-qnx* | \
6de66370 2640 *-*-solaris2*)
e8b05380
PB		 2641 md_exec_prefix=/usr/ccs/bin
2642 ;;
2643esac
2644
4977bab6
ZW		 2645extra_arflags_for_target=
2646extra_nmflags_for_target=
2a726918 2647extra_ranlibflags_for_target=
671aa708 2648target_makefile_frag=/dev/null
55380b08 2649case "${target}" in
58e24147
AM		 2650 spu-*-*)
2651 target_makefile_frag="config/mt-spu"
2652 ;;
74ae587e 2653 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
4bf6c438
RS		 2654 target_makefile_frag="config/mt-sde"
2655 ;;
1ec3b87b
RS		 2656 mipsisa*-*-elfoabi*)
2657 target_makefile_frag="config/mt-mips-elfoabi"
2658 ;;
08d0963a
RS		 2659 mips*-*-*linux* | mips*-*-gnu*)
2660 target_makefile_frag="config/mt-mips-gnu"
2661 ;;
707f1839
SL		 2662 nios2-*-elf*)
2663 target_makefile_frag="config/mt-nios2-elf"
2664 ;;
76052545
EB		 2665 *-*-linux-android*)
2666 target_makefile_frag="config/mt-android"
2667 ;;
416ac4d4 2668 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
98a5bb3b 2669 target_makefile_frag="config/mt-gnu"
55380b08 2670 ;;
671aa708 2671 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
4977bab6
ZW		 2672 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2673 # commands to handle both 32-bit and 64-bit objects. These flags are
2674 # harmless if we're using GNU nm or ar.
2675 extra_arflags_for_target=" -X32_64"
2676 extra_nmflags_for_target=" -B -X32_64"
55380b08 2677 ;;
c3b7d169
NN		 2678esac
2679
671aa708 2680alphaieee_frag=/dev/null
c3b7d169
NN		 2681case $target in
2682 alpha*-*-*)
2683 # This just makes sure to use the -mieee option to build target libs.
2684 # This should probably be set individually by each library.
2685 alphaieee_frag="config/mt-alphaieee"
55380b08
NN		 2686 ;;
2687esac
701afd4d 2688
55380b08
NN		 2689# If --enable-target-optspace always use -Os instead of -O2 to build
2690# the target libraries, similarly if it is not specified, use -Os
2691# on selected platforms.
671aa708 2692ospace_frag=/dev/null
55380b08
NN		 2693case "${enable_target_optspace}:${target}" in
2694 yes:*)
c3b7d169 2695 ospace_frag="config/mt-ospace"
55380b08
NN		 2696 ;;
2697 :d30v-*)
c3b7d169 2698 ospace_frag="config/mt-d30v"
55380b08 2699 ;;
d9063947 2700 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
c3b7d169 2701 ospace_frag="config/mt-ospace"
55380b08
NN		 2702 ;;
2703 no:* | :*)
2704 ;;
2705 *)
2706 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2707 ;;
2708esac
6599da04 2709
671aa708
NN		 2710# Some systems (e.g., one of the i386-aix systems the gas testers are
2711# using) don't handle "\$" correctly, so don't use it here.
1c710c3c 2712tooldir='${exec_prefix}'/${target_noncanonical}
671aa708
NN		 2713build_tooldir=${tooldir}
2714
671aa708
NN		 2715# Create a .gdbinit file which runs the one in srcdir
2716# and tells GDB to look there for source files.
2717
2718if test -r ${srcdir}/.gdbinit ; then
2719 case ${srcdir} in
2720 .) ;;
2721 *) cat > ./.gdbinit <<EOF
2722# ${NO_EDIT}
2723dir ${srcdir}
2724dir .
2725source ${srcdir}/.gdbinit
2726EOF
2727 ;;
2728 esac
2729fi
2730
6599da04
JM		 2731# Make sure that the compiler is able to generate an executable. If it
2732# can't, we are probably in trouble. We don't care whether we can run the
2733# executable--we might be using a cross compiler--we only care whether it
2734# can be created. At this point the main configure script has set CC.
aeaa0f2f 2735we_are_ok=no
6599da04
JM		 2736echo "int main () { return 0; }" > conftest.c
2737${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
aeaa0f2f
NN		 2738if test $? = 0 ; then
2739 if test -s conftest || test -s conftest.exe ; then
2740 we_are_ok=yes
2741 fi
2742fi
2743case $we_are_ok in
2744 no)
2745 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2746 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2747 rm -f conftest*
2748 exit 1
2749 ;;
2750esac
6599da04
JM		 2751rm -f conftest*
2752
d89f0ad6 2753# Decide which environment variable is used to find dynamic libraries.
fe3d5b7f
NN		 2754case "${host}" in
2755 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
111eeb6e 2756 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
d89f0ad6 2757 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
fe3d5b7f
NN		 2758 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2759esac
fe3d5b7f 2760
d89f0ad6
AL		 2761# On systems where the dynamic library environment variable is PATH,
2762# gcc/ will put dynamic libraries into a subdirectory to avoid adding
2763# built executables to PATH.
2764if test "$RPATH_ENVVAR" = PATH; then
2765 GCC_SHLIB_SUBDIR=/shlib
2766else
2767 GCC_SHLIB_SUBDIR=
2768fi
2769
beeda1d9
JJ		 2770# Adjust the toplevel makefile according to whether bootstrap was selected.
2771case $enable_bootstrap in
2772 yes)
2773 bootstrap_suffix=bootstrap
2774 BUILD_CONFIG=bootstrap-debug
2775 ;;
2776 no)
2777 bootstrap_suffix=no-bootstrap
2778 BUILD_CONFIG=
2779 ;;
2780esac
2781
2782AC_MSG_CHECKING(for default BUILD_CONFIG)
2783
2784AC_ARG_WITH([build-config],
2785 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2786 [use config/NAME.mk build configuration])],
2787 [case $with_build_config in
2788 yes) with_build_config= ;;
2789 no) with_build_config= BUILD_CONFIG= ;;
2790 esac])
2791
2792if test "x${with_build_config}" != x; then
2793 BUILD_CONFIG=$with_build_config
2794else
2795 case $BUILD_CONFIG in
2796 bootstrap-debug)
2797 if echo "int f (void) { return 0; }" > conftest.c &&
2798 ${CC} -c conftest.c &&
2799 mv conftest.o conftest.o.g0 &&
2800 ${CC} -c -g conftest.c &&
2801 mv conftest.o conftest.o.g &&
2802 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2803 :
2804 else
2805 BUILD_CONFIG=
2806 fi
2807 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2808 ;;
2809 esac
2810fi
2811AC_MSG_RESULT($BUILD_CONFIG)
2812AC_SUBST(BUILD_CONFIG)
2813
2814# Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2815AC_MSG_CHECKING([for --enable-vtable-verify])
2816AC_ARG_ENABLE(vtable-verify,
318a4e6d
MF		 2817[AS_HELP_STRING([--enable-vtable-verify],
2818 [Enable vtable verification feature])],
beeda1d9
JJ		 2819[case "$enableval" in
2820 yes) enable_vtable_verify=yes ;;
2821 no) enable_vtable_verify=no ;;
2822 *) enable_vtable_verify=no;;
2823 esac],
2824[enable_vtable_verify=no])
2825AC_MSG_RESULT($enable_vtable_verify)
2826
4977bab6
ZW		 2827# Record target_configdirs and the configure arguments for target and
2828# build configuration in Makefile.
2829target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
23f6b2f9 2830build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
9e1c8fc1 2831bootstrap_fixincludes=no
4977bab6 2832
ad1e5170
JR		 2833# If we are building libgomp, bootstrap it.
2834if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2835 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2836fi
2837
beeda1d9
JJ		 2838# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2839# or bootstrap-ubsan, bootstrap it.
2840if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2841 case "$BUILD_CONFIG" in
170e618e 2842 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
beeda1d9 2843 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
9e1c8fc1 2844 bootstrap_fixincludes=yes
beeda1d9
JJ		 2845 ;;
2846 esac
ac8701fe
L		 2847fi
2848
beeda1d9
JJ		 2849# If we are building libvtv and --enable-vtable-verify, bootstrap it.
2850if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2851 test "$enable_vtable_verify" != no; then
2077db1b
CT		 2852 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2853fi
2854
5fee5ec3
IB		 2855# If we are building libatomic and the list of enabled languages includes the
2856# D frontend, bootstrap it.
2857if echo " ${target_configdirs} " | grep " libatomic " > /dev/null 2>&1; then
2858 case ,${enable_languages}, in
2859 *,d,*)
2860 bootstrap_target_libs=${bootstrap_target_libs}target-libatomic,
2861 ;;
2862 esac
2863fi
2864
4977bab6
ZW		 2865# Determine whether gdb needs tk/tcl or not.
2866# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2867# and in that case we want gdb to be built without tk. Ugh!
2868# In fact I believe gdb is the *only* package directly dependent on tk,
2869# so we should be able to put the 'maybe's in unconditionally and
2870# leave out the maybe dependencies when enable_gdbtk is false. I'm not
2871# 100% sure that that's safe though.
e914a571 2872
b4f96efe 2873gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
4977bab6
ZW		 2874case "$enable_gdbtk" in
2875 no)
2876 GDB_TK="" ;;
e914a571
AC		 2877 yes)
2878 GDB_TK="${gdb_tk}" ;;
4977bab6 2879 *)
e914a571
AC		 2880 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2881 # distro. Eventually someone will fix this and move Insight, nee
2882 # gdbtk to a separate directory.
2883 if test -d ${srcdir}/gdb/gdbtk ; then
2884 GDB_TK="${gdb_tk}"
2885 else
2886 GDB_TK=""
2887 fi
2888 ;;
4977bab6 2889esac
ef9db8d5
DJ		 2890CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2891INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
4977bab6 2892
f9d09df0
TT		 2893# gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
2894# else does, only include them if one of these is built. The Makefile
2895# provides the ordering, so it's enough here to add to the list.
2896case " ${configdirs} " in
2897 *\ gdb\ *)
2898 configdirs="${configdirs} gnulib gdbsupport"
2899 ;;
2900 *\ gdbserver\ *)
2901 configdirs="${configdirs} gnulib gdbsupport"
2902 ;;
f14c9bd4
MF		 2903 *\ sim\ *)
2904 configdirs="${configdirs} gnulib"
2905 ;;
f9d09df0 2906esac
98e5be21 2907
60975492 2908# Strip out unwanted targets.
8b87bb96
NN		 2909
2910# While at that, we remove Makefiles if we were started for recursive
2911# configuration, so that the top-level Makefile reconfigures them,
2912# like we used to do when configure itself was recursive.
8b87bb96 2913
3e54529c
RW		 2914# Loop over modules. We used to use the "$extrasub" feature from Autoconf
2915# but now we're fixing up the Makefile ourselves with the additional
2916# commands passed to AC_CONFIG_FILES. Use separate variables
2917# extrasub-{build,host,target} not because there is any reason to split
2918# the substitutions up that way, but only to remain below the limit of
2919# 99 commands in a script, for HP-UX sed.
da34ca3f
AO		 2920
2921# Do not nest @if/@endif or @unless/@endunless pairs, because
2922# configure will not warn you at all.
8b87bb96 2923
79cd2b23
RW		 2924case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2925 yes:yes:*\ gold\ *:*,c++,*) ;;
2926 yes:yes:*\ gold\ *:*)
2927 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2928 ;;
2929esac
2930
3e54529c 2931extrasub_build=
23f6b2f9 2932for module in ${build_configdirs} ; do
8b87bb96
NN		 2933 if test -z "${no_recursion}" \
2934 && test -f ${build_subdir}/${module}/Makefile; then
2935 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2936 rm -f ${build_subdir}/${module}/Makefile
2937 fi
3e54529c 2938 extrasub_build="$extrasub_build
60975492 2939/^@if build-$module\$/d
5607edfd 2940/^@endif build-$module\$/d
da34ca3f 2941/^@unless build-$module\$/,/^@endunless build-$module\$/d
5607edfd 2942/^@if build-$module-$bootstrap_suffix\$/d
da34ca3f
AO		 2943/^@endif build-$module-$bootstrap_suffix\$/d
2944/^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
8b87bb96 2945done
3e54529c 2946extrasub_host=
8b87bb96 2947for module in ${configdirs} ; do
a6fbc1e2 2948 if test -z "${no_recursion}"; then
f063a9ed 2949 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
a6fbc1e2
AS		 2950 if test -f ${file}; then
2951 echo 1>&2 "*** removing ${file} to force reconfigure"
2952 rm -f ${file}
2953 fi
2954 done
8b87bb96 2955 fi
9e1c8fc1
JJ		 2956 case ${module},${bootstrap_fixincludes} in
2957 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2958 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2959 esac
3e54529c 2960 extrasub_host="$extrasub_host
60975492 2961/^@if $module\$/d
5607edfd 2962/^@endif $module\$/d
da34ca3f 2963/^@unless $module\$/,/^@endunless $module\$/d
9e1c8fc1 2964/^@if $module-$host_bootstrap_suffix\$/d
da34ca3f
AO		 2965/^@endif $module-$host_bootstrap_suffix\$/d
2966/^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
8b87bb96 2967done
3e54529c 2968extrasub_target=
8b87bb96
NN		 2969for module in ${target_configdirs} ; do
2970 if test -z "${no_recursion}" \
2971 && test -f ${target_subdir}/${module}/Makefile; then
2972 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2973 rm -f ${target_subdir}/${module}/Makefile
2974 fi
00020c16
ILT		 2975
2976 # We only bootstrap target libraries listed in bootstrap_target_libs.
2977 case $bootstrap_target_libs in
2978 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2979 *) target_bootstrap_suffix=no-bootstrap ;;
2980 esac
2981
3e54529c 2982 extrasub_target="$extrasub_target
60975492 2983/^@if target-$module\$/d
5607edfd 2984/^@endif target-$module\$/d
da34ca3f 2985/^@unless target-$module\$/,/^@endunless target-$module\$/d
00020c16 2986/^@if target-$module-$target_bootstrap_suffix\$/d
da34ca3f
AO		 2987/^@endif target-$module-$target_bootstrap_suffix\$/d
2988/^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
4977bab6 2989done
f516a7da 2990
3e54529c
RW		 2991# Do the final fixup along with target modules.
2992extrasub_target="$extrasub_target
da34ca3f
AO		 2993/^@if /,/^@endif /d
2994/^@unless /d
2995/^@endunless /d"
4977bab6 2996
4a5e71f2
L		 2997if test "$enable_pgo_build" != "no"; then
2998 extrasub_build="$extrasub_build
2999/^@if pgo-build\$/d
3000/^@endif pgo-build\$/d"
3001fi
3002
4977bab6
ZW		 3003# Create the serialization dependencies. This uses a temporary file.
3004
ade82b16 3005AC_ARG_ENABLE([serial-configure],
33e39b66
AS		 3006[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
3007 [force sequential configuration of
3008 sub-packages for the host, target or build
3009 machine, or all sub-packages])])
bf1d3e81
NN		 3010
3011case ${enable_serial_configure} in
3012 yes)
3013 enable_serial_build_configure=yes
3014 enable_serial_host_configure=yes
3015 enable_serial_target_configure=yes
3016 ;;
3017esac
ade82b16 3018
4977bab6
ZW		 3019# These force 'configure's to be done one at a time, to avoid problems
3020# with contention over a shared config.cache.
3021rm -f serdep.tmp
ade82b16 3022echo '# serdep.tmp' > serdep.tmp
4977bab6 3023olditem=
bf1d3e81 3024test "x${enable_serial_build_configure}" = xyes &&
4977bab6
ZW		 3025for item in ${build_configdirs} ; do
3026 case ${olditem} in
3027 "") ;;
ade82b16 3028 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3029 esac
3030 olditem=${item}
3031done
3032olditem=
bf1d3e81 3033test "x${enable_serial_host_configure}" = xyes &&
4977bab6
ZW		 3034for item in ${configdirs} ; do
3035 case ${olditem} in
3036 "") ;;
ade82b16 3037 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3038 esac
3039 olditem=${item}
3040done
3041olditem=
bf1d3e81 3042test "x${enable_serial_target_configure}" = xyes &&
4977bab6
ZW		 3043for item in ${target_configdirs} ; do
3044 case ${olditem} in
3045 "") ;;
ade82b16 3046 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3047 esac
3048 olditem=${item}
3049done
671aa708
NN		 3050serialization_dependencies=serdep.tmp
3051AC_SUBST_FILE(serialization_dependencies)
fe3d5b7f 3052
ade82b16 3053# Base args. Strip norecursion, cache-file, srcdir, host, build,
1c710c3c 3054# target, nonopt, and variable assignments. These are the ones we
f1a036e4
NC		 3055# might not want to pass down to subconfigures. The exception being
3056# --cache-file=/dev/null, which is used to turn off the use of cache
3057# files altogether, and which should be passed on to subconfigures.
3058# Also strip program-prefix, program-suffix, and program-transform-name,
3059# so that we can pass down a consistent program-transform-name.
1c710c3c 3060baseargs=
29a63921 3061tbaseargs=
1c710c3c
DJ		 3062keep_next=no
3063skip_next=no
3064eval "set -- $ac_configure_args"
44bfc3ac
DJ		 3065for ac_arg
3066do
1c710c3c
DJ		 3067 if test X"$skip_next" = X"yes"; then
3068 skip_next=no
3069 continue
3070 fi
3071 if test X"$keep_next" = X"yes"; then
3072 case $ac_arg in
3073 *\'*)
3074 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3075 esac
3076 baseargs="$baseargs '$ac_arg'"
29a63921 3077 tbaseargs="$tbaseargs '$ac_arg'"
1c710c3c
DJ		 3078 keep_next=no
3079 continue
3080 fi
3081
3082 # Handle separated arguments. Based on the logic generated by
3083 # autoconf 2.59.
3084 case $ac_arg in
3085 *=* | --config-cache | -C | -disable-* | --disable-* \
3086 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3087 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3088 | -with-* | --with-* | -without-* | --without-* | --x)
3089 separate_arg=no
3090 ;;
3091 -*)
3092 separate_arg=yes
3093 ;;
3094 *)
3095 separate_arg=no
3096 ;;
3097 esac
3098
29a63921
AO		 3099 skip_targ=no
3100 case $ac_arg in
3101changequote(,)
3102 --with-* | --without-*)
3103 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3104
3105 case $libopt in
3106 *[-_]include)
3107 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3108 ;;
3109 *[-_]lib)
3110 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3111 ;;
3112 *)
3113 lib=$libopt
3114 ;;
3115 esac
3116changequote([,])
3117
3118 case $lib in
4a9bb2aa 3119 mpc | mpfr | gmp | isl)
29a63921
AO		 3120 # If we're processing --with-$lib, --with-$lib-include or
3121 # --with-$lib-lib, for one of the libs above, and target is
3122 # different from host, don't pass the current argument to any
3123 # target library's configure.
3124 if test x$is_cross_compiler = xyes; then
3125 skip_targ=yes
3126 fi
3127 ;;
3128 esac
3129 ;;
3130 esac
3131
1c710c3c 3132 case "$ac_arg" in
f1a036e4
NC		 3133 --cache-file=/dev/null | \
3134 -cache-file=/dev/null )
3135 # Handled here to avoid the test to skip args below.
3136 baseargs="$baseargs '$ac_arg'"
29a63921 3137 tbaseargs="$tbaseargs '$ac_arg'"
f1a036e4
NC		 3138 # Assert: $separate_arg should always be no.
3139 keep_next=$separate_arg
3140 ;;
1c710c3c
DJ		 3141 --no*)
3142 continue
3143 ;;
3144 --c* | \
3145 --sr* | \
3146 --ho* | \
3147 --bu* | \
3148 --t* | \
3149 --program-* | \
3150 -cache_file* | \
3151 -srcdir* | \
3152 -host* | \
3153 -build* | \
3154 -target* | \
3155 -program-prefix* | \
3156 -program-suffix* | \
3157 -program-transform-name* )
3158 skip_next=$separate_arg
3159 continue
3160 ;;
3161 -*)
3162 # An option. Add it.
3163 case $ac_arg in
3164 *\'*)
3165 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3166 esac
3167 baseargs="$baseargs '$ac_arg'"
29a63921
AO		 3168 if test X"$skip_targ" = Xno; then
3169 tbaseargs="$tbaseargs '$ac_arg'"
3170 fi
1c710c3c
DJ		 3171 keep_next=$separate_arg
3172 ;;
3173 *)
3174 # Either a variable assignment, or a nonopt (triplet). Don't
3175 # pass it down; let the Makefile handle this.
3176 continue
3177 ;;
3178 esac
3179done
3180# Remove the initial space we just introduced and, as these will be
3181# expanded by make, quote '$'.
3182baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
6599da04 3183
43bb47c2
DJ		 3184# Add in --program-transform-name, after --program-prefix and
3185# --program-suffix have been applied to it. Autoconf has already
3186# doubled dollar signs and backslashes in program_transform_name; we want
3187# the backslashes un-doubled, and then the entire thing wrapped in single
3188# quotes, because this will be expanded first by make and then by the shell.
3189# Also, because we want to override the logic in subdir configure scripts to
3190# choose program_transform_name, replace any s,x,x, with s,y,y,.
3191sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3192${program_transform_name}
3193EOF_SED
3194gcc_transform_name=`cat conftestsed.out`
3195rm -f conftestsed.out
3196baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
29a63921 3197tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
d9acb717
RW		 3198if test "$silent" = yes; then
3199 baseargs="$baseargs --silent"
29a63921 3200 tbaseargs="$tbaseargs --silent"
d9acb717 3201fi
0115d4a3 3202baseargs="$baseargs --disable-option-checking"
29a63921 3203tbaseargs="$tbaseargs --disable-option-checking"
43bb47c2 3204
ffedf511
RW		 3205# Record and document user additions to sub configure arguments.
3206AC_ARG_VAR([build_configargs],
3207 [additional configure arguments for build directories])
3208AC_ARG_VAR([host_configargs],
3209 [additional configure arguments for host directories])
3210AC_ARG_VAR([target_configargs],
3211 [additional configure arguments for target directories])
3212
e490616e
ZW		 3213# For the build-side libraries, we just need to pretend we're native,
3214# and not use the same cache file. Multilibs are neither needed nor
3d96b0d0
HPN		 3215# desired. We can't even use the same cache file for all build-side
3216# libraries, as they're compiled differently; some with C, some with
3217# C++ or with different feature-enabling options.
3218build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
e254d6b5 3219
4977bab6
ZW		 3220# For host modules, accept cache file option, or specification as blank.
3221case "${cache_file}" in
3222"") # empty
3223 cache_file_option="" ;;
671aa708 3224/* | [[A-Za-z]]:[[\\/]]* ) # absolute path
4977bab6
ZW		 3225 cache_file_option="--cache-file=${cache_file}" ;;
3226*) # relative path
3227 cache_file_option="--cache-file=../${cache_file}" ;;
3228esac
3229
09438bde
NN		 3230# Host dirs don't like to share a cache file either, horribly enough.
3231# This seems to be due to autoconf 2.5x stupidity.
ffedf511 3232host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
4977bab6 3233
29a63921 3234target_configargs="$target_configargs ${tbaseargs}"
e490616e 3235
6599da04
JM		 3236# Passing a --with-cross-host argument lets the target libraries know
3237# whether they are being built with a cross-compiler or being built
3238# native. However, it would be better to use other mechanisms to make the
3239# sorts of decisions they want to make on this basis. Please consider
3240# this option to be deprecated. FIXME.
aeaa0f2f 3241if test x${is_cross_compiler} = xyes ; then
1c710c3c 3242 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
6599da04
JM		 3243fi
3244
79e0604d
FXC		 3245# Special user-friendly check for native x86_64-linux build, if
3246# multilib is not explicitly enabled.
3247case "$target:$have_compiler:$host:$target:$enable_multilib" in
3248 x86_64-*linux*:yes:$build:$build:)
e640447c 3249 # Make sure we have a development environment that handles 32-bit
79e0604d
FXC		 3250 dev64=no
3251 echo "int main () { return 0; }" > conftest.c
3252 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3253 if test $? = 0 ; then
3254 if test -s conftest || test -s conftest.exe ; then
3255 dev64=yes
3256 fi
3257 fi
3258 rm -f conftest*
3259 if test x${dev64} != xyes ; then
e640447c 3260 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		 3261 fi
3262 ;;
3263esac
3264
dc683a3f
RW		 3265# Default to --enable-multilib.
3266if test x${enable_multilib} = x ; then
3fedb745 3267 target_configargs="--enable-multilib ${target_configargs}"
dc683a3f 3268fi
6599da04 3269
5d4a5ee6
JL		 3270# Pass --with-newlib if appropriate. Note that target_configdirs has
3271# changed from the earlier setting of with_newlib.
aeaa0f2f 3272if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3fedb745 3273 target_configargs="--with-newlib ${target_configargs}"
5d4a5ee6
JL		 3274fi
3275
6b9eb62c
NN		 3276# Different target subdirs use different values of certain variables
3277# (notably CXX). Worse, multilibs use *lots* of different values.
3278# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3279# it doesn't automatically accept command-line overrides of them.
3280# This means it's not safe for target subdirs to share a cache file,
3281# which is disgusting, but there you have it. Hopefully this can be
3282# fixed in future. It's still worthwhile to use a cache file for each
3283# directory. I think.
3284
bebcd931
MS		 3285# Pass the appropriate --build, --host, --target and --cache-file arguments.
3286# We need to pass --target, as newer autoconf's requires consistency
3287# for target_alias and gcc doesn't manage it consistently.
e69bf64b 3288target_configargs="--cache-file=./config.cache ${target_configargs}"
e490616e 3289
b87487b6 3290FLAGS_FOR_TARGET=
bb654703 3291case " $target_configdirs " in
7965440a 3292 *" newlib "*)
3fedb745 3293 case " $target_configargs " in
7965440a 3294 *" --with-newlib "*)
b87487b6 3295 case "$target" in
5d571eaa 3296 *-cygwin*)
443e6238 3297 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
5d571eaa 3298 ;;
b87487b6
AO		 3299 esac
3300
afd7db25 3301 # If we're not building GCC, don't discard standard headers.
ef40bc65 3302 if test -d ${srcdir}/gcc; then
d4eb109c 3303 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
afd7db25
AO		 3304
3305 if test "${build}" != "${host}"; then
3306 # On Canadian crosses, CC_FOR_TARGET will have already been set
3307 # by `configure', so we won't have an opportunity to add -Bgcc/
3308 # to it. This is right: we don't want to search that directory
3309 # for binaries, but we want the header files in there, so add
3310 # them explicitly.
0463992b 3311 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
afd7db25
AO		 3312
3313 # Someone might think of using the pre-installed headers on
3314 # Canadian crosses, in case the installed compiler is not fully
3315 # compatible with the compiler being built. In this case, it
3316 # would be better to flag an error than risking having
3317 # incompatible object files being constructed. We can't
3318 # guarantee that an error will be flagged, but let's hope the
3319 # compiler will do it, when presented with incompatible header
3320 # files.
3321 fi
d4eb109c
AO		 3322 fi
3323
ab50d72b 3324 case "${target}-${is_cross_compiler}" in
f2a0e225 3325 i[[3456789]]86-*-linux*-no)
ab50d72b
DD		 3326 # Here host == target, so we don't need to build gcc,
3327 # so we don't want to discard standard headers.
3328 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
ab50d72b
DD		 3329 ;;
3330 *)
3331 # If we're building newlib, use its generic headers last, but search
3332 # for any libc-related directories first (so make it the last -B
3333 # switch).
3334 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
c03353e2
RIL		 3335
3336 # If we're building libgloss, find the startup file, simulator library
3337 # and linker script.
3338 case " $target_configdirs " in
3339 *" libgloss "*)
3340 # Look for startup file, simulator library and maybe linker script.
3341 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3342 # Look for libnosys.a in case the target needs it.
3343 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3344 # Most targets have the linker script in the source directory.
3345 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3346 ;;
3347 esac
ab50d72b
DD		 3348 ;;
3349 esac
b87487b6 3350 ;;
7965440a
AO		 3351 esac
3352 ;;
b87487b6 3353esac
5d571eaa 3354
b91f0a41 3355case "$target" in
5d571eaa
OS		 3356 x86_64-*mingw* | *-w64-mingw*)
3357 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3358 # however, use a symlink named 'mingw' in ${prefix} .
3359 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3360 ;;
3361 *-mingw*)
3362 # MinGW can't be handled as Cygwin above since it does not use newlib.
3363 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3364 ;;
b91f0a41 3365esac
d4eb109c 3366
6691a79e
ME		 3367# Allow the user to override the flags for
3368# our build compiler if desired.
f019adc1
MF		 3369if test x"${build}" = x"${host}" ; then
3370 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
84401ce5 3371 CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}}
f019adc1
MF		 3372 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3373 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3374fi
6691a79e 3375
d4eb109c
AO		 3376# On Canadian crosses, we'll be searching the right directories for
3377# the previously-installed cross compiler, so don't bother to add
3378# flags for directories within the install tree of the compiler
3379# being built; programs in there won't even run.
ef40bc65 3380if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
b87487b6 3381 # Search for pre-installed headers if nothing else fits.
9124bc53 3382 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
b87487b6 3383fi
d4eb109c 3384
bb654703 3385if test "x${use_gnu_ld}" = x &&
55380b08 3386 echo " ${configdirs} " | grep " ld " > /dev/null ; then
b87487b6 3387 # Arrange for us to find uninstalled linker scripts.
215c351a 3388 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
b87487b6
AO		 3389fi
3390
e88a2c09
DD		 3391# Search for other target-specific linker scripts and such.
3392case "${target}" in
3e19841a
PB		 3393 mep*)
3394 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3395 ;;
9b8ffbb8
OH		 3396 # The VxWorks support for shared libraries is getting in
3397 # incrementally. Make sure it doesn't get activated implicitly:
3398 *vxworks*)
3399 if test "${enable_shared-unset}" = unset ; then
3400 enable_shared=no
3401 # So the build of libraries knows ...
3402 target_configargs="${target_configargs} --disable-shared"
3403 # So gcc knows ...
3404 host_configargs="${host_configargs} --disable-shared"
3405 fi
3406 ;;
e88a2c09
DD		 3407esac
3408
671aa708 3409# Makefile fragments.
7b61653a
PE		 3410for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3411do
3412 eval fragval=\$$frag
3413 if test $fragval != /dev/null; then
3414 eval $frag=${srcdir}/$fragval
3415 fi
3416done
671aa708
NN		 3417AC_SUBST_FILE(host_makefile_frag)
3418AC_SUBST_FILE(target_makefile_frag)
3419AC_SUBST_FILE(alphaieee_frag)
3420AC_SUBST_FILE(ospace_frag)
3421
3422# Miscellanea: directories, flags, etc.
671aa708 3423AC_SUBST(RPATH_ENVVAR)
d89f0ad6 3424AC_SUBST(GCC_SHLIB_SUBDIR)
671aa708
NN		 3425AC_SUBST(tooldir)
3426AC_SUBST(build_tooldir)
ef9db8d5 3427AC_SUBST(CONFIGURE_GDB_TK)
671aa708 3428AC_SUBST(GDB_TK)
ef9db8d5 3429AC_SUBST(INSTALL_GDB_TK)
671aa708
NN		 3430
3431# Build module lists & subconfigure args.
671aa708 3432AC_SUBST(build_configargs)
23f6b2f9 3433AC_SUBST(build_configdirs)
671aa708
NN		 3434
3435# Host module lists & subconfigure args.
3436AC_SUBST(host_configargs)
3437AC_SUBST(configdirs)
aae29963 3438AC_SUBST(target_configdirs)
671aa708
NN		 3439
3440# Target module lists & subconfigure args.
671aa708 3441AC_SUBST(target_configargs)
ee2312f3 3442
671aa708
NN		 3443
3444# Build tools.
0999159b
PB		 3445AC_SUBST(AR_FOR_BUILD)
3446AC_SUBST(AS_FOR_BUILD)
671aa708 3447AC_SUBST(CC_FOR_BUILD)
0999159b 3448AC_SUBST(CFLAGS_FOR_BUILD)
84401ce5
RP		 3449AC_SUBST(CPP_FOR_BUILD)
3450AC_SUBST(CPPFLAGS_FOR_BUILD)
0999159b
PB		 3451AC_SUBST(CXXFLAGS_FOR_BUILD)
3452AC_SUBST(CXX_FOR_BUILD)
3453AC_SUBST(DLLTOOL_FOR_BUILD)
3b5e8ee4 3454AC_SUBST(DSYMUTIL_FOR_BUILD)
0999159b 3455AC_SUBST(GFORTRAN_FOR_BUILD)
632e2a07 3456AC_SUBST(GOC_FOR_BUILD)
b4c522fa 3457AC_SUBST(GDC_FOR_BUILD)
0999159b
PB		 3458AC_SUBST(LDFLAGS_FOR_BUILD)
3459AC_SUBST(LD_FOR_BUILD)
3460AC_SUBST(NM_FOR_BUILD)
3461AC_SUBST(RANLIB_FOR_BUILD)
3462AC_SUBST(WINDMC_FOR_BUILD)
3463AC_SUBST(WINDRES_FOR_BUILD)
671aa708 3464
2abefe3d
PB		 3465# Generate default definitions for YACC, M4, LEX and other programs that run
3466# on the build machine. These are used if the Makefile can't locate these
3467# programs in objdir.
3468MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3469
3470AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3471case " $build_configdirs " in
3472 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2abefe3d
PB		 3473esac
3474
3475AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3476case " $build_configdirs " in
3477 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3478esac
3479
3480AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3481case " $build_configdirs " in
3482 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3483esac
3484
3485AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3486case " $build_configdirs " in
3487 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3488 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3489esac
3490
3491AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3492case " $build_configdirs " in
3493 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3494esac
3495
3496AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3497case " $build_configdirs " in
3498 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3499 *)
3500changequote(,)
d18ff35a 3501 # For an installed makeinfo, we require it to be from texinfo 4.7 or
2abefe3d
PB		 3502 # higher, else we use the "missing" dummy.
3503 if ${MAKEINFO} --version \
d18ff35a 3504 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
2abefe3d
PB		 3505 :
3506 else
3507 MAKEINFO="$MISSING makeinfo"
3508 fi
3509 ;;
3510changequote([,])
3511esac
3512
3513# FIXME: expect and dejagnu may become build tools?
3514
3515AC_CHECK_PROGS(EXPECT, expect, expect)
3516case " $configdirs " in
3517 *" expect "*)
3518 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3519 ;;
3520esac
3521
3522AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3523case " $configdirs " in
3524 *" dejagnu "*)
c394e891 3525 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2abefe3d
PB		 3526 ;;
3527esac
3528
671aa708 3529# Host tools.
2693c0b0
PB		 3530NCN_STRICT_CHECK_TOOLS(AR, ar)
3531NCN_STRICT_CHECK_TOOLS(AS, as)
3532NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3b5e8ee4 3533NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil)
2693c0b0 3534NCN_STRICT_CHECK_TOOLS(LD, ld)
2abefe3d 3535NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2693c0b0 3536NCN_STRICT_CHECK_TOOLS(NM, nm)
8927b7c0
RO		 3537NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3538NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
2693c0b0 3539NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
901119ae 3540NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
2693c0b0
PB		 3541NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3542NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
e4a9a572 3543NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
e7a82751 3544NCN_STRICT_CHECK_TOOLS(READELF, readelf)
671aa708
NN		 3545AC_SUBST(CC)
3546AC_SUBST(CXX)
3547AC_SUBST(CFLAGS)
3548AC_SUBST(CXXFLAGS)
5fee5ec3
IB		 3549AC_SUBST(GDC)
3550AC_SUBST(GDCFLAGS)
671aa708 3551
2abefe3d 3552# Target tools.
e8b05380 3553AC_ARG_WITH([build-time-tools],
33e39b66
AS		 3554 [AS_HELP_STRING([--with-build-time-tools=PATH],
3555 [use given path to find target tools during the build])],
e8b05380
PB		 3556 [case x"$withval" in
3557 x/*) ;;
3558 *)
3559 with_build_time_tools=
3560 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3561 ;;
3562 esac],
3563 [with_build_time_tools=])
3564
2693c0b0
PB		 3565NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3566NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2693c0b0 3567NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2693c0b0 3568NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
632e2a07 3569NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
b4c522fa 3570NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
e8b05380
PB		 3571
3572ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3573ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3574ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3b5e8ee4 3575ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil)
e8b05380
PB		 3576ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3577ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3578ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
9bccfdf5 3579ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
e8b05380 3580ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
e4a9a572 3581ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
8927b7c0 3582ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
e7a82751 3583ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
e8b05380
PB		 3584ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3585ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
901119ae 3586ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
4de997d1 3587
2abefe3d
PB		 3588RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3589
3590GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3591GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3592GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
b3f122e0 3593dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
2abefe3d 3594GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2077db1b 3595 [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		 3596 c++)
3597GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2077db1b 3598 [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		 3599 c++)
3600GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3b5e8ee4 3601GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL)
2abefe3d 3602GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2abefe3d
PB		 3603GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3604 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
632e2a07
ILT		 3605GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3606 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
b4c522fa
IB		 3607GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3608 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
2abefe3d
PB		 3609GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3610GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3611GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
ec8fd1c0 3612GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
2abefe3d 3613GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
e4a9a572 3614GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
2abefe3d 3615GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
e7a82751 3616GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
455c8f48 3617GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
2abefe3d 3618GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
901119ae 3619GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
4de997d1 3620
2abefe3d 3621AC_SUBST(FLAGS_FOR_TARGET)
4de997d1 3622AC_SUBST(RAW_CXX_FOR_TARGET)
be912515 3623
671aa708
NN		 3624# Certain tools may need extra flags.
3625AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3626RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3627NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
6599da04 3628
2abefe3d
PB		 3629# When building target libraries, except in a Canadian cross, we use
3630# the same toolchain as the compiler we just built.
3631COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3632COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3633COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3634if test $host = $build; then
3635 case " $configdirs " in
3636 *" gcc "*)
3637 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3638 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3639 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3640 ;;
3641 esac
3642fi
3643
3644AC_SUBST(COMPILER_AS_FOR_TARGET)
3645AC_SUBST(COMPILER_LD_FOR_TARGET)
3646AC_SUBST(COMPILER_NM_FOR_TARGET)
3647
ee03dc5e
AO		 3648AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3649AC_ARG_ENABLE(maintainer-mode,
33e39b66
AS		 3650[AS_HELP_STRING([--enable-maintainer-mode],
3651 [enable make rules and dependencies not useful
3652 (and sometimes confusing) to the casual installer])],
ee03dc5e
AO		 3653 USE_MAINTAINER_MODE=$enableval,
3654 USE_MAINTAINER_MODE=no)
3655AC_MSG_RESULT($USE_MAINTAINER_MODE)
3656AC_SUBST(MAINTAINER_MODE_TRUE)
3657AC_SUBST(MAINTAINER_MODE_FALSE)
3658if test "$USE_MAINTAINER_MODE" = yes; then
3659 MAINTAINER_MODE_TRUE=
3660 MAINTAINER_MODE_FALSE='#'
3661else
3662 MAINTAINER_MODE_TRUE='#'
3663 MAINTAINER_MODE_FALSE=
3664fi
3665MAINT=$MAINTAINER_MODE_TRUE
3666AC_SUBST(MAINT)dnl
3667
2805b53a
NN		 3668# ---------------------
3669# GCC bootstrap support
3670# ---------------------
3671
3672# Stage specific cflags for build.
3673stage1_cflags="-g"
3674case $build in
3675 vax-*-*)
3676 case ${GCC} in
3677 yes) stage1_cflags="-g -Wa,-J" ;;
3678 *) stage1_cflags="-g -J" ;;
3679 esac ;;
2805b53a 3680esac
0b50988a 3681
2805b53a
NN		 3682AC_SUBST(stage1_cflags)
3683
8efea775
PB		 3684# Enable --enable-checking in stage1 of the compiler.
3685AC_ARG_ENABLE(stage1-checking,
33e39b66
AS		 3686[AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3687 [choose additional checking for stage1 of the compiler])],
8efea775 3688[stage1_checking=--enable-checking=${enable_stage1_checking}],
e643dc23 3689[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
c10b5ea0
JJ		 3690 # For --disable-checking or implicit --enable-checking=release, avoid
3691 # setting --enable-checking=gc in the default stage1 checking for LTO
3692 # bootstraps. See PR62077.
c10b5ea0
JJ		 3693 case $BUILD_CONFIG in
3694 *lto*)
7db11a5a
JJ		 3695 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3696 *)
3697 stage1_checking=--enable-checking=yes,types;;
c10b5ea0 3698 esac
7db11a5a
JJ		 3699 if test "x$enable_checking" = x && \
3700 test -d ${srcdir}/gcc && \
3701 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
c100769b 3702 stage1_checking=--enable-checking=yes,types,extra
7db11a5a 3703 fi
8efea775 3704else
e643dc23 3705 stage1_checking=--enable-checking=$enable_checking,types
8efea775
PB		 3706fi])
3707AC_SUBST(stage1_checking)
3708
2805b53a 3709# Enable -Werror in bootstrap stage2 and later.
2805b53a 3710AC_ARG_ENABLE(werror,
33e39b66 3711[AS_HELP_STRING([--enable-werror],
afd88efc
ML		 3712 [enable -Werror in bootstrap stage2 and later])],
3713[
09a9c095
NN		 3714case ${enable_werror} in
3715 yes) stage2_werror_flag="--enable-werror-always" ;;
3716 *) stage2_werror_flag="" ;;
2805b53a 3717esac
afd88efc
ML		 3718],
3719[
01c712cb
ML		 3720if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3721 case $BUILD_CONFIG in
3722 bootstrap-debug)
3723 stage2_werror_flag="--enable-werror-always" ;;
3724 "")
3725 stage2_werror_flag="--enable-werror-always" ;;
3726 esac
3727fi
afd88efc 3728])
01c712cb 3729
09a9c095 3730AC_SUBST(stage2_werror_flag)
2805b53a 3731
f2689b09
SE		 3732# Specify what files to not compare during bootstrap.
3733
3734compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3735case "$target" in
3736 hppa*64*-*-hpux*) ;;
4f943869 3737 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
f2689b09
SE		 3738esac
3739AC_SUBST(compare_exclusions)
3740
3e54529c
RW		 3741AC_CONFIG_FILES([Makefile],
3742 [sed "$extrasub_build" Makefile |
3743 sed "$extrasub_host" |
3744 sed "$extrasub_target" > mf$$
3745 mv -f mf$$ Makefile],
3746 [extrasub_build="$extrasub_build"
3747 extrasub_host="$extrasub_host"
3748 extrasub_target="$extrasub_target"])
3749AC_OUTPUT
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