configure.ac

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
   2 #   2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
   3 #   Free Software Foundation, Inc.
   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
   7 # the Free Software Foundation; either version 3 of the License, or
   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
  16 # along with this program; see the file COPYING3.  If not see
  17 # <http://www.gnu.org/licenses/>.
  18
  19 ##############################################################################
  20 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
  21
  22 m4_include(config/acx.m4)
  23 m4_include(config/override.m4)
  24 m4_include(config/proginstall.m4)
  25 m4_include(config/elf.m4)
  26 m4_include([libtool.m4])
  27 m4_include([ltoptions.m4])
  28 m4_include([ltsugar.m4])
  29 m4_include([ltversion.m4])
  30 m4_include([lt~obsolete.m4])
  31 m4_include([config/cloog.m4])
  32
  33 AC_INIT(move-if-change)
  34 AC_PREREQ(2.64)
  35 AC_DISABLE_OPTION_CHECKING
  36
  37 progname=$0
  38 # if PWD already has a value, it is probably wrong.
  39 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  40
  41 # Export original configure arguments for use by sub-configures.
  42 # Quote arguments with shell meta charatcers.
  43 TOPLEVEL_CONFIGURE_ARGUMENTS=
  44 set -- "$progname" "$@"
  45 for ac_arg
  46 do
  47   case "$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 $ac_arg"
  56 done
  57 if test "$silent" = yes; then
  58   TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
  59 fi
  60 # Remove the initial space we just introduced and, as these will be
  61 # expanded by make, quote '$'.
  62 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
  63 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
  64
  65 # Find the build, host, and target systems.
  66 ACX_NONCANONICAL_BUILD
  67 ACX_NONCANONICAL_HOST
  68 ACX_NONCANONICAL_TARGET
  69
  70 dnl Autoconf 2.5x and later will set a default program prefix if
  71 dnl --target was used, even if it was the same as --host.  Disable
  72 dnl that behavior.  This must be done before AC_CANONICAL_SYSTEM
  73 dnl to take effect.
  74 test "$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
  79 AC_CANONICAL_SYSTEM
  80 AC_ARG_PROGRAM
  81
  82 m4_pattern_allow([^AS_FOR_TARGET$])dnl
  83 m4_pattern_allow([^AS_FOR_BUILD$])dnl
  84
  85 # Get 'install' or 'install-sh' and its variants.
  86 AC_PROG_INSTALL
  87 ACX_PROG_LN
  88 AC_PROG_LN_S
  89 AC_PROG_SED
  90 AC_PROG_AWK
  91
  92 ### we might need to use some other shell than /bin/sh for running subshells
  93 ### If we are on Windows, search for the shell.  This will permit people
  94 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  95 ### without also having to set CONFIG_SHELL.  This code will work when
  96 ### using bash, which sets OSTYPE.
  97 case "${OSTYPE}" in
  98 *win32*)
  99   if test x${CONFIG_SHELL} = x ; then
 100     if test ! -f /bin/sh ; then
 101       if test x${SHELL} != x && test -f ${SHELL} ; then
 102         CONFIG_SHELL=${SHELL}
 103         export CONFIG_SHELL
 104       else
 105         for prog in sh sh.exe bash bash.exe; do
 106           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 107           for dir in $PATH; do
 108             test -z "$dir" && dir=.
 109             if test -f $dir/$prog; then
 110               CONFIG_SHELL=$dir/$prog
 111               export CONFIG_SHELL
 112               break
 113             fi
 114           done
 115           IFS="$save_ifs"
 116           test -n "${CONFIG_SHELL}" && break
 117         done
 118       fi
 119     fi
 120   fi
 121   ;;
 122 esac
 123
 124 config_shell=${CONFIG_SHELL-/bin/sh}
 125
 126 moveifchange=${srcdir}/move-if-change
 127
 128 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
 129
 130 # We pass INSTALL explicitly to sub-makes.  Make sure that it is not
 131 # a relative path.
 132 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
 133   INSTALL="${srcpwd}/install-sh -c"
 134 fi
 135
 136 # Set srcdir to "." if that's what it is.
 137 # This is important for multilib support.
 138 pwd=`${PWDCMD-pwd}`
 139 if test "${pwd}" = "${srcpwd}" ; then
 140   srcdir=.
 141 fi
 142
 143 topsrcdir=$srcpwd
 144
 145 extra_host_args=
 146
 147 ### To add a new directory to the tree, first choose whether it is a target
 148 ### or a host dependent tool.  Then put it into the appropriate list
 149 ### (library or tools, host or target), doing a dependency sort.
 150
 151 # Subdirs will be configured in the order listed in build_configdirs,
 152 # configdirs, or target_configdirs; see the serialization section below.
 153
 154 # Dependency sorting is only needed when *configuration* must be done in
 155 # a particular order.  In all cases a dependency should be specified in
 156 # the Makefile, whether or not it's implicitly specified here.
 157
 158 # Double entries in build_configdirs, configdirs, or target_configdirs may
 159 # cause circular dependencies and break everything horribly.
 160
 161 # these library is used by various programs built for the build
 162 # environment
 163 #
 164 build_libs="build-libiberty"
 165
 166 # these tools are built for the build environment
 167 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
 168
 169 # these libraries are used by various programs built for the host environment
 170 #
 171 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber gmp mpfr mpc ppl cloog libelf libiconv"
 172
 173 # these tools are built for the host environment
 174 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 175 # know that we are building the simulator.
 176 # binutils, gas and ld appear in that order because it makes sense to run
 177 # "make check" in that particular order.
 178 # If --enable-gold is used, "gold" may replace "ld".
 179 host_tools="texinfo byacc flex bison binutils gas ld fixincludes gcc cgen sid sim gdb make patch prms send-pr gprof etc expect dejagnu ash bash bzip2 m4 autoconf automake libtool diff rcs fileutils shellutils time textutils wdiff find uudecode hello tar gzip indent recode release sed utils guile perl gawk findutils gettext zip fastjar gnattools"
 180
 181 # libgcj represents the runtime libraries only used by gcj.
 182 libgcj="target-libffi \
 183         target-zlib \
 184         target-qthreads \
 185         target-libjava"
 186
 187 # these libraries are built for the target environment, and are built after
 188 # the host libraries and the host tools (which may be a cross compiler)
 189 #
 190 target_libraries="target-libgcc \
 191                 target-libiberty \
 192                 target-libgloss \
 193                 target-newlib \
 194                 target-libgomp \
 195                 target-libstdc++-v3 \
 196                 target-libmudflap \
 197                 target-libssp \
 198                 target-libquadmath \
 199                 target-libgfortran \
 200                 target-boehm-gc \
 201                 ${libgcj} \
 202                 target-libobjc \
 203                 target-libada \
 204                 target-libgo"
 205
 206 # these tools are built using the target libraries, and are intended to
 207 # run only in the target environment
 208 #
 209 # note: any program that *uses* libraries that are in the "target_libraries"
 210 # list belongs in this list.  those programs are also very likely
 211 # candidates for the "native_only" list which follows
 212 #
 213 target_tools="target-examples target-groff target-gperf target-rda"
 214
 215 ################################################################################
 216
 217 ## All tools belong in one of the four categories, and are assigned above
 218 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 219 ## is important because configure will choke if they ever get through.
 220 ## ${configdirs} is directories we build using the host tools.
 221 ## ${target_configdirs} is directories we build using the target tools.
 222 configdirs=`echo ${host_libs} ${host_tools}`
 223 target_configdirs=`echo ${target_libraries} ${target_tools}`
 224 build_configdirs=`echo ${build_libs} ${build_tools}`
 225
 226 m4_divert_text([PARSE_ARGS],
 227 [case $srcdir in
 228   *" "*)
 229 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
 230     AC_MSG_ERROR([path to source, $srcdir, contains spaces])
 231 m4_popdef([AS_MESSAGE_LOG_FD])dnl
 232     ;;
 233 esac
 234 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
 235 ])
 236
 237 ################################################################################
 238
 239 srcname="gnu development package"
 240
 241 # This gets set non-empty for some net releases of packages.
 242 appdirs=""
 243
 244 # Define is_cross_compiler to save on calls to 'test'.
 245 is_cross_compiler=
 246 if test x"${host}" = x"${target}" ; then
 247   is_cross_compiler=no
 248 else
 249   is_cross_compiler=yes
 250 fi
 251
 252 # Find the build and target subdir names.
 253 GCC_TOPLEV_SUBDIRS
 254 # Be sure to cover against remnants of an in-tree build.
 255 if test $srcdir != .  && test -d $srcdir/host-${host_noncanonical}; then
 256   AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
 257 Use a pristine source tree when building in a separate tree])
 258 fi
 259
 260 # Skipdirs are removed silently.
 261 skipdirs=
 262 # Noconfigdirs are removed loudly.
 263 noconfigdirs=""
 264
 265 use_gnu_ld=
 266 # Make sure we don't let GNU ld be added if we didn't want it.
 267 if test x$with_gnu_ld = xno ; then
 268   use_gnu_ld=no
 269   noconfigdirs="$noconfigdirs ld gold"
 270 fi
 271
 272 use_gnu_as=
 273 # Make sure we don't let GNU as be added if we didn't want it.
 274 if test x$with_gnu_as = xno ; then
 275   use_gnu_as=no
 276   noconfigdirs="$noconfigdirs gas"
 277 fi
 278
 279 use_included_zlib=
 280 # Make sure we don't let ZLIB be added if we didn't want it.
 281 if test x$with_system_zlib = xyes ; then
 282   use_included_zlib=no
 283   noconfigdirs="$noconfigdirs zlib"
 284 fi
 285
 286 # some tools are so dependent upon X11 that if we're not building with X,
 287 # it's not even worth trying to configure, much less build, that tool.
 288
 289 case ${with_x} in
 290   yes | "") ;; # the default value for this tree is that X11 is available
 291   no)
 292     skipdirs="${skipdirs} tk itcl libgui"
 293     # We won't be able to build gdbtk without X.
 294     enable_gdbtk=no
 295     ;;
 296   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 297 esac
 298
 299 # Some tools are only suitable for building in a "native" situation.
 300 # Remove these if host!=target.
 301 native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
 302
 303 # Similarly, some are only suitable for cross toolchains.
 304 # Remove these if host=target.
 305 cross_only="target-libgloss target-newlib target-opcodes"
 306
 307 case $is_cross_compiler in
 308   no) skipdirs="${skipdirs} ${cross_only}" ;;
 309   yes) skipdirs="${skipdirs} ${native_only}" ;;
 310 esac
 311
 312 # If both --with-headers and --with-libs are specified, default to
 313 # --without-newlib.
 314 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 315    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 316   if test x"${with_newlib}" = x ; then
 317     with_newlib=no
 318   fi
 319 fi
 320
 321 # Recognize --with-newlib/--without-newlib.
 322 case ${with_newlib} in
 323   no) skipdirs="${skipdirs} target-newlib" ;;
 324   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 325 esac
 326
 327 # Handle --enable-gold, --enable-ld.
 328 # --disable-gold [--enable-ld]
 329 #     Build only ld.  Default option.
 330 # --enable-gold [--enable-ld]
 331 #     Build both gold and ld.  Install gold as "ld.gold", install ld
 332 #     as "ld.bfd" and "ld".
 333 # --enable-gold=default [--enable-ld]
 334 #     Build both gold and ld.  Install gold as "ld.gold" and "ld",
 335 #     install ld as "ld.bfd".
 336 # --enable-gold[=default] --disable-ld
 337 #     Build only gold, which is then installed as both "ld.gold" and "ld".
 338 # --enable-gold --enable-ld=default
 339 #     Build both gold (installed as "ld.gold") and ld (installed as "ld"
 340 #     and ld.bfd).
 341 #     In other words, ld is default
 342 # --enable-gold=default --enable-ld=default
 343 #     Error.
 344
 345 default_ld=
 346 AC_ARG_ENABLE(gold,
 347 [AS_HELP_STRING([[--enable-gold[=ARG]]],
 348                 [build gold @<:@ARG={default,yes,no}@:>@])],
 349 ENABLE_GOLD=$enableval,
 350 ENABLE_GOLD=no)
 351 case "${ENABLE_GOLD}" in
 352   yes|default)
 353     # Check for ELF target.
 354     is_elf=no
 355     case "${target}" in
 356       *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
 357       | *-*-linux* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
 358       | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-solaris2* | *-*-nto*)
 359         case "${target}" in
 360           *-*-linux*aout* | *-*-linux*oldld*)
 361             ;;
 362           *)
 363             is_elf=yes
 364             ;;
 365         esac
 366     esac
 367
 368     if test "$is_elf" = "yes"; then
 369       # Check for target supported by gold.
 370       case "${target}" in
 371         i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-*)
 372           configdirs="$configdirs gold"
 373           if test x${ENABLE_GOLD} = xdefault; then
 374             default_ld=gold
 375           fi
 376           ENABLE_GOLD=yes
 377           ;;
 378       esac
 379     fi
 380     ;;
 381   no)
 382     ;;
 383   *)
 384     AC_MSG_ERROR([invalid --enable-gold argument])
 385     ;;
 386 esac
 387
 388 AC_ARG_ENABLE(ld,
 389 [AS_HELP_STRING([[--enable-ld[=ARG]]],
 390                 [build ld @<:@ARG={default,yes,no}@:>@])],
 391 ENABLE_LD=$enableval,
 392 ENABLE_LD=yes)
 393
 394 case "${ENABLE_LD}" in
 395   default)
 396     if test x${default_ld} != x; then
 397       AC_MSG_ERROR([either gold or ld can be the default ld])
 398     fi
 399     ;;
 400   yes)
 401     ;;
 402   no)
 403     if test x${ENABLE_GOLD} != xyes; then
 404       AC_MSG_WARN([neither ld nor gold are enabled])
 405     fi
 406     configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
 407     ;;
 408   *)
 409     AC_MSG_ERROR([invalid --enable-ld argument])
 410     ;;
 411 esac
 412
 413 # Configure extra directories which are host specific
 414
 415 case "${host}" in
 416   *-cygwin*)
 417     configdirs="$configdirs libtermcap" ;;
 418 esac
 419
 420 # A target can indicate whether a language isn't supported for some reason.
 421 # Only spaces may be used in this macro; not newlines or tabs.
 422 unsupported_languages=
 423
 424 # Remove more programs from consideration, based on the host or
 425 # target this usually means that a port of the program doesn't
 426 # exist yet.
 427
 428 case "${host}" in
 429   hppa*64*-*-*)
 430     noconfigdirs="$noconfigdirs byacc"
 431     ;;
 432   i[[3456789]]86-*-vsta)
 433     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 434     ;;
 435   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 436     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 437     ;;
 438   x86_64-*-mingw*)
 439     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool newlib"
 440     ;;
 441   i[[3456789]]86-*-mingw32*)
 442     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 443     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool newlib"
 444     ;;
 445   i[[3456789]]86-*-beos*)
 446     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 447     ;;
 448   *-*-cygwin*)
 449     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 450     ;;
 451   *-*-netbsd*)
 452     noconfigdirs="$noconfigdirs rcs"
 453     ;;
 454   ppc*-*-pe)
 455     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 456     ;;
 457   powerpc-*-beos*)
 458     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 459     ;;
 460 esac
 461
 462
 463 AC_ARG_ENABLE(libquadmath,
 464 AS_HELP_STRING([--disable-libquadmath],
 465   [do not build libquadmath directory]),
 466 ENABLE_LIBQUADMATH=$enableval,
 467 ENABLE_LIBQUADMATH=yes)
 468 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
 469   noconfigdirs="$noconfigdirs target-libquadmath"
 470 fi
 471
 472
 473 AC_ARG_ENABLE(libquadmath-support,
 474 AS_HELP_STRING([--disable-libquadmath-support],
 475   [disable libquadmath support for Fortran]),
 476 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
 477 ENABLE_LIBQUADMATH_SUPPORT=yes)
 478 enable_libquadmath_support=
 479 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
 480   enable_libquadmath_support=no
 481 fi
 482
 483
 484 AC_ARG_ENABLE(libada,
 485 [AS_HELP_STRING([--enable-libada], [build libada directory])],
 486 ENABLE_LIBADA=$enableval,
 487 ENABLE_LIBADA=yes)
 488 if test "${ENABLE_LIBADA}" != "yes" ; then
 489   noconfigdirs="$noconfigdirs gnattools"
 490 fi
 491
 492 AC_ARG_ENABLE(libssp,
 493 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
 494 ENABLE_LIBSSP=$enableval,
 495 ENABLE_LIBSSP=yes)
 496
 497 # Save it here so that, even in case of --enable-libgcj, if the Java
 498 # front-end isn't enabled, we still get libgcj disabled.
 499 libgcj_saved=$libgcj
 500 case $enable_libgcj in
 501 yes)
 502   # If we reset it here, it won't get added to noconfigdirs in the
 503   # target-specific build rules, so it will be forcibly enabled
 504   # (unless the Java language itself isn't enabled).
 505   libgcj=
 506   ;;
 507 no)
 508   # Make sure we get it printed in the list of not supported target libs.
 509   # Don't disable libffi, though, other languages use it.
 510   noconfigdirs="$noconfigdirs `echo ${libgcj} | sed -e 's/target-libffi//'`"
 511   # Clear libgcj_saved so that even if java is enabled libffi won't be
 512   # built.
 513   libgcj_saved=
 514   ;;
 515 esac
 516
 517
 518 # Disable libmudflap on some systems.
 519 if test x$enable_libmudflap = x ; then
 520     case "${target}" in
 521     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | bfin*-*-uclinux* | *-*-kopensolaris*-gnu)
 522         # Enable libmudflap by default in GNU and friends.
 523         ;;
 524     *-*-freebsd*)
 525         # Enable libmudflap by default in FreeBSD.
 526         ;;
 527     *)
 528         # Disable it by default everywhere else.
 529         noconfigdirs="$noconfigdirs target-libmudflap"
 530         ;;
 531     esac
 532 fi
 533
 534 # Disable libgomp on non POSIX hosted systems.
 535 if test x$enable_libgomp = x ; then
 536     # Enable libgomp by default on hosted POSIX systems.
 537     case "${target}" in
 538     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
 539         ;;
 540     *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
 541         ;;
 542     *-*-solaris2* | *-*-sysv4* | *-*-irix6* | *-*-osf* | *-*-hpux11*)
 543         ;;
 544     *-*-darwin* | *-*-aix*)
 545         ;;
 546     *)
 547         noconfigdirs="$noconfigdirs target-libgomp"
 548         ;;
 549     esac
 550 fi
 551
 552 # Default libgloss CPU subdirectory.
 553 libgloss_dir="$target_cpu"
 554
 555 case "${target}" in
 556   *-*-chorusos)
 557     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 558     ;;
 559   powerpc-*-darwin*)
 560     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 561     noconfigdirs="$noconfigdirs sim target-rda"
 562     ;;
 563   i[[3456789]]86-*-darwin*)
 564     noconfigdirs="$noconfigdirs ld gprof"
 565     noconfigdirs="$noconfigdirs sim target-rda"
 566     ;;
 567   x86_64-*-darwin[[912]]*)
 568     noconfigdirs="$noconfigdirs ld gas gprof"
 569     noconfigdirs="$noconfigdirs sim target-rda"
 570     ;;
 571   *-*-darwin*)
 572     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 573     noconfigdirs="$noconfigdirs sim target-rda"
 574     noconfigdirs="$noconfigdirs ${libgcj}"
 575     ;;
 576   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 577     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 578     ;;
 579   *-*-freebsd*)
 580     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 581     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 582         && test -f /usr/local/include/gmp.h; then
 583       with_gmp=/usr/local
 584     fi
 585
 586     # Skip some stuff that's unsupported on some FreeBSD configurations.
 587     case "${target}" in
 588       i*86-*-*) ;;
 589       alpha*-*-*) ;;
 590       x86_64-*-*) ;;
 591       *)
 592         noconfigdirs="$noconfigdirs ${libgcj}"
 593         ;;
 594     esac
 595     ;;
 596   *-*-kaos*)
 597     # Remove unsupported stuff on all kaOS configurations.
 598     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 599     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 600     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 601     noconfigdirs="$noconfigdirs target-libgloss"
 602     ;;
 603   *-*-netbsd*)
 604     # Skip some stuff on all NetBSD configurations.
 605     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 606
 607     # Skip some stuff that's unsupported on some NetBSD configurations.
 608     case "${target}" in
 609       i*86-*-netbsdelf*) ;;
 610       arm*-*-netbsdelf*) ;;
 611       *)
 612         noconfigdirs="$noconfigdirs ${libgcj}"
 613         ;;
 614     esac
 615     ;;
 616   *-*-netware*)
 617     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 618     ;;
 619   *-*-rtems*)
 620     skipdirs="${skipdirs} target-libiberty"
 621     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 622     ;;
 623     # The tpf target doesn't support gdb yet.
 624   *-*-tpf*)
 625     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 626     ;;
 627   *-*-uclinux*)
 628     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 629     ;;
 630   *-*-vxworks*)
 631     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
 632     ;;
 633   alpha*-dec-osf*)
 634     # ld works, but does not support shared libraries.
 635     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 636     # gas doesn't generate exception information.
 637     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 638     ;;
 639   alpha*-*-*vms*)
 640     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 641     ;;
 642   alpha*-*-linux*)
 643     # newlib is not 64 bit ready
 644     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 645     ;;
 646   alpha*-*-*)
 647     # newlib is not 64 bit ready
 648     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 649     ;;
 650   am33_2.0-*-linux*)
 651     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 652     ;;
 653   sh-*-linux*)
 654     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 655     ;;
 656   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 657     noconfigdirs="$noconfigdirs ${libgcj}"
 658     noconfigdirs="$noconfigdirs target-examples"
 659     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 660     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 661     noconfigdirs="$noconfigdirs expect dejagnu"
 662     # the C++ libraries don't build on top of CE's C libraries
 663     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 664     noconfigdirs="$noconfigdirs target-newlib"
 665     case "${host}" in
 666       *-*-cygwin*) ;; # keep gdb and readline
 667       *) noconfigdirs="$noconfigdirs gdb readline"
 668          ;;
 669     esac
 670     libgloss_dir=wince
 671     ;;
 672   arc-*-*)
 673     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 674     ;;
 675   arm-semi-aof )
 676     ;;
 677   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 678     noconfigdirs="$noconfigdirs ${libgcj}"
 679     libgloss_dir=arm
 680     ;;
 681   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 682     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 683     libgloss_dir=arm
 684     ;;
 685   arm*-*-linux-gnueabi)
 686     noconfigdirs="$noconfigdirs target-qthreads"
 687     case ${with_newlib} in
 688       no) noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 689     esac
 690     libgloss_dir=arm
 691     ;;
 692   arm*-*-symbianelf*)
 693     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 694     libgloss_dir=arm
 695     ;;
 696   arm-*-pe*)
 697     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 698     ;;
 699   thumb-*-coff)
 700     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 701     ;;
 702   thumb-*-elf)
 703     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 704     ;;
 705   thumb-*-pe)
 706     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 707     ;;
 708   arm-*-riscix*)
 709     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 710     ;;
 711   avr-*-*)
 712     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj} target-libssp"
 713     ;;
 714   bfin-*-*)
 715     unsupported_languages="$unsupported_languages java"
 716     noconfigdirs="$noconfigdirs target-boehm-gc"
 717     if test x${is_cross_compiler} != xno ; then
 718       target_configdirs="${target_configdirs} target-bsp target-cygmon"
 719     fi
 720     ;;
 721   c4x-*-* | tic4x-*-*)
 722     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 723     ;;
 724   c54x*-*-* | tic54x-*-*)
 725     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 726     ;;
 727   cr16-*-*)
 728     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 729     ;;
 730   cris-*-* | crisv32-*-*)
 731     unsupported_languages="$unsupported_languages java"
 732     case "${target}" in
 733       *-*-aout)
 734         unsupported_languages="$unsupported_languages fortran"
 735         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 736       *-*-elf) # See PR46792 regarding target-libffi.
 737         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 738       *-*-linux*)
 739         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 740       *)
 741         unsupported_languages="$unsupported_languages fortran"
 742         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 743     esac
 744     libgloss_dir=cris
 745     ;;
 746   crx-*-*)
 747     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 748     ;;
 749   d10v-*-*)
 750     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 751     ;;
 752   d30v-*-*)
 753     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 754     ;;
 755   ep9312-*-elf | ep9312-*-coff)
 756     libgloss_dir=arm
 757     ;;
 758   fr30-*-elf*)
 759     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 760     ;;
 761   frv-*-*)
 762     noconfigdirs="$noconfigdirs ${libgcj}"
 763     ;;
 764   moxie-*-*)
 765     noconfigdirs="$noconfigdirs ${libgcj}"
 766     noconfigdirs="$noconfigdirs gprof"
 767     ;;
 768   h8300*-*-*)
 769     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 770     ;;
 771   h8500-*-*)
 772     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 773     ;;
 774   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 775     ;;
 776   hppa*64*-*-linux* | parisc*64*-*-linux*)
 777     # In this case, it's because the hppa64-linux target is for
 778     # the kernel only at this point and has no libc, and thus no
 779     # headers, crt*.o, etc., all of which are needed by these.
 780     noconfigdirs="$noconfigdirs target-zlib"
 781     ;;
 782   parisc*-*-linux* | hppa*-*-linux*)
 783     ;;
 784   hppa*-*-*elf* | \
 785   hppa*-*-lites* | \
 786   hppa*-*-openbsd* | \
 787   hppa*64*-*-*)
 788     noconfigdirs="$noconfigdirs ${libgcj}"
 789     ;;
 790   hppa*-hp-hpux11*)
 791     noconfigdirs="$noconfigdirs ld shellutils"
 792     ;;
 793   hppa*-*-pro*)
 794     libgloss_dir=pa
 795     ;;
 796   hppa*-*-*)
 797     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 798     # build on HP-UX 10.20.
 799     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 800     ;;
 801   i960-*-*)
 802     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 803     ;;
 804   ia64*-*-elf*)
 805     # No gdb support yet.
 806     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 807     ;;
 808   ia64*-**-hpux*)
 809     # No ld support yet.
 810     noconfigdirs="$noconfigdirs ${libgcj} libgui itcl ld"
 811     ;;
 812   ia64*-*-*vms*)
 813     # No gdb or ld support yet.
 814     noconfigdirs="$noconfigdirs ${libgcj} tix readline mmalloc libgui itcl gdb ld"
 815     ;;
 816   i370-*-opened*)
 817     ;;
 818   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 819     noconfigdirs="$noconfigdirs ${libgcj}"
 820     libgloss_dir=i386
 821     ;;
 822   i[[3456789]]86-*-linux*)
 823     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 824     # not build java stuff by default.
 825     case "${target}" in
 826       *-*-*libc1*)
 827         noconfigdirs="$noconfigdirs ${libgcj}";;
 828     esac
 829
 830     # This section makes it possible to build newlib natively on linux.
 831     # If we are using a cross compiler then don't configure newlib.
 832     if test x${is_cross_compiler} != xno ; then
 833       noconfigdirs="$noconfigdirs target-newlib"
 834     fi
 835     noconfigdirs="$noconfigdirs target-libgloss"
 836     # If we are not using a cross compiler, do configure newlib.
 837     # Note however, that newlib will only be configured in this situation
 838     # if the --with-newlib option has been given, because otherwise
 839     # 'target-newlib' will appear in skipdirs.
 840     ;;
 841   i[[3456789]]86-w64-mingw*)
 842     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 843     ;;
 844   i[[3456789]]86-*-mingw*)
 845     target_configdirs="$target_configdirs target-winsup"
 846     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 847     ;;
 848   x86_64-*-mingw*)
 849     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 850     ;;
 851   *-*-cygwin*)
 852     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 853     noconfigdirs="$noconfigdirs target-gperf target-libgloss"
 854     # always build newlib if winsup directory is present.
 855     if test -d "$srcdir/winsup/cygwin"; then
 856       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 857     elif test -d "$srcdir/newlib"; then
 858       echo "Warning: winsup/cygwin is missing so newlib can't be built."
 859     fi
 860     ;;
 861   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 862   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 863     ;;
 864   i[[3456789]]86-*-pe)
 865     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 866     ;;
 867   i[[3456789]]86-*-sco3.2v5*)
 868     # The linker does not yet know about weak symbols in COFF,
 869     # and is not configured to handle mixed ELF and COFF.
 870     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 871     ;;
 872   i[[3456789]]86-*-sco*)
 873     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 874     ;;
 875   i[[3456789]]86-*-solaris2*)
 876     noconfigdirs="$noconfigdirs target-libgloss"
 877     ;;
 878   i[[3456789]]86-*-sysv4*)
 879     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 880     ;;
 881   i[[3456789]]86-*-beos*)
 882     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 883     ;;
 884   i[[3456789]]86-*-rdos*)
 885     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 886     ;;
 887   m32r-*-*)
 888     noconfigdirs="$noconfigdirs ${libgcj}"
 889     ;;
 890   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 891     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 892     libgloss_dir=m68hc11
 893     ;;
 894   m68k-*-elf*)
 895     noconfigdirs="$noconfigdirs ${libgcj}"
 896     ;;
 897   m68k-*-coff*)
 898     noconfigdirs="$noconfigdirs ${libgcj}"
 899     ;;
 900   m68*-*-* | fido-*-*)
 901     libgloss_dir=m68k
 902     ;;
 903   mcore-*-pe*)
 904   # The EPOC C++ environment does not support exceptions or rtti,
 905   # and so building libstdc++-v3 tends not to always work.
 906     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 907     ;;
 908   mmix-*-*)
 909     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 910     unsupported_languages="$unsupported_languages fortran java"
 911     ;;
 912   mn10200-*-*)
 913     noconfigdirs="$noconfigdirs ${libgcj}"
 914     ;;
 915   mn10300-*-*)
 916     noconfigdirs="$noconfigdirs ${libgcj}"
 917     ;;
 918   mt-*-*)
 919     noconfigdirs="$noconfigdirs sim"
 920     ;;
 921   picochip-*-*)
 922     noconfigdirs="$noconfigdirs target-libiberty"
 923     ;;
 924   powerpc-*-aix*)
 925     # copied from rs6000-*-* entry
 926     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp target-newlib ${libgcj}"
 927     ;;
 928   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 929     target_configdirs="$target_configdirs target-winsup"
 930     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 931     # always build newlib.
 932     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 933     ;;
 934     # This is temporary until we can link against shared libraries
 935   powerpcle-*-solaris*)
 936     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 937     libgloss_dir=rs6000
 938     ;;
 939   powerpc-*-beos*)
 940     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 941     ;;
 942   powerpc-*-eabi)
 943     noconfigdirs="$noconfigdirs ${libgcj}"
 944     libgloss_dir=rs6000
 945     ;;
 946   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 947     libgloss_dir=rs6000
 948     ;;
 949   rs6000-*-lynxos*)
 950     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 951     ;;
 952   rs6000-*-aix*)
 953     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp target-newlib ${libgcj}"
 954     ;;
 955   rs6000-*-*)
 956     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 957     ;;
 958   m68k-apollo-*)
 959     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 960     ;;
 961   microblaze*)
 962     noconfigdirs="$noconfigdirs gprof target-libssp ${libgcj}"
 963     ;;
 964   mips*-sde-elf*)
 965     skipdirs="$skipdirs target-libiberty"
 966     noconfigdirs="$noconfigdirs ${libgcj}"
 967     if test x$with_newlib = xyes; then
 968       noconfigdirs="$noconfigdirs gprof"
 969     fi
 970     libgloss_dir=mips
 971     ;;
 972   mips*-*-irix5*)
 973     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 974     ;;
 975   mips*-*-irix6*)
 976     # Linking libjava exceeds command-line length limits on at least
 977     # IRIX 6.2, but not on IRIX 6.5.
 978     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 979     # <oldham@codesourcery.com>
 980     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 981     ;;
 982   mips*-*-bsd*)
 983     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 984     ;;
 985   mips*-*-linux*)
 986     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 987     ;;
 988   mips*-*-*)
 989     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 990     libgloss_dir=mips
 991     ;;
 992   romp-*-*)
 993     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 994     ;;
 995   sh-*-* | sh64-*-*)
 996     case "${host}" in
 997       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 998       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 999       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
1000       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
1001     esac
1002     case "${target}" in
1003       sh*-*-elf)
1004          noconfigdirs="$noconfigdirs ${libgcj}" ;;
1005       *)
1006          noconfigdirs="$noconfigdirs target-libgloss ${libgcj}" ;;
1007     esac
1008     ;;
1009   sparclet-*-aout* | sparc86x-*-*)
1010     libgloss_dir=sparc
1011     ;;
1012   sparc-*-elf*)
1013     noconfigdirs="$noconfigdirs ${libgcj}"
1014     ;;
1015   sparc64-*-elf*)
1016     noconfigdirs="$noconfigdirs ${libgcj}"
1017     libgloss_dir=sparc
1018     ;;
1019   sparclite-*-*)
1020     noconfigdirs="$noconfigdirs ${libgcj}"
1021     libgloss_dir=sparc
1022     ;;
1023   sparc-*-sunos4*)
1024     noconfigdirs="$noconfigdirs ${libgcj}"
1025     if test x${is_cross_compiler} != xno ; then
1026            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1027     else
1028            use_gnu_ld=no
1029     fi
1030     ;;
1031   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
1032     noconfigdirs="$noconfigdirs ${libgcj}"
1033     ;;
1034   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
1035     ;;
1036   tic6x-*-*)
1037     noconfigdirs="$noconfigdirs gdb sim ${libgcj}"
1038     ;;
1039   v810-*-*)
1040     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
1041     ;;
1042   v850*-*-*)
1043     noconfigdirs="$noconfigdirs ${libgcj}"
1044     ;;
1045   vax-*-vms)
1046     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
1047     ;;
1048   vax-*-*)
1049     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
1050     ;;
1051   xtensa*-*-*)
1052     noconfigdirs="$noconfigdirs ${libgcj}"
1053     ;;
1054   ip2k-*-*)
1055     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
1056     ;;
1057   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
1058     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1059     ;;
1060   *-*-lynxos*)
1061     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
1062     ;;
1063   *-*-*)
1064     noconfigdirs="$noconfigdirs ${libgcj}"
1065     ;;
1066 esac
1067
1068 # If we aren't building newlib, then don't build libgloss, since libgloss
1069 # depends upon some newlib header files.
1070 case "${noconfigdirs}" in
1071   *target-libgloss*) ;;
1072   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1073 esac
1074
1075 # Work in distributions that contain no compiler tools, like Autoconf.
1076 tentative_cc=""
1077 host_makefile_frag=/dev/null
1078 if test -d ${srcdir}/config ; then
1079 case "${host}" in
1080   m68k-hp-hpux*)
1081     # Avoid "too much defining" errors from HPUX compiler.
1082     tentative_cc="cc -Wp,-H256000"
1083     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
1084     # If it's HP/UX ar, this should be harmless.
1085     RANLIB="ar ts"
1086     ;;
1087   m68k-apollo-sysv*)
1088     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
1089     ;;
1090   m68k-apollo-bsd*)
1091     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
1092     # chokes on bfd, the compiler won't let you assign integers to enums, and
1093     # other problems.  Defining CC to gcc is a questionable way to say "don't use
1094     # the apollo compiler" (the preferred version of GCC could be called cc,
1095     # or whatever), but I'm not sure leaving CC as cc is any better...
1096     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
1097     # Used to have BISON=yacc.
1098     tentative_cc=gcc
1099     ;;
1100   m88k-dg-dgux*)
1101     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
1102     ;;
1103   m88k-harris-cxux*)
1104     # Under CX/UX, we want to tell the compiler to use ANSI mode.
1105     tentative_cc="cc -Xa"
1106     host_makefile_frag="config/mh-cxux"
1107     ;;
1108   m88k-motorola-sysv*)
1109     ;;
1110   mips*-dec-ultrix*)
1111     tentative_cc="cc -Wf,-XNg1000"
1112     host_makefile_frag="config/mh-decstation"
1113     ;;
1114   mips*-nec-sysv4*)
1115     # The C compiler on NEC MIPS SVR4 needs bigger tables.
1116     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
1117     host_makefile_frag="config/mh-necv4"
1118     ;;
1119   mips*-sgi-irix4*)
1120     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
1121     # environment.  Also bump switch table size so that cp-parse will
1122     # compile.  Bump string length limit so linker builds.
1123     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
1124     ;;
1125   mips*-*-sysv4*)
1126     host_makefile_frag="config/mh-sysv4"
1127     ;;
1128   mips*-*-sysv*)
1129     # This is for a MIPS running RISC/os 4.52C.
1130
1131     # This is needed for GDB, but needs to be in the top-level make because
1132     # if a library is compiled with the bsd headers and gets linked with the
1133     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
1134     # a different size).
1135     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
1136     # known except to select the sysv environment.  Could we use /proc instead?
1137     # These "sysv environments" and "bsd environments" often end up being a pain.
1138     #
1139     # This is not part of CFLAGS because perhaps not all C compilers have this
1140     # option.
1141     tentative_cc="cc -systype sysv"
1142     ;;
1143   i370-ibm-opened*)
1144     tentative_cc="c89"
1145     ;;
1146   i[[3456789]]86-*-sysv5*)
1147     host_makefile_frag="config/mh-sysv5"
1148     ;;
1149   i[[3456789]]86-*-dgux*)
1150     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
1151     host_makefile_frag="config/mh-dgux386"
1152     ;;
1153   i[[3456789]]86-ncr-sysv4.3*)
1154     # The MetaWare compiler will generate a copyright message unless you
1155     # turn it off by adding the -Hnocopyr flag.
1156     tentative_cc="cc -Hnocopyr"
1157     ;;
1158   i[[3456789]]86-ncr-sysv4*)
1159     # for an NCR 3000 (i486/SVR4) system.
1160     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
1161     # This compiler not only emits obnoxious copyright messages every time
1162     # you run it, but it chokes and dies on a whole bunch of GNU source
1163     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
1164     tentative_cc="/usr/ccs/ATT/cc"
1165     host_makefile_frag="config/mh-ncr3000"
1166     ;;
1167   i[[3456789]]86-*-sco3.2v5*)
1168     ;;
1169   i[[3456789]]86-*-sco*)
1170     # The native C compiler botches some simple uses of const.  Unfortunately,
1171     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
1172     tentative_cc="cc -Dconst="
1173     host_makefile_frag="config/mh-sco"
1174     ;;
1175   i[[3456789]]86-*-udk*)
1176     host_makefile_frag="config/mh-sysv5"
1177     ;;
1178   i[[3456789]]86-*-solaris2*)
1179     host_makefile_frag="config/mh-sysv4"
1180     ;;
1181   i[[3456789]]86-*-msdosdjgpp*)
1182     host_makefile_frag="config/mh-djgpp"
1183     ;;
1184   *-cygwin*)
1185     ACX_CHECK_CYGWIN_CAT_WORKS
1186     host_makefile_frag="config/mh-cygwin"
1187     ;;
1188   *-mingw*)
1189     host_makefile_frag="config/mh-mingw"
1190     ;;
1191   *-interix*)
1192     host_makefile_frag="config/mh-interix"
1193     ;;
1194   vax-*-ultrix2*)
1195     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
1196     tentative_cc=gcc
1197     ;;
1198   *-*-solaris2*)
1199     host_makefile_frag="config/mh-solaris"
1200     ;;
1201   m68k-sun-sunos*)
1202     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
1203     # without overflowing the jump tables (-J says to use a 32 bit table)
1204     tentative_cc="cc -J"
1205     ;;
1206   hppa*-hp-hpux10*)
1207     tentative_cc="cc -Wp,-H256000"
1208     host_makefile_frag="config/mh-pa-hpux10"
1209     ;;
1210   hppa*-hp-hpux* | hppa*-*-hiux*)
1211     tentative_cc="cc -Wp,-H256000"
1212     host_makefile_frag="config/mh-pa"
1213     ;;
1214   hppa*-*)
1215     host_makefile_frag="config/mh-pa"
1216     ;;
1217   *-hp-hpux* | *-*-hiux*)
1218     tentative_cc="cc -Wp,-H256000"
1219     ;;
1220   rs6000-*-lynxos*)
1221     # /bin/cc is less than useful for our purposes.  Always use GCC
1222     tentative_cc="/usr/cygnus/progressive/bin/gcc"
1223     host_makefile_frag="config/mh-lynxrs6k"
1224     ;;
1225   *-*-darwin*)
1226     host_makefile_frag="config/mh-darwin"
1227     ;;
1228   powerpc-*-aix*)
1229     host_makefile_frag="config/mh-ppc-aix"
1230     ;;
1231   rs6000-*-aix*)
1232     host_makefile_frag="config/mh-ppc-aix"
1233     ;;
1234   *-*-lynxos*)
1235     # /bin/cc is less than useful for our purposes.  Always use GCC
1236     tentative_cc="/bin/gcc"
1237     ;;
1238   *-*-sysv4*)
1239     host_makefile_frag="config/mh-sysv4"
1240     ;;
1241   # This is placed last to prevent interfering with the cases above.
1242   i[[3456789]]86-*-*)
1243     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
1244     host_makefile_frag="config/mh-x86omitfp"
1245     ;;
1246 esac
1247 fi
1248
1249 # If we aren't going to be using gcc, see if we can extract a definition
1250 # of CC from the fragment.
1251 # Actually, use the 'pre-extracted' version above.
1252 if test -z "${CC}" && test "${build}" = "${host}" ; then
1253   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
1254   found=
1255   for dir in $PATH; do
1256     test -z "$dir" && dir=.
1257     if test -f $dir/gcc; then
1258       found=yes
1259       break
1260     fi
1261   done
1262   IFS="$save_ifs"
1263   if test -z "${found}" && test -n "${tentative_cc}" ; then
1264     CC=$tentative_cc
1265   fi
1266 fi
1267
1268 if test "${build}" != "${host}" ; then
1269   AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1270   AS_FOR_BUILD=${AS_FOR_BUILD-as}
1271   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1272   CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1273   GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj}
1274   GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1275   GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1276   DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1277   LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1278   NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1279   RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1280   WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1281   WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1282 else
1283   AR_FOR_BUILD="\$(AR)"
1284   AS_FOR_BUILD="\$(AS)"
1285   CC_FOR_BUILD="\$(CC)"
1286   CXX_FOR_BUILD="\$(CXX)"
1287   GCJ_FOR_BUILD="\$(GCJ)"
1288   GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1289   GOC_FOR_BUILD="\$(GOC)"
1290   DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1291   LD_FOR_BUILD="\$(LD)"
1292   NM_FOR_BUILD="\$(NM)"
1293   RANLIB_FOR_BUILD="\$(RANLIB)"
1294   WINDRES_FOR_BUILD="\$(WINDRES)"
1295   WINDMC_FOR_BUILD="\$(WINDMC)"
1296 fi
1297
1298 AC_PROG_CC
1299 AC_PROG_CXX
1300
1301 # We must set the default linker to the linker used by gcc for the correct
1302 # operation of libtool.  If LD is not defined and we are using gcc, try to
1303 # set the LD default to the ld used by gcc.
1304 if test -z "$LD"; then
1305   if test "$GCC" = yes; then
1306     case $build in
1307     *-*-mingw*)
1308       gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1309     *)
1310       gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1311     esac
1312     case $gcc_prog_ld in
1313     # Accept absolute paths.
1314     [[\\/]* | [A-Za-z]:[\\/]*)]
1315       LD="$gcc_prog_ld" ;;
1316     esac
1317   fi
1318 fi
1319
1320 ACX_PROG_GNAT
1321 ACX_PROG_CMP_IGNORE_INITIAL
1322
1323 # See if we are building gcc with C++.
1324 AC_ARG_ENABLE(build-with-cxx,
1325 [AS_HELP_STRING([--enable-build-with-cxx],
1326                 [build with C++ compiler instead of C compiler])],
1327 ENABLE_BUILD_WITH_CXX=$enableval,
1328 ENABLE_BUILD_WITH_CXX=no)
1329
1330 # Used for setting $lt_cv_objdir
1331 _LT_CHECK_OBJDIR
1332
1333 # Check for GMP, MPFR and MPC
1334 gmplibs="-lmpc -lmpfr -lgmp"
1335 gmpinc=
1336 have_gmp=no
1337
1338 # Specify a location for mpc
1339 # check for this first so it ends up on the link line before mpfr.
1340 AC_ARG_WITH(mpc,
1341 [AS_HELP_STRING([--with-mpc=PATH],
1342                 [specify prefix directory for installed MPC package.
1343                  Equivalent to --with-mpc-include=PATH/include
1344                  plus --with-mpc-lib=PATH/lib])])
1345 AC_ARG_WITH(mpc-include,
1346 [AS_HELP_STRING([--with-mpc-include=PATH],
1347                 [specify directory for installed MPC include files])])
1348 AC_ARG_WITH(mpc-lib,
1349 [AS_HELP_STRING([--with-mpc-lib=PATH],
1350                 [specify directory for the installed MPC library])])
1351
1352 if test "x$with_mpc" != x; then
1353   gmplibs="-L$with_mpc/lib $gmplibs"
1354   gmpinc="-I$with_mpc/include $gmpinc"
1355 fi
1356 if test "x$with_mpc_include" != x; then
1357   gmpinc="-I$with_mpc_include $gmpinc"
1358 fi
1359 if test "x$with_mpc_lib" != x; then
1360   gmplibs="-L$with_mpc_lib $gmplibs"
1361 fi
1362 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1363   gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1364   gmpinc='-I$$s/mpc/src '"$gmpinc"
1365   # Do not test the mpc version.  Assume that it is sufficient, since
1366   # it is in the source tree, and the library has not been built yet
1367   # but it would be included on the link line in the version check below
1368   # hence making the test fail.
1369   have_gmp=yes
1370 fi
1371
1372 # Specify a location for mpfr
1373 # check for this first so it ends up on the link line before gmp.
1374 AC_ARG_WITH(mpfr-dir,
1375 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1376 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1377 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1378
1379 AC_ARG_WITH(mpfr,
1380 [AS_HELP_STRING([--with-mpfr=PATH],
1381                 [specify prefix directory for installed MPFR package.
1382                  Equivalent to --with-mpfr-include=PATH/include
1383                  plus --with-mpfr-lib=PATH/lib])])
1384 AC_ARG_WITH(mpfr-include,
1385 [AS_HELP_STRING([--with-mpfr-include=PATH],
1386                 [specify directory for installed MPFR include files])])
1387 AC_ARG_WITH(mpfr-lib,
1388 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1389                 [specify directory for the installed MPFR library])])
1390
1391 if test "x$with_mpfr" != x; then
1392   gmplibs="-L$with_mpfr/lib $gmplibs"
1393   gmpinc="-I$with_mpfr/include $gmpinc"
1394 fi
1395 if test "x$with_mpfr_include" != x; then
1396   gmpinc="-I$with_mpfr_include $gmpinc"
1397 fi
1398 if test "x$with_mpfr_lib" != x; then
1399   gmplibs="-L$with_mpfr_lib $gmplibs"
1400 fi
1401 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1402   gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir $gmplibs"
1403   gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
1404   extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir"
1405   # Do not test the mpfr version.  Assume that it is sufficient, since
1406   # it is in the source tree, and the library has not been built yet
1407   # but it would be included on the link line in the version check below
1408   # hence making the test fail.
1409   have_gmp=yes
1410 fi
1411
1412 # Specify a location for gmp
1413 AC_ARG_WITH(gmp-dir,
1414 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1415 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1416 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1417
1418 AC_ARG_WITH(gmp,
1419 [AS_HELP_STRING([--with-gmp=PATH],
1420                 [specify prefix directory for the installed GMP package.
1421                  Equivalent to --with-gmp-include=PATH/include
1422                  plus --with-gmp-lib=PATH/lib])])
1423 AC_ARG_WITH(gmp-include,
1424 [AS_HELP_STRING([--with-gmp-include=PATH],
1425                 [specify directory for installed GMP include files])])
1426 AC_ARG_WITH(gmp-lib,
1427 [AS_HELP_STRING([--with-gmp-lib=PATH],
1428                 [specify directory for the installed GMP library])])
1429
1430
1431 if test "x$with_gmp" != x; then
1432   gmplibs="-L$with_gmp/lib $gmplibs"
1433   gmpinc="-I$with_gmp/include $gmpinc"
1434 fi
1435 if test "x$with_gmp_include" != x; then
1436   gmpinc="-I$with_gmp_include $gmpinc"
1437 fi
1438 if test "x$with_gmp_lib" != x; then
1439   gmplibs="-L$with_gmp_lib $gmplibs"
1440 fi
1441 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1442   gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1443   gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1444   extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1445   extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1446   # Do not test the gmp version.  Assume that it is sufficient, since
1447   # it is in the source tree, and the library has not been built yet
1448   # but it would be included on the link line in the version check below
1449   # hence making the test fail.
1450   have_gmp=yes
1451 fi
1452
1453 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1454   have_gmp=yes
1455   saved_CFLAGS="$CFLAGS"
1456   CFLAGS="$CFLAGS $gmpinc"
1457   # Check for the recommended and required versions of GMP.
1458   AC_MSG_CHECKING([for the correct version of gmp.h])
1459   AC_TRY_COMPILE([#include "gmp.h"],[
1460   #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1461   #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1462   #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,0)
1463   choke me
1464   #endif
1465   ], [AC_TRY_COMPILE([#include <gmp.h>],[
1466   #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1467   #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1468   #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1469   choke me
1470   #endif
1471   ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1472    [AC_MSG_RESULT([no]); have_gmp=no])
1473
1474   # If we have GMP, check the MPFR version.
1475   if test x"$have_gmp" = xyes; then
1476     # Check for the recommended and required versions of MPFR.
1477     AC_MSG_CHECKING([for the correct version of mpfr.h])
1478     AC_TRY_COMPILE([#include <gmp.h>
1479     #include <mpfr.h>],[
1480     #if MPFR_VERSION < MPFR_VERSION_NUM(2,3,1)
1481     choke me
1482     #endif
1483     ], [AC_TRY_COMPILE([#include <gmp.h>
1484     #include <mpfr.h>],[
1485     #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1486     choke me
1487     #endif
1488     ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1489      [AC_MSG_RESULT([no]); have_gmp=no])
1490   fi
1491
1492   # Check for the MPC header version.
1493   if test x"$have_gmp" = xyes ; then
1494     # Check for the recommended and required versions of MPC.
1495     AC_MSG_CHECKING([for the correct version of mpc.h])
1496     AC_TRY_COMPILE([#include <mpc.h>],[
1497     #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1498     choke me
1499     #endif
1500     ], [AC_TRY_COMPILE([#include <mpc.h>],[
1501     #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1502     choke me
1503     #endif
1504     ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1505      [AC_MSG_RESULT([no]); have_gmp=no])
1506   fi
1507
1508   # Now check the MPFR library.
1509   if test x"$have_gmp" = xyes; then
1510     saved_LIBS="$LIBS"
1511     LIBS="$LIBS $gmplibs"
1512     AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1513     AC_TRY_LINK([#include <mpc.h>],[
1514     mpfr_t n;
1515     mpfr_t x;
1516     mpc_t c;
1517     int t;
1518     mpfr_init (n);
1519     mpfr_init (x);
1520     mpfr_atan2 (n, n, x, GMP_RNDN);
1521     mpfr_erfc (n, x, GMP_RNDN);
1522     mpfr_subnormalize (x, t, GMP_RNDN);
1523     mpfr_clear(n);
1524     mpfr_clear(x);
1525     mpc_init2 (c, 53);
1526     mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1527     mpc_cosh (c, c, MPC_RNDNN);
1528     mpc_pow (c, c, c, MPC_RNDNN);
1529     mpc_acosh (c, c, MPC_RNDNN);
1530     mpc_clear (c);
1531     ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1532     LIBS="$saved_LIBS"
1533   fi
1534
1535   CFLAGS="$saved_CFLAGS"
1536
1537 # The library versions listed in the error message below should match
1538 # the HARD-minimums enforced above.
1539   if test x$have_gmp != xyes; then
1540     AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.3.1+ and MPC 0.8.0+.
1541 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1542 their locations.  Source code for these libraries can be found at
1543 their respective hosting sites as well as at
1544 ftp://gcc.gnu.org/pub/gcc/infrastructure/.  See also
1545 http://gcc.gnu.org/install/prerequisites.html for additional info.  If
1546 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1547 make sure that you have installed both the libraries and the header
1548 files.  They may be located in separate packages.])
1549   fi
1550 fi
1551
1552 # Flags needed for both GMP, MPFR and/or MPC.
1553 AC_SUBST(gmplibs)
1554 AC_SUBST(gmpinc)
1555 AC_SUBST(extra_mpfr_configure_flags)
1556 AC_SUBST(extra_mpc_gmp_configure_flags)
1557 AC_SUBST(extra_mpc_mpfr_configure_flags)
1558
1559 # Allow host libstdc++ to be specified for static linking with PPL.
1560 AC_ARG_WITH(host-libstdcxx,
1561 [AS_HELP_STRING([--with-host-libstdcxx=L],
1562                 [use linker arguments L to link with libstdc++
1563                  when linking with PPL])])
1564
1565 case $with_host_libstdcxx in
1566   no|yes)
1567     AC_MSG_ERROR([-with-host-libstdcxx needs an argument])
1568     ;;
1569 esac
1570
1571 # Linker flags to use for stage1 or when not boostrapping.
1572 AC_ARG_WITH(stage1-ldflags,
1573 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1574 [if test "$withval" = "no" -o "$withval" = "yes"; then
1575    stage1_ldflags=
1576  else
1577    stage1_ldflags=$withval
1578  fi],
1579 [stage1_ldflags=])
1580 AC_SUBST(stage1_ldflags)
1581
1582 # Libraries to use for stage1 or when not bootstrapping.
1583 AC_ARG_WITH(stage1-libs,
1584 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1585 [if test "$withval" = "no" -o "$withval" = "yes"; then
1586    stage1_libs=
1587  else
1588    stage1_libs=$withval
1589  fi],
1590 [stage1_libs=$with_host_libstdcxx])
1591 AC_SUBST(stage1_libs)
1592
1593 # Libraries to use for stage2 and later builds.  This defaults to the
1594 # argument passed to --with-host-libstdcxx.
1595 AC_ARG_WITH(boot-libs,
1596 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1597 [if test "$withval" = "no" -o "$withval" = "yes"; then
1598    poststage1_libs=
1599  else
1600    poststage1_libs=$withval
1601  fi],
1602 [poststage1_libs=$with_host_libstdcxx])
1603 AC_SUBST(poststage1_libs)
1604
1605 # Linker flags to use for stage2 and later builds.
1606 AC_ARG_WITH(boot-ldflags,
1607 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1608                 [linker flags for stage2 and later])],
1609 [if test "$withval" = "no" -o "$withval" = "yes"; then
1610    poststage1_ldflags=
1611  else
1612    poststage1_ldflags=$withval
1613  fi],
1614 [poststage1_ldflags=
1615  # In stages 2 and 3, default to linking libstdc++ and libgcc
1616  # statically.  But if the user explicitly specified the libraries to
1617  # use, trust that they are doing what they want.
1618  if test "$poststage1_libs" = ""; then
1619    poststage1_ldflags="-static-libstdc++ -static-libgcc"
1620  fi])
1621 AC_SUBST(poststage1_ldflags)
1622
1623 # Check for PPL
1624 ppllibs=" -lppl_c -lppl -lgmpxx"
1625 pplinc=
1626
1627 AC_ARG_WITH(ppl,
1628 [AS_HELP_STRING([--with-ppl=PATH],
1629                 [specify prefix directory for the installed PPL package.
1630                  Equivalent to --with-ppl-include=PATH/include
1631                  plus --with-ppl-lib=PATH/lib])])
1632 AC_ARG_WITH(ppl-include,
1633 [AS_HELP_STRING([--with-ppl-include=PATH],
1634                 [specify directory for installed PPL include files])])
1635 AC_ARG_WITH(ppl-lib,
1636 [AS_HELP_STRING([--with-ppl-lib=PATH],
1637                 [specify directory for the installed PPL library])])
1638
1639 case $with_ppl in
1640   no)
1641     ppllibs=
1642     ;;
1643   "" | yes)
1644     ;;
1645   *)
1646     ppllibs="-L$with_ppl/lib -lppl_c -lppl -lgmpxx"
1647     pplinc="-I$with_ppl/include $pplinc"
1648     ;;
1649 esac
1650 if test "x$with_ppl_include" != x; then
1651   pplinc="-I$with_ppl_include $pplinc"
1652 fi
1653 if test "x$with_ppl_lib" != x; then
1654   ppllibs="-L$with_ppl_lib -lppl_c -lppl -lgmpxx"
1655 fi
1656 if test "x$with_ppl$with_ppl_include$with_ppl_lib" = x && test -d ${srcdir}/ppl; then
1657   ppllibs='-L$$r/$(HOST_SUBDIR)/ppl/interfaces/C/'"$lt_cv_objdir"' -L$$r/$(HOST_SUBDIR)/ppl/src/'"$lt_cv_objdir"' -lppl_c -lppl -lgmpxx '
1658   pplinc='-I$$r/$(HOST_SUBDIR)/ppl/src -I$$r/$(HOST_SUBDIR)/ppl/interfaces/C '
1659   enable_ppl_version_check=no
1660 fi
1661
1662 AC_ARG_ENABLE(ppl-version-check,
1663 [AS_HELP_STRING([--disable-ppl-version-check],
1664                 [disable check for PPL version])],
1665 ENABLE_PPL_CHECK=$enableval,
1666 ENABLE_PPL_CHECK=yes)
1667
1668 if test "x$with_ppl" != "xno" -a "${ENABLE_PPL_CHECK}" = "yes"; then
1669   saved_CFLAGS="$CFLAGS"
1670   CFLAGS="$CFLAGS $pplinc $gmpinc"
1671   AC_MSG_CHECKING([for version 0.11 (or later revision) of PPL])
1672   AC_TRY_COMPILE([#include "ppl_c.h"],[
1673   #if PPL_VERSION_MAJOR != 0 || PPL_VERSION_MINOR < 11
1674   choke me
1675   #endif
1676   ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); ppllibs= ; pplinc= ; with_ppl=no ])
1677   CFLAGS="$saved_CFLAGS"
1678 fi
1679
1680 # Flags needed for PPL
1681 AC_SUBST(ppllibs)
1682 AC_SUBST(pplinc)
1683
1684
1685 # Check for CLOOG
1686
1687 dnl Provide configure switches and initialize clooginc & clooglibs
1688 dnl with user input.
1689 CLOOG_INIT_FLAGS
1690 if test "x$with_ppl" = "xno"; then
1691   dnl Only execute fail-action, if CLooG has been requested.
1692   CLOOG_REQUESTED([graphite_requested=yes], [graphite_requested=no])
1693   if test "${graphite_requested}" = yes; then
1694     AC_MSG_ERROR([Unable to find a usable PPL.  See config.log for details.])
1695   fi
1696   with_cloog=no
1697 fi
1698 if test "x${with_cloog}" = x && test "x${with_cloog_include}" = x \
1699   && test "x${with_cloog_lib}" = x && test -d ${srcdir}/cloog; then
1700   clooglibs='-L$$r/$(HOST_SUBDIR)/cloog/'"$lt_cv_objdir"' '
1701   clooginc='-I$$r/$(HOST_SUBDIR)/cloog/include -I$$s/cloog/include '
1702 fi
1703 if test "x$with_cloog" != "xno"; then
1704   dnl The minimal version of CLooG required for Graphite.
1705   dnl
1706   dnl If we use CLooG-Legacy, the provided version information is
1707   dnl ignored.
1708   CLOOG_CHECK_VERSION(0,16,1)
1709
1710   dnl Only execute fail-action, if CLooG has been requested.
1711   CLOOG_IF_FAILED([
1712     AC_MSG_ERROR([Unable to find a usable CLooG.  See config.log for details.])])
1713 fi
1714
1715 # Check for LTO support.
1716 AC_ARG_ENABLE(lto,
1717 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1718 enable_lto=$enableval,
1719 enable_lto=yes; default_enable_lto=yes)
1720
1721 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1722   build_lto_plugin=yes
1723 ],[if test x"$default_enable_lto" = x"yes" ; then
1724     case $target in
1725       *-apple-darwin* | *-cygwin* | *-mingw*) ;;
1726       # On other non-ELF platforms, LTO has yet to be validated.
1727       *) enable_lto=no ;;
1728     esac
1729   else
1730   # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1731   # It would also be nice to check the binutils support, but we don't
1732   # have gcc_GAS_CHECK_FEATURE available here.  For now, we'll just
1733   # warn during gcc/ subconfigure; unless you're bootstrapping with
1734   # -flto it won't be needed until after installation anyway.
1735     case $target in
1736       *-cygwin* | *-mingw* | *-apple-darwin*) ;;
1737       *) if test x"$enable_lto" = x"yes"; then
1738         AC_MSG_ERROR([LTO support is not enabled for this target.])
1739         fi
1740       ;;
1741     esac
1742   fi
1743   # Among non-ELF, only Windows platforms support the lto-plugin so far.
1744   # Build it unless LTO was explicitly disabled.
1745   case $target in
1746     *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1747     *) ;;
1748   esac
1749 ])
1750
1751
1752 # By default, C is the only stage 1 language.
1753 stage1_languages=,c,
1754
1755 # Target libraries that we bootstrap.
1756 bootstrap_target_libs=,target-libgcc,
1757
1758 # Figure out what language subdirectories are present.
1759 # Look if the user specified --enable-languages="..."; if not, use
1760 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1761 # go away some day.
1762 # NB:  embedded tabs in this IF block -- do not untabify
1763 if test -d ${srcdir}/gcc; then
1764   if test x"${enable_languages+set}" != xset; then
1765     if test x"${LANGUAGES+set}" = xset; then
1766       enable_languages="${LANGUAGES}"
1767         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1768     else
1769       enable_languages=all
1770     fi
1771   else
1772     if test x"${enable_languages}" = x ||
1773        test x"${enable_languages}" = xyes;
1774        then
1775       echo configure.in: --enable-languages needs at least one language argument 1>&2
1776       exit 1
1777     fi
1778   fi
1779   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1780
1781   # 'f95' is the old name for the 'fortran' language. We issue a warning
1782   # and make the substitution.
1783   case ,${enable_languages}, in
1784     *,f95,*)
1785       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1786       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1787       ;;
1788   esac
1789
1790   # First scan to see if an enabled language requires some other language.
1791   # We assume that a given config-lang.in will list all the language
1792   # front ends it requires, even if some are required indirectly.
1793   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1794     case ${lang_frag} in
1795       ..) ;;
1796       # The odd quoting in the next line works around
1797       # an apparent bug in bash 1.12 on linux.
1798       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1799       *)
1800         # From the config-lang.in, get $language, $lang_requires, and
1801         # $lang_requires_boot_languages.
1802         language=
1803         lang_requires=
1804         lang_requires_boot_languages=
1805         . ${lang_frag}
1806         for other in ${lang_requires} ${lang_requires_boot_languages}; do
1807           case ,${enable_languages}, in
1808             *,$other,*) ;;
1809             *,all,*) ;;
1810             *,$language,*)
1811               echo " \`$other' language required by \`$language'; enabling" 1>&2
1812               enable_languages="${enable_languages},${other}"
1813               ;;
1814           esac
1815         done
1816         for other in ${lang_requires_boot_languages} ; do
1817           if test "$other" != "c"; then
1818             case ,${enable_stage1_languages}, in
1819               *,$other,*) ;;
1820               *,all,*) ;;
1821               *)
1822                 case ,${enable_languages}, in
1823                   *,$language,*)
1824                     echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1825                     enable_stage1_languages="$enable_stage1_languages,${other}"
1826                     ;;
1827                 esac
1828                 ;;
1829             esac
1830           fi
1831         done
1832         ;;
1833     esac
1834   done
1835
1836   new_enable_languages=,c,
1837
1838   # If LTO is enabled, add the LTO front end.
1839   extra_host_libiberty_configure_flags=
1840   if test "$enable_lto" = "yes" ; then
1841     case ,${enable_languages}, in
1842       *,lto,*) ;;
1843       *) enable_languages="${enable_languages},lto" ;;
1844     esac
1845     if test "${build_lto_plugin}" = "yes" ; then
1846       configdirs="$configdirs lto-plugin"
1847       extra_host_libiberty_configure_flags=--enable-shared
1848     fi
1849   fi
1850   AC_SUBST(extra_host_libiberty_configure_flags)
1851
1852   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1853   potential_languages=,c,
1854
1855   enabled_target_libs=
1856   disabled_target_libs=
1857
1858   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1859     case ${lang_frag} in
1860       ..) ;;
1861       # The odd quoting in the next line works around
1862       # an apparent bug in bash 1.12 on linux.
1863       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1864       *)
1865         # From the config-lang.in, get $language, $target_libs,
1866         # $lang_dirs, $boot_language, and $build_by_default
1867         language=
1868         target_libs=
1869         lang_dirs=
1870         subdir_requires=
1871         boot_language=no
1872         build_by_default=yes
1873         . ${lang_frag}
1874         if test x${language} = x; then
1875           echo "${lang_frag} doesn't set \$language." 1>&2
1876           exit 1
1877         fi
1878
1879         if test "$language" = "c++" \
1880            && test "$ENABLE_BUILD_WITH_CXX" = "yes"; then
1881           boot_language=yes
1882         fi
1883
1884         case ,${enable_languages}, in
1885           *,${language},*)
1886             # Language was explicitly selected; include it.
1887             add_this_lang=yes
1888             ;;
1889           *,all,*)
1890             # 'all' was selected, select it if it is a default language
1891             add_this_lang=${build_by_default}
1892             ;;
1893           *)
1894             add_this_lang=no
1895             ;;
1896         esac
1897
1898         # Disable languages that need other directories if these aren't available.
1899         for i in $subdir_requires; do
1900           test -f "$srcdir/gcc/$i/config-lang.in" && continue
1901           case ,${enable_languages}, in
1902             *,${language},*)
1903               # Specifically requested language; tell them.
1904               AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1905               ;;
1906             *)
1907               # Silently disable.
1908               add_this_lang=unsupported
1909               ;;
1910           esac
1911         done
1912
1913         # Disable Ada if no preexisting GNAT is available.
1914         case ,${enable_languages},:${language}:${have_gnat} in
1915           *,${language},*:ada:no)
1916             # Specifically requested language; tell them.
1917             AC_MSG_ERROR([GNAT is required to build $language])
1918             ;;
1919           *:ada:no)
1920             # Silently disable.
1921             add_this_lang=unsupported
1922             ;;
1923         esac
1924
1925         # Disable a language that is unsupported by the target.
1926         case " $unsupported_languages " in
1927           *" $language "*)
1928             add_this_lang=unsupported
1929             ;;
1930         esac
1931
1932         case $add_this_lang in
1933           unsupported)
1934             # Remove language-dependent dirs.
1935             disabled_target_libs="$disabled_target_libs $target_libs"
1936             noconfigdirs="$noconfigdirs $lang_dirs"
1937             ;;
1938           no)
1939             # Remove language-dependent dirs; still show language as supported.
1940             disabled_target_libs="$disabled_target_libs $target_libs"
1941             noconfigdirs="$noconfigdirs $lang_dirs"
1942             potential_languages="${potential_languages}${language},"
1943             ;;
1944           yes)
1945             new_enable_languages="${new_enable_languages}${language},"
1946             potential_languages="${potential_languages}${language},"
1947             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1948             enabled_target_libs="$enabled_target_libs $target_libs"
1949             case "${boot_language}:,$enable_stage1_languages," in
1950               yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
1951                 # Add to (comma-separated) list of stage 1 languages.
1952                 case ",$stage1_languages," in
1953                   *,$language,* | ,yes, | ,all,) ;;
1954                   *) stage1_languages="${stage1_languages}${language}," ;;
1955                 esac
1956                 # We need to bootstrap any supporting libraries.
1957                 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
1958                 ;;
1959             esac
1960             ;;
1961         esac
1962         ;;
1963     esac
1964   done
1965
1966   # Add target libraries which are only needed for disabled languages
1967   # to noconfigdirs.
1968   if test -n "$disabled_target_libs"; then
1969     for dir in $disabled_target_libs; do
1970       case " $enabled_target_libs " in
1971       *" ${dir} "*) ;;
1972       *) noconfigdirs="$noconfigdirs $dir" ;;
1973       esac
1974     done
1975   fi
1976
1977   AC_ARG_ENABLE(stage1-languages,
1978   [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
1979                   [choose additional languages to build during
1980                   stage1.  Mostly useful for compiler development])],
1981   [case ,${enable_stage1_languages}, in
1982     ,no,|,,)
1983       # Set it to something that will have no effect in the loop below
1984       enable_stage1_languages=c ;;
1985     ,yes,)
1986       enable_stage1_languages=`echo $new_enable_languages | \
1987         sed -e "s/^,//" -e "s/,$//" ` ;;
1988     *,all,*)
1989       enable_stage1_languages=`echo ,$enable_stage1_languages, | \
1990         sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
1991   esac
1992
1993   # Add "good" languages from enable_stage1_languages to stage1_languages,
1994   # while "bad" languages go in missing_languages.  Leave no duplicates.
1995   for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
1996     case $potential_languages in
1997       *,$i,*)
1998         case $stage1_languages in
1999           *,$i,*) ;;
2000           *) stage1_languages="$stage1_languages$i," ;;
2001         esac ;;
2002       *)
2003         case $missing_languages in
2004           *,$i,*) ;;
2005           *) missing_languages="$missing_languages$i," ;;
2006         esac ;;
2007      esac
2008   done])
2009
2010   # Remove leading/trailing commas that were added for simplicity
2011   potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2012   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2013   stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2014   new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2015
2016   if test "x$missing_languages" != x; then
2017     AC_MSG_ERROR([
2018 The following requested languages could not be built: ${missing_languages}
2019 Supported languages are: ${potential_languages}])
2020   fi
2021   if test "x$new_enable_languages" != "x$enable_languages"; then
2022     echo The following languages will be built: ${new_enable_languages}
2023     enable_languages="$new_enable_languages"
2024   fi
2025
2026   AC_SUBST(stage1_languages)
2027   ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2028 fi
2029
2030 # Handle --disable-<component> generically.
2031 for dir in $configdirs $build_configdirs $target_configdirs ; do
2032   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2033   varname=`echo $dirname | sed -e s/+/_/g`
2034   if eval test x\${enable_${varname}} "=" xno ; then
2035     noconfigdirs="$noconfigdirs $dir"
2036   fi
2037 done
2038
2039 # Check for Boehm's garbage collector
2040 AC_ARG_ENABLE(objc-gc,
2041 [AS_HELP_STRING([--enable-objc-gc],
2042                 [enable use of Boehm's garbage collector with the
2043                  GNU Objective-C runtime])],
2044 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
2045   *,objc,*:*:yes:*target-boehm-gc*)
2046     AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
2047     ;;
2048 esac])
2049
2050 # Make sure we only build Boehm's garbage collector if required.
2051 case ,${enable_languages},:${enable_objc_gc} in
2052   *,objc,*:yes)
2053     # Keep target-boehm-gc if requested for Objective-C.
2054     ;;
2055   *)
2056     # Otherwise remove target-boehm-gc depending on target-libjava.
2057     if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
2058       noconfigdirs="$noconfigdirs target-boehm-gc"
2059     fi
2060     ;;
2061 esac
2062
2063 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2064 # $build_configdirs and $target_configdirs.
2065 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2066
2067 notsupp=""
2068 for dir in . $skipdirs $noconfigdirs ; do
2069   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2070   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2071     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2072     if test -r $srcdir/$dirname/configure ; then
2073       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2074         true
2075       else
2076         notsupp="$notsupp $dir"
2077       fi
2078     fi
2079   fi
2080   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2081     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2082     if test -r $srcdir/$dirname/configure ; then
2083       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2084         true
2085       else
2086         notsupp="$notsupp $dir"
2087       fi
2088     fi
2089   fi
2090   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2091     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2092     if test -r $srcdir/$dirname/configure ; then
2093       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2094         true
2095       else
2096         notsupp="$notsupp $dir"
2097       fi
2098     fi
2099   fi
2100 done
2101
2102 # Sometimes the tools are distributed with libiberty but with no other
2103 # libraries.  In that case, we don't want to build target-libiberty.
2104 # Don't let libgcc imply libiberty either.
2105 if test -n "${target_configdirs}" ; then
2106   libgcc=
2107   others=
2108   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
2109     if test "$i" = "libgcc"; then
2110       libgcc=target-libgcc
2111     elif test "$i" != "libiberty" ; then
2112       if test -r $srcdir/$i/configure ; then
2113         others=yes;
2114         break;
2115       fi
2116     fi
2117   done
2118   if test -z "${others}" ; then
2119     target_configdirs=$libgcc
2120   fi
2121 fi
2122
2123 # Quietly strip out all directories which aren't configurable in this tree.
2124 # This relies on all configurable subdirectories being autoconfiscated, which
2125 # is now the case.
2126 build_configdirs_all="$build_configdirs"
2127 build_configdirs=
2128 for i in ${build_configdirs_all} ; do
2129   j=`echo $i | sed -e s/build-//g`
2130   if test -f ${srcdir}/$j/configure ; then
2131     build_configdirs="${build_configdirs} $i"
2132   fi
2133 done
2134
2135 configdirs_all="$configdirs"
2136 configdirs=
2137 for i in ${configdirs_all} ; do
2138   if test -f ${srcdir}/$i/configure ; then
2139     configdirs="${configdirs} $i"
2140   fi
2141 done
2142
2143 target_configdirs_all="$target_configdirs"
2144 target_configdirs=
2145 for i in ${target_configdirs_all} ; do
2146   j=`echo $i | sed -e s/target-//g`
2147   if test -f ${srcdir}/$j/configure ; then
2148     target_configdirs="${target_configdirs} $i"
2149   fi
2150 done
2151
2152 # Produce a warning message for the subdirs we can't configure.
2153 # This isn't especially interesting in the Cygnus tree, but in the individual
2154 # FSF releases, it's important to let people know when their machine isn't
2155 # supported by the one or two programs in a package.
2156
2157 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2158   # If $appdirs is non-empty, at least one of those directories must still
2159   # be configured, or we error out.  (E.g., if the gas release supports a
2160   # specified target in some subdirs but not the gas subdir, we shouldn't
2161   # pretend that all is well.)
2162   if test -n "$appdirs" ; then
2163     for dir in $appdirs ; do
2164       if test -r $dir/Makefile.in ; then
2165         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2166           appdirs=""
2167           break
2168         fi
2169         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2170           appdirs=""
2171           break
2172         fi
2173       fi
2174     done
2175     if test -n "$appdirs" ; then
2176       echo "*** This configuration is not supported by this package." 1>&2
2177       exit 1
2178     fi
2179   fi
2180   # Okay, some application will build, or we don't care to check.  Still
2181   # notify of subdirs not getting built.
2182   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2183   echo "    ${notsupp}" 1>&2
2184   echo "    (Any other directories should still work fine.)" 1>&2
2185 fi
2186
2187 case "$host" in
2188   *msdosdjgpp*)
2189     enable_gdbtk=no ;;
2190 esac
2191
2192 # To find our prefix, in gcc_cv_tool_prefix.
2193 ACX_TOOL_DIRS
2194
2195 copy_dirs=
2196
2197 AC_ARG_WITH([build-sysroot],
2198   [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2199                   [use sysroot as the system root during the build])],
2200   [if test x"$withval" != x ; then
2201      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2202    fi],
2203   [SYSROOT_CFLAGS_FOR_TARGET=])
2204 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2205
2206 AC_ARG_WITH([debug-prefix-map],
2207   [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2208                   [map A to B, C to D ... in debug information])],
2209   [if test x"$withval" != x; then
2210      DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2211      for debug_map in $withval; do
2212        DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2213      done
2214    fi],
2215   [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2216 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2217
2218 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2219 # might be empty or "-g".  We don't require a C++ compiler, so CXXFLAGS
2220 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2221 # We want to ensure that TARGET libraries (which we know are built with
2222 # gcc) are built with "-O2 -g", so include those options when setting
2223 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2224 if test "x$CFLAGS_FOR_TARGET" = x; then
2225   CFLAGS_FOR_TARGET=$CFLAGS
2226   case " $CFLAGS " in
2227     *" -O2 "*) ;;
2228     *) CFLAGS_FOR_TARGET="-O2 $CFLAGS" ;;
2229   esac
2230   case " $CFLAGS " in
2231     *" -g "* | *" -g3 "*) ;;
2232     *) CFLAGS_FOR_TARGET="-g $CFLAGS" ;;
2233   esac
2234 fi
2235 AC_SUBST(CFLAGS_FOR_TARGET)
2236
2237 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2238   CXXFLAGS_FOR_TARGET=$CXXFLAGS
2239   case " $CXXFLAGS " in
2240     *" -O2 "*) ;;
2241     *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS" ;;
2242   esac
2243   case " $CXXFLAGS " in
2244     *" -g "* | *" -g3 "*) ;;
2245     *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS" ;;
2246   esac
2247 fi
2248 AC_SUBST(CXXFLAGS_FOR_TARGET)
2249
2250 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
2251 # the named directory are copied to $(tooldir)/sys-include.
2252 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2253   if test x${is_cross_compiler} = xno ; then
2254     echo 1>&2 '***' --with-headers is only supported when cross compiling
2255     exit 1
2256   fi
2257   if test x"${with_headers}" != xyes ; then
2258     x=${gcc_cv_tool_prefix}
2259     copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2260   fi
2261 fi
2262
2263 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
2264 # the name directories are copied to $(tooldir)/lib.  Multiple directories
2265 # are permitted.
2266 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2267   if test x${is_cross_compiler} = xno ; then
2268     echo 1>&2 '***' --with-libs is only supported when cross compiling
2269     exit 1
2270   fi
2271   if test x"${with_libs}" != xyes ; then
2272     # Copy the libraries in reverse order, so that files in the first named
2273     # library override files in subsequent libraries.
2274     x=${gcc_cv_tool_prefix}
2275     for l in ${with_libs}; do
2276       copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2277     done
2278   fi
2279 fi
2280
2281 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2282 #
2283 # This is done by determining whether or not the appropriate directory
2284 # is available, and by checking whether or not specific configurations
2285 # have requested that this magic not happen.
2286 #
2287 # The command line options always override the explicit settings in
2288 # configure.in, and the settings in configure.in override this magic.
2289 #
2290 # If the default for a toolchain is to use GNU as and ld, and you don't
2291 # want to do that, then you should use the --without-gnu-as and
2292 # --without-gnu-ld options for the configure script.  Similarly, if
2293 # the default is to use the included zlib and you don't want to do that,
2294 # you should use the --with-system-zlib option for the configure script.
2295
2296 if test x${use_gnu_as} = x &&
2297    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2298   with_gnu_as=yes
2299   extra_host_args="$extra_host_args --with-gnu-as"
2300 fi
2301
2302 if test x${use_gnu_ld} = x &&
2303    echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2304   with_gnu_ld=yes
2305   extra_host_args="$extra_host_args --with-gnu-ld"
2306 fi
2307
2308 if test x${use_included_zlib} = x &&
2309    echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2310   :
2311 else
2312   with_system_zlib=yes
2313   extra_host_args="$extra_host_args --with-system-zlib"
2314 fi
2315
2316 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2317 # can detect this case.
2318
2319 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2320   with_newlib=yes
2321   extra_host_args="$extra_host_args --with-newlib"
2322 fi
2323
2324 # Handle ${copy_dirs}
2325 set fnord ${copy_dirs}
2326 shift
2327 while test $# != 0 ; do
2328   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2329     :
2330   else
2331     echo Copying $1 to $2
2332
2333     # Use the install script to create the directory and all required
2334     # parent directories.
2335     if test -d $2 ; then
2336       :
2337     else
2338       echo >config.temp
2339       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2340     fi
2341
2342     # Copy the directory, assuming we have tar.
2343     # FIXME: Should we use B in the second tar?  Not all systems support it.
2344     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2345
2346     # It is the responsibility of the user to correctly adjust all
2347     # symlinks.  If somebody can figure out how to handle them correctly
2348     # here, feel free to add the code.
2349
2350     echo $1 > $2/COPIED
2351   fi
2352   shift; shift
2353 done
2354
2355 # Determine a target-dependent exec_prefix that the installed
2356 # gcc will search in.  Keep this list sorted by triplet, with
2357 # the *-*-osname triplets last.
2358 md_exec_prefix=
2359 case "${target}" in
2360   alpha*-*-*vms*)
2361     md_exec_prefix=/gnu/lib/gcc-lib
2362     ;;
2363   i[[34567]]86-pc-msdosdjgpp*)
2364     md_exec_prefix=/dev/env/DJDIR/bin
2365     ;;
2366   i[[34567]]86-*-sco3.2v5*)
2367     if test $with_gnu_as = yes; then
2368       md_exec_prefix=/usr/gnu/bin
2369     else
2370       md_exec_prefix=/usr/ccs/bin/elf
2371     fi
2372     ;;
2373
2374   mn10300-*-* | \
2375   powerpc-*-chorusos* | \
2376   powerpc*-*-eabi* | \
2377   powerpc*-*-sysv* | \
2378   powerpc*-*-kaos* | \
2379   s390x-ibm-tpf*)
2380     md_exec_prefix=/usr/ccs/bin
2381     ;;
2382   sparc64-*-elf*)
2383     ;;
2384   v850*-*-*)
2385     md_exec_prefix=/usr/ccs/bin
2386     ;;
2387   xtensa*-*-elf*)
2388     ;;
2389
2390   *-*-beos* | \
2391   *-*-elf* | \
2392   *-*-hpux* | \
2393   *-*-netware* | \
2394   *-*-nto-qnx* | \
2395   *-*-rtems* | \
2396   *-*-solaris2* | \
2397   *-*-sysv[[45]]* | \
2398   *-*-vxworks* | \
2399   *-wrs-windiss)
2400     md_exec_prefix=/usr/ccs/bin
2401     ;;
2402 esac
2403
2404 extra_arflags_for_target=
2405 extra_nmflags_for_target=
2406 extra_ranlibflags_for_target=
2407 target_makefile_frag=/dev/null
2408 case "${target}" in
2409   mep*-*-*)
2410     target_makefile_frag="config/mt-mep"
2411     ;;
2412   spu-*-*)
2413     target_makefile_frag="config/mt-spu"
2414     ;;
2415   mips*-sde-elf*)
2416     target_makefile_frag="config/mt-sde"
2417     ;;
2418   mipsisa*-*-elfoabi*)
2419     target_makefile_frag="config/mt-mips-elfoabi"
2420     ;;
2421   mips*-*-*linux* | mips*-*-gnu*)
2422     target_makefile_frag="config/mt-mips-gnu"
2423     ;;
2424   *-*-netware*)
2425     target_makefile_frag="config/mt-netware"
2426     ;;
2427   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2428     target_makefile_frag="config/mt-gnu"
2429     ;;
2430   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2431     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2432     # commands to handle both 32-bit and 64-bit objects.  These flags are
2433     # harmless if we're using GNU nm or ar.
2434     extra_arflags_for_target=" -X32_64"
2435     extra_nmflags_for_target=" -B -X32_64"
2436     ;;
2437   *-*-darwin[[3-9]]*)
2438     # ranlib before Darwin10 requires the -c flag to look at common symbols.
2439     extra_ranlibflags_for_target=" -c"
2440     ;;
2441   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
2442     target_makefile_frag="config/mt-wince"
2443     ;;
2444 esac
2445
2446 alphaieee_frag=/dev/null
2447 case $target in
2448   alpha*-*-*)
2449     # This just makes sure to use the -mieee option to build target libs.
2450     # This should probably be set individually by each library.
2451     alphaieee_frag="config/mt-alphaieee"
2452     ;;
2453 esac
2454
2455 # If --enable-target-optspace always use -Os instead of -O2 to build
2456 # the target libraries, similarly if it is not specified, use -Os
2457 # on selected platforms.
2458 ospace_frag=/dev/null
2459 case "${enable_target_optspace}:${target}" in
2460   yes:*)
2461     ospace_frag="config/mt-ospace"
2462     ;;
2463   :d30v-*)
2464     ospace_frag="config/mt-d30v"
2465     ;;
2466   :m32r-* | :d10v-* | :fr30-*)
2467     ospace_frag="config/mt-ospace"
2468     ;;
2469   no:* | :*)
2470     ;;
2471   *)
2472     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2473     ;;
2474 esac
2475
2476 # Default to using --with-stabs for certain targets.
2477 if test x${with_stabs} = x ; then
2478   case "${target}" in
2479   mips*-*-irix[[56]]*)
2480     ;;
2481   mips*-*-* | alpha*-*-osf*)
2482     with_stabs=yes;
2483     extra_host_args="${extra_host_args} --with-stabs"
2484     ;;
2485   esac
2486 fi
2487
2488 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
2489 # them automatically.
2490 case "${host}" in
2491   hppa*64*-*-hpux11*)
2492     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
2493     ;;
2494 esac
2495
2496 # Some systems (e.g., one of the i386-aix systems the gas testers are
2497 # using) don't handle "\$" correctly, so don't use it here.
2498 tooldir='${exec_prefix}'/${target_noncanonical}
2499 build_tooldir=${tooldir}
2500
2501 # Create a .gdbinit file which runs the one in srcdir
2502 # and tells GDB to look there for source files.
2503
2504 if test -r ${srcdir}/.gdbinit ; then
2505   case ${srcdir} in
2506     .) ;;
2507     *) cat > ./.gdbinit <<EOF
2508 # ${NO_EDIT}
2509 dir ${srcdir}
2510 dir .
2511 source ${srcdir}/.gdbinit
2512 EOF
2513     ;;
2514   esac
2515 fi
2516
2517 # Make sure that the compiler is able to generate an executable.  If it
2518 # can't, we are probably in trouble.  We don't care whether we can run the
2519 # executable--we might be using a cross compiler--we only care whether it
2520 # can be created.  At this point the main configure script has set CC.
2521 we_are_ok=no
2522 echo "int main () { return 0; }" > conftest.c
2523 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2524 if test $? = 0 ; then
2525   if test -s conftest || test -s conftest.exe ; then
2526     we_are_ok=yes
2527   fi
2528 fi
2529 case $we_are_ok in
2530   no)
2531     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2532     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2533     rm -f conftest*
2534     exit 1
2535     ;;
2536 esac
2537 rm -f conftest*
2538
2539 # The Solaris /usr/ucb/cc compiler does not appear to work.
2540 case "${host}" in
2541   sparc-sun-solaris2*)
2542       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
2543       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
2544           could_use=
2545           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
2546           if test -d /opt/cygnus/bin ; then
2547               if test "$could_use" = "" ; then
2548                   could_use="/opt/cygnus/bin"
2549               else
2550                   could_use="$could_use or /opt/cygnus/bin"
2551               fi
2552           fi
2553         if test "$could_use" = "" ; then
2554             echo "Warning: compilation may fail because you're using"
2555             echo "/usr/ucb/cc.  You should change your PATH or CC "
2556             echo "variable and rerun configure."
2557         else
2558             echo "Warning: compilation may fail because you're using"
2559             echo "/usr/ucb/cc, when you should use the C compiler from"
2560             echo "$could_use.  You should change your"
2561             echo "PATH or CC variable and rerun configure."
2562         fi
2563       fi
2564   ;;
2565 esac
2566
2567 # Decide which environment variable is used to find dynamic libraries.
2568 case "${host}" in
2569   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2570   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2571   *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2572   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2573 esac
2574
2575 # On systems where the dynamic library environment variable is PATH,
2576 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2577 # built executables to PATH.
2578 if test "$RPATH_ENVVAR" = PATH; then
2579   GCC_SHLIB_SUBDIR=/shlib
2580 else
2581   GCC_SHLIB_SUBDIR=
2582 fi
2583
2584 # Record target_configdirs and the configure arguments for target and
2585 # build configuration in Makefile.
2586 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2587 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2588
2589 # If we are building libgomp, bootstrap it.
2590 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2591   bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2592 fi
2593
2594 # Determine whether gdb needs tk/tcl or not.
2595 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2596 # and in that case we want gdb to be built without tk.  Ugh!
2597 # In fact I believe gdb is the *only* package directly dependent on tk,
2598 # so we should be able to put the 'maybe's in unconditionally and
2599 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
2600 # 100% sure that that's safe though.
2601
2602 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2603 case "$enable_gdbtk" in
2604   no)
2605     GDB_TK="" ;;
2606   yes)
2607     GDB_TK="${gdb_tk}" ;;
2608   *)
2609     # Only add the dependency on gdbtk when GDBtk is part of the gdb
2610     # distro.  Eventually someone will fix this and move Insight, nee
2611     # gdbtk to a separate directory.
2612     if test -d ${srcdir}/gdb/gdbtk ; then
2613       GDB_TK="${gdb_tk}"
2614     else
2615       GDB_TK=""
2616     fi
2617     ;;
2618 esac
2619 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2620 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2621
2622 # Strip out unwanted targets.
2623
2624 # While at that, we remove Makefiles if we were started for recursive
2625 # configuration, so that the top-level Makefile reconfigures them,
2626 # like we used to do when configure itself was recursive.
2627
2628 # Loop over modules.  We used to use the "$extrasub" feature from Autoconf
2629 # but now we're fixing up the Makefile ourselves with the additional
2630 # commands passed to AC_CONFIG_FILES.  Use separate variables
2631 # extrasub-{build,host,target} not because there is any reason to split
2632 # the substitutions up that way, but only to remain below the limit of
2633 # 99 commands in a script, for HP-UX sed.
2634 # Do not nest @if/@endif pairs, because configure will not warn you at all.
2635
2636 AC_ARG_ENABLE([bootstrap],
2637 [AS_HELP_STRING([--enable-bootstrap],
2638                 [enable bootstrapping @<:@yes if native build@:>@])],,
2639 enable_bootstrap=default)
2640
2641 # Issue errors and warnings for invalid/strange bootstrap combinations.
2642 case "$configdirs" in
2643   *gcc*) have_compiler=yes ;;
2644   *) have_compiler=no ;;
2645 esac
2646
2647 case "$have_compiler:$host:$target:$enable_bootstrap" in
2648   *:*:*:no) ;;
2649
2650   # Default behavior.  Enable bootstrap if we have a compiler
2651   # and we are in a native configuration.
2652   yes:$build:$build:default)
2653     enable_bootstrap=yes ;;
2654
2655   *:*:*:default)
2656     enable_bootstrap=no ;;
2657
2658   # We have a compiler and we are in a native configuration, bootstrap is ok
2659   yes:$build:$build:yes)
2660     ;;
2661
2662   # Other configurations, but we have a compiler.  Assume the user knows
2663   # what he's doing.
2664   yes:*:*:yes)
2665     AC_MSG_WARN([trying to bootstrap a cross compiler])
2666     ;;
2667
2668   # No compiler: if they passed --enable-bootstrap explicitly, fail
2669   no:*:*:yes)
2670     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
2671
2672   # Fail if wrong command line
2673   *)
2674     AC_MSG_ERROR([invalid option for --enable-bootstrap])
2675     ;;
2676 esac
2677
2678 case ",$enable_languages,:$ENABLE_BUILD_WITH_CXX:$enable_bootstrap" in
2679   *,c++,*:yes:yes) ;;
2680   *:yes:yes)
2681     AC_MSG_ERROR([bootstrapping with --enable-build-with-cxx requires c++ in --enable-languages])
2682     ;;
2683 esac
2684
2685 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2686   yes:yes:*\ gold\ *:*,c++,*) ;;
2687   yes:yes:*\ gold\ *:*)
2688     AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2689     ;;
2690 esac
2691
2692 # Adjust the toplevel makefile according to whether bootstrap was selected.
2693 case $enable_bootstrap in
2694   yes)
2695     bootstrap_suffix=bootstrap
2696     BUILD_CONFIG=bootstrap-debug
2697     ;;
2698   no)
2699     bootstrap_suffix=no-bootstrap
2700     BUILD_CONFIG=
2701     ;;
2702 esac
2703
2704 AC_MSG_CHECKING(for default BUILD_CONFIG)
2705
2706 AC_ARG_WITH([build-config],
2707   [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2708                   [use config/NAME.mk build configuration])],
2709   [case $with_build_config in
2710    yes) with_build_config= ;;
2711    no) with_build_config= BUILD_CONFIG= ;;
2712    esac])
2713
2714 if test "x${with_build_config}" != x; then
2715   BUILD_CONFIG=$with_build_config
2716 else
2717   case $BUILD_CONFIG in
2718   bootstrap-debug)
2719     if echo "int f (void) { return 0; }" > conftest.c &&
2720        ${CC} -c conftest.c &&
2721        mv conftest.o conftest.o.g0 &&
2722        ${CC} -c -g conftest.c &&
2723        mv conftest.o conftest.o.g &&
2724        ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2725       :
2726     else
2727       BUILD_CONFIG=
2728     fi
2729     rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2730     ;;
2731   esac
2732 fi
2733 AC_MSG_RESULT($BUILD_CONFIG)
2734 AC_SUBST(BUILD_CONFIG)
2735
2736 extrasub_build=
2737 for module in ${build_configdirs} ; do
2738   if test -z "${no_recursion}" \
2739      && test -f ${build_subdir}/${module}/Makefile; then
2740     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2741     rm -f ${build_subdir}/${module}/Makefile
2742   fi
2743   extrasub_build="$extrasub_build
2744 /^@if build-$module\$/d
2745 /^@endif build-$module\$/d
2746 /^@if build-$module-$bootstrap_suffix\$/d
2747 /^@endif build-$module-$bootstrap_suffix\$/d"
2748 done
2749 extrasub_host=
2750 for module in ${configdirs} ; do
2751   if test -z "${no_recursion}"; then
2752     for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2753       if test -f ${file}; then
2754         echo 1>&2 "*** removing ${file} to force reconfigure"
2755         rm -f ${file}
2756       fi
2757     done
2758   fi
2759   extrasub_host="$extrasub_host
2760 /^@if $module\$/d
2761 /^@endif $module\$/d
2762 /^@if $module-$bootstrap_suffix\$/d
2763 /^@endif $module-$bootstrap_suffix\$/d"
2764 done
2765 extrasub_target=
2766 for module in ${target_configdirs} ; do
2767   if test -z "${no_recursion}" \
2768      && test -f ${target_subdir}/${module}/Makefile; then
2769     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2770     rm -f ${target_subdir}/${module}/Makefile
2771   fi
2772
2773   # We only bootstrap target libraries listed in bootstrap_target_libs.
2774   case $bootstrap_target_libs in
2775     *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2776     *) target_bootstrap_suffix=no-bootstrap ;;
2777   esac
2778
2779   extrasub_target="$extrasub_target
2780 /^@if target-$module\$/d
2781 /^@endif target-$module\$/d
2782 /^@if target-$module-$target_bootstrap_suffix\$/d
2783 /^@endif target-$module-$target_bootstrap_suffix\$/d"
2784 done
2785
2786 # Do the final fixup along with target modules.
2787 extrasub_target="$extrasub_target
2788 /^@if /,/^@endif /d"
2789
2790 # Create the serialization dependencies.  This uses a temporary file.
2791
2792 AC_ARG_ENABLE([serial-configure],
2793 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2794                 [force sequential configuration of
2795                  sub-packages for the host, target or build
2796                  machine, or all sub-packages])])
2797
2798 case ${enable_serial_configure} in
2799   yes)
2800     enable_serial_build_configure=yes
2801     enable_serial_host_configure=yes
2802     enable_serial_target_configure=yes
2803     ;;
2804 esac
2805
2806 # These force 'configure's to be done one at a time, to avoid problems
2807 # with contention over a shared config.cache.
2808 rm -f serdep.tmp
2809 echo '# serdep.tmp' > serdep.tmp
2810 olditem=
2811 test "x${enable_serial_build_configure}" = xyes &&
2812 for item in ${build_configdirs} ; do
2813   case ${olditem} in
2814     "") ;;
2815     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2816   esac
2817   olditem=${item}
2818 done
2819 olditem=
2820 test "x${enable_serial_host_configure}" = xyes &&
2821 for item in ${configdirs} ; do
2822   case ${olditem} in
2823     "") ;;
2824     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2825   esac
2826   olditem=${item}
2827 done
2828 olditem=
2829 test "x${enable_serial_target_configure}" = xyes &&
2830 for item in ${target_configdirs} ; do
2831   case ${olditem} in
2832     "") ;;
2833     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2834   esac
2835   olditem=${item}
2836 done
2837 serialization_dependencies=serdep.tmp
2838 AC_SUBST_FILE(serialization_dependencies)
2839
2840 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
2841 # target, nonopt, and variable assignments.  These are the ones we
2842 # might not want to pass down to subconfigures.  The exception being
2843 # --cache-file=/dev/null, which is used to turn off the use of cache
2844 # files altogether, and which should be passed on to subconfigures.
2845 # Also strip program-prefix, program-suffix, and program-transform-name,
2846 # so that we can pass down a consistent program-transform-name.
2847 baseargs=
2848 tbaseargs=
2849 keep_next=no
2850 skip_next=no
2851 eval "set -- $ac_configure_args"
2852 for ac_arg
2853 do
2854   if test X"$skip_next" = X"yes"; then
2855     skip_next=no
2856     continue
2857   fi
2858   if test X"$keep_next" = X"yes"; then
2859     case $ac_arg in
2860       *\'*)
2861         ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2862     esac
2863     baseargs="$baseargs '$ac_arg'"
2864     tbaseargs="$tbaseargs '$ac_arg'"
2865     keep_next=no
2866     continue
2867   fi
2868
2869   # Handle separated arguments.  Based on the logic generated by
2870   # autoconf 2.59.
2871   case $ac_arg in
2872     *=* | --config-cache | -C | -disable-* | --disable-* \
2873       | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2874       | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2875       | -with-* | --with-* | -without-* | --without-* | --x)
2876       separate_arg=no
2877       ;;
2878     -*)
2879       separate_arg=yes
2880       ;;
2881     *)
2882       separate_arg=no
2883       ;;
2884   esac
2885
2886   skip_targ=no
2887   case $ac_arg in
2888 changequote(,)
2889   --with-* | --without-*)
2890     libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2891
2892     case $libopt in
2893     *[-_]include)
2894       lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2895       ;;
2896     *[-_]lib)
2897       lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2898       ;;
2899     *)
2900       lib=$libopt
2901       ;;
2902     esac
2903 changequote([,])
2904
2905     case $lib in
2906     mpc | mpfr | gmp | ppl | cloog)
2907       # If we're processing --with-$lib, --with-$lib-include or
2908       # --with-$lib-lib, for one of the libs above, and target is
2909       # different from host, don't pass the current argument to any
2910       # target library's configure.
2911       if test x$is_cross_compiler = xyes; then
2912         skip_targ=yes
2913       fi
2914       ;;
2915     esac
2916     ;;
2917   esac
2918
2919   case "$ac_arg" in
2920     --cache-file=/dev/null | \
2921     -cache-file=/dev/null )
2922       # Handled here to avoid the test to skip args below.
2923       baseargs="$baseargs '$ac_arg'"
2924       tbaseargs="$tbaseargs '$ac_arg'"
2925       # Assert: $separate_arg should always be no.
2926       keep_next=$separate_arg
2927       ;;
2928     --no*)
2929       continue
2930       ;;
2931     --c* | \
2932     --sr* | \
2933     --ho* | \
2934     --bu* | \
2935     --t* | \
2936     --program-* | \
2937     -cache_file* | \
2938     -srcdir* | \
2939     -host* | \
2940     -build* | \
2941     -target* | \
2942     -program-prefix* | \
2943     -program-suffix* | \
2944     -program-transform-name* )
2945       skip_next=$separate_arg
2946       continue
2947       ;;
2948     -*)
2949       # An option.  Add it.
2950       case $ac_arg in
2951         *\'*)
2952           ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2953       esac
2954       baseargs="$baseargs '$ac_arg'"
2955       if test X"$skip_targ" = Xno; then
2956         tbaseargs="$tbaseargs '$ac_arg'"
2957       fi
2958       keep_next=$separate_arg
2959       ;;
2960     *)
2961       # Either a variable assignment, or a nonopt (triplet).  Don't
2962       # pass it down; let the Makefile handle this.
2963       continue
2964       ;;
2965   esac
2966 done
2967 # Remove the initial space we just introduced and, as these will be
2968 # expanded by make, quote '$'.
2969 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2970
2971 # Add in --program-transform-name, after --program-prefix and
2972 # --program-suffix have been applied to it.  Autoconf has already
2973 # doubled dollar signs and backslashes in program_transform_name; we want
2974 # the backslashes un-doubled, and then the entire thing wrapped in single
2975 # quotes, because this will be expanded first by make and then by the shell.
2976 # Also, because we want to override the logic in subdir configure scripts to
2977 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2978 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2979 ${program_transform_name}
2980 EOF_SED
2981 gcc_transform_name=`cat conftestsed.out`
2982 rm -f conftestsed.out
2983 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2984 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
2985 if test "$silent" = yes; then
2986   baseargs="$baseargs --silent"
2987   tbaseargs="$tbaseargs --silent"
2988 fi
2989 baseargs="$baseargs --disable-option-checking"
2990 tbaseargs="$tbaseargs --disable-option-checking"
2991
2992 # Record and document user additions to sub configure arguments.
2993 AC_ARG_VAR([build_configargs],
2994            [additional configure arguments for build directories])
2995 AC_ARG_VAR([host_configargs],
2996            [additional configure arguments for host directories])
2997 AC_ARG_VAR([target_configargs],
2998            [additional configure arguments for target directories])
2999
3000 # For the build-side libraries, we just need to pretend we're native,
3001 # and not use the same cache file.  Multilibs are neither needed nor
3002 # desired.
3003 build_configargs="$build_configargs --cache-file=../config.cache ${baseargs}"
3004
3005 # For host modules, accept cache file option, or specification as blank.
3006 case "${cache_file}" in
3007 "") # empty
3008   cache_file_option="" ;;
3009 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3010   cache_file_option="--cache-file=${cache_file}" ;;
3011 *) # relative path
3012   cache_file_option="--cache-file=../${cache_file}" ;;
3013 esac
3014
3015 # Host dirs don't like to share a cache file either, horribly enough.
3016 # This seems to be due to autoconf 2.5x stupidity.
3017 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3018
3019 target_configargs="$target_configargs ${tbaseargs}"
3020
3021 # Passing a --with-cross-host argument lets the target libraries know
3022 # whether they are being built with a cross-compiler or being built
3023 # native.  However, it would be better to use other mechanisms to make the
3024 # sorts of decisions they want to make on this basis.  Please consider
3025 # this option to be deprecated.  FIXME.
3026 if test x${is_cross_compiler} = xyes ; then
3027   target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3028 fi
3029
3030 # Default to --enable-multilib.
3031 if test x${enable_multilib} = x ; then
3032   target_configargs="--enable-multilib ${target_configargs}"
3033 fi
3034
3035 # Pass --with-newlib if appropriate.  Note that target_configdirs has
3036 # changed from the earlier setting of with_newlib.
3037 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3038   target_configargs="--with-newlib ${target_configargs}"
3039 fi
3040
3041 # Different target subdirs use different values of certain variables
3042 # (notably CXX).  Worse, multilibs use *lots* of different values.
3043 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3044 # it doesn't automatically accept command-line overrides of them.
3045 # This means it's not safe for target subdirs to share a cache file,
3046 # which is disgusting, but there you have it.  Hopefully this can be
3047 # fixed in future.  It's still worthwhile to use a cache file for each
3048 # directory.  I think.
3049
3050 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3051 # We need to pass --target, as newer autoconf's requires consistency
3052 # for target_alias and gcc doesn't manage it consistently.
3053 target_configargs="--cache-file=./config.cache ${target_configargs}"
3054
3055 FLAGS_FOR_TARGET=
3056 case " $target_configdirs " in
3057  *" newlib "*)
3058   case " $target_configargs " in
3059   *" --with-newlib "*)
3060    case "$target" in
3061     *-cygwin*)
3062       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/include -isystem $$s/winsup/cygwin/include -isystem $$s/winsup/w32api/include'
3063       ;;
3064    esac
3065
3066    # If we're not building GCC, don't discard standard headers.
3067    if test -d ${srcdir}/gcc; then
3068      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3069
3070      if test "${build}" != "${host}"; then
3071        # On Canadian crosses, CC_FOR_TARGET will have already been set
3072        # by `configure', so we won't have an opportunity to add -Bgcc/
3073        # to it.  This is right: we don't want to search that directory
3074        # for binaries, but we want the header files in there, so add
3075        # them explicitly.
3076        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3077
3078        # Someone might think of using the pre-installed headers on
3079        # Canadian crosses, in case the installed compiler is not fully
3080        # compatible with the compiler being built.  In this case, it
3081        # would be better to flag an error than risking having
3082        # incompatible object files being constructed.  We can't
3083        # guarantee that an error will be flagged, but let's hope the
3084        # compiler will do it, when presented with incompatible header
3085        # files.
3086      fi
3087    fi
3088
3089    case "${target}-${is_cross_compiler}" in
3090    i[[3456789]]86-*-linux*-no)
3091       # Here host == target, so we don't need to build gcc,
3092       # so we don't want to discard standard headers.
3093       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3094       ;;
3095    *)
3096       # If we're building newlib, use its generic headers last, but search
3097       # for any libc-related directories first (so make it the last -B
3098       # switch).
3099       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3100
3101       # If we're building libgloss, find the startup file, simulator library
3102       # and linker script.
3103       case " $target_configdirs " in
3104         *" libgloss "*)
3105         # Look for startup file, simulator library and maybe linker script.
3106         FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3107         # Look for libnosys.a in case the target needs it.
3108         FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3109         # Most targets have the linker script in the source directory.
3110         FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3111         ;;
3112       esac
3113       ;;
3114    esac
3115    ;;
3116   esac
3117   ;;
3118 esac
3119
3120 case "$target" in
3121   x86_64-*mingw* | *-w64-mingw*)
3122   # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3123   # however, use a symlink named 'mingw' in ${prefix} .
3124     FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3125     ;;
3126   *-mingw*)
3127   # MinGW can't be handled as Cygwin above since it does not use newlib.
3128     FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3129     ;;
3130 esac
3131
3132 # Allow the user to override the flags for
3133 # our build compiler if desired.
3134 if test x"${build}" = x"${host}" ; then
3135   CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3136   CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3137   LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3138 fi
3139
3140 # On Canadian crosses, we'll be searching the right directories for
3141 # the previously-installed cross compiler, so don't bother to add
3142 # flags for directories within the install tree of the compiler
3143 # being built; programs in there won't even run.
3144 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3145   # Search for pre-installed headers if nothing else fits.
3146   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3147 fi
3148
3149 if test "x${use_gnu_ld}" = x &&
3150    echo " ${configdirs} " | grep " ld " > /dev/null ; then
3151   # Arrange for us to find uninstalled linker scripts.
3152   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3153 fi
3154
3155 # Search for other target-specific linker scripts and such.
3156 case "${target}" in
3157   mep*)
3158     FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3159     ;;
3160 esac
3161
3162 # Makefile fragments.
3163 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3164 do
3165   eval fragval=\$$frag
3166   if test $fragval != /dev/null; then
3167     eval $frag=${srcdir}/$fragval
3168   fi
3169 done
3170 AC_SUBST_FILE(host_makefile_frag)
3171 AC_SUBST_FILE(target_makefile_frag)
3172 AC_SUBST_FILE(alphaieee_frag)
3173 AC_SUBST_FILE(ospace_frag)
3174
3175 # Miscellanea: directories, flags, etc.
3176 AC_SUBST(RPATH_ENVVAR)
3177 AC_SUBST(GCC_SHLIB_SUBDIR)
3178 AC_SUBST(tooldir)
3179 AC_SUBST(build_tooldir)
3180 AC_SUBST(CONFIGURE_GDB_TK)
3181 AC_SUBST(GDB_TK)
3182 AC_SUBST(INSTALL_GDB_TK)
3183
3184 # Build module lists & subconfigure args.
3185 AC_SUBST(build_configargs)
3186 AC_SUBST(build_configdirs)
3187
3188 # Host module lists & subconfigure args.
3189 AC_SUBST(host_configargs)
3190 AC_SUBST(configdirs)
3191 AC_SUBST(target_configdirs)
3192
3193 # Target module lists & subconfigure args.
3194 AC_SUBST(target_configargs)
3195
3196
3197 # Build tools.
3198 AC_SUBST(AR_FOR_BUILD)
3199 AC_SUBST(AS_FOR_BUILD)
3200 AC_SUBST(CC_FOR_BUILD)
3201 AC_SUBST(CFLAGS_FOR_BUILD)
3202 AC_SUBST(CXXFLAGS_FOR_BUILD)
3203 AC_SUBST(CXX_FOR_BUILD)
3204 AC_SUBST(DLLTOOL_FOR_BUILD)
3205 AC_SUBST(GCJ_FOR_BUILD)
3206 AC_SUBST(GFORTRAN_FOR_BUILD)
3207 AC_SUBST(GOC_FOR_BUILD)
3208 AC_SUBST(LDFLAGS_FOR_BUILD)
3209 AC_SUBST(LD_FOR_BUILD)
3210 AC_SUBST(NM_FOR_BUILD)
3211 AC_SUBST(RANLIB_FOR_BUILD)
3212 AC_SUBST(WINDMC_FOR_BUILD)
3213 AC_SUBST(WINDRES_FOR_BUILD)
3214 AC_SUBST(config_shell)
3215
3216 # Generate default definitions for YACC, M4, LEX and other programs that run
3217 # on the build machine.  These are used if the Makefile can't locate these
3218 # programs in objdir.
3219 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3220
3221 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3222 case " $build_configdirs " in
3223   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3224   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
3225 esac
3226
3227 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3228 case " $build_configdirs " in
3229   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3230 esac
3231
3232 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3233 case " $build_configdirs " in
3234   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3235 esac
3236
3237 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3238 case " $build_configdirs " in
3239   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3240   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3241 esac
3242
3243 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3244 case " $build_configdirs " in
3245   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3246 esac
3247
3248 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3249 case " $build_configdirs " in
3250   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3251   *)
3252 changequote(,)
3253     # For an installed makeinfo, we require it to be from texinfo 4.7 or
3254     # higher, else we use the "missing" dummy.
3255     if ${MAKEINFO} --version \
3256        | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3257       :
3258     else
3259       MAKEINFO="$MISSING makeinfo"
3260     fi
3261     ;;
3262 changequote([,])
3263 esac
3264
3265 # FIXME: expect and dejagnu may become build tools?
3266
3267 AC_CHECK_PROGS(EXPECT, expect, expect)
3268 case " $configdirs " in
3269   *" expect "*)
3270     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3271     ;;
3272 esac
3273
3274 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3275 case " $configdirs " in
3276   *" dejagnu "*)
3277     test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3278     ;;
3279 esac
3280
3281
3282 # Host tools.
3283 NCN_STRICT_CHECK_TOOLS(AR, ar)
3284 NCN_STRICT_CHECK_TOOLS(AS, as)
3285 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3286 NCN_STRICT_CHECK_TOOLS(LD, ld)
3287 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3288 NCN_STRICT_CHECK_TOOLS(NM, nm)
3289 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3290 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3291 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3292 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3293 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3294 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3295 AC_SUBST(CC)
3296 AC_SUBST(CXX)
3297 AC_SUBST(CFLAGS)
3298 AC_SUBST(CXXFLAGS)
3299
3300 # Target tools.
3301 AC_ARG_WITH([build-time-tools],
3302   [AS_HELP_STRING([--with-build-time-tools=PATH],
3303                   [use given path to find target tools during the build])],
3304   [case x"$withval" in
3305      x/*) ;;
3306      *)
3307        with_build_time_tools=
3308        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3309        ;;
3310    esac],
3311   [with_build_time_tools=])
3312
3313 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3314 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3315 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3316 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
3317 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3318 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3319
3320 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3321 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3322 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3323 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3324 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3325 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3326 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3327 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3328 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3329 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3330 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3331
3332 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3333
3334 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3335 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3336 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3337 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3338 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3339                 [gcc/g++ -B$$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],
3340                 c++)
3341 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3342                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
3343                 c++)
3344 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3345 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3346 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
3347                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
3348 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3349                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3350 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3351                 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3352 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3353 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3354 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3355 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3356 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3357 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3358 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3359 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3360
3361 AC_SUBST(FLAGS_FOR_TARGET)
3362 AC_SUBST(RAW_CXX_FOR_TARGET)
3363
3364 # Certain tools may need extra flags.
3365 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3366 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3367 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3368
3369 # When building target libraries, except in a Canadian cross, we use
3370 # the same toolchain as the compiler we just built.
3371 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3372 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3373 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3374 if test $host = $build; then
3375   case " $configdirs " in
3376     *" gcc "*)
3377       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3378       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3379       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3380       ;;
3381   esac
3382 fi
3383
3384 AC_SUBST(COMPILER_AS_FOR_TARGET)
3385 AC_SUBST(COMPILER_LD_FOR_TARGET)
3386 AC_SUBST(COMPILER_NM_FOR_TARGET)
3387
3388 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3389 AC_ARG_ENABLE(maintainer-mode,
3390 [AS_HELP_STRING([--enable-maintainer-mode],
3391                 [enable make rules and dependencies not useful
3392                  (and sometimes confusing) to the casual installer])],
3393       USE_MAINTAINER_MODE=$enableval,
3394       USE_MAINTAINER_MODE=no)
3395 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3396 AC_SUBST(MAINTAINER_MODE_TRUE)
3397 AC_SUBST(MAINTAINER_MODE_FALSE)
3398 if test "$USE_MAINTAINER_MODE" = yes; then
3399   MAINTAINER_MODE_TRUE=
3400   MAINTAINER_MODE_FALSE='#'
3401 else
3402   MAINTAINER_MODE_TRUE='#'
3403   MAINTAINER_MODE_FALSE=
3404 fi
3405 MAINT=$MAINTAINER_MODE_TRUE
3406 AC_SUBST(MAINT)dnl
3407
3408 # ---------------------
3409 # GCC bootstrap support
3410 # ---------------------
3411
3412 # Stage specific cflags for build.
3413 stage1_cflags="-g"
3414 case $build in
3415   vax-*-*)
3416     case ${GCC} in
3417       yes) stage1_cflags="-g -Wa,-J" ;;
3418       *) stage1_cflags="-g -J" ;;
3419     esac ;;
3420 esac
3421
3422 # This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
3423 if test "$GCC" = yes -a "$ENABLE_BUILD_WITH_CXX" != yes; then
3424   saved_CFLAGS="$CFLAGS"
3425
3426   # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
3427   CFLAGS="$CFLAGS -fkeep-inline-functions"
3428   AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
3429   AC_TRY_COMPILE([
3430 #if (__GNUC__ < 3) \
3431     || (__GNUC__ == 3 && (__GNUC_MINOR__ < 3 \
3432                           || (__GNUC_MINOR__ == 3 && __GNUC_PATCHLEVEL__ < 1)))
3433 #error http://gcc.gnu.org/PR29382
3434 #endif
3435     ],,
3436     [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
3437     [AC_MSG_RESULT([no])])
3438
3439   CFLAGS="$saved_CFLAGS"
3440 fi
3441
3442 AC_SUBST(stage1_cflags)
3443
3444 # Enable --enable-checking in stage1 of the compiler.
3445 AC_ARG_ENABLE(stage1-checking,
3446 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3447                 [choose additional checking for stage1 of the compiler])],
3448 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3449 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3450   stage1_checking=--enable-checking=yes,types
3451 else
3452   stage1_checking=--enable-checking=$enable_checking,types
3453 fi])
3454 AC_SUBST(stage1_checking)
3455
3456 # Enable -Werror in bootstrap stage2 and later.
3457 AC_ARG_ENABLE(werror,
3458 [AS_HELP_STRING([--enable-werror],
3459                 [enable -Werror in bootstrap stage2 and later])], [],
3460 [if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3461   enable_werror=yes
3462 else
3463   enable_werror=no
3464 fi])
3465 case ${enable_werror} in
3466   yes) stage2_werror_flag="--enable-werror-always" ;;
3467   *) stage2_werror_flag="" ;;
3468 esac
3469 AC_SUBST(stage2_werror_flag)
3470
3471 # Specify what files to not compare during bootstrap.
3472
3473 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3474 case "$target" in
3475   hppa*64*-*-hpux*) ;;
3476   hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
3477 esac
3478 case " $configdirs " in
3479 *" ppl "*) compare_exclusions="$compare_exclusions | ppl/src/ppl-config.o" ;;
3480 esac
3481 AC_SUBST(compare_exclusions)
3482
3483 AC_CONFIG_FILES([Makefile],
3484   [sed "$extrasub_build" Makefile |
3485    sed "$extrasub_host" |
3486    sed "$extrasub_target" > mf$$
3487    mv -f mf$$ Makefile],
3488   [extrasub_build="$extrasub_build"
3489    extrasub_host="$extrasub_host"
3490    extrasub_target="$extrasub_target"])
3491 AC_OUTPUT