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   powerpc-*-beos*)
 455     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 456     ;;
 457 esac
 458
 459
 460 AC_ARG_ENABLE(libquadmath,
 461 AS_HELP_STRING([--disable-libquadmath],
 462   [do not build libquadmath directory]),
 463 ENABLE_LIBQUADMATH=$enableval,
 464 ENABLE_LIBQUADMATH=yes)
 465 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
 466   noconfigdirs="$noconfigdirs target-libquadmath"
 467 fi
 468
 469
 470 AC_ARG_ENABLE(libquadmath-support,
 471 AS_HELP_STRING([--disable-libquadmath-support],
 472   [disable libquadmath support for Fortran]),
 473 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
 474 ENABLE_LIBQUADMATH_SUPPORT=yes)
 475 enable_libquadmath_support=
 476 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
 477   enable_libquadmath_support=no
 478 fi
 479
 480
 481 AC_ARG_ENABLE(libada,
 482 [AS_HELP_STRING([--enable-libada], [build libada directory])],
 483 ENABLE_LIBADA=$enableval,
 484 ENABLE_LIBADA=yes)
 485 if test "${ENABLE_LIBADA}" != "yes" ; then
 486   noconfigdirs="$noconfigdirs gnattools"
 487 fi
 488
 489 AC_ARG_ENABLE(libssp,
 490 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
 491 ENABLE_LIBSSP=$enableval,
 492 ENABLE_LIBSSP=yes)
 493
 494 # Save it here so that, even in case of --enable-libgcj, if the Java
 495 # front-end isn't enabled, we still get libgcj disabled.
 496 libgcj_saved=$libgcj
 497 case $enable_libgcj in
 498 yes)
 499   # If we reset it here, it won't get added to noconfigdirs in the
 500   # target-specific build rules, so it will be forcibly enabled
 501   # (unless the Java language itself isn't enabled).
 502   libgcj=
 503   ;;
 504 no)
 505   # Make sure we get it printed in the list of not supported target libs.
 506   # Don't disable libffi, though, other languages use it.
 507   noconfigdirs="$noconfigdirs `echo ${libgcj} | sed -e 's/target-libffi//'`"
 508   # Clear libgcj_saved so that even if java is enabled libffi won't be
 509   # built.
 510   libgcj_saved=
 511   ;;
 512 esac
 513
 514
 515 # Disable libmudflap on some systems.
 516 if test x$enable_libmudflap = x ; then
 517     case "${target}" in
 518     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | bfin*-*-uclinux* | *-*-kopensolaris*-gnu)
 519         # Enable libmudflap by default in GNU and friends.
 520         ;;
 521     *-*-freebsd*)
 522         # Enable libmudflap by default in FreeBSD.
 523         ;;
 524     *)
 525         # Disable it by default everywhere else.
 526         noconfigdirs="$noconfigdirs target-libmudflap"
 527         ;;
 528     esac
 529 fi
 530
 531 # Disable libgomp on non POSIX hosted systems.
 532 if test x$enable_libgomp = x ; then
 533     # Enable libgomp by default on hosted POSIX systems.
 534     case "${target}" in
 535     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
 536         ;;
 537     *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
 538         ;;
 539     *-*-solaris2* | *-*-sysv4* | *-*-irix6* | *-*-osf* | *-*-hpux11*)
 540         ;;
 541     *-*-darwin* | *-*-aix*)
 542         ;;
 543     *)
 544         noconfigdirs="$noconfigdirs target-libgomp"
 545         ;;
 546     esac
 547 fi
 548
 549 # Default libgloss CPU subdirectory.
 550 libgloss_dir="$target_cpu"
 551
 552 case "${target}" in
 553   *-*-chorusos)
 554     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 555     ;;
 556   powerpc-*-darwin*)
 557     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 558     noconfigdirs="$noconfigdirs sim target-rda"
 559     ;;
 560   i[[3456789]]86-*-darwin*)
 561     noconfigdirs="$noconfigdirs ld gprof"
 562     noconfigdirs="$noconfigdirs sim target-rda"
 563     ;;
 564   x86_64-*-darwin[[912]]*)
 565     noconfigdirs="$noconfigdirs ld gas gprof"
 566     noconfigdirs="$noconfigdirs sim target-rda"
 567     ;;
 568   *-*-darwin*)
 569     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 570     noconfigdirs="$noconfigdirs sim target-rda"
 571     noconfigdirs="$noconfigdirs ${libgcj}"
 572     ;;
 573   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 574     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 575     ;;
 576   *-*-freebsd*)
 577     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 578     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 579         && test -f /usr/local/include/gmp.h; then
 580       with_gmp=/usr/local
 581     fi
 582
 583     # Skip some stuff that's unsupported on some FreeBSD configurations.
 584     case "${target}" in
 585       i*86-*-*) ;;
 586       alpha*-*-*) ;;
 587       x86_64-*-*) ;;
 588       *)
 589         noconfigdirs="$noconfigdirs ${libgcj}"
 590         ;;
 591     esac
 592     ;;
 593   *-*-kaos*)
 594     # Remove unsupported stuff on all kaOS configurations.
 595     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 596     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 597     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 598     noconfigdirs="$noconfigdirs target-libgloss"
 599     ;;
 600   *-*-netbsd*)
 601     # Skip some stuff on all NetBSD configurations.
 602     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 603
 604     # Skip some stuff that's unsupported on some NetBSD configurations.
 605     case "${target}" in
 606       i*86-*-netbsdelf*) ;;
 607       arm*-*-netbsdelf*) ;;
 608       *)
 609         noconfigdirs="$noconfigdirs ${libgcj}"
 610         ;;
 611     esac
 612     ;;
 613   *-*-netware*)
 614     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 615     ;;
 616   *-*-rtems*)
 617     skipdirs="${skipdirs} target-libiberty"
 618     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 619     ;;
 620     # The tpf target doesn't support gdb yet.
 621   *-*-tpf*)
 622     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 623     ;;
 624   *-*-uclinux*)
 625     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 626     ;;
 627   *-*-vxworks*)
 628     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
 629     ;;
 630   alpha*-dec-osf*)
 631     # ld works, but does not support shared libraries.
 632     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 633     # gas doesn't generate exception information.
 634     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 635     ;;
 636   alpha*-*-*vms*)
 637     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 638     ;;
 639   alpha*-*-linux*)
 640     # newlib is not 64 bit ready
 641     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 642     ;;
 643   alpha*-*-*)
 644     # newlib is not 64 bit ready
 645     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 646     ;;
 647   am33_2.0-*-linux*)
 648     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 649     ;;
 650   sh-*-linux*)
 651     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 652     ;;
 653   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 654     noconfigdirs="$noconfigdirs ${libgcj}"
 655     noconfigdirs="$noconfigdirs target-examples"
 656     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 657     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 658     noconfigdirs="$noconfigdirs expect dejagnu"
 659     # the C++ libraries don't build on top of CE's C libraries
 660     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 661     noconfigdirs="$noconfigdirs target-newlib"
 662     case "${host}" in
 663       *-*-cygwin*) ;; # keep gdb and readline
 664       *) noconfigdirs="$noconfigdirs gdb readline"
 665          ;;
 666     esac
 667     libgloss_dir=wince
 668     ;;
 669   arc-*-*)
 670     noconfigdirs="$noconfigdirs target-libgloss"
 671     ;;
 672   arm-*-coff)
 673     noconfigdirs="$noconfigdirs ${libgcj}"
 674     libgloss_dir=arm
 675     ;;
 676   arm-*-elf* | arm*-*-eabi* )
 677     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 678     libgloss_dir=arm
 679     ;;
 680   arm*-*-linux-gnueabi)
 681     noconfigdirs="$noconfigdirs target-qthreads"
 682     case ${with_newlib} in
 683       no) noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 684     esac
 685     libgloss_dir=arm
 686     ;;
 687   arm*-*-symbianelf*)
 688     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 689     libgloss_dir=arm
 690     ;;
 691   arm-*-pe*)
 692     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 693     ;;
 694   arm-*-riscix*)
 695     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 696     ;;
 697   avr-*-*)
 698     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj} target-libssp"
 699     ;;
 700   bfin-*-*)
 701     unsupported_languages="$unsupported_languages java"
 702     noconfigdirs="$noconfigdirs target-boehm-gc"
 703     if test x${is_cross_compiler} != xno ; then
 704       target_configdirs="${target_configdirs} target-bsp target-cygmon"
 705     fi
 706     ;;
 707   c4x-*-* | tic4x-*-*)
 708     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 709     ;;
 710   c54x*-*-* | tic54x-*-*)
 711     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 712     ;;
 713   cr16-*-*)
 714     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 715     ;;
 716   cris-*-* | crisv32-*-*)
 717     unsupported_languages="$unsupported_languages java"
 718     case "${target}" in
 719       *-*-aout)
 720         unsupported_languages="$unsupported_languages fortran"
 721         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 722       *-*-elf) # See PR46792 regarding target-libffi.
 723         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 724       *-*-linux*)
 725         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 726       *)
 727         unsupported_languages="$unsupported_languages fortran"
 728         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 729     esac
 730     libgloss_dir=cris
 731     ;;
 732   d10v-*-*)
 733     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 734     ;;
 735   d30v-*-*)
 736     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 737     ;;
 738   fr30-*-elf*)
 739     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 740     ;;
 741   frv-*-*)
 742     noconfigdirs="$noconfigdirs ${libgcj}"
 743     ;;
 744   moxie-*-*)
 745     noconfigdirs="$noconfigdirs ${libgcj}"
 746     noconfigdirs="$noconfigdirs gprof"
 747     ;;
 748   h8300*-*-*)
 749     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 750     ;;
 751   h8500-*-*)
 752     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 753     ;;
 754   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 755     ;;
 756   hppa*64*-*-linux*)
 757     # In this case, it's because the hppa64-linux target is for
 758     # the kernel only at this point and has no libc, and thus no
 759     # headers, crt*.o, etc., all of which are needed by these.
 760     noconfigdirs="$noconfigdirs target-zlib"
 761     ;;
 762   hppa*-*-linux*)
 763     ;;
 764   hppa*-*-*elf* | \
 765   hppa*-*-lites* | \
 766   hppa*-*-openbsd* | \
 767   hppa*64*-*-*)
 768     noconfigdirs="$noconfigdirs ${libgcj}"
 769     ;;
 770   hppa*-hp-hpux11*)
 771     noconfigdirs="$noconfigdirs ld shellutils"
 772     ;;
 773   hppa*-*-pro*)
 774     libgloss_dir=pa
 775     ;;
 776   hppa*-*-*)
 777     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 778     # build on HP-UX 10.20.
 779     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 780     ;;
 781   i960-*-*)
 782     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 783     ;;
 784   ia64*-*-elf*)
 785     # No gdb support yet.
 786     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 787     ;;
 788   ia64*-**-hpux*)
 789     # No ld support yet.
 790     noconfigdirs="$noconfigdirs ${libgcj} libgui itcl ld"
 791     ;;
 792   ia64*-*-*vms*)
 793     # No gdb or ld support yet.
 794     noconfigdirs="$noconfigdirs ${libgcj} tix readline mmalloc libgui itcl gdb ld"
 795     ;;
 796   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 797     noconfigdirs="$noconfigdirs ${libgcj}"
 798     libgloss_dir=i386
 799     ;;
 800   i[[3456789]]86-*-linux*)
 801     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 802     # not build java stuff by default.
 803     case "${target}" in
 804       *-*-*libc1*)
 805         noconfigdirs="$noconfigdirs ${libgcj}";;
 806     esac
 807
 808     # This section makes it possible to build newlib natively on linux.
 809     # If we are using a cross compiler then don't configure newlib.
 810     if test x${is_cross_compiler} != xno ; then
 811       noconfigdirs="$noconfigdirs target-newlib"
 812     fi
 813     noconfigdirs="$noconfigdirs target-libgloss"
 814     # If we are not using a cross compiler, do configure newlib.
 815     # Note however, that newlib will only be configured in this situation
 816     # if the --with-newlib option has been given, because otherwise
 817     # 'target-newlib' will appear in skipdirs.
 818     ;;
 819   i[[3456789]]86-w64-mingw*)
 820     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 821     ;;
 822   i[[3456789]]86-*-mingw*)
 823     target_configdirs="$target_configdirs target-winsup"
 824     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 825     ;;
 826   x86_64-*-mingw*)
 827     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 828     ;;
 829   *-*-cygwin*)
 830     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 831     noconfigdirs="$noconfigdirs target-gperf target-libgloss"
 832     # always build newlib if winsup directory is present.
 833     if test -d "$srcdir/winsup/cygwin"; then
 834       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 835     elif test -d "$srcdir/newlib"; then
 836       echo "Warning: winsup/cygwin is missing so newlib can't be built."
 837     fi
 838     ;;
 839   i[[3456789]]86-*-interix* )
 840     ;;
 841   i[[3456789]]86-*-pe)
 842     noconfigdirs="$noconfigdirs target-libgloss"
 843     ;;
 844   i[[3456789]]86-*-sco3.2v5*)
 845     # The linker does not yet know about weak symbols in COFF,
 846     # and is not configured to handle mixed ELF and COFF.
 847     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 848     ;;
 849   i[[3456789]]86-*-sco*)
 850     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 851     ;;
 852   i[[3456789]]86-*-solaris2*)
 853     noconfigdirs="$noconfigdirs target-libgloss"
 854     ;;
 855   i[[3456789]]86-*-sysv4*)
 856     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 857     ;;
 858   i[[3456789]]86-*-beos*)
 859     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 860     ;;
 861   i[[3456789]]86-*-rdos*)
 862     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 863     ;;
 864   m32r-*-*)
 865     noconfigdirs="$noconfigdirs ${libgcj}"
 866     ;;
 867   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 868     noconfigdirs="$noconfigdirs target-libiberty"
 869     libgloss_dir=m68hc11
 870     ;;
 871   m68k-*-elf*)
 872     noconfigdirs="$noconfigdirs ${libgcj}"
 873     ;;
 874   m68k-*-coff*)
 875     noconfigdirs="$noconfigdirs ${libgcj}"
 876     ;;
 877   m68*-*-* | fido-*-*)
 878     libgloss_dir=m68k
 879     ;;
 880   mmix-*-*)
 881     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 882     unsupported_languages="$unsupported_languages fortran java"
 883     ;;
 884   mn10200-*-*)
 885     noconfigdirs="$noconfigdirs ${libgcj}"
 886     ;;
 887   mn10300-*-*)
 888     noconfigdirs="$noconfigdirs ${libgcj}"
 889     ;;
 890   mt-*-*)
 891     noconfigdirs="$noconfigdirs sim"
 892     ;;
 893   picochip-*-*)
 894     noconfigdirs="$noconfigdirs target-libiberty"
 895     ;;
 896   powerpc-*-aix*)
 897     # copied from rs6000-*-* entry
 898     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp target-newlib ${libgcj}"
 899     ;;
 900   powerpc*-*-winnt* | powerpc*-*-pe*)
 901     target_configdirs="$target_configdirs target-winsup"
 902     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 903     # always build newlib.
 904     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 905     ;;
 906     # This is temporary until we can link against shared libraries
 907   powerpcle-*-solaris*)
 908     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 909     libgloss_dir=rs6000
 910     ;;
 911   powerpc-*-beos*)
 912     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 913     ;;
 914   powerpc-*-eabi)
 915     noconfigdirs="$noconfigdirs ${libgcj}"
 916     libgloss_dir=rs6000
 917     ;;
 918   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 919     libgloss_dir=rs6000
 920     ;;
 921   rs6000-*-lynxos*)
 922     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 923     ;;
 924   rs6000-*-aix*)
 925     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp target-newlib ${libgcj}"
 926     ;;
 927   rs6000-*-*)
 928     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 929     ;;
 930   m68k-apollo-*)
 931     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 932     ;;
 933   microblaze*)
 934     noconfigdirs="$noconfigdirs gprof target-libssp ${libgcj}"
 935     ;;
 936   mips*-sde-elf*)
 937     skipdirs="$skipdirs target-libiberty"
 938     noconfigdirs="$noconfigdirs ${libgcj}"
 939     if test x$with_newlib = xyes; then
 940       noconfigdirs="$noconfigdirs gprof"
 941     fi
 942     libgloss_dir=mips
 943     ;;
 944   mips*-*-irix5*)
 945     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 946     ;;
 947   mips*-*-irix6*)
 948     # Linking libjava exceeds command-line length limits on at least
 949     # IRIX 6.2, but not on IRIX 6.5.
 950     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 951     # <oldham@codesourcery.com>
 952     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 953     ;;
 954   mips*-*-bsd*)
 955     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 956     ;;
 957   mips*-*-linux*)
 958     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 959     ;;
 960   mips*-*-*)
 961     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 962     libgloss_dir=mips
 963     ;;
 964   romp-*-*)
 965     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 966     ;;
 967   sh-*-* | sh64-*-*)
 968     case "${host}" in
 969       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 970       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 971       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 972       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 973     esac
 974     case "${target}" in
 975       sh*-*-elf)
 976          noconfigdirs="$noconfigdirs ${libgcj}" ;;
 977       *)
 978          noconfigdirs="$noconfigdirs target-libgloss ${libgcj}" ;;
 979     esac
 980     ;;
 981   sparclet-*-aout* | sparc86x-*-*)
 982     libgloss_dir=sparc
 983     ;;
 984   sparc-*-elf*)
 985     noconfigdirs="$noconfigdirs ${libgcj}"
 986     ;;
 987   sparc64-*-elf*)
 988     noconfigdirs="$noconfigdirs ${libgcj}"
 989     libgloss_dir=sparc
 990     ;;
 991   sparclite-*-*)
 992     noconfigdirs="$noconfigdirs ${libgcj}"
 993     libgloss_dir=sparc
 994     ;;
 995   sparc-*-sunos4*)
 996     noconfigdirs="$noconfigdirs ${libgcj}"
 997     if test x${is_cross_compiler} != xno ; then
 998            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 999     else
1000            use_gnu_ld=no
1001     fi
1002     ;;
1003   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
1004     noconfigdirs="$noconfigdirs ${libgcj}"
1005     ;;
1006   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
1007     ;;
1008   tic6x-*-*)
1009     noconfigdirs="$noconfigdirs gdb sim ${libgcj}"
1010     ;;
1011   v810-*-*)
1012     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
1013     ;;
1014   v850*-*-*)
1015     noconfigdirs="$noconfigdirs ${libgcj}"
1016     ;;
1017   vax-*-vms)
1018     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
1019     ;;
1020   vax-*-*)
1021     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
1022     ;;
1023   xtensa*-*-*)
1024     noconfigdirs="$noconfigdirs ${libgcj}"
1025     ;;
1026   ip2k-*-*)
1027     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
1028     ;;
1029   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
1030     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1031     ;;
1032   *-*-lynxos*)
1033     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
1034     ;;
1035   *-*-*)
1036     noconfigdirs="$noconfigdirs ${libgcj}"
1037     ;;
1038 esac
1039
1040 # If we aren't building newlib, then don't build libgloss, since libgloss
1041 # depends upon some newlib header files.
1042 case "${noconfigdirs}" in
1043   *target-libgloss*) ;;
1044   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1045 esac
1046
1047 # Work in distributions that contain no compiler tools, like Autoconf.
1048 tentative_cc=""
1049 host_makefile_frag=/dev/null
1050 if test -d ${srcdir}/config ; then
1051 case "${host}" in
1052   m68k-hp-hpux*)
1053     # Avoid "too much defining" errors from HPUX compiler.
1054     tentative_cc="cc -Wp,-H256000"
1055     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
1056     # If it's HP/UX ar, this should be harmless.
1057     RANLIB="ar ts"
1058     ;;
1059   m68k-apollo-sysv*)
1060     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
1061     ;;
1062   m68k-apollo-bsd*)
1063     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
1064     # chokes on bfd, the compiler won't let you assign integers to enums, and
1065     # other problems.  Defining CC to gcc is a questionable way to say "don't use
1066     # the apollo compiler" (the preferred version of GCC could be called cc,
1067     # or whatever), but I'm not sure leaving CC as cc is any better...
1068     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
1069     # Used to have BISON=yacc.
1070     tentative_cc=gcc
1071     ;;
1072   m88k-dg-dgux*)
1073     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
1074     ;;
1075   m88k-harris-cxux*)
1076     # Under CX/UX, we want to tell the compiler to use ANSI mode.
1077     tentative_cc="cc -Xa"
1078     host_makefile_frag="config/mh-cxux"
1079     ;;
1080   m88k-motorola-sysv*)
1081     ;;
1082   mips*-dec-ultrix*)
1083     tentative_cc="cc -Wf,-XNg1000"
1084     host_makefile_frag="config/mh-decstation"
1085     ;;
1086   mips*-nec-sysv4*)
1087     # The C compiler on NEC MIPS SVR4 needs bigger tables.
1088     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
1089     host_makefile_frag="config/mh-necv4"
1090     ;;
1091   mips*-sgi-irix4*)
1092     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
1093     # environment.  Also bump switch table size so that cp-parse will
1094     # compile.  Bump string length limit so linker builds.
1095     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
1096     ;;
1097   mips*-*-sysv4*)
1098     host_makefile_frag="config/mh-sysv4"
1099     ;;
1100   mips*-*-sysv*)
1101     # This is for a MIPS running RISC/os 4.52C.
1102
1103     # This is needed for GDB, but needs to be in the top-level make because
1104     # if a library is compiled with the bsd headers and gets linked with the
1105     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
1106     # a different size).
1107     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
1108     # known except to select the sysv environment.  Could we use /proc instead?
1109     # These "sysv environments" and "bsd environments" often end up being a pain.
1110     #
1111     # This is not part of CFLAGS because perhaps not all C compilers have this
1112     # option.
1113     tentative_cc="cc -systype sysv"
1114     ;;
1115   i370-ibm-opened*)
1116     tentative_cc="c89"
1117     ;;
1118   i[[3456789]]86-*-sysv5*)
1119     host_makefile_frag="config/mh-sysv5"
1120     ;;
1121   i[[3456789]]86-*-dgux*)
1122     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
1123     host_makefile_frag="config/mh-dgux386"
1124     ;;
1125   i[[3456789]]86-ncr-sysv4.3*)
1126     # The MetaWare compiler will generate a copyright message unless you
1127     # turn it off by adding the -Hnocopyr flag.
1128     tentative_cc="cc -Hnocopyr"
1129     ;;
1130   i[[3456789]]86-ncr-sysv4*)
1131     # for an NCR 3000 (i486/SVR4) system.
1132     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
1133     # This compiler not only emits obnoxious copyright messages every time
1134     # you run it, but it chokes and dies on a whole bunch of GNU source
1135     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
1136     tentative_cc="/usr/ccs/ATT/cc"
1137     host_makefile_frag="config/mh-ncr3000"
1138     ;;
1139   i[[3456789]]86-*-sco3.2v5*)
1140     ;;
1141   i[[3456789]]86-*-sco*)
1142     # The native C compiler botches some simple uses of const.  Unfortunately,
1143     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
1144     tentative_cc="cc -Dconst="
1145     host_makefile_frag="config/mh-sco"
1146     ;;
1147   i[[3456789]]86-*-udk*)
1148     host_makefile_frag="config/mh-sysv5"
1149     ;;
1150   i[[3456789]]86-*-solaris2*)
1151     host_makefile_frag="config/mh-sysv4"
1152     ;;
1153   i[[3456789]]86-*-msdosdjgpp*)
1154     host_makefile_frag="config/mh-djgpp"
1155     ;;
1156   *-cygwin*)
1157     ACX_CHECK_CYGWIN_CAT_WORKS
1158     host_makefile_frag="config/mh-cygwin"
1159     ;;
1160   *-mingw*)
1161     host_makefile_frag="config/mh-mingw"
1162     ;;
1163   *-interix*)
1164     host_makefile_frag="config/mh-interix"
1165     ;;
1166   vax-*-ultrix2*)
1167     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
1168     tentative_cc=gcc
1169     ;;
1170   *-*-solaris2*)
1171     host_makefile_frag="config/mh-solaris"
1172     ;;
1173   m68k-sun-sunos*)
1174     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
1175     # without overflowing the jump tables (-J says to use a 32 bit table)
1176     tentative_cc="cc -J"
1177     ;;
1178   hppa*-hp-hpux10*)
1179     tentative_cc="cc -Wp,-H256000"
1180     host_makefile_frag="config/mh-pa-hpux10"
1181     ;;
1182   hppa*-hp-hpux* | hppa*-*-hiux*)
1183     tentative_cc="cc -Wp,-H256000"
1184     host_makefile_frag="config/mh-pa"
1185     ;;
1186   hppa*-*)
1187     host_makefile_frag="config/mh-pa"
1188     ;;
1189   *-hp-hpux* | *-*-hiux*)
1190     tentative_cc="cc -Wp,-H256000"
1191     ;;
1192   rs6000-*-lynxos*)
1193     # /bin/cc is less than useful for our purposes.  Always use GCC
1194     tentative_cc="/usr/cygnus/progressive/bin/gcc"
1195     host_makefile_frag="config/mh-lynxrs6k"
1196     ;;
1197   *-*-darwin*)
1198     host_makefile_frag="config/mh-darwin"
1199     ;;
1200   powerpc-*-aix*)
1201     host_makefile_frag="config/mh-ppc-aix"
1202     ;;
1203   rs6000-*-aix*)
1204     host_makefile_frag="config/mh-ppc-aix"
1205     ;;
1206   *-*-lynxos*)
1207     # /bin/cc is less than useful for our purposes.  Always use GCC
1208     tentative_cc="/bin/gcc"
1209     ;;
1210   *-*-sysv4*)
1211     host_makefile_frag="config/mh-sysv4"
1212     ;;
1213   # This is placed last to prevent interfering with the cases above.
1214   i[[3456789]]86-*-*)
1215     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
1216     host_makefile_frag="config/mh-x86omitfp"
1217     ;;
1218 esac
1219 fi
1220
1221 # If we aren't going to be using gcc, see if we can extract a definition
1222 # of CC from the fragment.
1223 # Actually, use the 'pre-extracted' version above.
1224 if test -z "${CC}" && test "${build}" = "${host}" ; then
1225   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
1226   found=
1227   for dir in $PATH; do
1228     test -z "$dir" && dir=.
1229     if test -f $dir/gcc; then
1230       found=yes
1231       break
1232     fi
1233   done
1234   IFS="$save_ifs"
1235   if test -z "${found}" && test -n "${tentative_cc}" ; then
1236     CC=$tentative_cc
1237   fi
1238 fi
1239
1240 if test "${build}" != "${host}" ; then
1241   AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1242   AS_FOR_BUILD=${AS_FOR_BUILD-as}
1243   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1244   CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1245   GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj}
1246   GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1247   GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1248   DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1249   LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1250   NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1251   RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1252   WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1253   WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1254 else
1255   AR_FOR_BUILD="\$(AR)"
1256   AS_FOR_BUILD="\$(AS)"
1257   CC_FOR_BUILD="\$(CC)"
1258   CXX_FOR_BUILD="\$(CXX)"
1259   GCJ_FOR_BUILD="\$(GCJ)"
1260   GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1261   GOC_FOR_BUILD="\$(GOC)"
1262   DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1263   LD_FOR_BUILD="\$(LD)"
1264   NM_FOR_BUILD="\$(NM)"
1265   RANLIB_FOR_BUILD="\$(RANLIB)"
1266   WINDRES_FOR_BUILD="\$(WINDRES)"
1267   WINDMC_FOR_BUILD="\$(WINDMC)"
1268 fi
1269
1270 AC_PROG_CC
1271 AC_PROG_CXX
1272
1273 # We must set the default linker to the linker used by gcc for the correct
1274 # operation of libtool.  If LD is not defined and we are using gcc, try to
1275 # set the LD default to the ld used by gcc.
1276 if test -z "$LD"; then
1277   if test "$GCC" = yes; then
1278     case $build in
1279     *-*-mingw*)
1280       gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1281     *)
1282       gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1283     esac
1284     case $gcc_prog_ld in
1285     # Accept absolute paths.
1286     [[\\/]* | [A-Za-z]:[\\/]*)]
1287       LD="$gcc_prog_ld" ;;
1288     esac
1289   fi
1290 fi
1291
1292 ACX_PROG_GNAT
1293 ACX_PROG_CMP_IGNORE_INITIAL
1294
1295 # See if we are building gcc with C++.
1296 AC_ARG_ENABLE(build-with-cxx,
1297 [AS_HELP_STRING([--enable-build-with-cxx],
1298                 [build with C++ compiler instead of C compiler])],
1299 ENABLE_BUILD_WITH_CXX=$enableval,
1300 ENABLE_BUILD_WITH_CXX=no)
1301
1302 # Used for setting $lt_cv_objdir
1303 _LT_CHECK_OBJDIR
1304
1305 # Check for GMP, MPFR and MPC
1306 gmplibs="-lmpc -lmpfr -lgmp"
1307 gmpinc=
1308 have_gmp=no
1309
1310 # Specify a location for mpc
1311 # check for this first so it ends up on the link line before mpfr.
1312 AC_ARG_WITH(mpc,
1313 [AS_HELP_STRING([--with-mpc=PATH],
1314                 [specify prefix directory for installed MPC package.
1315                  Equivalent to --with-mpc-include=PATH/include
1316                  plus --with-mpc-lib=PATH/lib])])
1317 AC_ARG_WITH(mpc-include,
1318 [AS_HELP_STRING([--with-mpc-include=PATH],
1319                 [specify directory for installed MPC include files])])
1320 AC_ARG_WITH(mpc-lib,
1321 [AS_HELP_STRING([--with-mpc-lib=PATH],
1322                 [specify directory for the installed MPC library])])
1323
1324 if test "x$with_mpc" != x; then
1325   gmplibs="-L$with_mpc/lib $gmplibs"
1326   gmpinc="-I$with_mpc/include $gmpinc"
1327 fi
1328 if test "x$with_mpc_include" != x; then
1329   gmpinc="-I$with_mpc_include $gmpinc"
1330 fi
1331 if test "x$with_mpc_lib" != x; then
1332   gmplibs="-L$with_mpc_lib $gmplibs"
1333 fi
1334 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1335   gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1336   gmpinc='-I$$s/mpc/src '"$gmpinc"
1337   # Do not test the mpc version.  Assume that it is sufficient, since
1338   # it is in the source tree, and the library has not been built yet
1339   # but it would be included on the link line in the version check below
1340   # hence making the test fail.
1341   have_gmp=yes
1342 fi
1343
1344 # Specify a location for mpfr
1345 # check for this first so it ends up on the link line before gmp.
1346 AC_ARG_WITH(mpfr-dir,
1347 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1348 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1349 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1350
1351 AC_ARG_WITH(mpfr,
1352 [AS_HELP_STRING([--with-mpfr=PATH],
1353                 [specify prefix directory for installed MPFR package.
1354                  Equivalent to --with-mpfr-include=PATH/include
1355                  plus --with-mpfr-lib=PATH/lib])])
1356 AC_ARG_WITH(mpfr-include,
1357 [AS_HELP_STRING([--with-mpfr-include=PATH],
1358                 [specify directory for installed MPFR include files])])
1359 AC_ARG_WITH(mpfr-lib,
1360 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1361                 [specify directory for the installed MPFR library])])
1362
1363 if test "x$with_mpfr" != x; then
1364   gmplibs="-L$with_mpfr/lib $gmplibs"
1365   gmpinc="-I$with_mpfr/include $gmpinc"
1366 fi
1367 if test "x$with_mpfr_include" != x; then
1368   gmpinc="-I$with_mpfr_include $gmpinc"
1369 fi
1370 if test "x$with_mpfr_lib" != x; then
1371   gmplibs="-L$with_mpfr_lib $gmplibs"
1372 fi
1373 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1374   gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir $gmplibs"
1375   gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
1376   extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir"
1377   # Do not test the mpfr version.  Assume that it is sufficient, since
1378   # it is in the source tree, and the library has not been built yet
1379   # but it would be included on the link line in the version check below
1380   # hence making the test fail.
1381   have_gmp=yes
1382 fi
1383
1384 # Specify a location for gmp
1385 AC_ARG_WITH(gmp-dir,
1386 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1387 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1388 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1389
1390 AC_ARG_WITH(gmp,
1391 [AS_HELP_STRING([--with-gmp=PATH],
1392                 [specify prefix directory for the installed GMP package.
1393                  Equivalent to --with-gmp-include=PATH/include
1394                  plus --with-gmp-lib=PATH/lib])])
1395 AC_ARG_WITH(gmp-include,
1396 [AS_HELP_STRING([--with-gmp-include=PATH],
1397                 [specify directory for installed GMP include files])])
1398 AC_ARG_WITH(gmp-lib,
1399 [AS_HELP_STRING([--with-gmp-lib=PATH],
1400                 [specify directory for the installed GMP library])])
1401
1402
1403 if test "x$with_gmp" != x; then
1404   gmplibs="-L$with_gmp/lib $gmplibs"
1405   gmpinc="-I$with_gmp/include $gmpinc"
1406 fi
1407 if test "x$with_gmp_include" != x; then
1408   gmpinc="-I$with_gmp_include $gmpinc"
1409 fi
1410 if test "x$with_gmp_lib" != x; then
1411   gmplibs="-L$with_gmp_lib $gmplibs"
1412 fi
1413 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1414   gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1415   gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1416   extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1417   extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1418   # Do not test the gmp version.  Assume that it is sufficient, since
1419   # it is in the source tree, and the library has not been built yet
1420   # but it would be included on the link line in the version check below
1421   # hence making the test fail.
1422   have_gmp=yes
1423 fi
1424
1425 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1426   have_gmp=yes
1427   saved_CFLAGS="$CFLAGS"
1428   CFLAGS="$CFLAGS $gmpinc"
1429   # Check for the recommended and required versions of GMP.
1430   AC_MSG_CHECKING([for the correct version of gmp.h])
1431   AC_TRY_COMPILE([#include "gmp.h"],[
1432   #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1433   #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1434   #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,0)
1435   choke me
1436   #endif
1437   ], [AC_TRY_COMPILE([#include <gmp.h>],[
1438   #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1439   #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1440   #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1441   choke me
1442   #endif
1443   ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1444    [AC_MSG_RESULT([no]); have_gmp=no])
1445
1446   # If we have GMP, check the MPFR version.
1447   if test x"$have_gmp" = xyes; then
1448     # Check for the recommended and required versions of MPFR.
1449     AC_MSG_CHECKING([for the correct version of mpfr.h])
1450     AC_TRY_COMPILE([#include <gmp.h>
1451     #include <mpfr.h>],[
1452     #if MPFR_VERSION < MPFR_VERSION_NUM(2,3,1)
1453     choke me
1454     #endif
1455     ], [AC_TRY_COMPILE([#include <gmp.h>
1456     #include <mpfr.h>],[
1457     #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1458     choke me
1459     #endif
1460     ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1461      [AC_MSG_RESULT([no]); have_gmp=no])
1462   fi
1463
1464   # Check for the MPC header version.
1465   if test x"$have_gmp" = xyes ; then
1466     # Check for the recommended and required versions of MPC.
1467     AC_MSG_CHECKING([for the correct version of mpc.h])
1468     AC_TRY_COMPILE([#include <mpc.h>],[
1469     #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1470     choke me
1471     #endif
1472     ], [AC_TRY_COMPILE([#include <mpc.h>],[
1473     #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1474     choke me
1475     #endif
1476     ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1477      [AC_MSG_RESULT([no]); have_gmp=no])
1478   fi
1479
1480   # Now check the MPFR library.
1481   if test x"$have_gmp" = xyes; then
1482     saved_LIBS="$LIBS"
1483     LIBS="$LIBS $gmplibs"
1484     AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1485     AC_TRY_LINK([#include <mpc.h>],[
1486     mpfr_t n;
1487     mpfr_t x;
1488     mpc_t c;
1489     int t;
1490     mpfr_init (n);
1491     mpfr_init (x);
1492     mpfr_atan2 (n, n, x, GMP_RNDN);
1493     mpfr_erfc (n, x, GMP_RNDN);
1494     mpfr_subnormalize (x, t, GMP_RNDN);
1495     mpfr_clear(n);
1496     mpfr_clear(x);
1497     mpc_init2 (c, 53);
1498     mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1499     mpc_cosh (c, c, MPC_RNDNN);
1500     mpc_pow (c, c, c, MPC_RNDNN);
1501     mpc_acosh (c, c, MPC_RNDNN);
1502     mpc_clear (c);
1503     ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1504     LIBS="$saved_LIBS"
1505   fi
1506
1507   CFLAGS="$saved_CFLAGS"
1508
1509 # The library versions listed in the error message below should match
1510 # the HARD-minimums enforced above.
1511   if test x$have_gmp != xyes; then
1512     AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.3.1+ and MPC 0.8.0+.
1513 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1514 their locations.  Source code for these libraries can be found at
1515 their respective hosting sites as well as at
1516 ftp://gcc.gnu.org/pub/gcc/infrastructure/.  See also
1517 http://gcc.gnu.org/install/prerequisites.html for additional info.  If
1518 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1519 make sure that you have installed both the libraries and the header
1520 files.  They may be located in separate packages.])
1521   fi
1522 fi
1523
1524 # Flags needed for both GMP, MPFR and/or MPC.
1525 AC_SUBST(gmplibs)
1526 AC_SUBST(gmpinc)
1527 AC_SUBST(extra_mpfr_configure_flags)
1528 AC_SUBST(extra_mpc_gmp_configure_flags)
1529 AC_SUBST(extra_mpc_mpfr_configure_flags)
1530
1531 # Allow host libstdc++ to be specified for static linking with PPL.
1532 AC_ARG_WITH(host-libstdcxx,
1533 [AS_HELP_STRING([--with-host-libstdcxx=L],
1534                 [use linker arguments L to link with libstdc++
1535                  when linking with PPL])])
1536
1537 case $with_host_libstdcxx in
1538   no|yes)
1539     AC_MSG_ERROR([-with-host-libstdcxx needs an argument])
1540     ;;
1541 esac
1542
1543 # Linker flags to use for stage1 or when not boostrapping.
1544 AC_ARG_WITH(stage1-ldflags,
1545 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1546 [if test "$withval" = "no" -o "$withval" = "yes"; then
1547    stage1_ldflags=
1548  else
1549    stage1_ldflags=$withval
1550  fi],
1551 [stage1_ldflags=])
1552 AC_SUBST(stage1_ldflags)
1553
1554 # Libraries to use for stage1 or when not bootstrapping.
1555 AC_ARG_WITH(stage1-libs,
1556 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1557 [if test "$withval" = "no" -o "$withval" = "yes"; then
1558    stage1_libs=
1559  else
1560    stage1_libs=$withval
1561  fi],
1562 [stage1_libs=$with_host_libstdcxx])
1563 AC_SUBST(stage1_libs)
1564
1565 # Libraries to use for stage2 and later builds.  This defaults to the
1566 # argument passed to --with-host-libstdcxx.
1567 AC_ARG_WITH(boot-libs,
1568 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1569 [if test "$withval" = "no" -o "$withval" = "yes"; then
1570    poststage1_libs=
1571  else
1572    poststage1_libs=$withval
1573  fi],
1574 [poststage1_libs=$with_host_libstdcxx])
1575 AC_SUBST(poststage1_libs)
1576
1577 # Linker flags to use for stage2 and later builds.
1578 AC_ARG_WITH(boot-ldflags,
1579 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1580                 [linker flags for stage2 and later])],
1581 [if test "$withval" = "no" -o "$withval" = "yes"; then
1582    poststage1_ldflags=
1583  else
1584    poststage1_ldflags=$withval
1585  fi],
1586 [poststage1_ldflags=
1587  # In stages 2 and 3, default to linking libstdc++ and libgcc
1588  # statically.  But if the user explicitly specified the libraries to
1589  # use, trust that they are doing what they want.
1590  if test "$poststage1_libs" = ""; then
1591    poststage1_ldflags="-static-libstdc++ -static-libgcc"
1592  fi])
1593 AC_SUBST(poststage1_ldflags)
1594
1595 # Check for PPL
1596 ppllibs=
1597 pplinc=
1598 pwllib=
1599
1600 AC_ARG_WITH(ppl,
1601 [AS_HELP_STRING([--with-ppl=PATH],
1602                 [specify prefix directory for the installed PPL package.
1603                  Equivalent to --with-ppl-include=PATH/include
1604                  plus --with-ppl-lib=PATH/lib])])
1605 AC_ARG_WITH(ppl-include,
1606 [AS_HELP_STRING([--with-ppl-include=PATH],
1607                 [specify directory for installed PPL include files])])
1608 AC_ARG_WITH(ppl-lib,
1609 [AS_HELP_STRING([--with-ppl-lib=PATH],
1610                 [specify directory for the installed PPL library])])
1611
1612 AC_ARG_ENABLE(ppl-version-check,
1613 [AS_HELP_STRING([--disable-ppl-version-check],
1614                 [disable check for PPL version])])
1615
1616 case $with_ppl in
1617   yes | no | "")
1618     ;;
1619   *)
1620     ppllibs="-L$with_ppl/lib"
1621     pplinc="-I$with_ppl/include $pplinc"
1622     if test -d "$with_ppl/lib" && test -d "$with_ppl/include"; then
1623       with_ppl=yes
1624     else
1625       AC_MSG_ERROR([cannot find directories "$with_ppl/lib" or "$with_ppl/include"])
1626     fi
1627     ;;
1628 esac
1629
1630 if test x"$with_ppl_include" != x; then
1631   pplinc="-I$with_ppl_include $pplinc"
1632   with_ppl=yes
1633 fi
1634
1635 if test "x$with_ppl_lib" != x; then
1636   ppllibs="-L$with_ppl_lib"
1637   with_ppl=yes
1638 fi
1639
1640 if test x"$with_ppl$with_ppl_include$with_ppl_lib" = x && test -d ${srcdir}/ppl; then
1641   if test x"$enable_watchdog" = xyes; then
1642     pwllib="-lpwl"
1643   fi
1644   ppllibs='-L$$r/$(HOST_SUBDIR)/ppl/interfaces/C/'"$lt_cv_objdir"' -L$$r/$(HOST_SUBDIR)/ppl/src/'"$lt_cv_objdir"
1645   pplinc='-I$$r/$(HOST_SUBDIR)/ppl/src -I$$r/$(HOST_SUBDIR)/ppl/interfaces/C '
1646   enable_ppl_version_check=no
1647   with_ppl=yes
1648 fi
1649
1650 if test "x$with_ppl" != xno; then
1651   if test "x$pwllib" = x; then
1652     saved_LIBS="$LIBS"
1653     LIBS="$LIBS $ppllibs -lstdc++ -lm"
1654     AC_CHECK_LIB(pwl, PWL_handle_timeout, [pwllib="-lpwl"])
1655     LIBS="$saved_LIBS"
1656   fi
1657
1658   ppllibs="$ppllibs -lppl_c -lppl $pwllib -lgmpxx"
1659
1660   if test "$enable_ppl_version_check" != no; then
1661     saved_CFLAGS="$CFLAGS"
1662     CFLAGS="$CFLAGS $pplinc $gmpinc"
1663     AC_MSG_CHECKING([for version 0.11 (revision 0 or later) of PPL])
1664     AC_TRY_COMPILE([#include "ppl_c.h"],[
1665     #if PPL_VERSION_MAJOR != 0 || PPL_VERSION_MINOR < 11
1666     choke me
1667     #endif
1668     ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); ppllibs= ; pplinc= ; with_ppl=no ])
1669     CFLAGS="$saved_CFLAGS"
1670   fi
1671 fi
1672
1673 # Flags needed for PPL
1674 AC_SUBST(ppllibs)
1675 AC_SUBST(pplinc)
1676
1677
1678 # Check for CLOOG
1679
1680 dnl Provide configure switches and initialize clooginc & clooglibs
1681 dnl with user input.
1682 CLOOG_INIT_FLAGS
1683 if test "x$with_ppl" = "xno"; then
1684   dnl Only execute fail-action, if CLooG has been requested.
1685   CLOOG_REQUESTED([graphite_requested=yes], [graphite_requested=no])
1686   if test "${graphite_requested}" = yes; then
1687     AC_MSG_ERROR([Unable to find a usable PPL.  See config.log for details.])
1688   fi
1689   with_cloog=no
1690 fi
1691 if test "x${with_cloog}" = x && test "x${with_cloog_include}" = x \
1692   && test "x${with_cloog_lib}" = x && test -d ${srcdir}/cloog; then
1693   clooglibs='-L$$r/$(HOST_SUBDIR)/cloog/'"$lt_cv_objdir"' '
1694   clooginc='-I$$r/$(HOST_SUBDIR)/cloog/include -I$$s/cloog/include '
1695 fi
1696 if test "x$with_cloog" != "xno"; then
1697   dnl The minimal version of CLooG required for Graphite.
1698   dnl
1699   dnl If we use CLooG-Legacy, the provided version information is
1700   dnl ignored.
1701   CLOOG_CHECK_VERSION(0,16,1)
1702
1703   dnl Only execute fail-action, if CLooG has been requested.
1704   CLOOG_IF_FAILED([
1705     AC_MSG_ERROR([Unable to find a usable CLooG.  See config.log for details.])])
1706 fi
1707
1708 # Check for LTO support.
1709 AC_ARG_ENABLE(lto,
1710 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1711 enable_lto=$enableval,
1712 enable_lto=yes; default_enable_lto=yes)
1713
1714 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1715   build_lto_plugin=yes
1716 ],[if test x"$default_enable_lto" = x"yes" ; then
1717     case $target in
1718       *-apple-darwin9 | *-cygwin* | *-mingw*) ;;
1719       # On other non-ELF platforms, LTO has yet to be validated.
1720       *) enable_lto=no ;;
1721     esac
1722   else
1723   # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1724   # It would also be nice to check the binutils support, but we don't
1725   # have gcc_GAS_CHECK_FEATURE available here.  For now, we'll just
1726   # warn during gcc/ subconfigure; unless you're bootstrapping with
1727   # -flto it won't be needed until after installation anyway.
1728     case $target in
1729       *-cygwin* | *-mingw* | *-apple-darwin*) ;;
1730       *) if test x"$enable_lto" = x"yes"; then
1731         AC_MSG_ERROR([LTO support is not enabled for this target.])
1732         fi
1733       ;;
1734     esac
1735   fi
1736   # Among non-ELF, only Windows platforms support the lto-plugin so far.
1737   # Build it unless LTO was explicitly disabled.
1738   case $target in
1739     *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1740     *) ;;
1741   esac
1742 ])
1743
1744
1745 # By default, C is the only stage 1 language.
1746 stage1_languages=,c,
1747
1748 # Target libraries that we bootstrap.
1749 bootstrap_target_libs=,target-libgcc,
1750
1751 # Figure out what language subdirectories are present.
1752 # Look if the user specified --enable-languages="..."; if not, use
1753 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1754 # go away some day.
1755 # NB:  embedded tabs in this IF block -- do not untabify
1756 if test -d ${srcdir}/gcc; then
1757   if test x"${enable_languages+set}" != xset; then
1758     if test x"${LANGUAGES+set}" = xset; then
1759       enable_languages="${LANGUAGES}"
1760         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1761     else
1762       enable_languages=all
1763     fi
1764   else
1765     if test x"${enable_languages}" = x ||
1766        test x"${enable_languages}" = xyes;
1767        then
1768       echo configure.in: --enable-languages needs at least one language argument 1>&2
1769       exit 1
1770     fi
1771   fi
1772   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1773
1774   # 'f95' is the old name for the 'fortran' language. We issue a warning
1775   # and make the substitution.
1776   case ,${enable_languages}, in
1777     *,f95,*)
1778       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1779       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1780       ;;
1781   esac
1782
1783   # First scan to see if an enabled language requires some other language.
1784   # We assume that a given config-lang.in will list all the language
1785   # front ends it requires, even if some are required indirectly.
1786   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1787     case ${lang_frag} in
1788       ..) ;;
1789       # The odd quoting in the next line works around
1790       # an apparent bug in bash 1.12 on linux.
1791       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1792       *)
1793         # From the config-lang.in, get $language, $lang_requires, and
1794         # $lang_requires_boot_languages.
1795         language=
1796         lang_requires=
1797         lang_requires_boot_languages=
1798         . ${lang_frag}
1799         for other in ${lang_requires} ${lang_requires_boot_languages}; do
1800           case ,${enable_languages}, in
1801             *,$other,*) ;;
1802             *,all,*) ;;
1803             *,$language,*)
1804               echo " \`$other' language required by \`$language'; enabling" 1>&2
1805               enable_languages="${enable_languages},${other}"
1806               ;;
1807           esac
1808         done
1809         for other in ${lang_requires_boot_languages} ; do
1810           if test "$other" != "c"; then
1811             case ,${enable_stage1_languages}, in
1812               *,$other,*) ;;
1813               *,all,*) ;;
1814               *)
1815                 case ,${enable_languages}, in
1816                   *,$language,*)
1817                     echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1818                     enable_stage1_languages="$enable_stage1_languages,${other}"
1819                     ;;
1820                 esac
1821                 ;;
1822             esac
1823           fi
1824         done
1825         ;;
1826     esac
1827   done
1828
1829   new_enable_languages=,c,
1830
1831   # If LTO is enabled, add the LTO front end.
1832   extra_host_libiberty_configure_flags=
1833   if test "$enable_lto" = "yes" ; then
1834     case ,${enable_languages}, in
1835       *,lto,*) ;;
1836       *) enable_languages="${enable_languages},lto" ;;
1837     esac
1838     if test "${build_lto_plugin}" = "yes" ; then
1839       configdirs="$configdirs lto-plugin"
1840       extra_host_libiberty_configure_flags=--enable-shared
1841     fi
1842   fi
1843   AC_SUBST(extra_host_libiberty_configure_flags)
1844
1845   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1846   potential_languages=,c,
1847
1848   enabled_target_libs=
1849   disabled_target_libs=
1850
1851   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1852     case ${lang_frag} in
1853       ..) ;;
1854       # The odd quoting in the next line works around
1855       # an apparent bug in bash 1.12 on linux.
1856       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1857       *)
1858         # From the config-lang.in, get $language, $target_libs,
1859         # $lang_dirs, $boot_language, and $build_by_default
1860         language=
1861         target_libs=
1862         lang_dirs=
1863         subdir_requires=
1864         boot_language=no
1865         build_by_default=yes
1866         . ${lang_frag}
1867         if test x${language} = x; then
1868           echo "${lang_frag} doesn't set \$language." 1>&2
1869           exit 1
1870         fi
1871
1872         if test "$language" = "c++" \
1873            && test "$ENABLE_BUILD_WITH_CXX" = "yes"; then
1874           boot_language=yes
1875         fi
1876
1877         case ,${enable_languages}, in
1878           *,${language},*)
1879             # Language was explicitly selected; include it.
1880             add_this_lang=yes
1881             ;;
1882           *,all,*)
1883             # 'all' was selected, select it if it is a default language
1884             add_this_lang=${build_by_default}
1885             ;;
1886           *)
1887             add_this_lang=no
1888             ;;
1889         esac
1890
1891         # Disable languages that need other directories if these aren't available.
1892         for i in $subdir_requires; do
1893           test -f "$srcdir/gcc/$i/config-lang.in" && continue
1894           case ,${enable_languages}, in
1895             *,${language},*)
1896               # Specifically requested language; tell them.
1897               AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1898               ;;
1899             *)
1900               # Silently disable.
1901               add_this_lang=unsupported
1902               ;;
1903           esac
1904         done
1905
1906         # Disable Ada if no preexisting GNAT is available.
1907         case ,${enable_languages},:${language}:${have_gnat} in
1908           *,${language},*:ada:no)
1909             # Specifically requested language; tell them.
1910             AC_MSG_ERROR([GNAT is required to build $language])
1911             ;;
1912           *:ada:no)
1913             # Silently disable.
1914             add_this_lang=unsupported
1915             ;;
1916         esac
1917
1918         # Disable a language that is unsupported by the target.
1919         case " $unsupported_languages " in
1920           *" $language "*)
1921             add_this_lang=unsupported
1922             ;;
1923         esac
1924
1925         case $add_this_lang in
1926           unsupported)
1927             # Remove language-dependent dirs.
1928             disabled_target_libs="$disabled_target_libs $target_libs"
1929             noconfigdirs="$noconfigdirs $lang_dirs"
1930             ;;
1931           no)
1932             # Remove language-dependent dirs; still show language as supported.
1933             disabled_target_libs="$disabled_target_libs $target_libs"
1934             noconfigdirs="$noconfigdirs $lang_dirs"
1935             potential_languages="${potential_languages}${language},"
1936             ;;
1937           yes)
1938             new_enable_languages="${new_enable_languages}${language},"
1939             potential_languages="${potential_languages}${language},"
1940             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1941             enabled_target_libs="$enabled_target_libs $target_libs"
1942             case "${boot_language}:,$enable_stage1_languages," in
1943               yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
1944                 # Add to (comma-separated) list of stage 1 languages.
1945                 case ",$stage1_languages," in
1946                   *,$language,* | ,yes, | ,all,) ;;
1947                   *) stage1_languages="${stage1_languages}${language}," ;;
1948                 esac
1949                 # We need to bootstrap any supporting libraries.
1950                 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
1951                 ;;
1952             esac
1953             ;;
1954         esac
1955         ;;
1956     esac
1957   done
1958
1959   # Add target libraries which are only needed for disabled languages
1960   # to noconfigdirs.
1961   if test -n "$disabled_target_libs"; then
1962     for dir in $disabled_target_libs; do
1963       case " $enabled_target_libs " in
1964       *" ${dir} "*) ;;
1965       *) noconfigdirs="$noconfigdirs $dir" ;;
1966       esac
1967     done
1968   fi
1969
1970   AC_ARG_ENABLE(stage1-languages,
1971   [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
1972                   [choose additional languages to build during
1973                   stage1.  Mostly useful for compiler development])],
1974   [case ,${enable_stage1_languages}, in
1975     ,no,|,,)
1976       # Set it to something that will have no effect in the loop below
1977       enable_stage1_languages=c ;;
1978     ,yes,)
1979       enable_stage1_languages=`echo $new_enable_languages | \
1980         sed -e "s/^,//" -e "s/,$//" ` ;;
1981     *,all,*)
1982       enable_stage1_languages=`echo ,$enable_stage1_languages, | \
1983         sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
1984   esac
1985
1986   # Add "good" languages from enable_stage1_languages to stage1_languages,
1987   # while "bad" languages go in missing_languages.  Leave no duplicates.
1988   for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
1989     case $potential_languages in
1990       *,$i,*)
1991         case $stage1_languages in
1992           *,$i,*) ;;
1993           *) stage1_languages="$stage1_languages$i," ;;
1994         esac ;;
1995       *)
1996         case $missing_languages in
1997           *,$i,*) ;;
1998           *) missing_languages="$missing_languages$i," ;;
1999         esac ;;
2000      esac
2001   done])
2002
2003   # Remove leading/trailing commas that were added for simplicity
2004   potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2005   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2006   stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2007   new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2008
2009   if test "x$missing_languages" != x; then
2010     AC_MSG_ERROR([
2011 The following requested languages could not be built: ${missing_languages}
2012 Supported languages are: ${potential_languages}])
2013   fi
2014   if test "x$new_enable_languages" != "x$enable_languages"; then
2015     echo The following languages will be built: ${new_enable_languages}
2016     enable_languages="$new_enable_languages"
2017   fi
2018
2019   AC_SUBST(stage1_languages)
2020   ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2021 fi
2022
2023 # Handle --disable-<component> generically.
2024 for dir in $configdirs $build_configdirs $target_configdirs ; do
2025   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2026   varname=`echo $dirname | sed -e s/+/_/g`
2027   if eval test x\${enable_${varname}} "=" xno ; then
2028     noconfigdirs="$noconfigdirs $dir"
2029   fi
2030 done
2031
2032 # Check for Boehm's garbage collector
2033 AC_ARG_ENABLE(objc-gc,
2034 [AS_HELP_STRING([--enable-objc-gc],
2035                 [enable use of Boehm's garbage collector with the
2036                  GNU Objective-C runtime])],
2037 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
2038   *,objc,*:*:yes:*target-boehm-gc*)
2039     AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
2040     ;;
2041 esac])
2042
2043 # Make sure we only build Boehm's garbage collector if required.
2044 case ,${enable_languages},:${enable_objc_gc} in
2045   *,objc,*:yes)
2046     # Keep target-boehm-gc if requested for Objective-C.
2047     ;;
2048   *)
2049     # Otherwise remove target-boehm-gc depending on target-libjava.
2050     if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
2051       noconfigdirs="$noconfigdirs target-boehm-gc"
2052     fi
2053     ;;
2054 esac
2055
2056 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2057 # $build_configdirs and $target_configdirs.
2058 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2059
2060 notsupp=""
2061 for dir in . $skipdirs $noconfigdirs ; do
2062   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2063   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2064     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2065     if test -r $srcdir/$dirname/configure ; then
2066       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2067         true
2068       else
2069         notsupp="$notsupp $dir"
2070       fi
2071     fi
2072   fi
2073   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2074     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2075     if test -r $srcdir/$dirname/configure ; then
2076       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2077         true
2078       else
2079         notsupp="$notsupp $dir"
2080       fi
2081     fi
2082   fi
2083   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2084     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2085     if test -r $srcdir/$dirname/configure ; then
2086       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2087         true
2088       else
2089         notsupp="$notsupp $dir"
2090       fi
2091     fi
2092   fi
2093 done
2094
2095 # Sometimes the tools are distributed with libiberty but with no other
2096 # libraries.  In that case, we don't want to build target-libiberty.
2097 # Don't let libgcc imply libiberty either.
2098 if test -n "${target_configdirs}" ; then
2099   libgcc=
2100   others=
2101   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
2102     if test "$i" = "libgcc"; then
2103       libgcc=target-libgcc
2104     elif test "$i" != "libiberty" ; then
2105       if test -r $srcdir/$i/configure ; then
2106         others=yes;
2107         break;
2108       fi
2109     fi
2110   done
2111   if test -z "${others}" ; then
2112     target_configdirs=$libgcc
2113   fi
2114 fi
2115
2116 # Quietly strip out all directories which aren't configurable in this tree.
2117 # This relies on all configurable subdirectories being autoconfiscated, which
2118 # is now the case.
2119 build_configdirs_all="$build_configdirs"
2120 build_configdirs=
2121 for i in ${build_configdirs_all} ; do
2122   j=`echo $i | sed -e s/build-//g`
2123   if test -f ${srcdir}/$j/configure ; then
2124     build_configdirs="${build_configdirs} $i"
2125   fi
2126 done
2127
2128 configdirs_all="$configdirs"
2129 configdirs=
2130 for i in ${configdirs_all} ; do
2131   if test -f ${srcdir}/$i/configure ; then
2132     configdirs="${configdirs} $i"
2133   fi
2134 done
2135
2136 target_configdirs_all="$target_configdirs"
2137 target_configdirs=
2138 for i in ${target_configdirs_all} ; do
2139   j=`echo $i | sed -e s/target-//g`
2140   if test -f ${srcdir}/$j/configure ; then
2141     target_configdirs="${target_configdirs} $i"
2142   fi
2143 done
2144
2145 # Produce a warning message for the subdirs we can't configure.
2146 # This isn't especially interesting in the Cygnus tree, but in the individual
2147 # FSF releases, it's important to let people know when their machine isn't
2148 # supported by the one or two programs in a package.
2149
2150 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2151   # If $appdirs is non-empty, at least one of those directories must still
2152   # be configured, or we error out.  (E.g., if the gas release supports a
2153   # specified target in some subdirs but not the gas subdir, we shouldn't
2154   # pretend that all is well.)
2155   if test -n "$appdirs" ; then
2156     for dir in $appdirs ; do
2157       if test -r $dir/Makefile.in ; then
2158         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2159           appdirs=""
2160           break
2161         fi
2162         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2163           appdirs=""
2164           break
2165         fi
2166       fi
2167     done
2168     if test -n "$appdirs" ; then
2169       echo "*** This configuration is not supported by this package." 1>&2
2170       exit 1
2171     fi
2172   fi
2173   # Okay, some application will build, or we don't care to check.  Still
2174   # notify of subdirs not getting built.
2175   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2176   echo "    ${notsupp}" 1>&2
2177   echo "    (Any other directories should still work fine.)" 1>&2
2178 fi
2179
2180 case "$host" in
2181   *msdosdjgpp*)
2182     enable_gdbtk=no ;;
2183 esac
2184
2185 # To find our prefix, in gcc_cv_tool_prefix.
2186 ACX_TOOL_DIRS
2187
2188 copy_dirs=
2189
2190 AC_ARG_WITH([build-sysroot],
2191   [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2192                   [use sysroot as the system root during the build])],
2193   [if test x"$withval" != x ; then
2194      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2195    fi],
2196   [SYSROOT_CFLAGS_FOR_TARGET=])
2197 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2198
2199 AC_ARG_WITH([debug-prefix-map],
2200   [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2201                   [map A to B, C to D ... in debug information])],
2202   [if test x"$withval" != x; then
2203      DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2204      for debug_map in $withval; do
2205        DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2206      done
2207    fi],
2208   [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2209 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2210
2211 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2212 # might be empty or "-g".  We don't require a C++ compiler, so CXXFLAGS
2213 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2214 # We want to ensure that TARGET libraries (which we know are built with
2215 # gcc) are built with "-O2 -g", so include those options when setting
2216 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2217 if test "x$CFLAGS_FOR_TARGET" = x; then
2218   CFLAGS_FOR_TARGET=$CFLAGS
2219   case " $CFLAGS " in
2220     *" -O2 "*) ;;
2221     *) CFLAGS_FOR_TARGET="-O2 $CFLAGS" ;;
2222   esac
2223   case " $CFLAGS " in
2224     *" -g "* | *" -g3 "*) ;;
2225     *) CFLAGS_FOR_TARGET="-g $CFLAGS" ;;
2226   esac
2227 fi
2228 AC_SUBST(CFLAGS_FOR_TARGET)
2229
2230 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2231   CXXFLAGS_FOR_TARGET=$CXXFLAGS
2232   case " $CXXFLAGS " in
2233     *" -O2 "*) ;;
2234     *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS" ;;
2235   esac
2236   case " $CXXFLAGS " in
2237     *" -g "* | *" -g3 "*) ;;
2238     *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS" ;;
2239   esac
2240 fi
2241 AC_SUBST(CXXFLAGS_FOR_TARGET)
2242
2243 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
2244 # the named directory are copied to $(tooldir)/sys-include.
2245 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2246   if test x${is_cross_compiler} = xno ; then
2247     echo 1>&2 '***' --with-headers is only supported when cross compiling
2248     exit 1
2249   fi
2250   if test x"${with_headers}" != xyes ; then
2251     x=${gcc_cv_tool_prefix}
2252     copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2253   fi
2254 fi
2255
2256 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
2257 # the name directories are copied to $(tooldir)/lib.  Multiple directories
2258 # are permitted.
2259 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2260   if test x${is_cross_compiler} = xno ; then
2261     echo 1>&2 '***' --with-libs is only supported when cross compiling
2262     exit 1
2263   fi
2264   if test x"${with_libs}" != xyes ; then
2265     # Copy the libraries in reverse order, so that files in the first named
2266     # library override files in subsequent libraries.
2267     x=${gcc_cv_tool_prefix}
2268     for l in ${with_libs}; do
2269       copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2270     done
2271   fi
2272 fi
2273
2274 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2275 #
2276 # This is done by determining whether or not the appropriate directory
2277 # is available, and by checking whether or not specific configurations
2278 # have requested that this magic not happen.
2279 #
2280 # The command line options always override the explicit settings in
2281 # configure.in, and the settings in configure.in override this magic.
2282 #
2283 # If the default for a toolchain is to use GNU as and ld, and you don't
2284 # want to do that, then you should use the --without-gnu-as and
2285 # --without-gnu-ld options for the configure script.  Similarly, if
2286 # the default is to use the included zlib and you don't want to do that,
2287 # you should use the --with-system-zlib option for the configure script.
2288
2289 if test x${use_gnu_as} = x &&
2290    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2291   with_gnu_as=yes
2292   extra_host_args="$extra_host_args --with-gnu-as"
2293 fi
2294
2295 if test x${use_gnu_ld} = x &&
2296    echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2297   with_gnu_ld=yes
2298   extra_host_args="$extra_host_args --with-gnu-ld"
2299 fi
2300
2301 if test x${use_included_zlib} = x &&
2302    echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2303   :
2304 else
2305   with_system_zlib=yes
2306   extra_host_args="$extra_host_args --with-system-zlib"
2307 fi
2308
2309 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2310 # can detect this case.
2311
2312 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2313   with_newlib=yes
2314   extra_host_args="$extra_host_args --with-newlib"
2315 fi
2316
2317 # Handle ${copy_dirs}
2318 set fnord ${copy_dirs}
2319 shift
2320 while test $# != 0 ; do
2321   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2322     :
2323   else
2324     echo Copying $1 to $2
2325
2326     # Use the install script to create the directory and all required
2327     # parent directories.
2328     if test -d $2 ; then
2329       :
2330     else
2331       echo >config.temp
2332       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2333     fi
2334
2335     # Copy the directory, assuming we have tar.
2336     # FIXME: Should we use B in the second tar?  Not all systems support it.
2337     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2338
2339     # It is the responsibility of the user to correctly adjust all
2340     # symlinks.  If somebody can figure out how to handle them correctly
2341     # here, feel free to add the code.
2342
2343     echo $1 > $2/COPIED
2344   fi
2345   shift; shift
2346 done
2347
2348 # Determine a target-dependent exec_prefix that the installed
2349 # gcc will search in.  Keep this list sorted by triplet, with
2350 # the *-*-osname triplets last.
2351 md_exec_prefix=
2352 case "${target}" in
2353   alpha*-*-*vms*)
2354     md_exec_prefix=/gnu/lib/gcc-lib
2355     ;;
2356   i[[34567]]86-pc-msdosdjgpp*)
2357     md_exec_prefix=/dev/env/DJDIR/bin
2358     ;;
2359   i[[34567]]86-*-sco3.2v5*)
2360     if test $with_gnu_as = yes; then
2361       md_exec_prefix=/usr/gnu/bin
2362     else
2363       md_exec_prefix=/usr/ccs/bin/elf
2364     fi
2365     ;;
2366
2367   mn10300-*-* | \
2368   powerpc-*-chorusos* | \
2369   powerpc*-*-eabi* | \
2370   powerpc*-*-sysv* | \
2371   powerpc*-*-kaos* | \
2372   s390x-ibm-tpf*)
2373     md_exec_prefix=/usr/ccs/bin
2374     ;;
2375   sparc64-*-elf*)
2376     ;;
2377   v850*-*-*)
2378     md_exec_prefix=/usr/ccs/bin
2379     ;;
2380   xtensa*-*-elf*)
2381     ;;
2382
2383   *-*-beos* | \
2384   *-*-elf* | \
2385   *-*-hpux* | \
2386   *-*-netware* | \
2387   *-*-nto-qnx* | \
2388   *-*-rtems* | \
2389   *-*-solaris2* | \
2390   *-*-sysv[[45]]* | \
2391   *-*-vxworks* | \
2392   *-wrs-windiss)
2393     md_exec_prefix=/usr/ccs/bin
2394     ;;
2395 esac
2396
2397 extra_arflags_for_target=
2398 extra_nmflags_for_target=
2399 extra_ranlibflags_for_target=
2400 target_makefile_frag=/dev/null
2401 case "${target}" in
2402   mep*-*-*)
2403     target_makefile_frag="config/mt-mep"
2404     ;;
2405   spu-*-*)
2406     target_makefile_frag="config/mt-spu"
2407     ;;
2408   mips*-sde-elf*)
2409     target_makefile_frag="config/mt-sde"
2410     ;;
2411   mipsisa*-*-elfoabi*)
2412     target_makefile_frag="config/mt-mips-elfoabi"
2413     ;;
2414   mips*-*-*linux* | mips*-*-gnu*)
2415     target_makefile_frag="config/mt-mips-gnu"
2416     ;;
2417   *-*-netware*)
2418     target_makefile_frag="config/mt-netware"
2419     ;;
2420   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2421     target_makefile_frag="config/mt-gnu"
2422     ;;
2423   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2424     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2425     # commands to handle both 32-bit and 64-bit objects.  These flags are
2426     # harmless if we're using GNU nm or ar.
2427     extra_arflags_for_target=" -X32_64"
2428     extra_nmflags_for_target=" -B -X32_64"
2429     ;;
2430   *-*-darwin[[3-9]]*)
2431     # ranlib before Darwin10 requires the -c flag to look at common symbols.
2432     extra_ranlibflags_for_target=" -c"
2433     ;;
2434   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
2435     target_makefile_frag="config/mt-wince"
2436     ;;
2437 esac
2438
2439 alphaieee_frag=/dev/null
2440 case $target in
2441   alpha*-*-*)
2442     # This just makes sure to use the -mieee option to build target libs.
2443     # This should probably be set individually by each library.
2444     alphaieee_frag="config/mt-alphaieee"
2445     ;;
2446 esac
2447
2448 # If --enable-target-optspace always use -Os instead of -O2 to build
2449 # the target libraries, similarly if it is not specified, use -Os
2450 # on selected platforms.
2451 ospace_frag=/dev/null
2452 case "${enable_target_optspace}:${target}" in
2453   yes:*)
2454     ospace_frag="config/mt-ospace"
2455     ;;
2456   :d30v-*)
2457     ospace_frag="config/mt-d30v"
2458     ;;
2459   :m32r-* | :d10v-* | :fr30-*)
2460     ospace_frag="config/mt-ospace"
2461     ;;
2462   no:* | :*)
2463     ;;
2464   *)
2465     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2466     ;;
2467 esac
2468
2469 # Default to using --with-stabs for certain targets.
2470 if test x${with_stabs} = x ; then
2471   case "${target}" in
2472   mips*-*-irix[[56]]*)
2473     ;;
2474   mips*-*-* | alpha*-*-osf*)
2475     with_stabs=yes;
2476     extra_host_args="${extra_host_args} --with-stabs"
2477     ;;
2478   esac
2479 fi
2480
2481 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
2482 # them automatically.
2483 case "${host}" in
2484   hppa*64*-*-hpux11*)
2485     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
2486     ;;
2487 esac
2488
2489 # Some systems (e.g., one of the i386-aix systems the gas testers are
2490 # using) don't handle "\$" correctly, so don't use it here.
2491 tooldir='${exec_prefix}'/${target_noncanonical}
2492 build_tooldir=${tooldir}
2493
2494 # Create a .gdbinit file which runs the one in srcdir
2495 # and tells GDB to look there for source files.
2496
2497 if test -r ${srcdir}/.gdbinit ; then
2498   case ${srcdir} in
2499     .) ;;
2500     *) cat > ./.gdbinit <<EOF
2501 # ${NO_EDIT}
2502 dir ${srcdir}
2503 dir .
2504 source ${srcdir}/.gdbinit
2505 EOF
2506     ;;
2507   esac
2508 fi
2509
2510 # Make sure that the compiler is able to generate an executable.  If it
2511 # can't, we are probably in trouble.  We don't care whether we can run the
2512 # executable--we might be using a cross compiler--we only care whether it
2513 # can be created.  At this point the main configure script has set CC.
2514 we_are_ok=no
2515 echo "int main () { return 0; }" > conftest.c
2516 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2517 if test $? = 0 ; then
2518   if test -s conftest || test -s conftest.exe ; then
2519     we_are_ok=yes
2520   fi
2521 fi
2522 case $we_are_ok in
2523   no)
2524     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2525     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2526     rm -f conftest*
2527     exit 1
2528     ;;
2529 esac
2530 rm -f conftest*
2531
2532 # The Solaris /usr/ucb/cc compiler does not appear to work.
2533 case "${host}" in
2534   sparc-sun-solaris2*)
2535       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
2536       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
2537           could_use=
2538           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
2539           if test -d /opt/cygnus/bin ; then
2540               if test "$could_use" = "" ; then
2541                   could_use="/opt/cygnus/bin"
2542               else
2543                   could_use="$could_use or /opt/cygnus/bin"
2544               fi
2545           fi
2546         if test "$could_use" = "" ; then
2547             echo "Warning: compilation may fail because you're using"
2548             echo "/usr/ucb/cc.  You should change your PATH or CC "
2549             echo "variable and rerun configure."
2550         else
2551             echo "Warning: compilation may fail because you're using"
2552             echo "/usr/ucb/cc, when you should use the C compiler from"
2553             echo "$could_use.  You should change your"
2554             echo "PATH or CC variable and rerun configure."
2555         fi
2556       fi
2557   ;;
2558 esac
2559
2560 # Decide which environment variable is used to find dynamic libraries.
2561 case "${host}" in
2562   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2563   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2564   *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2565   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2566 esac
2567
2568 # On systems where the dynamic library environment variable is PATH,
2569 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2570 # built executables to PATH.
2571 if test "$RPATH_ENVVAR" = PATH; then
2572   GCC_SHLIB_SUBDIR=/shlib
2573 else
2574   GCC_SHLIB_SUBDIR=
2575 fi
2576
2577 # Record target_configdirs and the configure arguments for target and
2578 # build configuration in Makefile.
2579 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2580 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2581
2582 # If we are building libgomp, bootstrap it.
2583 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2584   bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2585 fi
2586
2587 # Determine whether gdb needs tk/tcl or not.
2588 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2589 # and in that case we want gdb to be built without tk.  Ugh!
2590 # In fact I believe gdb is the *only* package directly dependent on tk,
2591 # so we should be able to put the 'maybe's in unconditionally and
2592 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
2593 # 100% sure that that's safe though.
2594
2595 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2596 case "$enable_gdbtk" in
2597   no)
2598     GDB_TK="" ;;
2599   yes)
2600     GDB_TK="${gdb_tk}" ;;
2601   *)
2602     # Only add the dependency on gdbtk when GDBtk is part of the gdb
2603     # distro.  Eventually someone will fix this and move Insight, nee
2604     # gdbtk to a separate directory.
2605     if test -d ${srcdir}/gdb/gdbtk ; then
2606       GDB_TK="${gdb_tk}"
2607     else
2608       GDB_TK=""
2609     fi
2610     ;;
2611 esac
2612 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2613 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2614
2615 # Strip out unwanted targets.
2616
2617 # While at that, we remove Makefiles if we were started for recursive
2618 # configuration, so that the top-level Makefile reconfigures them,
2619 # like we used to do when configure itself was recursive.
2620
2621 # Loop over modules.  We used to use the "$extrasub" feature from Autoconf
2622 # but now we're fixing up the Makefile ourselves with the additional
2623 # commands passed to AC_CONFIG_FILES.  Use separate variables
2624 # extrasub-{build,host,target} not because there is any reason to split
2625 # the substitutions up that way, but only to remain below the limit of
2626 # 99 commands in a script, for HP-UX sed.
2627 # Do not nest @if/@endif pairs, because configure will not warn you at all.
2628
2629 AC_ARG_ENABLE([bootstrap],
2630 [AS_HELP_STRING([--enable-bootstrap],
2631                 [enable bootstrapping @<:@yes if native build@:>@])],,
2632 enable_bootstrap=default)
2633
2634 # Issue errors and warnings for invalid/strange bootstrap combinations.
2635 case "$configdirs" in
2636   *gcc*) have_compiler=yes ;;
2637   *) have_compiler=no ;;
2638 esac
2639
2640 case "$have_compiler:$host:$target:$enable_bootstrap" in
2641   *:*:*:no) ;;
2642
2643   # Default behavior.  Enable bootstrap if we have a compiler
2644   # and we are in a native configuration.
2645   yes:$build:$build:default)
2646     enable_bootstrap=yes ;;
2647
2648   *:*:*:default)
2649     enable_bootstrap=no ;;
2650
2651   # We have a compiler and we are in a native configuration, bootstrap is ok
2652   yes:$build:$build:yes)
2653     ;;
2654
2655   # Other configurations, but we have a compiler.  Assume the user knows
2656   # what he's doing.
2657   yes:*:*:yes)
2658     AC_MSG_WARN([trying to bootstrap a cross compiler])
2659     ;;
2660
2661   # No compiler: if they passed --enable-bootstrap explicitly, fail
2662   no:*:*:yes)
2663     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
2664
2665   # Fail if wrong command line
2666   *)
2667     AC_MSG_ERROR([invalid option for --enable-bootstrap])
2668     ;;
2669 esac
2670
2671 case ",$enable_languages,:$ENABLE_BUILD_WITH_CXX:$enable_bootstrap" in
2672   *,c++,*:yes:yes) ;;
2673   *:yes:yes)
2674     AC_MSG_ERROR([bootstrapping with --enable-build-with-cxx requires c++ in --enable-languages])
2675     ;;
2676 esac
2677
2678 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2679   yes:yes:*\ gold\ *:*,c++,*) ;;
2680   yes:yes:*\ gold\ *:*)
2681     AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2682     ;;
2683 esac
2684
2685 # Adjust the toplevel makefile according to whether bootstrap was selected.
2686 case $enable_bootstrap in
2687   yes)
2688     bootstrap_suffix=bootstrap
2689     BUILD_CONFIG=bootstrap-debug
2690     ;;
2691   no)
2692     bootstrap_suffix=no-bootstrap
2693     BUILD_CONFIG=
2694     ;;
2695 esac
2696
2697 AC_MSG_CHECKING(for default BUILD_CONFIG)
2698
2699 AC_ARG_WITH([build-config],
2700   [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2701                   [use config/NAME.mk build configuration])],
2702   [case $with_build_config in
2703    yes) with_build_config= ;;
2704    no) with_build_config= BUILD_CONFIG= ;;
2705    esac])
2706
2707 if test "x${with_build_config}" != x; then
2708   BUILD_CONFIG=$with_build_config
2709 else
2710   case $BUILD_CONFIG in
2711   bootstrap-debug)
2712     if echo "int f (void) { return 0; }" > conftest.c &&
2713        ${CC} -c conftest.c &&
2714        mv conftest.o conftest.o.g0 &&
2715        ${CC} -c -g conftest.c &&
2716        mv conftest.o conftest.o.g &&
2717        ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2718       :
2719     else
2720       BUILD_CONFIG=
2721     fi
2722     rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2723     ;;
2724   esac
2725 fi
2726 AC_MSG_RESULT($BUILD_CONFIG)
2727 AC_SUBST(BUILD_CONFIG)
2728
2729 extrasub_build=
2730 for module in ${build_configdirs} ; do
2731   if test -z "${no_recursion}" \
2732      && test -f ${build_subdir}/${module}/Makefile; then
2733     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2734     rm -f ${build_subdir}/${module}/Makefile
2735   fi
2736   extrasub_build="$extrasub_build
2737 /^@if build-$module\$/d
2738 /^@endif build-$module\$/d
2739 /^@if build-$module-$bootstrap_suffix\$/d
2740 /^@endif build-$module-$bootstrap_suffix\$/d"
2741 done
2742 extrasub_host=
2743 for module in ${configdirs} ; do
2744   if test -z "${no_recursion}"; then
2745     for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2746       if test -f ${file}; then
2747         echo 1>&2 "*** removing ${file} to force reconfigure"
2748         rm -f ${file}
2749       fi
2750     done
2751   fi
2752   extrasub_host="$extrasub_host
2753 /^@if $module\$/d
2754 /^@endif $module\$/d
2755 /^@if $module-$bootstrap_suffix\$/d
2756 /^@endif $module-$bootstrap_suffix\$/d"
2757 done
2758 extrasub_target=
2759 for module in ${target_configdirs} ; do
2760   if test -z "${no_recursion}" \
2761      && test -f ${target_subdir}/${module}/Makefile; then
2762     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2763     rm -f ${target_subdir}/${module}/Makefile
2764   fi
2765
2766   # We only bootstrap target libraries listed in bootstrap_target_libs.
2767   case $bootstrap_target_libs in
2768     *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2769     *) target_bootstrap_suffix=no-bootstrap ;;
2770   esac
2771
2772   extrasub_target="$extrasub_target
2773 /^@if target-$module\$/d
2774 /^@endif target-$module\$/d
2775 /^@if target-$module-$target_bootstrap_suffix\$/d
2776 /^@endif target-$module-$target_bootstrap_suffix\$/d"
2777 done
2778
2779 # Do the final fixup along with target modules.
2780 extrasub_target="$extrasub_target
2781 /^@if /,/^@endif /d"
2782
2783 # Create the serialization dependencies.  This uses a temporary file.
2784
2785 AC_ARG_ENABLE([serial-configure],
2786 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2787                 [force sequential configuration of
2788                  sub-packages for the host, target or build
2789                  machine, or all sub-packages])])
2790
2791 case ${enable_serial_configure} in
2792   yes)
2793     enable_serial_build_configure=yes
2794     enable_serial_host_configure=yes
2795     enable_serial_target_configure=yes
2796     ;;
2797 esac
2798
2799 # These force 'configure's to be done one at a time, to avoid problems
2800 # with contention over a shared config.cache.
2801 rm -f serdep.tmp
2802 echo '# serdep.tmp' > serdep.tmp
2803 olditem=
2804 test "x${enable_serial_build_configure}" = xyes &&
2805 for item in ${build_configdirs} ; do
2806   case ${olditem} in
2807     "") ;;
2808     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2809   esac
2810   olditem=${item}
2811 done
2812 olditem=
2813 test "x${enable_serial_host_configure}" = xyes &&
2814 for item in ${configdirs} ; do
2815   case ${olditem} in
2816     "") ;;
2817     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2818   esac
2819   olditem=${item}
2820 done
2821 olditem=
2822 test "x${enable_serial_target_configure}" = xyes &&
2823 for item in ${target_configdirs} ; do
2824   case ${olditem} in
2825     "") ;;
2826     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2827   esac
2828   olditem=${item}
2829 done
2830 serialization_dependencies=serdep.tmp
2831 AC_SUBST_FILE(serialization_dependencies)
2832
2833 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
2834 # target, nonopt, and variable assignments.  These are the ones we
2835 # might not want to pass down to subconfigures.  The exception being
2836 # --cache-file=/dev/null, which is used to turn off the use of cache
2837 # files altogether, and which should be passed on to subconfigures.
2838 # Also strip program-prefix, program-suffix, and program-transform-name,
2839 # so that we can pass down a consistent program-transform-name.
2840 baseargs=
2841 tbaseargs=
2842 keep_next=no
2843 skip_next=no
2844 eval "set -- $ac_configure_args"
2845 for ac_arg
2846 do
2847   if test X"$skip_next" = X"yes"; then
2848     skip_next=no
2849     continue
2850   fi
2851   if test X"$keep_next" = X"yes"; then
2852     case $ac_arg in
2853       *\'*)
2854         ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2855     esac
2856     baseargs="$baseargs '$ac_arg'"
2857     tbaseargs="$tbaseargs '$ac_arg'"
2858     keep_next=no
2859     continue
2860   fi
2861
2862   # Handle separated arguments.  Based on the logic generated by
2863   # autoconf 2.59.
2864   case $ac_arg in
2865     *=* | --config-cache | -C | -disable-* | --disable-* \
2866       | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2867       | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2868       | -with-* | --with-* | -without-* | --without-* | --x)
2869       separate_arg=no
2870       ;;
2871     -*)
2872       separate_arg=yes
2873       ;;
2874     *)
2875       separate_arg=no
2876       ;;
2877   esac
2878
2879   skip_targ=no
2880   case $ac_arg in
2881 changequote(,)
2882   --with-* | --without-*)
2883     libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2884
2885     case $libopt in
2886     *[-_]include)
2887       lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2888       ;;
2889     *[-_]lib)
2890       lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2891       ;;
2892     *)
2893       lib=$libopt
2894       ;;
2895     esac
2896 changequote([,])
2897
2898     case $lib in
2899     mpc | mpfr | gmp | ppl | cloog)
2900       # If we're processing --with-$lib, --with-$lib-include or
2901       # --with-$lib-lib, for one of the libs above, and target is
2902       # different from host, don't pass the current argument to any
2903       # target library's configure.
2904       if test x$is_cross_compiler = xyes; then
2905         skip_targ=yes
2906       fi
2907       ;;
2908     esac
2909     ;;
2910   esac
2911
2912   case "$ac_arg" in
2913     --cache-file=/dev/null | \
2914     -cache-file=/dev/null )
2915       # Handled here to avoid the test to skip args below.
2916       baseargs="$baseargs '$ac_arg'"
2917       tbaseargs="$tbaseargs '$ac_arg'"
2918       # Assert: $separate_arg should always be no.
2919       keep_next=$separate_arg
2920       ;;
2921     --no*)
2922       continue
2923       ;;
2924     --c* | \
2925     --sr* | \
2926     --ho* | \
2927     --bu* | \
2928     --t* | \
2929     --program-* | \
2930     -cache_file* | \
2931     -srcdir* | \
2932     -host* | \
2933     -build* | \
2934     -target* | \
2935     -program-prefix* | \
2936     -program-suffix* | \
2937     -program-transform-name* )
2938       skip_next=$separate_arg
2939       continue
2940       ;;
2941     -*)
2942       # An option.  Add it.
2943       case $ac_arg in
2944         *\'*)
2945           ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2946       esac
2947       baseargs="$baseargs '$ac_arg'"
2948       if test X"$skip_targ" = Xno; then
2949         tbaseargs="$tbaseargs '$ac_arg'"
2950       fi
2951       keep_next=$separate_arg
2952       ;;
2953     *)
2954       # Either a variable assignment, or a nonopt (triplet).  Don't
2955       # pass it down; let the Makefile handle this.
2956       continue
2957       ;;
2958   esac
2959 done
2960 # Remove the initial space we just introduced and, as these will be
2961 # expanded by make, quote '$'.
2962 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2963
2964 # Add in --program-transform-name, after --program-prefix and
2965 # --program-suffix have been applied to it.  Autoconf has already
2966 # doubled dollar signs and backslashes in program_transform_name; we want
2967 # the backslashes un-doubled, and then the entire thing wrapped in single
2968 # quotes, because this will be expanded first by make and then by the shell.
2969 # Also, because we want to override the logic in subdir configure scripts to
2970 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2971 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2972 ${program_transform_name}
2973 EOF_SED
2974 gcc_transform_name=`cat conftestsed.out`
2975 rm -f conftestsed.out
2976 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2977 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
2978 if test "$silent" = yes; then
2979   baseargs="$baseargs --silent"
2980   tbaseargs="$tbaseargs --silent"
2981 fi
2982 baseargs="$baseargs --disable-option-checking"
2983 tbaseargs="$tbaseargs --disable-option-checking"
2984
2985 # Record and document user additions to sub configure arguments.
2986 AC_ARG_VAR([build_configargs],
2987            [additional configure arguments for build directories])
2988 AC_ARG_VAR([host_configargs],
2989            [additional configure arguments for host directories])
2990 AC_ARG_VAR([target_configargs],
2991            [additional configure arguments for target directories])
2992
2993 # For the build-side libraries, we just need to pretend we're native,
2994 # and not use the same cache file.  Multilibs are neither needed nor
2995 # desired.
2996 build_configargs="$build_configargs --cache-file=../config.cache ${baseargs}"
2997
2998 # For host modules, accept cache file option, or specification as blank.
2999 case "${cache_file}" in
3000 "") # empty
3001   cache_file_option="" ;;
3002 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3003   cache_file_option="--cache-file=${cache_file}" ;;
3004 *) # relative path
3005   cache_file_option="--cache-file=../${cache_file}" ;;
3006 esac
3007
3008 # Host dirs don't like to share a cache file either, horribly enough.
3009 # This seems to be due to autoconf 2.5x stupidity.
3010 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3011
3012 target_configargs="$target_configargs ${tbaseargs}"
3013
3014 # Passing a --with-cross-host argument lets the target libraries know
3015 # whether they are being built with a cross-compiler or being built
3016 # native.  However, it would be better to use other mechanisms to make the
3017 # sorts of decisions they want to make on this basis.  Please consider
3018 # this option to be deprecated.  FIXME.
3019 if test x${is_cross_compiler} = xyes ; then
3020   target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3021 fi
3022
3023 # Default to --enable-multilib.
3024 if test x${enable_multilib} = x ; then
3025   target_configargs="--enable-multilib ${target_configargs}"
3026 fi
3027
3028 # Pass --with-newlib if appropriate.  Note that target_configdirs has
3029 # changed from the earlier setting of with_newlib.
3030 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3031   target_configargs="--with-newlib ${target_configargs}"
3032 fi
3033
3034 # Different target subdirs use different values of certain variables
3035 # (notably CXX).  Worse, multilibs use *lots* of different values.
3036 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3037 # it doesn't automatically accept command-line overrides of them.
3038 # This means it's not safe for target subdirs to share a cache file,
3039 # which is disgusting, but there you have it.  Hopefully this can be
3040 # fixed in future.  It's still worthwhile to use a cache file for each
3041 # directory.  I think.
3042
3043 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3044 # We need to pass --target, as newer autoconf's requires consistency
3045 # for target_alias and gcc doesn't manage it consistently.
3046 target_configargs="--cache-file=./config.cache ${target_configargs}"
3047
3048 FLAGS_FOR_TARGET=
3049 case " $target_configdirs " in
3050  *" newlib "*)
3051   case " $target_configargs " in
3052   *" --with-newlib "*)
3053    case "$target" in
3054     *-cygwin*)
3055       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 $$s/winsup/w32api/include'
3056       ;;
3057    esac
3058
3059    # If we're not building GCC, don't discard standard headers.
3060    if test -d ${srcdir}/gcc; then
3061      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3062
3063      if test "${build}" != "${host}"; then
3064        # On Canadian crosses, CC_FOR_TARGET will have already been set
3065        # by `configure', so we won't have an opportunity to add -Bgcc/
3066        # to it.  This is right: we don't want to search that directory
3067        # for binaries, but we want the header files in there, so add
3068        # them explicitly.
3069        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3070
3071        # Someone might think of using the pre-installed headers on
3072        # Canadian crosses, in case the installed compiler is not fully
3073        # compatible with the compiler being built.  In this case, it
3074        # would be better to flag an error than risking having
3075        # incompatible object files being constructed.  We can't
3076        # guarantee that an error will be flagged, but let's hope the
3077        # compiler will do it, when presented with incompatible header
3078        # files.
3079      fi
3080    fi
3081
3082    case "${target}-${is_cross_compiler}" in
3083    i[[3456789]]86-*-linux*-no)
3084       # Here host == target, so we don't need to build gcc,
3085       # so we don't want to discard standard headers.
3086       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3087       ;;
3088    *)
3089       # If we're building newlib, use its generic headers last, but search
3090       # for any libc-related directories first (so make it the last -B
3091       # switch).
3092       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3093
3094       # If we're building libgloss, find the startup file, simulator library
3095       # and linker script.
3096       case " $target_configdirs " in
3097         *" libgloss "*)
3098         # Look for startup file, simulator library and maybe linker script.
3099         FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3100         # Look for libnosys.a in case the target needs it.
3101         FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3102         # Most targets have the linker script in the source directory.
3103         FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3104         ;;
3105       esac
3106       ;;
3107    esac
3108    ;;
3109   esac
3110   ;;
3111 esac
3112
3113 case "$target" in
3114   x86_64-*mingw* | *-w64-mingw*)
3115   # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3116   # however, use a symlink named 'mingw' in ${prefix} .
3117     FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3118     ;;
3119   *-mingw*)
3120   # MinGW can't be handled as Cygwin above since it does not use newlib.
3121     FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3122     ;;
3123 esac
3124
3125 # Allow the user to override the flags for
3126 # our build compiler if desired.
3127 if test x"${build}" = x"${host}" ; then
3128   CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3129   CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3130   LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3131 fi
3132
3133 # On Canadian crosses, we'll be searching the right directories for
3134 # the previously-installed cross compiler, so don't bother to add
3135 # flags for directories within the install tree of the compiler
3136 # being built; programs in there won't even run.
3137 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3138   # Search for pre-installed headers if nothing else fits.
3139   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3140 fi
3141
3142 if test "x${use_gnu_ld}" = x &&
3143    echo " ${configdirs} " | grep " ld " > /dev/null ; then
3144   # Arrange for us to find uninstalled linker scripts.
3145   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3146 fi
3147
3148 # Search for other target-specific linker scripts and such.
3149 case "${target}" in
3150   mep*)
3151     FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3152     ;;
3153 esac
3154
3155 # Makefile fragments.
3156 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3157 do
3158   eval fragval=\$$frag
3159   if test $fragval != /dev/null; then
3160     eval $frag=${srcdir}/$fragval
3161   fi
3162 done
3163 AC_SUBST_FILE(host_makefile_frag)
3164 AC_SUBST_FILE(target_makefile_frag)
3165 AC_SUBST_FILE(alphaieee_frag)
3166 AC_SUBST_FILE(ospace_frag)
3167
3168 # Miscellanea: directories, flags, etc.
3169 AC_SUBST(RPATH_ENVVAR)
3170 AC_SUBST(GCC_SHLIB_SUBDIR)
3171 AC_SUBST(tooldir)
3172 AC_SUBST(build_tooldir)
3173 AC_SUBST(CONFIGURE_GDB_TK)
3174 AC_SUBST(GDB_TK)
3175 AC_SUBST(INSTALL_GDB_TK)
3176
3177 # Build module lists & subconfigure args.
3178 AC_SUBST(build_configargs)
3179 AC_SUBST(build_configdirs)
3180
3181 # Host module lists & subconfigure args.
3182 AC_SUBST(host_configargs)
3183 AC_SUBST(configdirs)
3184 AC_SUBST(target_configdirs)
3185
3186 # Target module lists & subconfigure args.
3187 AC_SUBST(target_configargs)
3188
3189
3190 # Build tools.
3191 AC_SUBST(AR_FOR_BUILD)
3192 AC_SUBST(AS_FOR_BUILD)
3193 AC_SUBST(CC_FOR_BUILD)
3194 AC_SUBST(CFLAGS_FOR_BUILD)
3195 AC_SUBST(CXXFLAGS_FOR_BUILD)
3196 AC_SUBST(CXX_FOR_BUILD)
3197 AC_SUBST(DLLTOOL_FOR_BUILD)
3198 AC_SUBST(GCJ_FOR_BUILD)
3199 AC_SUBST(GFORTRAN_FOR_BUILD)
3200 AC_SUBST(GOC_FOR_BUILD)
3201 AC_SUBST(LDFLAGS_FOR_BUILD)
3202 AC_SUBST(LD_FOR_BUILD)
3203 AC_SUBST(NM_FOR_BUILD)
3204 AC_SUBST(RANLIB_FOR_BUILD)
3205 AC_SUBST(WINDMC_FOR_BUILD)
3206 AC_SUBST(WINDRES_FOR_BUILD)
3207 AC_SUBST(config_shell)
3208
3209 # Generate default definitions for YACC, M4, LEX and other programs that run
3210 # on the build machine.  These are used if the Makefile can't locate these
3211 # programs in objdir.
3212 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3213
3214 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3215 case " $build_configdirs " in
3216   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3217   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
3218 esac
3219
3220 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3221 case " $build_configdirs " in
3222   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3223 esac
3224
3225 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3226 case " $build_configdirs " in
3227   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3228 esac
3229
3230 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3231 case " $build_configdirs " in
3232   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3233   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3234 esac
3235
3236 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3237 case " $build_configdirs " in
3238   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3239 esac
3240
3241 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3242 case " $build_configdirs " in
3243   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3244   *)
3245 changequote(,)
3246     # For an installed makeinfo, we require it to be from texinfo 4.7 or
3247     # higher, else we use the "missing" dummy.
3248     if ${MAKEINFO} --version \
3249        | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3250       :
3251     else
3252       MAKEINFO="$MISSING makeinfo"
3253     fi
3254     ;;
3255 changequote([,])
3256 esac
3257
3258 # FIXME: expect and dejagnu may become build tools?
3259
3260 AC_CHECK_PROGS(EXPECT, expect, expect)
3261 case " $configdirs " in
3262   *" expect "*)
3263     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3264     ;;
3265 esac
3266
3267 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3268 case " $configdirs " in
3269   *" dejagnu "*)
3270     test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3271     ;;
3272 esac
3273
3274
3275 # Host tools.
3276 NCN_STRICT_CHECK_TOOLS(AR, ar)
3277 NCN_STRICT_CHECK_TOOLS(AS, as)
3278 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3279 NCN_STRICT_CHECK_TOOLS(LD, ld)
3280 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3281 NCN_STRICT_CHECK_TOOLS(NM, nm)
3282 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3283 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3284 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3285 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3286 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3287 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3288 AC_SUBST(CC)
3289 AC_SUBST(CXX)
3290 AC_SUBST(CFLAGS)
3291 AC_SUBST(CXXFLAGS)
3292
3293 # Target tools.
3294 AC_ARG_WITH([build-time-tools],
3295   [AS_HELP_STRING([--with-build-time-tools=PATH],
3296                   [use given path to find target tools during the build])],
3297   [case x"$withval" in
3298      x/*) ;;
3299      *)
3300        with_build_time_tools=
3301        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3302        ;;
3303    esac],
3304   [with_build_time_tools=])
3305
3306 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3307 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3308 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3309 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
3310 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3311 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3312
3313 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3314 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3315 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3316 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3317 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3318 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3319 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3320 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3321 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3322 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3323 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3324
3325 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3326
3327 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3328 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3329 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3330 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3331 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3332                 [gcc/g++ -B$$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],
3333                 c++)
3334 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3335                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
3336                 c++)
3337 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3338 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3339 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
3340                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
3341 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3342                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3343 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3344                 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3345 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3346 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3347 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3348 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3349 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3350 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3351 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3352 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3353
3354 AC_SUBST(FLAGS_FOR_TARGET)
3355 AC_SUBST(RAW_CXX_FOR_TARGET)
3356
3357 # Certain tools may need extra flags.
3358 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3359 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3360 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3361
3362 # When building target libraries, except in a Canadian cross, we use
3363 # the same toolchain as the compiler we just built.
3364 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3365 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3366 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3367 if test $host = $build; then
3368   case " $configdirs " in
3369     *" gcc "*)
3370       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3371       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3372       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3373       ;;
3374   esac
3375 fi
3376
3377 AC_SUBST(COMPILER_AS_FOR_TARGET)
3378 AC_SUBST(COMPILER_LD_FOR_TARGET)
3379 AC_SUBST(COMPILER_NM_FOR_TARGET)
3380
3381 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3382 AC_ARG_ENABLE(maintainer-mode,
3383 [AS_HELP_STRING([--enable-maintainer-mode],
3384                 [enable make rules and dependencies not useful
3385                  (and sometimes confusing) to the casual installer])],
3386       USE_MAINTAINER_MODE=$enableval,
3387       USE_MAINTAINER_MODE=no)
3388 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3389 AC_SUBST(MAINTAINER_MODE_TRUE)
3390 AC_SUBST(MAINTAINER_MODE_FALSE)
3391 if test "$USE_MAINTAINER_MODE" = yes; then
3392   MAINTAINER_MODE_TRUE=
3393   MAINTAINER_MODE_FALSE='#'
3394 else
3395   MAINTAINER_MODE_TRUE='#'
3396   MAINTAINER_MODE_FALSE=
3397 fi
3398 MAINT=$MAINTAINER_MODE_TRUE
3399 AC_SUBST(MAINT)dnl
3400
3401 # ---------------------
3402 # GCC bootstrap support
3403 # ---------------------
3404
3405 # Stage specific cflags for build.
3406 stage1_cflags="-g"
3407 case $build in
3408   vax-*-*)
3409     case ${GCC} in
3410       yes) stage1_cflags="-g -Wa,-J" ;;
3411       *) stage1_cflags="-g -J" ;;
3412     esac ;;
3413 esac
3414
3415 # This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
3416 if test "$GCC" = yes -a "$ENABLE_BUILD_WITH_CXX" != yes; then
3417   saved_CFLAGS="$CFLAGS"
3418
3419   # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
3420   CFLAGS="$CFLAGS -fkeep-inline-functions"
3421   AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
3422   AC_TRY_COMPILE([
3423 #if (__GNUC__ < 3) \
3424     || (__GNUC__ == 3 && (__GNUC_MINOR__ < 3 \
3425                           || (__GNUC_MINOR__ == 3 && __GNUC_PATCHLEVEL__ < 1)))
3426 #error http://gcc.gnu.org/PR29382
3427 #endif
3428     ],,
3429     [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
3430     [AC_MSG_RESULT([no])])
3431
3432   CFLAGS="$saved_CFLAGS"
3433 fi
3434
3435 AC_SUBST(stage1_cflags)
3436
3437 # Enable --enable-checking in stage1 of the compiler.
3438 AC_ARG_ENABLE(stage1-checking,
3439 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3440                 [choose additional checking for stage1 of the compiler])],
3441 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3442 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3443   stage1_checking=--enable-checking=yes,types
3444 else
3445   stage1_checking=--enable-checking=$enable_checking,types
3446 fi])
3447 AC_SUBST(stage1_checking)
3448
3449 # Enable -Werror in bootstrap stage2 and later.
3450 AC_ARG_ENABLE(werror,
3451 [AS_HELP_STRING([--enable-werror],
3452                 [enable -Werror in bootstrap stage2 and later])], [],
3453 [if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3454   enable_werror=yes
3455 else
3456   enable_werror=no
3457 fi])
3458 case ${enable_werror} in
3459   yes) stage2_werror_flag="--enable-werror-always" ;;
3460   *) stage2_werror_flag="" ;;
3461 esac
3462 AC_SUBST(stage2_werror_flag)
3463
3464 # Specify what files to not compare during bootstrap.
3465
3466 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3467 case "$target" in
3468   hppa*64*-*-hpux*) ;;
3469   hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
3470 esac
3471 case " $configdirs " in
3472 *" ppl "*) compare_exclusions="$compare_exclusions | ppl/src/ppl-config.o" ;;
3473 esac
3474 AC_SUBST(compare_exclusions)
3475
3476 AC_CONFIG_FILES([Makefile],
3477   [sed "$extrasub_build" Makefile |
3478    sed "$extrasub_host" |
3479    sed "$extrasub_target" > mf$$
3480    mv -f mf$$ Makefile],
3481   [extrasub_build="$extrasub_build"
3482    extrasub_host="$extrasub_host"
3483    extrasub_target="$extrasub_target"])
3484 AC_OUTPUT