configure.in

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   2 #   1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
   3 #
   4 # This file is free software; you can redistribute it and/or modify it
   5 # under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful, but
  10 # WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17
  18 ##############################################################################
  19 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
  20
  21 sinclude(config/acx.m4)
  22
  23 AC_INIT(move-if-change)
  24 AC_PREREQ(2.13)
  25 AC_CANONICAL_SYSTEM
  26 AC_ARG_PROGRAM
  27
  28 # Get 'install' or 'install-sh' and its variants.
  29 AC_PROG_INSTALL
  30 ACX_PROG_LN
  31 AC_PROG_LN_S
  32
  33 ### we might need to use some other shell than /bin/sh for running subshells
  34 ### If we are on Windows, search for the shell.  This will permit people
  35 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  36 ### without also having to set CONFIG_SHELL.  This code will work when
  37 ### using bash, which sets OSTYPE.
  38 case "${OSTYPE}" in
  39 *win32*)
  40   if test x${CONFIG_SHELL} = x ; then
  41     if test ! -f /bin/sh ; then
  42       if test x${SHELL} != x && test -f ${SHELL} ; then
  43         CONFIG_SHELL=${SHELL}
  44         export CONFIG_SHELL
  45       else
  46         for prog in sh sh.exe bash bash.exe; do
  47           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
  48           for dir in $PATH; do
  49             test -z "$dir" && dir=.
  50             if test -f $dir/$prog; then
  51               CONFIG_SHELL=$dir/$prog
  52               export CONFIG_SHELL
  53               break
  54             fi
  55           done
  56           IFS="$save_ifs"
  57           test -n "${CONFIG_SHELL}" && break
  58         done
  59       fi
  60     fi
  61   fi
  62   ;;
  63 esac
  64
  65 config_shell=${CONFIG_SHELL-/bin/sh}
  66
  67 progname=$0
  68 # if PWD already has a value, it is probably wrong.
  69 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  70
  71 # Export original configure arguments for use by sub-configures.  These
  72 # will be expanded by make, so quote '$'.
  73 tmp="$progname $@"
  74 sed -e 's,\$,$$,g' <<EOF_SED > conftestsed.out
  75 $tmp
  76 EOF_SED
  77 TOPLEVEL_CONFIGURE_ARGUMENTS=`cat conftestsed.out`
  78 rm -f conftestsed.out
  79 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
  80
  81 moveifchange=${srcdir}/move-if-change
  82
  83 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
  84
  85 # We pass INSTALL explicitly to sub-makes.  Make sure that it is not
  86 # a relative path.
  87 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
  88   INSTALL="${srcpwd}/install-sh -c"
  89 fi
  90
  91 # Set srcdir to "." if that's what it is.
  92 # This is important for multilib support.
  93 pwd=`${PWDCMD-pwd}`
  94 if test "${pwd}" = "${srcpwd}" ; then
  95   srcdir=.
  96 fi
  97
  98 topsrcdir=$srcpwd
  99
 100 extra_host_args=
 101 # Define the trigger file to make sure configure will re-run whenever
 102 # the gcc version number changes.
 103 if test "${with_gcc_version_trigger+set}" = set ; then
 104   gcc_version_trigger="$with_gcc_version_trigger"
 105   gcc_version=`grep version_string ${with_gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
 106 else
 107   # If gcc's sources are available, define the trigger file.
 108   if test -f ${topsrcdir}/gcc/version.c ; then
 109     gcc_version_trigger=${topsrcdir}/gcc/version.c
 110     gcc_version=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
 111     case "$ac_configure_args" in
 112       *--with-gcc-version-trigger=$gcc_version_trigger* )
 113         ;;
 114       * )
 115         # Add to all subconfigure arguments: build, host, and target.
 116         ac_configure_args="$ac_configure_args --with-gcc-version-trigger=$gcc_version_trigger"
 117         ;;
 118     esac
 119   fi
 120 fi
 121
 122 ### To add a new directory to the tree, first choose whether it is a target
 123 ### or a host dependent tool.  Then put it into the appropriate list
 124 ### (library or tools, host or target), doing a dependency sort.
 125
 126 # Subdirs will be configured in the order listed in build_configdirs,
 127 # configdirs, or target_configdirs; see the serialization section below.
 128
 129 # Dependency sorting is only needed when *configuration* must be done in
 130 # a particular order.  In all cases a dependency should be specified in
 131 # the Makefile, whether or not it's implicitly specified here.
 132
 133 # Double entries in build_configdirs, configdirs, or target_configdirs may
 134 # cause circular dependencies and break everything horribly.
 135
 136 # these library is used by various programs built for the build
 137 # environment
 138 #
 139 build_libs="build-libiberty"
 140
 141 # these tools are built for the build environment
 142 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
 143
 144 # these libraries are used by various programs built for the host environment
 145 #
 146 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp"
 147
 148 # these tools are built for the host environment
 149 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 150 # know that we are building the simulator.
 151 # binutils, gas and ld appear in that order because it makes sense to run
 152 # "make check" in that particular order.
 153 host_tools="texinfo byacc flex bison binutils gas ld fixincludes gcc 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"
 154
 155 # libgcj represents the runtime libraries only used by gcj.
 156 libgcj="target-libffi \
 157         target-boehm-gc \
 158         target-zlib \
 159         target-qthreads \
 160         target-libjava"
 161
 162 # these libraries are built for the target environment, and are built after
 163 # the host libraries and the host tools (which may be a cross compiler)
 164 #
 165 target_libraries="target-libiberty \
 166                 target-libgloss \
 167                 target-newlib \
 168                 target-libstdc++-v3 \
 169                 target-libmudflap \
 170                 target-libgfortran \
 171                 ${libgcj} \
 172                 target-libobjc \
 173                 target-libada"
 174
 175 # these tools are built using the target libraries, and are intended to
 176 # run only in the target environment
 177 #
 178 # note: any program that *uses* libraries that are in the "target_libraries"
 179 # list belongs in this list.  those programs are also very likely
 180 # candidates for the "native_only" list which follows
 181 #
 182 target_tools="target-examples target-groff target-gperf target-rda"
 183
 184 ################################################################################
 185
 186 ## All tools belong in one of the four categories, and are assigned above
 187 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 188 ## is important because configure will choke if they ever get through.
 189 ## ${configdirs} is directories we build using the host tools.
 190 ## ${target_configdirs} is directories we build using the target tools.
 191 configdirs=`echo ${host_libs} ${host_tools}`
 192 target_configdirs=`echo ${target_libraries} ${target_tools}`
 193 build_configdirs=`echo ${build_libs} ${build_tools}`
 194
 195 ################################################################################
 196
 197 srcname="gnu development package"
 198
 199 # This gets set non-empty for some net releases of packages.
 200 appdirs=""
 201
 202 # Define is_cross_compiler to save on calls to 'test'.
 203 is_cross_compiler=
 204 if test x"${host}" = x"${target}" ; then
 205   is_cross_compiler=no
 206 else
 207   is_cross_compiler=yes
 208 fi
 209
 210 # Find the build and target subdir names.
 211 GCC_TOPLEV_SUBDIRS
 212
 213 # Skipdirs are removed silently.
 214 skipdirs=
 215 # Noconfigdirs are removed loudly.
 216 noconfigdirs=""
 217
 218 use_gnu_ld=
 219 # Make sure we don't let GNU ld be added if we didn't want it.
 220 if test x$with_gnu_ld = xno ; then
 221   use_gnu_ld=no
 222   noconfigdirs="$noconfigdirs ld"
 223 fi
 224
 225 use_gnu_as=
 226 # Make sure we don't let GNU as be added if we didn't want it.
 227 if test x$with_gnu_as = xno ; then
 228   use_gnu_as=no
 229   noconfigdirs="$noconfigdirs gas"
 230 fi
 231
 232 # some tools are so dependent upon X11 that if we're not building with X,
 233 # it's not even worth trying to configure, much less build, that tool.
 234
 235 case ${with_x} in
 236   yes | "") ;; # the default value for this tree is that X11 is available
 237   no)
 238     skipdirs="${skipdirs} tk itcl libgui"
 239     # We won't be able to build gdbtk without X.
 240     enable_gdbtk=no
 241     ;;
 242   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 243 esac
 244
 245 # Some tools are only suitable for building in a "native" situation.
 246 # Remove these if host!=target.
 247 native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff gprof target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
 248
 249 # Similarly, some are only suitable for cross toolchains.
 250 # Remove these if host=target.
 251 cross_only="target-libgloss target-newlib target-opcodes"
 252
 253 case $is_cross_compiler in
 254   no) skipdirs="${skipdirs} ${cross_only}" ;;
 255   yes) skipdirs="${skipdirs} ${native_only}" ;;
 256 esac
 257
 258 # If both --with-headers and --with-libs are specified, default to
 259 # --without-newlib.
 260 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 261    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 262   if test x"${with_newlib}" = x ; then
 263     with_newlib=no
 264   fi
 265 fi
 266
 267 # Recognize --with-newlib/--without-newlib.
 268 case ${with_newlib} in
 269   no) skipdirs="${skipdirs} target-newlib" ;;
 270   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 271 esac
 272
 273 # Configure extra directories which are host specific
 274
 275 case "${host}" in
 276   *-cygwin*)
 277     configdirs="$configdirs libtermcap" ;;
 278 esac
 279
 280 # Remove more programs from consideration, based on the host or
 281 # target this usually means that a port of the program doesn't
 282 # exist yet.
 283
 284 case "${host}" in
 285   hppa*64*-*-*)
 286     noconfigdirs="$noconfigdirs byacc"
 287     ;;
 288   i[[3456789]]86-*-vsta)
 289     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 290     ;;
 291   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 292     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 293     ;;
 294   i[[3456789]]86-*-mingw32*)
 295     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 296     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 297     ;;
 298   i[[3456789]]86-*-beos*)
 299     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 300     ;;
 301   *-*-cygwin*)
 302     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 303     ;;
 304   *-*-netbsd*)
 305     noconfigdirs="$noconfigdirs rcs"
 306     ;;
 307   ppc*-*-pe)
 308     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 309     ;;
 310   powerpc-*-beos*)
 311     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 312     ;;
 313   *-*-darwin*)
 314     noconfigdirs="$noconfigdirs tk itcl libgui"
 315     ;;
 316 esac
 317
 318
 319 AC_ARG_ENABLE(libada,
 320 [  --enable-libada        Builds libada directory],
 321 ENABLE_LIBADA=$enableval,
 322 ENABLE_LIBADA=yes)
 323 if test "${ENABLE_LIBADA}" != "yes" ; then
 324   noconfigdirs="$noconfigdirs target-libada"
 325 fi
 326
 327 # Save it here so that, even in case of --enable-libgcj, if the Java
 328 # front-end isn't enabled, we still get libgcj disabled.
 329 libgcj_saved=$libgcj
 330 case $enable_libgcj in
 331 yes)
 332   # If we reset it here, it won't get added to noconfigdirs in the
 333   # target-specific build rules, so it will be forcibly enabled
 334   # (unless the Java language itself isn't enabled).
 335   libgcj=
 336   ;;
 337 no)
 338   # Make sure we get it printed in the list of not supported target libs.
 339   noconfigdirs="$noconfigdirs ${libgcj}"
 340   ;;
 341 esac
 342
 343
 344 # Allow --disable-libmudflap to exclude target-libmudflap
 345 case $enable_libmudflap in
 346 yes)
 347     ;;
 348 no)
 349     noconfigdirs="$noconfigdirs target-libmudflap"
 350     ;;
 351 "")
 352     case "${target}" in
 353     *-*-linux*-gnu | *-*-gnu* | *-*-k*bsd*-gnu)
 354         # Enable libmudflap by default in GNU and friends.
 355         ;;
 356     *-*-freebsd*)
 357         # Enable libmudflap by default in FreeBSD.
 358         ;;
 359     *)
 360         # Disable it by default everywhere else.
 361         noconfigdirs="$noconfigdirs target-libmudflap"
 362         ;;
 363     esac
 364 esac
 365
 366
 367 case "${target}" in
 368   *-*-chorusos)
 369     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 370     ;;
 371   powerpc-*-darwin*)
 372     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 373     ;;
 374   *-*-darwin*)
 375     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 376     noconfigdirs="$noconfigdirs ${libgcj}"
 377     ;;
 378   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 379     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 380     ;;
 381   *-*-freebsd*)
 382     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 383     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 384         && test -f /usr/local/include/gmp.h; then
 385       with_gmp=/usr/local
 386     fi
 387
 388     # Skip some stuff that's unsupported on some FreeBSD configurations.
 389     case "${target}" in
 390       i*86-*-*) ;;
 391       alpha*-*-*) ;;
 392       *)
 393         noconfigdirs="$noconfigdirs ${libgcj}"
 394         ;;
 395     esac
 396     ;;
 397   *-*-kaos*)
 398     # Remove unsupported stuff on all kaOS configurations.
 399     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 400     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 401     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 402     noconfigdirs="$noconfigdirs target-libgloss"
 403     ;;
 404   *-*-netbsd*)
 405     # Skip some stuff on all NetBSD configurations.
 406     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 407
 408     # Skip some stuff that's unsupported on some NetBSD configurations.
 409     case "${target}" in
 410       i*86-*-netbsdelf*) ;;
 411       arm*-*-netbsdelf*) ;;
 412       *)
 413         noconfigdirs="$noconfigdirs ${libgcj}"
 414         ;;
 415     esac
 416     ;;
 417   *-*-netware*)
 418     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 419     ;;
 420   *-*-rtems*)
 421     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 422     ;;
 423   *-*-uclinux*)
 424     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 425     ;;
 426   *-*-vxworks*)
 427     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj}"
 428     ;;
 429   alpha*-dec-osf*)
 430     # ld works, but does not support shared libraries.
 431     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 432     # gas doesn't generate exception information.
 433     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 434     ;;
 435   alpha*-*-*vms*)
 436     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 437     ;;
 438   alpha*-*-linux*)
 439     # newlib is not 64 bit ready
 440     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 441     ;;
 442   alpha*-*-*)
 443     # newlib is not 64 bit ready
 444     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 445     ;;
 446   am33_2.0-*-linux*)
 447     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 448     ;;
 449   sh-*-linux*)
 450     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 451     ;;
 452   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 453     noconfigdirs="$noconfigdirs ${libgcj}"
 454     noconfigdirs="$noconfigdirs target-examples"
 455     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 456     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 457     noconfigdirs="$noconfigdirs expect dejagnu"
 458     # the C++ libraries don't build on top of CE's C libraries
 459     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 460     noconfigdirs="$noconfigdirs target-newlib"
 461     case "${host}" in
 462       *-*-cygwin*) ;; # keep gdb and readline
 463       *) noconfigdirs="$noconfigdirs gdb readline"
 464          ;;
 465     esac
 466     ;;
 467   arc-*-*)
 468     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 469     ;;
 470   arm-semi-aof )
 471     ;;
 472   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 473     noconfigdirs="$noconfigdirs ${libgcj}"
 474     ;;
 475   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 476     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 477     ;;
 478   arm*-*-symbianelf*)
 479     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 480     ;;
 481   arm-*-pe*)
 482     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 483     ;;
 484   thumb-*-coff)
 485     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 486     ;;
 487   thumb-*-elf)
 488     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 489     ;;
 490   thumb-*-pe)
 491     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 492     ;;
 493   arm-*-riscix*)
 494     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 495     ;;
 496   avr-*-*)
 497     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 498     ;;
 499   c4x-*-* | tic4x-*-*)
 500     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 501     ;;
 502   c54x*-*-* | tic54x-*-*)
 503     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 504     ;;
 505   cris-*-*)
 506     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 507     ;;
 508   crx-*-*)
 509     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 510     ;;
 511   d10v-*-*)
 512     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 513     ;;
 514   d30v-*-*)
 515     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 516     ;;
 517   fr30-*-elf*)
 518     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 519     ;;
 520   frv-*-*)
 521     noconfigdirs="$noconfigdirs ${libgcj}"
 522     ;;
 523   h8300*-*-*)
 524     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 525     ;;
 526   h8500-*-*)
 527     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 528     ;;
 529   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 530     ;;
 531   hppa*64*-*-linux* | parisc*64*-*-linux*)
 532     # In this case, it's because the hppa64-linux target is for
 533     # the kernel only at this point and has no libc, and thus no
 534     # headers, crt*.o, etc., all of which are needed by these.
 535     noconfigdirs="$noconfigdirs target-zlib"
 536     ;;
 537   hppa*-*-*elf* | \
 538   parisc*-*-linux* | hppa*-*-linux* | \
 539   hppa*-*-lites* | \
 540   hppa*-*-openbsd* | \
 541   hppa*64*-*-*)
 542     noconfigdirs="$noconfigdirs ${libgcj}"
 543     # Do configure ld/binutils/gas for this case.
 544     ;;
 545   hppa*-*-*)
 546     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 547     # build on HP-UX 10.20.
 548     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 549     ;;
 550   i960-*-*)
 551     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 552     ;;
 553   ia64*-*-elf*)
 554     # No gdb support yet.
 555     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 556     ;;
 557   ia64*-**-hpux*)
 558     # No gdb or ld support yet.
 559     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 560     ;;
 561   i370-*-opened*)
 562     ;;
 563   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 564     noconfigdirs="$noconfigdirs ${libgcj}"
 565     ;;
 566   i[[3456789]]86-*-linux*)
 567     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 568     # not build java stuff by default.
 569     case "${target}" in
 570       *-*-*libc1*)
 571         noconfigdirs="$noconfigdirs ${libgcj}";;
 572     esac
 573
 574     # This section makes it possible to build newlib natively on linux.
 575     # If we are using a cross compiler then don't configure newlib.
 576     if test x${is_cross_compiler} != xno ; then
 577       noconfigdirs="$noconfigdirs target-newlib"
 578     fi
 579     noconfigdirs="$noconfigdirs target-libgloss"
 580     # If we are not using a cross compiler, do configure newlib.
 581     # Note however, that newlib will only be configured in this situation
 582     # if the --with-newlib option has been given, because otherwise
 583     # 'target-newlib' will appear in skipdirs.
 584     ;;
 585   i[[3456789]]86-*-mingw32*)
 586     target_configdirs="$target_configdirs target-mingw"
 587     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 588
 589     # Can't build gdb for mingw32 if not native.
 590     case "${host}" in
 591       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 592       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 593          ;;
 594     esac
 595     ;;
 596   *-*-cygwin*)
 597     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 598     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 599     # always build newlib if winsup directory is present.
 600     if test -d "$srcdir/winsup"; then
 601       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 602     elif test -d "$srcdir/newlib"; then
 603       echo "Warning: winsup is missing so newlib can't be built."
 604     fi
 605
 606     # Can't build gdb for Cygwin if not native.
 607     case "${host}" in
 608       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 609       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 610          ;;
 611     esac
 612     ;;
 613   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 614   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 615     ;;
 616   i[[3456789]]86-*-pe)
 617     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 618     ;;
 619   i[[3456789]]86-*-sco3.2v5*)
 620     # The linker does not yet know about weak symbols in COFF,
 621     # and is not configured to handle mixed ELF and COFF.
 622     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 623     ;;
 624   i[[3456789]]86-*-sco*)
 625     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 626     ;;
 627   i[[3456789]]86-*-solaris2*)
 628     noconfigdirs="$noconfigdirs target-libgloss"
 629     ;;
 630   i[[3456789]]86-*-sysv4*)
 631     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 632     ;;
 633   i[[3456789]]86-*-beos*)
 634     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 635     ;;
 636   m32r-*-*)
 637     noconfigdirs="$noconfigdirs ${libgcj}"
 638     ;;
 639   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 640     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 641     ;;
 642   m68k-*-elf*)
 643     noconfigdirs="$noconfigdirs ${libgcj}"
 644     ;;
 645   m68k-*-coff*)
 646     noconfigdirs="$noconfigdirs ${libgcj}"
 647     ;;
 648   mcore-*-pe*)
 649   # The EPOC C++ environment does not support exceptions or rtti,
 650   # and so building libstdc++-v3 tends not to always work.
 651     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 652     ;;
 653   mmix-*-*)
 654     noconfigdirs="$noconfigdirs ${libgcj} gdb libgloss target-libgfortran"
 655     ;;
 656   mn10200-*-*)
 657     noconfigdirs="$noconfigdirs ${libgcj}"
 658     ;;
 659   mn10300-*-*)
 660     noconfigdirs="$noconfigdirs ${libgcj}"
 661     ;;
 662   powerpc-*-aix*)
 663     # copied from rs6000-*-* entry
 664     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 665     ;;
 666   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 667     target_configdirs="$target_configdirs target-winsup"
 668     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 669     # always build newlib.
 670     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 671     ;;
 672     # This is temporary until we can link against shared libraries
 673   powerpcle-*-solaris*)
 674     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 675     ;;
 676   powerpc-*-beos*)
 677     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 678     ;;
 679   powerpc-*-eabi)
 680     noconfigdirs="$noconfigdirs ${libgcj}"
 681     ;;
 682   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 683     ;;
 684   rs6000-*-lynxos*)
 685     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 686     ;;
 687   rs6000-*-aix*)
 688     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 689     ;;
 690   rs6000-*-*)
 691     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 692     ;;
 693   m68k-apollo-*)
 694     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 695     ;;
 696   mips*-*-irix5*)
 697     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 698     ;;
 699   mips*-*-irix6*)
 700     # Linking libjava exceeds command-line length limits on at least
 701     # IRIX 6.2, but not on IRIX 6.5.
 702     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 703     # <oldham@codesourcery.com>
 704     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 705     ;;
 706   mips*-dec-bsd*)
 707     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 708     ;;
 709   mips*-*-bsd*)
 710     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 711     ;;
 712   mipstx39-*-*)
 713     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 714     ;;
 715   mips64*-*-linux*)
 716     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 717     ;;
 718   mips*-*-linux*)
 719     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 720     ;;
 721   mips*-*-*)
 722     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 723     ;;
 724   romp-*-*)
 725     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 726     ;;
 727   sh-*-*)
 728     case "${host}" in
 729       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 730       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 731       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 732       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 733     esac
 734     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 735     ;;
 736   sh64-*-*)
 737     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 738     ;;
 739   sparc-*-elf*)
 740     noconfigdirs="$noconfigdirs ${libgcj}"
 741     ;;
 742   sparc64-*-elf*)
 743     noconfigdirs="$noconfigdirs ${libgcj}"
 744     ;;
 745   sparclite-*-*)
 746     noconfigdirs="$noconfigdirs ${libgcj}"
 747     ;;
 748   sparc-*-sunos4*)
 749     noconfigdirs="$noconfigdirs ${libgcj}"
 750     if test x${is_cross_compiler} != xno ; then
 751            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 752     else
 753            use_gnu_ld=no
 754     fi
 755     ;;
 756   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 757     ;;
 758   v810-*-*)
 759     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 760     ;;
 761   v850-*-*)
 762     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 763     ;;
 764   v850e-*-*)
 765     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 766     ;;
 767   v850ea-*-*)
 768     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 769     ;;
 770   vax-*-vms)
 771     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 772     ;;
 773   vax-*-*)
 774     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 775     ;;
 776   xtensa-*-*)
 777     noconfigdirs="$noconfigdirs ${libgcj}"
 778     ;;
 779   ip2k-*-*)
 780     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 781     ;;
 782   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 783     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 784     ;;
 785   *-*-lynxos*)
 786     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 787     ;;
 788   *-*-*)
 789     noconfigdirs="$noconfigdirs ${libgcj}"
 790     ;;
 791 esac
 792
 793 # If we aren't building newlib, then don't build libgloss, since libgloss
 794 # depends upon some newlib header files.
 795 case "${noconfigdirs}" in
 796   *target-libgloss*) ;;
 797   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 798 esac
 799
 800 # Work in distributions that contain no compiler tools, like Autoconf.
 801 tentative_cc=""
 802 host_makefile_frag=/dev/null
 803 if test -d ${srcdir}/config ; then
 804 case "${host}" in
 805   m68k-hp-hpux*)
 806     # Avoid "too much defining" errors from HPUX compiler.
 807     tentative_cc="cc -Wp,-H256000"
 808     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 809     # If it's HP/UX ar, this should be harmless.
 810     RANLIB="ar ts"
 811     ;;
 812   m68k-apollo-sysv*)
 813     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 814     ;;
 815   m68k-apollo-bsd*)
 816     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 817     # chokes on bfd, the compiler won't let you assign integers to enums, and
 818     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 819     # the apollo compiler" (the preferred version of GCC could be called cc,
 820     # or whatever), but I'm not sure leaving CC as cc is any better...
 821     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 822     # Used to have BISON=yacc.
 823     tentative_cc=gcc
 824     ;;
 825   m88k-dg-dgux*)
 826     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 827     ;;
 828   m88k-harris-cxux*)
 829     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 830     tentative_cc="cc -Xa"
 831     host_makefile_frag="config/mh-cxux"
 832     ;;
 833   m88k-motorola-sysv*)
 834     ;;
 835   mips*-dec-ultrix*)
 836     tentative_cc="cc -Wf,-XNg1000"
 837     host_makefile_frag="config/mh-decstation"
 838     ;;
 839   mips*-nec-sysv4*)
 840     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 841     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 842     host_makefile_frag="config/mh-necv4"
 843     ;;
 844   mips*-sgi-irix4*)
 845     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 846     # environment.  Also bump switch table size so that cp-parse will
 847     # compile.  Bump string length limit so linker builds.
 848     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 849     ;;
 850   mips*-*-sysv4*)
 851     host_makefile_frag="config/mh-sysv4"
 852     ;;
 853   mips*-*-sysv*)
 854     # This is for a MIPS running RISC/os 4.52C.
 855
 856     # This is needed for GDB, but needs to be in the top-level make because
 857     # if a library is compiled with the bsd headers and gets linked with the
 858     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 859     # a different size).
 860     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 861     # known except to select the sysv environment.  Could we use /proc instead?
 862     # These "sysv environments" and "bsd environments" often end up being a pain.
 863     #
 864     # This is not part of CFLAGS because perhaps not all C compilers have this
 865     # option.
 866     tentative_cc="cc -systype sysv"
 867     ;;
 868   i370-ibm-opened*)
 869     tentative_cc="c89"
 870     ;;
 871   i[[3456789]]86-*-sysv5*)
 872     host_makefile_frag="config/mh-sysv5"
 873     ;;
 874   i[[3456789]]86-*-dgux*)
 875     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 876     host_makefile_frag="config/mh-dgux386"
 877     ;;
 878   i[[3456789]]86-ncr-sysv4.3*)
 879     # The MetaWare compiler will generate a copyright message unless you
 880     # turn it off by adding the -Hnocopyr flag.
 881     tentative_cc="cc -Hnocopyr"
 882     ;;
 883   i[[3456789]]86-ncr-sysv4*)
 884     # for an NCR 3000 (i486/SVR4) system.
 885     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 886     # This compiler not only emits obnoxious copyright messages every time
 887     # you run it, but it chokes and dies on a whole bunch of GNU source
 888     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 889     tentative_cc="/usr/ccs/ATT/cc"
 890     host_makefile_frag="config/mh-ncr3000"
 891     ;;
 892   i[[3456789]]86-*-sco3.2v5*)
 893     ;;
 894   i[[3456789]]86-*-sco*)
 895     # The native C compiler botches some simple uses of const.  Unfortunately,
 896     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 897     tentative_cc="cc -Dconst="
 898     host_makefile_frag="config/mh-sco"
 899     ;;
 900   i[[3456789]]86-*-udk*)
 901     host_makefile_frag="config/mh-sysv5"
 902     ;;
 903   i[[3456789]]86-*-solaris2*)
 904     host_makefile_frag="config/mh-sysv4"
 905     ;;
 906   i[[3456789]]86-*-msdosdjgpp*)
 907     host_makefile_frag="config/mh-djgpp"
 908     ;;
 909   *-cygwin*)
 910     host_makefile_frag="config/mh-cygwin"
 911     ;;
 912   *-mingw32*)
 913     host_makefile_frag="config/mh-mingw32"
 914     ;;
 915   *-interix*)
 916     host_makefile_frag="config/mh-interix"
 917     ;;
 918   vax-*-ultrix2*)
 919     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 920     tentative_cc=gcc
 921     ;;
 922   *-*-solaris2*)
 923     host_makefile_frag="config/mh-solaris"
 924     ;;
 925   m68k-sun-sunos*)
 926     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 927     # without overflowing the jump tables (-J says to use a 32 bit table)
 928     tentative_cc="cc -J"
 929     ;;
 930   *-hp-hpux*)
 931     tentative_cc="cc -Wp,-H256000"
 932     ;;
 933   *-*-hiux*)
 934     tentative_cc="cc -Wp,-H256000"
 935     ;;
 936   rs6000-*-lynxos*)
 937     # /bin/cc is less than useful for our purposes.  Always use GCC
 938     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 939     host_makefile_frag="config/mh-lynxrs6k"
 940     ;;
 941   powerpc-*-darwin*)
 942     host_makefile_frag="config/mh-ppc-darwin"
 943     ;;
 944   *-*-lynxos*)
 945     # /bin/cc is less than useful for our purposes.  Always use GCC
 946     tentative_cc="/bin/gcc"
 947     ;;
 948   *-*-sysv4*)
 949     host_makefile_frag="config/mh-sysv4"
 950     ;;
 951   # This is placed last to prevent interfering with the cases above.
 952   i[[3456789]]86-*-*)
 953     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 954     host_makefile_frag="config/mh-x86omitfp"
 955     ;;
 956 esac
 957 fi
 958
 959 # If we aren't going to be using gcc, see if we can extract a definition
 960 # of CC from the fragment.
 961 # Actually, use the 'pre-extracted' version above.
 962 if test -z "${CC}" && test "${build}" = "${host}" ; then
 963   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 964   found=
 965   for dir in $PATH; do
 966     test -z "$dir" && dir=.
 967     if test -f $dir/gcc; then
 968       found=yes
 969       break
 970     fi
 971   done
 972   IFS="$save_ifs"
 973   if test -z "${found}" && test -n "${tentative_cc}" ; then
 974     CC=$tentative_cc
 975   fi
 976 fi
 977
 978 if test "${build}" != "${host}" ; then
 979   # If we are doing a Canadian Cross, in which the host and build systems
 980   # are not the same, we set reasonable default values for the tools.
 981
 982   CC=${CC-${host_alias}-gcc}
 983   CFLAGS=${CFLAGS-"-g -O2"}
 984   CXX=${CXX-${host_alias}-c++}
 985   CXXFLAGS=${CXXFLAGS-"-g -O2"}
 986   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
 987   CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc}
 988   CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++}
 989   GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj}
 990   GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}}
 991   BUILD_PREFIX=${build_alias}-
 992   BUILD_PREFIX_1=${build_alias}-
 993
 994 else
 995   # Set reasonable default values for some tools even if not Canadian.
 996   # Of course, these are different reasonable default values, originally
 997   # specified directly in the Makefile.
 998   # We don't export, so that autoconf can do its job.
 999   # Note that all these settings are above the fragment inclusion point
1000   # in Makefile.in, so can still be overridden by fragments.
1001   # This is all going to change when we autoconfiscate...
1002
1003   CC_FOR_BUILD="\$(CC)"
1004   GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
1005   BUILD_PREFIX=
1006   BUILD_PREFIX_1=loser-
1007
1008   AC_PROG_CC
1009
1010   # We must set the default linker to the linker used by gcc for the correct
1011   # operation of libtool.  If LD is not defined and we are using gcc, try to
1012   # set the LD default to the ld used by gcc.
1013   if test -z "$LD"; then
1014     if test "$GCC" = yes; then
1015       case $build in
1016       *-*-mingw*)
1017         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1018       *)
1019         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1020       esac
1021       case $gcc_prog_ld in
1022       # Accept absolute paths.
1023       [[\\/]* | [A-Za-z]:[\\/]*)]
1024         LD="$gcc_prog_ld" ;;
1025       esac
1026     fi
1027   fi
1028
1029   CXX=${CXX-"c++"}
1030   CFLAGS=${CFLAGS-"-g"}
1031   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1032 fi
1033
1034 ACX_PROG_GNAT
1035 ACX_PROG_CMP_IGNORE_INITIAL
1036
1037 # Check for GMP and MPFR
1038 gmplibs=
1039 gmpinc=
1040 have_gmp=yes
1041 # Specify a location for mpfr
1042 # check for this first so it ends up on the link line before gmp.
1043 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1044
1045 if test "x$with_mpfr_dir" != x; then
1046   gmpinc="-I$with_mpfr_dir/mpfr"
1047   gmplibs="$with_mpfr_dir/libmpfr.a"
1048 else
1049   gmplibs="-lmpfr"
1050 fi
1051
1052 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1053
1054 if test "x$with_mpfr" != x; then
1055   gmplibs="-L$with_mpfr/lib $gmplibs"
1056   gmpinc="-I$with_mpfr/include"
1057 fi
1058
1059 # Specify a location for gmp
1060 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1061
1062 if test "x$with_gmp_dir" != x; then
1063   gmpinc="$gmpinc -I$with_gmp_dir"
1064   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1065     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1066   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1067     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1068   fi
1069   # One of the later tests will catch the error if neither library is present.
1070 else
1071   gmplibs="$gmplibs -lgmp"
1072 fi
1073
1074 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1075
1076 if test "x$with_gmp" != x; then
1077   gmplibs="-L$with_gmp/lib $gmplibs"
1078   gmpinc="-I$with_gmp/include $gmpinc"
1079 fi
1080
1081 saved_CFLAGS="$CFLAGS"
1082 CFLAGS="$CFLAGS $gmpinc"
1083 # Check GMP actually works
1084 AC_MSG_CHECKING([for correct version of gmp.h])
1085 AC_TRY_COMPILE([#include "gmp.h"],[
1086 #if __GNU_MP_VERSION < 3
1087 choke me
1088 #endif
1089 ], [AC_MSG_RESULT([yes])],
1090   [AC_MSG_RESULT([no]); have_gmp=no])
1091
1092 if test x"$have_gmp" = xyes; then
1093   AC_MSG_CHECKING([for MPFR])
1094
1095   saved_LIBS="$LIBS"
1096   LIBS="$LIBS $gmplibs"
1097   AC_TRY_LINK([#include <gmp.h>
1098 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1099     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1100   LIBS="$saved_LIBS"
1101   CFLAGS="$saved_CFLAGS"
1102 fi
1103
1104 # Flags needed for both GMP and/or MPFR
1105 AC_SUBST(gmplibs)
1106 AC_SUBST(gmpinc)
1107
1108 # By default, C is the only stage 1 language.
1109 stage1_languages=c
1110 AC_SUBST(stage1_languages)
1111
1112 # Figure out what language subdirectories are present.
1113 # Look if the user specified --enable-languages="..."; if not, use
1114 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1115 # go away some day.
1116 # NB:  embedded tabs in this IF block -- do not untabify
1117 if test -d ${srcdir}/gcc; then
1118   if test x"${enable_languages+set}" != xset; then
1119     if test x"${LANGUAGES+set}" = xset; then
1120       enable_languages="${LANGUAGES}"
1121         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1122     else
1123       enable_languages=all
1124     fi
1125   else
1126     if test x"${enable_languages}" = x ||
1127        test x"${enable_languages}" = xyes;
1128        then
1129       echo configure.in: --enable-languages needs at least one language argument 1>&2
1130       exit 1
1131     fi
1132   fi
1133   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1134
1135   # First scan to see if an enabled language requires some other language.
1136   # We assume that a given config-lang.in will list all the language
1137   # front ends it requires, even if some are required indirectly.
1138   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1139     case ${lang_frag} in
1140       ..) ;;
1141       # The odd quoting in the next line works around
1142       # an apparent bug in bash 1.12 on linux.
1143       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1144       *)
1145         # From the config-lang.in, get $language, $lang_requires
1146         language=
1147         lang_requires=
1148         . ${lang_frag}
1149         for other in ${lang_requires} ; do
1150           case ,${enable_languages}, in
1151             *,$other,*) ;;
1152             *,all,*) ;;
1153             *,$language,*)
1154               echo " \`$other' language required by \`$language'; enabling" 1>&2
1155               enable_languages="${enable_languages},${other}"
1156               ;;
1157           esac
1158         done
1159         ;;
1160     esac
1161   done
1162
1163   new_enable_languages=c
1164   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1165   potential_languages=c
1166
1167   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1168     case ${lang_frag} in
1169       ..) ;;
1170       # The odd quoting in the next line works around
1171       # an apparent bug in bash 1.12 on linux.
1172       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1173       *)
1174         # From the config-lang.in, get $language, $target_libs,
1175         # $lang_dirs, $boot_language, and $build_by_default
1176         language=
1177         target_libs=
1178         lang_dirs=
1179         boot_language=
1180         build_by_default=
1181         need_gmp=
1182         . ${lang_frag}
1183         potential_languages="${potential_languages},${language}"
1184         # This is quite sensitive to the ordering of the case statement arms.
1185         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1186           *::*:*)
1187             echo "${lang_frag} doesn't set \$language." 1>&2
1188             exit 1
1189             ;;
1190           *:ada:no:*)
1191             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1192             add_this_lang=no
1193             ;;
1194           *,${language},*:*:*:*)
1195             # Language was explicitly selected; include it.
1196             add_this_lang=yes
1197             ;;
1198           *,all,*:*:*:no)
1199             # 'all' was selected, but this is not a default language
1200             # so do not include it.
1201             add_this_lang=no
1202             ;;
1203           *,all,*:*:*:*)
1204             # 'all' was selected and this is a default language; include it.
1205             add_this_lang=yes
1206             ;;
1207           *)
1208             add_this_lang=no
1209             ;;
1210         esac
1211
1212         # Disable languages that need GMP if it isn't available.
1213         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1214           *,${language},*:no:yes)
1215             # Specifically requested language; tell them.
1216             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1217             ;;
1218           *:no:yes)
1219             # Silently disable.
1220             add_this_lang=no
1221             ;;
1222         esac
1223
1224         case $add_this_lang in
1225           no)
1226             # Remove language-dependent dirs.
1227             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1228             ;;
1229           *)
1230             new_enable_languages="$new_enable_languages,$language"
1231             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1232             case ${boot_language} in
1233               yes)
1234                 # Add to (comma-separated) list of stage 1 languages.
1235                 stage1_languages="${stage1_languages},${language}"
1236                 ;;
1237             esac
1238             ;;
1239         esac
1240         ;;
1241     esac
1242   done
1243
1244   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1245   if test "x$missing_languages" != x; then
1246     AC_MSG_ERROR([
1247 The following requested languages were not found: ${missing_languages}
1248 The available languages are: ${potential_languages}])
1249   fi
1250
1251   if test "x$new_enable_languages" != "x$enable_languages"; then
1252     echo The following languages will be built: ${new_enable_languages}
1253   fi
1254   enable_languages="$new_enable_languages"
1255   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1256 fi
1257
1258 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1259 # $build_configdirs and $target_configdirs.
1260 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1261
1262 notsupp=""
1263 for dir in . $skipdirs $noconfigdirs ; do
1264   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1265   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1266     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1267     if test -r $srcdir/$dirname/configure ; then
1268       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1269         true
1270       else
1271         notsupp="$notsupp $dir"
1272       fi
1273     fi
1274   fi
1275   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1276     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1277     if test -r $srcdir/$dirname/configure ; then
1278       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1279         true
1280       else
1281         notsupp="$notsupp $dir"
1282       fi
1283     fi
1284   fi
1285   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1286     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1287     if test -r $srcdir/$dirname/configure ; then
1288       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1289         true
1290       else
1291         notsupp="$notsupp $dir"
1292       fi
1293     fi
1294   fi
1295 done
1296
1297 # Sometimes the tools are distributed with libiberty but with no other
1298 # libraries.  In that case, we don't want to build target-libiberty.
1299 if test -n "${target_configdirs}" ; then
1300   others=
1301   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1302     if test "$i" != "libiberty" ; then
1303       if test -r $srcdir/$i/configure ; then
1304         others=yes;
1305         break;
1306       fi
1307     fi
1308   done
1309   if test -z "${others}" ; then
1310     target_configdirs=
1311   fi
1312 fi
1313
1314 # Quietly strip out all directories which aren't configurable in this tree.
1315 # This relies on all configurable subdirectories being autoconfiscated, which
1316 # is now the case.
1317 build_configdirs_all="$build_configdirs"
1318 build_configdirs=
1319 for i in ${build_configdirs_all} ; do
1320   j=`echo $i | sed -e s/build-//g`
1321   if test -f ${srcdir}/$j/configure ; then
1322     build_configdirs="${build_configdirs} $i"
1323   fi
1324 done
1325
1326 configdirs_all="$configdirs"
1327 configdirs=
1328 for i in ${configdirs_all} ; do
1329   if test -f ${srcdir}/$i/configure ; then
1330     configdirs="${configdirs} $i"
1331   fi
1332 done
1333
1334 target_configdirs_all="$target_configdirs"
1335 target_configdirs=
1336 for i in ${target_configdirs_all} ; do
1337   j=`echo $i | sed -e s/target-//g`
1338   if test -f ${srcdir}/$j/configure ; then
1339     target_configdirs="${target_configdirs} $i"
1340   fi
1341 done
1342
1343 # Produce a warning message for the subdirs we can't configure.
1344 # This isn't especially interesting in the Cygnus tree, but in the individual
1345 # FSF releases, it's important to let people know when their machine isn't
1346 # supported by the one or two programs in a package.
1347
1348 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1349   # If $appdirs is non-empty, at least one of those directories must still
1350   # be configured, or we error out.  (E.g., if the gas release supports a
1351   # specified target in some subdirs but not the gas subdir, we shouldn't
1352   # pretend that all is well.)
1353   if test -n "$appdirs" ; then
1354     for dir in $appdirs ; do
1355       if test -r $dir/Makefile.in ; then
1356         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1357           appdirs=""
1358           break
1359         fi
1360         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1361           appdirs=""
1362           break
1363         fi
1364       fi
1365     done
1366     if test -n "$appdirs" ; then
1367       echo "*** This configuration is not supported by this package." 1>&2
1368       exit 1
1369     fi
1370   fi
1371   # Okay, some application will build, or we don't care to check.  Still
1372   # notify of subdirs not getting built.
1373   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1374   echo "    ${notsupp}" 1>&2
1375   echo "    (Any other directories should still work fine.)" 1>&2
1376 fi
1377
1378 case "$host" in
1379   *msdosdjgpp*)
1380     enable_gdbtk=no ;;
1381 esac
1382
1383 copy_dirs=
1384
1385 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1386 # the named directory are copied to $(tooldir)/sys-include.
1387 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1388   if test x${is_cross_compiler} = xno ; then
1389     echo 1>&2 '***' --with-headers is only supported when cross compiling
1390     exit 1
1391   fi
1392   if test x"${with_headers}" != xyes ; then
1393     case "${exec_prefixoption}" in
1394     "") x=${prefix} ;;
1395     *) x=${exec_prefix} ;;
1396     esac
1397     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1398   fi
1399 fi
1400
1401 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1402 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1403 # are permitted.
1404 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1405   if test x${is_cross_compiler} = xno ; then
1406     echo 1>&2 '***' --with-libs is only supported when cross compiling
1407     exit 1
1408   fi
1409   if test x"${with_libs}" != xyes ; then
1410     # Copy the libraries in reverse order, so that files in the first named
1411     # library override files in subsequent libraries.
1412     case "${exec_prefixoption}" in
1413     "") x=${prefix} ;;
1414     *) x=${exec_prefix} ;;
1415     esac
1416     for l in ${with_libs}; do
1417       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1418     done
1419   fi
1420 fi
1421
1422 # Handle ${copy_dirs}
1423 set fnord ${copy_dirs}
1424 shift
1425 while test $# != 0 ; do
1426   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1427     :
1428   else
1429     echo Copying $1 to $2
1430
1431     # Use the install script to create the directory and all required
1432     # parent directories.
1433     if test -d $2 ; then
1434       :
1435     else
1436       echo >config.temp
1437       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1438     fi
1439
1440     # Copy the directory, assuming we have tar.
1441     # FIXME: Should we use B in the second tar?  Not all systems support it.
1442     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1443
1444     # It is the responsibility of the user to correctly adjust all
1445     # symlinks.  If somebody can figure out how to handle them correctly
1446     # here, feel free to add the code.
1447
1448     echo $1 > $2/COPIED
1449   fi
1450   shift; shift
1451 done
1452
1453 extra_arflags_for_target=
1454 extra_nmflags_for_target=
1455 extra_ranlibflags_for_target=
1456 target_makefile_frag=/dev/null
1457 case "${target}" in
1458   *-*-netware*)
1459     target_makefile_frag="config/mt-netware"
1460     ;;
1461   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1462     target_makefile_frag="config/mt-gnu"
1463     ;;
1464   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1465     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1466     # commands to handle both 32-bit and 64-bit objects.  These flags are
1467     # harmless if we're using GNU nm or ar.
1468     extra_arflags_for_target=" -X32_64"
1469     extra_nmflags_for_target=" -B -X32_64"
1470     ;;
1471   *-*-darwin*)
1472     # ranlib from Darwin requires the -c flag to look at common symbols.
1473     extra_ranlibflags_for_target=" -c"
1474     ;;
1475   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1476     target_makefile_frag="config/mt-wince"
1477     ;;
1478 esac
1479
1480 alphaieee_frag=/dev/null
1481 case $target in
1482   alpha*-*-*)
1483     # This just makes sure to use the -mieee option to build target libs.
1484     # This should probably be set individually by each library.
1485     alphaieee_frag="config/mt-alphaieee"
1486     ;;
1487 esac
1488
1489 # If --enable-target-optspace always use -Os instead of -O2 to build
1490 # the target libraries, similarly if it is not specified, use -Os
1491 # on selected platforms.
1492 ospace_frag=/dev/null
1493 case "${enable_target_optspace}:${target}" in
1494   yes:*)
1495     ospace_frag="config/mt-ospace"
1496     ;;
1497   :d30v-*)
1498     ospace_frag="config/mt-d30v"
1499     ;;
1500   :m32r-* | :d10v-* | :fr30-*)
1501     ospace_frag="config/mt-ospace"
1502     ;;
1503   no:* | :*)
1504     ;;
1505   *)
1506     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1507     ;;
1508 esac
1509
1510 # Set with_gnu_as and with_gnu_ld as appropriate.
1511 #
1512 # This is done by determining whether or not the appropriate directory
1513 # is available, and by checking whether or not specific configurations
1514 # have requested that this magic not happen.
1515 #
1516 # The command line options always override the explicit settings in
1517 # configure.in, and the settings in configure.in override this magic.
1518 #
1519 # If the default for a toolchain is to use GNU as and ld, and you don't
1520 # want to do that, then you should use the --without-gnu-as and
1521 # --without-gnu-ld options for the configure script.
1522
1523 if test x${use_gnu_as} = x &&
1524    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1525   with_gnu_as=yes
1526   extra_host_args="$extra_host_args --with-gnu-as"
1527 fi
1528
1529 if test x${use_gnu_ld} = x &&
1530    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1531   with_gnu_ld=yes
1532   extra_host_args="$extra_host_args --with-gnu-ld"
1533 fi
1534
1535 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1536 # can detect this case.
1537
1538 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1539   with_newlib=yes
1540   extra_host_args="$extra_host_args --with-newlib"
1541 fi
1542
1543 # Default to using --with-stabs for certain targets.
1544 if test x${with_stabs} = x ; then
1545   case "${target}" in
1546   mips*-*-irix[[56]]*)
1547     ;;
1548   mips*-*-* | alpha*-*-osf*)
1549     with_stabs=yes;
1550     extra_host_args="${extra_host_args} --with-stabs"
1551     ;;
1552   esac
1553 fi
1554
1555 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1556 # them automatically.
1557 case "${host}" in
1558   hppa*64*-*-hpux11*)
1559     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1560     ;;
1561 esac
1562
1563 # Some systems (e.g., one of the i386-aix systems the gas testers are
1564 # using) don't handle "\$" correctly, so don't use it here.
1565 tooldir='${exec_prefix}'/${target_alias}
1566 build_tooldir=${tooldir}
1567
1568 # Generate default definitions for YACC, M4, LEX and other programs that run
1569 # on the build machine.  These are used if the Makefile can't locate these
1570 # programs in objdir.
1571 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
1572 AC_CHECK_PROGS([CONFIGURED_BISON], [bison], [$MISSING bison])
1573 AC_CHECK_PROGS([CONFIGURED_YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
1574 AC_CHECK_PROGS([CONFIGURED_M4], [gm4 gnum4 m4], [$MISSING m4])
1575 AC_CHECK_PROGS([CONFIGURED_FLEX], [flex], [$MISSING flex])
1576 AC_CHECK_PROGS([CONFIGURED_LEX], [flex lex], [$MISSING flex])
1577 AC_CHECK_PROGS([CONFIGURED_MAKEINFO], makeinfo, [$MISSING makeinfo])
1578
1579 # Create a .gdbinit file which runs the one in srcdir
1580 # and tells GDB to look there for source files.
1581
1582 if test -r ${srcdir}/.gdbinit ; then
1583   case ${srcdir} in
1584     .) ;;
1585     *) cat > ./.gdbinit <<EOF
1586 # ${NO_EDIT}
1587 dir ${srcdir}
1588 dir .
1589 source ${srcdir}/.gdbinit
1590 EOF
1591     ;;
1592   esac
1593 fi
1594
1595 # Make sure that the compiler is able to generate an executable.  If it
1596 # can't, we are probably in trouble.  We don't care whether we can run the
1597 # executable--we might be using a cross compiler--we only care whether it
1598 # can be created.  At this point the main configure script has set CC.
1599 we_are_ok=no
1600 echo "int main () { return 0; }" > conftest.c
1601 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1602 if test $? = 0 ; then
1603   if test -s conftest || test -s conftest.exe ; then
1604     we_are_ok=yes
1605   fi
1606 fi
1607 case $we_are_ok in
1608   no)
1609     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1610     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1611     rm -f conftest*
1612     exit 1
1613     ;;
1614 esac
1615 rm -f conftest*
1616
1617 # The Solaris /usr/ucb/cc compiler does not appear to work.
1618 case "${host}" in
1619   sparc-sun-solaris2*)
1620       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1621       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1622           could_use=
1623           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1624           if test -d /opt/cygnus/bin ; then
1625               if test "$could_use" = "" ; then
1626                   could_use="/opt/cygnus/bin"
1627               else
1628                   could_use="$could_use or /opt/cygnus/bin"
1629               fi
1630           fi
1631         if test "$could_use" = "" ; then
1632             echo "Warning: compilation may fail because you're using"
1633             echo "/usr/ucb/cc.  You should change your PATH or CC "
1634             echo "variable and rerun configure."
1635         else
1636             echo "Warning: compilation may fail because you're using"
1637             echo "/usr/ucb/cc, when you should use the C compiler from"
1638             echo "$could_use.  You should change your"
1639             echo "PATH or CC variable and rerun configure."
1640         fi
1641       fi
1642   ;;
1643 esac
1644
1645 # If no --enable-shared nor --disable-shared is specified, we set up
1646 # LD_LIBRARY_PATH when we build for gcc.
1647 case $enable_shared in
1648 "")
1649   if test -d ${srcdir}/gcc; then
1650     set_lib_path=yes
1651   else
1652     set_lib_path=no
1653   fi
1654   ;;
1655 *)
1656   set_lib_path=$enable_shared
1657   ;;
1658 esac
1659
1660 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
1661 # binutils tools will find libbfd.so.
1662 case "${set_lib_path}" in
1663   no) SET_LIB_PATH= ;;
1664   *) SET_LIB_PATH="\$(REALLY_SET_LIB_PATH)" ;;
1665 esac
1666
1667 case "${host}" in
1668   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1669   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1670 esac
1671
1672 # Record target_configdirs and the configure arguments for target and
1673 # build configuration in Makefile.
1674 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1675 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1676
1677 # Determine whether gdb needs tk/tcl or not.
1678 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1679 # and in that case we want gdb to be built without tk.  Ugh!
1680 # In fact I believe gdb is the *only* package directly dependent on tk,
1681 # so we should be able to put the 'maybe's in unconditionally and
1682 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1683 # 100% sure that that's safe though.
1684
1685 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1686 case "$enable_gdbtk" in
1687   no)
1688     GDB_TK="" ;;
1689   yes)
1690     GDB_TK="${gdb_tk}" ;;
1691   *)
1692     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1693     # distro.  Eventually someone will fix this and move Insight, nee
1694     # gdbtk to a separate directory.
1695     if test -d ${srcdir}/gdb/gdbtk ; then
1696       GDB_TK="${gdb_tk}"
1697     else
1698       GDB_TK=""
1699     fi
1700     ;;
1701 esac
1702
1703 # Strip out unwanted targets.
1704
1705 # While at that, we remove Makefiles if we were started for recursive
1706 # configuration, so that the top-level Makefile reconfigures them,
1707 # like we used to do when configure itself was recursive.
1708
1709 # Loop over modules.  $extrasub must be used with care, limiting as
1710 # much as possible the usage of range addresses.  That's because autoconf
1711 # splits the sed script to overcome limits in the number of commands,
1712 # and relying on carefully-timed sed passes may turn out to be very hard
1713 # to maintain later.  In this particular case, you just have to be careful
1714 # not to nest @if/@endif pairs, because configure will not warn you at all.
1715
1716 AC_ARG_ENABLE([bootstrap],
1717 [  --enable-bootstrap[=lean]     Enable bootstrapping [no]],,
1718 enable_bootstrap=default)
1719
1720 # Issue errors and warnings for invalid/strange bootstrap combinations.
1721 case "$configdirs" in
1722   *gcc*) have_compiler=yes ;;
1723   *) have_compiler=no ;;
1724 esac
1725
1726 case "$have_compiler:$host:$target:$enable_bootstrap" in
1727   *:*:*:no) ;;
1728
1729   # Default behavior.  (We'll) enable bootstrap if we have a compiler
1730   # and we are in a native configuration.
1731   yes:$build:$build:default)
1732     # This will become 'yes'
1733     enable_bootstrap=no ;;
1734
1735   *:*:*:default)
1736     enable_bootstrap=no ;;
1737
1738   # We have a compiler and we are in a native configuration, bootstrap is ok
1739   yes:$build:$build:yes | yes:$build:$build:lean)
1740     ;;
1741
1742   # Other configurations, but we have a compiler.  Assume the user knows
1743   # what he's doing.
1744   yes:*:*:yes | yes:*:*:lean)
1745     AC_MSG_WARN([trying to bootstrap a cross compiler])
1746     ;;
1747
1748   # No compiler: if they passed --enable-bootstrap explicitly, fail
1749   no:*:*:yes | no:*:*:lean)
1750     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1751
1752   # Fail if wrong command line
1753   *)
1754     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1755     ;;
1756 esac
1757
1758 # Adjust the toplevel makefile according to whether bootstrap was selected.
1759 case "$enable_bootstrap" in
1760   yes)
1761     bootstrap_lean='#'
1762     default_target=bootstrap
1763     bootstrap_suffix=bootstrap ;;
1764   lean)
1765     bootstrap_lean=''
1766     default_target=bootstrap
1767     bootstrap_suffix=bootstrap ;;
1768   no)
1769     default_target=all
1770     bootstrap_suffix=no-bootstrap ;;
1771 esac
1772 AC_SUBST(bootstrap_lean)
1773 AC_SUBST(default_target)
1774
1775 for module in ${build_configdirs} ; do
1776   if test -z "${no_recursion}" \
1777      && test -f ${build_subdir}/${module}/Makefile; then
1778     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1779     rm -f ${build_subdir}/${module}/Makefile
1780   fi
1781   extrasub="$extrasub
1782 /^@if build-$module\$/d
1783 /^@endif build-$module\$/d
1784 /^@if build-$module-$bootstrap_suffix\$/d
1785 /^@endif build-$module-$bootstrap_suffix\$/d"
1786 done
1787 for module in ${configdirs} ; do
1788   if test -z "${no_recursion}" \
1789      && test -f ${module}/Makefile; then
1790     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1791     rm -f ${module}/Makefile
1792   fi
1793   extrasub="$extrasub
1794 /^@if $module\$/d
1795 /^@endif $module\$/d
1796 /^@if $module-$bootstrap_suffix\$/d
1797 /^@endif $module-$bootstrap_suffix\$/d"
1798 done
1799 for module in ${target_configdirs} ; do
1800   if test -z "${no_recursion}" \
1801      && test -f ${target_subdir}/${module}/Makefile; then
1802     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1803     rm -f ${target_subdir}/${module}/Makefile
1804   fi
1805   extrasub="$extrasub
1806 /^@if target-$module\$/d
1807 /^@endif target-$module\$/d
1808 /^@if target-$module-$bootstrap_suffix\$/d
1809 /^@endif target-$module-$bootstrap_suffix\$/d"
1810 done
1811
1812 extrasub="$extrasub
1813 /^@if /,/^@endif /d"
1814
1815 # Create the serialization dependencies.  This uses a temporary file.
1816
1817 AC_ARG_ENABLE([serial-configure],
1818 [  --enable-serial-[{host,target,build}-]configure
1819                           Force sequential configuration of
1820                           sub-packages for the host, target or build
1821                           machine, or all sub-packages])
1822
1823 case ${enable_serial_configure} in
1824   yes)
1825     enable_serial_build_configure=yes
1826     enable_serial_host_configure=yes
1827     enable_serial_target_configure=yes
1828     ;;
1829 esac
1830
1831 # These force 'configure's to be done one at a time, to avoid problems
1832 # with contention over a shared config.cache.
1833 rm -f serdep.tmp
1834 echo '# serdep.tmp' > serdep.tmp
1835 olditem=
1836 test "x${enable_serial_build_configure}" = xyes &&
1837 for item in ${build_configdirs} ; do
1838   case ${olditem} in
1839     "") ;;
1840     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1841   esac
1842   olditem=${item}
1843 done
1844 olditem=
1845 test "x${enable_serial_host_configure}" = xyes &&
1846 for item in ${configdirs} ; do
1847   case ${olditem} in
1848     "") ;;
1849     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1850   esac
1851   olditem=${item}
1852 done
1853 olditem=
1854 test "x${enable_serial_target_configure}" = xyes &&
1855 for item in ${target_configdirs} ; do
1856   case ${olditem} in
1857     "") ;;
1858     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1859   esac
1860   olditem=${item}
1861 done
1862 serialization_dependencies=serdep.tmp
1863 AC_SUBST_FILE(serialization_dependencies)
1864
1865 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1866 # target and nonopt.  These are the ones we might not want to pass
1867 # down to subconfigures.  Also strip program-prefix, program-suffix,
1868 # and program-transform-name, so that we can pass down a consistent
1869 # program-transform-name.  If autoconf has put single quotes around
1870 # any of these arguments (because they contain shell metacharacters)
1871 # then this will fail; in practice this only happens for
1872 # --program-transform-name, so be sure to override --program-transform-name
1873 # at the end of the argument list.
1874 # These will be expanded by make, so quote '$'.
1875 cat <<\EOF_SED > conftestsed
1876 s/ --no[[^ ]]*/ /g
1877 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1878 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1879 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1880 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1881 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1882 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1883 s/ -cache-file[[= ]][[^ ]]*//g
1884 s/ -srcdir[[= ]][[^ ]]*//g
1885 s/ -host[[= ]][[^ ]]*//g
1886 s/ -build[[= ]][[^ ]]*//g
1887 s/ -target[[= ]][[^ ]]*//g
1888 s/ -program-prefix[[= ]][[^ ]]*//g
1889 s/ -program-suffix[[= ]][[^ ]]*//g
1890 s/ -program-transform-name[[= ]][[^ ]]*//g
1891 s/ [[^' -][^ ]*] / /
1892 s/^ *//;s/ *$//
1893 s,\$,$$,g
1894 EOF_SED
1895 sed -f conftestsed <<EOF_SED > conftestsed.out
1896  ${ac_configure_args}
1897 EOF_SED
1898 baseargs=`cat conftestsed.out`
1899 rm -f conftestsed conftestsed.out
1900
1901 # Add in --program-transform-name, after --program-prefix and
1902 # --program-suffix have been applied to it.  Autoconf has already
1903 # doubled dollar signs and backslashes in program_transform_name; we want
1904 # the backslashes un-doubled, and then the entire thing wrapped in single
1905 # quotes, because this will be expanded first by make and then by the shell.
1906 # Also, because we want to override the logic in subdir configure scripts to
1907 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1908 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1909 ${program_transform_name}
1910 EOF_SED
1911 gcc_transform_name=`cat conftestsed.out`
1912 rm -f conftestsed.out
1913 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1914
1915 # For the build-side libraries, we just need to pretend we're native,
1916 # and not use the same cache file.  Multilibs are neither needed nor
1917 # desired.
1918 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
1919
1920 # For host modules, accept cache file option, or specification as blank.
1921 case "${cache_file}" in
1922 "") # empty
1923   cache_file_option="" ;;
1924 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1925   cache_file_option="--cache-file=${cache_file}" ;;
1926 *) # relative path
1927   cache_file_option="--cache-file=../${cache_file}" ;;
1928 esac
1929
1930 # Host dirs don't like to share a cache file either, horribly enough.
1931 # This seems to be due to autoconf 2.5x stupidity.
1932 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1933
1934 target_configargs=${baseargs}
1935
1936 # Passing a --with-cross-host argument lets the target libraries know
1937 # whether they are being built with a cross-compiler or being built
1938 # native.  However, it would be better to use other mechanisms to make the
1939 # sorts of decisions they want to make on this basis.  Please consider
1940 # this option to be deprecated.  FIXME.
1941 if test x${is_cross_compiler} = xyes ; then
1942   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1943 fi
1944
1945 # Default to --enable-multilib.
1946 if test x${enable_multilib} = x ; then
1947   target_configargs="--enable-multilib ${target_configargs}"
1948 fi
1949
1950 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1951 # changed from the earlier setting of with_newlib.
1952 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1953   target_configargs="--with-newlib ${target_configargs}"
1954 fi
1955
1956 # Different target subdirs use different values of certain variables
1957 # (notably CXX).  Worse, multilibs use *lots* of different values.
1958 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1959 # it doesn't automatically accept command-line overrides of them.
1960 # This means it's not safe for target subdirs to share a cache file,
1961 # which is disgusting, but there you have it.  Hopefully this can be
1962 # fixed in future.  It's still worthwhile to use a cache file for each
1963 # directory.  I think.
1964
1965 # Pass the appropriate --host, --build, and --cache-file arguments.
1966 target_configargs="--cache-file=./config.cache --host=${target_alias} --build=${build_alias} ${target_configargs}"
1967
1968 # provide a proper gxx_include_dir.
1969 # Note, if you change the default, make sure to fix both here and in
1970 # the gcc and libstdc++-v3 subdirectories.
1971 # Check whether --with-gxx-include-dir or --without-gxx-include-dir was given.
1972 case "${with_gxx_include_dir}" in
1973   yes)
1974     AC_MSG_ERROR([--with-gxx-include-dir=[[dir]] requires a directory])
1975     ;;
1976   no | "")
1977     case "${enable_version_specific_runtime_libs}" in
1978       yes) gxx_include_dir='${libsubdir}/include/c++' ;;
1979       *)
1980         . ${srcdir}/config.if
1981         gxx_include_dir='${prefix}/include/'${libstdcxx_incdir} ;;
1982     esac ;;
1983   *) gxx_include_dir=${with_gxx_include_dir} ;;
1984 esac
1985
1986 FLAGS_FOR_TARGET=
1987 case " $target_configdirs " in
1988  *" newlib "*)
1989   case " $target_configargs " in
1990   *" --with-newlib "*)
1991    case "$target" in
1992    *-cygwin*)
1993      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 $$s/winsup/w32api/include' ;;
1994    esac
1995
1996    # If we're not building GCC, don't discard standard headers.
1997    if test -d ${srcdir}/gcc; then
1998      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1999
2000      if test "${build}" != "${host}"; then
2001        # On Canadian crosses, CC_FOR_TARGET will have already been set
2002        # by `configure', so we won't have an opportunity to add -Bgcc/
2003        # to it.  This is right: we don't want to search that directory
2004        # for binaries, but we want the header files in there, so add
2005        # them explicitly.
2006        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/gcc/include'
2007
2008        # Someone might think of using the pre-installed headers on
2009        # Canadian crosses, in case the installed compiler is not fully
2010        # compatible with the compiler being built.  In this case, it
2011        # would be better to flag an error than risking having
2012        # incompatible object files being constructed.  We can't
2013        # guarantee that an error will be flagged, but let's hope the
2014        # compiler will do it, when presented with incompatible header
2015        # files.
2016      fi
2017    fi
2018
2019    case "${target}-${is_cross_compiler}" in
2020    i[[3456789]]86-*-linux*-no)
2021       # Here host == target, so we don't need to build gcc,
2022       # so we don't want to discard standard headers.
2023       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2024       ;;
2025    *)
2026       # If we're building newlib, use its generic headers last, but search
2027       # for any libc-related directories first (so make it the last -B
2028       # switch).
2029       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2030       ;;
2031    esac
2032    ;;
2033   esac
2034   ;;
2035 esac
2036
2037 # Allow the user to override the flags for
2038 # our build compiler if desired.
2039 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2040
2041 # On Canadian crosses, we'll be searching the right directories for
2042 # the previously-installed cross compiler, so don't bother to add
2043 # flags for directories within the install tree of the compiler
2044 # being built; programs in there won't even run.
2045 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2046   # Search for pre-installed headers if nothing else fits.
2047   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2048 fi
2049
2050 if test "x${use_gnu_ld}" = x &&
2051    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2052   # Arrange for us to find uninstalled linker scripts.
2053   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/ld'
2054 fi
2055
2056 if test "x${CC_FOR_TARGET+set}" = xset; then
2057   :
2058 elif test -d ${srcdir}/gcc; then
2059   CC_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/'
2060 elif test "$host" = "$target"; then
2061   CC_FOR_TARGET='$(CC)'
2062 else
2063   CC_FOR_TARGET=`echo gcc | sed "${program_transform_name}"`
2064 fi
2065 CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2066
2067 if test "x${GCJ_FOR_TARGET+set}" = xset; then
2068   :
2069 elif test -d ${srcdir}/gcc; then
2070   GCJ_FOR_TARGET='$$r/gcc/gcj -B$$r/gcc/'
2071 elif test "$host" = "$target"; then
2072   GCJ_FOR_TARGET='gcj'
2073 else
2074   GCJ_FOR_TARGET=`echo gcj | sed "${program_transform_name}"`
2075 fi
2076 GCJ_FOR_TARGET=$GCJ_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2077
2078 if test "x${GFORTRAN_FOR_TARGET+set}" = xset; then
2079   :
2080 elif test -d ${srcdir}/gcc; then
2081   GFORTRAN_FOR_TARGET='$$r/gcc/gfortran -B$$r/gcc/'
2082 elif test "$host" = "$target"; then
2083   GFORTRAN_FOR_TARGET='gfortran'
2084 else
2085   GFORTRAN_FOR_TARGET=`echo gfortran | sed "${program_transform_name}"`
2086 fi
2087 case $GFORTRAN_FOR_TARGET in
2088 *' $(FLAGS_FOR_TARGET)') ;;
2089 *) GFORTRAN_FOR_TARGET=$GFORTRAN_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
2090 esac
2091
2092 # Don't use libstdc++-v3's flags to configure/build itself.
2093 libstdcxx_flags='`test ! -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags || $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2094 raw_libstdcxx_flags='-L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2095
2096 if test "x${CXX_FOR_TARGET+set}" = xset; then
2097   if test "x${RAW_CXX_FOR_TARGET+set}" != xset; then
2098     RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2099   fi
2100 elif test -d ${srcdir}/gcc; then
2101   # We add -shared-libgcc to CXX_FOR_TARGET whenever we use xgcc instead
2102   # of g++ for linking C++ or Java, because g++ has -shared-libgcc by
2103   # default whereas gcc does not.
2104   # RAW_CXX_FOR_TARGET is for linking C++ or java; CXX_FOR_TARGET is for
2105   # all other cases.
2106   CXX_FOR_TARGET='$$r/gcc/g++ -B$$r/gcc/ -nostdinc++ '$libstdcxx_flags
2107   RAW_CXX_FOR_TARGET='$$r/gcc/xgcc -shared-libgcc -B$$r/gcc/ -nostdinc++ '$raw_libstdcxx_flags
2108 elif test "$host" = "$target"; then
2109   CXX_FOR_TARGET='$(CXX)'
2110   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2111 else
2112   CXX_FOR_TARGET=`echo c++ | sed "${program_transform_name}"`
2113   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2114 fi
2115 CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2116 RAW_CXX_FOR_TARGET=$RAW_CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2117
2118 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2119 qRAW_CXX_FOR_TARGET=`echo "$RAW_CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2120
2121 # We want to defer the evaluation of `cmd`s and shell variables in
2122 # CXX_FOR_TARGET when recursing in the top-level Makefile, such as for
2123 # bootstrap.  We'll enclose CXX_FOR_TARGET_FOR_RECURSIVE_MAKE in single
2124 # quotes, but we still have to duplicate `$'s so that shell variables
2125 # can be expanded by the nested make as shell variables, not as make
2126 # macros.
2127 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2128 qqRAW_CXX_FOR_TARGET=`echo "$qRAW_CXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2129
2130 # Wrap CC_FOR_TARGET and friends, for certain types of builds.
2131 CC_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${CC_FOR_TARGET}"
2132 GCJ_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GCJ_FOR_TARGET}"
2133 GFORTRAN_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GFORTRAN_FOR_TARGET}"
2134 CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qCXX_FOR_TARGET}"
2135 RAW_CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qRAW_CXX_FOR_TARGET}"
2136 CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqCXX_FOR_TARGET}"
2137 RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqRAW_CXX_FOR_TARGET}"
2138
2139 # Makefile fragments.
2140 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2141 do
2142   eval fragval=\$$frag
2143   if test $fragval != /dev/null; then
2144     eval $frag=${srcdir}/$fragval
2145   fi
2146 done
2147 AC_SUBST_FILE(host_makefile_frag)
2148 AC_SUBST_FILE(target_makefile_frag)
2149 AC_SUBST_FILE(alphaieee_frag)
2150 AC_SUBST_FILE(ospace_frag)
2151
2152 # Miscellanea: directories, flags, etc.
2153 AC_SUBST(SET_LIB_PATH)
2154 AC_SUBST(RPATH_ENVVAR)
2155 AC_SUBST(BUILD_PREFIX)
2156 AC_SUBST(BUILD_PREFIX_1)
2157 AC_SUBST(gcc_version_trigger)
2158 AC_SUBST(gcc_version)
2159 AC_SUBST(tooldir)
2160 AC_SUBST(build_tooldir)
2161 AC_SUBST(GDB_TK)
2162 AC_SUBST(gxx_include_dir)
2163 AC_SUBST(libstdcxx_incdir)
2164
2165 # Build module lists & subconfigure args.
2166 AC_SUBST(build_configargs)
2167 AC_SUBST(build_configdirs)
2168
2169 # Host module lists & subconfigure args.
2170 AC_SUBST(host_configargs)
2171 AC_SUBST(configdirs)
2172
2173 # Target module lists & subconfigure args.
2174 AC_SUBST(target_configargs)
2175 AC_SUBST(target_configdirs)
2176
2177 # Build tools.
2178 AC_SUBST(CC_FOR_BUILD)
2179 AC_SUBST(config_shell)
2180
2181 # Host tools.
2182 NCN_STRICT_CHECK_TOOL(AR, ar)
2183 NCN_STRICT_CHECK_TOOL(AS, as)
2184 NCN_STRICT_CHECK_TOOL(DLLTOOL, dlltool)
2185 NCN_STRICT_CHECK_TOOL(LD, ld)
2186 NCN_STRICT_CHECK_TOOL(NM, nm)
2187 NCN_STRICT_CHECK_TOOL(RANLIB, ranlib, :)
2188 NCN_STRICT_CHECK_TOOL(WINDRES, windres)
2189 NCN_STRICT_CHECK_TOOL(OBJCOPY, objcopy)
2190 NCN_STRICT_CHECK_TOOL(OBJDUMP, objdump)
2191 AC_SUBST(CC)
2192 AC_SUBST(CXX)
2193 AC_SUBST(CFLAGS)
2194 AC_SUBST(CFLAGS_FOR_BUILD)
2195 AC_SUBST(CXXFLAGS)
2196
2197 # Target tools.
2198 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AR_FOR_TARGET, ar)
2199 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AS_FOR_TARGET, as)
2200 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_DLLTOOL_FOR_TARGET, dlltool)
2201 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_LD_FOR_TARGET, ld)
2202 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_NM_FOR_TARGET, nm)
2203 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_RANLIB_FOR_TARGET, ranlib, :)
2204 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_WINDRES_FOR_TARGET, windres)
2205
2206 AC_SUBST(GCC_FOR_TARGET)
2207 AC_SUBST(FLAGS_FOR_TARGET)
2208 AC_SUBST(CC_FOR_TARGET)
2209 AC_SUBST(GCJ_FOR_TARGET)
2210 AC_SUBST(GFORTRAN_FOR_TARGET)
2211 AC_SUBST(CXX_FOR_TARGET)
2212 AC_SUBST(RAW_CXX_FOR_TARGET)
2213 AC_SUBST(CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2214 AC_SUBST(RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2215
2216 # Fix up target tools.
2217 if test "x${build}" = "x${host}" ; then
2218   # In this case, the newly built tools can and should be used,
2219   # so we override the results of the autoconf tests.
2220   # This should really only happen when the tools are actually being built,
2221   # but that's a further refinement.  The new build scheme, where
2222   # tools are built into a structure paralleling where they're installed,
2223   # should also eliminate all of this cleanly.
2224   AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
2225   AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
2226   DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
2227   LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
2228   NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
2229   RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
2230   WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
2231 else
2232   # Just use the ones we found.
2233   AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)"
2234   AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)"
2235   DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)"
2236   LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)"
2237   NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)"
2238   RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)"
2239   WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)"
2240 fi
2241 AC_SUBST(AR_FOR_TARGET)
2242 AC_SUBST(AS_FOR_TARGET)
2243 AC_SUBST(DLLTOOL_FOR_TARGET)
2244 AC_SUBST(LD_FOR_TARGET)
2245 AC_SUBST(NM_FOR_TARGET)
2246 AC_SUBST(RANLIB_FOR_TARGET)
2247 AC_SUBST(WINDRES_FOR_TARGET)
2248
2249 # Certain tools may need extra flags.
2250 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2251 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2252 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2253
2254 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2255 AC_ARG_ENABLE(maintainer-mode,
2256 [  --enable-maintainer-mode enable make rules and dependencies not useful
2257                           (and sometimes confusing) to the casual installer],
2258       USE_MAINTAINER_MODE=$enableval,
2259       USE_MAINTAINER_MODE=no)
2260 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2261 AC_SUBST(MAINTAINER_MODE_TRUE)
2262 AC_SUBST(MAINTAINER_MODE_FALSE)
2263 if test "$USE_MAINTAINER_MODE" = yes; then
2264   MAINTAINER_MODE_TRUE=
2265   MAINTAINER_MODE_FALSE='#'
2266 else
2267   MAINTAINER_MODE_TRUE='#'
2268   MAINTAINER_MODE_FALSE=
2269 fi
2270 MAINT=$MAINTAINER_MODE_TRUE
2271 AC_SUBST(MAINT)dnl
2272
2273 # ---------------------
2274 # GCC bootstrap support
2275 # ---------------------
2276
2277 # Stage specific cflags for build.
2278 stage1_cflags="-g"
2279 case $build in
2280   vax-*-*)
2281     case ${GCC} in
2282       yes) stage1_cflags="-g -Wa,-J" ;;
2283       *) stage1_cflags="-g -J" ;;
2284     esac ;;
2285   powerpc-*-darwin*)
2286     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2287     # sources; use -no-cpp-precomp to get to GNU cpp.
2288     # Apple's GCC has bugs in designated initializer handling, so disable
2289     # that too.
2290     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2291     ;;
2292 esac
2293 AC_SUBST(stage1_cflags)
2294
2295 # It makes debugging easier if we create as symlinks the stage directories
2296 # gcc for stageN-gcc and stagePREV-gcc for stage(N-1).  In case this is not
2297 # possible, however, we can resort to mv.
2298 AC_CACHE_CHECK([if symbolic links between directories work],
2299 [gcc_cv_prog_ln_s_dir],
2300 [if test "${LN_S}" = "ln -s" \
2301    && mkdir confdir.s1 \
2302    && ln -s confdir.s1 confdir.s2 \
2303    && echo timestamp1 > confdir.s1/conftest.1 \
2304    && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
2305    && echo timestamp2 > confdir.s2/conftest.2 \
2306    && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
2307    && rm -f confdir.s2; then
2308   gcc_cv_prog_ln_s_dir=yes
2309 else
2310   gcc_cv_prog_ln_s_dir=yes
2311 fi
2312 rm -rf confdir.s1 confdir.s2])
2313
2314 case ${gcc_cv_prog_ln_s_dir} in
2315   yes)
2316     CREATE_LINK_TO_DIR='ln -s $$1 $$2'
2317     UNDO_LINK_TO_DIR='rm -f $$1' ;;
2318   *)
2319     CREATE_LINK_TO_DIR='mv $$1 $$2'
2320     UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
2321 esac
2322 AC_SUBST(CREATE_LINK_TO_DIR)
2323 AC_SUBST(UNDO_LINK_TO_DIR)
2324
2325 # Enable -Werror in bootstrap stage2 and later.
2326 # Change the default to "no" on release branches.
2327 AC_ARG_ENABLE(werror,
2328 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2329 [enable_werror=yes])
2330 case ${enable_werror} in
2331   yes) stage2_werror_flag="--enable-werror-always" ;;
2332   *) stage2_werror_flag="" ;;
2333 esac
2334 AC_SUBST(stage2_werror_flag)
2335
2336 # If gcc is built natively with shared library enabled, set
2337 # $RPATH_ENVVAR to make sure the newly built gcc shared librares are
2338 # used.
2339 SET_GCC_LIB_PATH=
2340 if test -d ${srcdir}/gcc && test x${is_cross_compiler} = xno; then
2341   case "${set_lib_path}" in
2342     no) ;;
2343     *)
2344       eval "d=\$$RPATH_ENVVAR"
2345       if test x"$d" != x; then
2346         d="$pwd/gcc:$d"
2347       else
2348         d="$pwd/gcc"
2349     fi
2350     SET_GCC_LIB_PATH="\$(RPATH_ENVVAR)=$d; export \$(RPATH_ENVVAR);"
2351     ;;
2352   esac
2353 fi
2354 AC_SUBST(SET_GCC_LIB_PATH)
2355
2356 AC_OUTPUT(Makefile)