configure.in

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   2 #   2000, 2001, 2002, 2003, 2004, 2005, 2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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
 102 ### To add a new directory to the tree, first choose whether it is a target
 103 ### or a host dependent tool.  Then put it into the appropriate list
 104 ### (library or tools, host or target), doing a dependency sort.
 105
 106 # Subdirs will be configured in the order listed in build_configdirs,
 107 # configdirs, or target_configdirs; see the serialization section below.
 108
 109 # Dependency sorting is only needed when *configuration* must be done in
 110 # a particular order.  In all cases a dependency should be specified in
 111 # the Makefile, whether or not it's implicitly specified here.
 112
 113 # Double entries in build_configdirs, configdirs, or target_configdirs may
 114 # cause circular dependencies and break everything horribly.
 115
 116 # these library is used by various programs built for the build
 117 # environment
 118 #
 119 build_libs="build-libiberty"
 120
 121 # these tools are built for the build environment
 122 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
 123
 124 # these libraries are used by various programs built for the host environment
 125 #
 126 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber"
 127
 128 # these tools are built for the host environment
 129 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 130 # know that we are building the simulator.
 131 # binutils, gas and ld appear in that order because it makes sense to run
 132 # "make check" in that particular order.
 133 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 gnattools"
 134
 135 # libgcj represents the runtime libraries only used by gcj.
 136 libgcj="target-libffi \
 137         target-zlib \
 138         target-qthreads \
 139         target-libjava"
 140
 141 # these libraries are built for the target environment, and are built after
 142 # the host libraries and the host tools (which may be a cross compiler)
 143 #
 144 target_libraries="target-libiberty \
 145                 target-libgcc \
 146                 target-libgloss \
 147                 target-newlib \
 148                 target-libstdc++-v3 \
 149                 target-libmudflap \
 150                 target-libssp \
 151                 target-libgfortran \
 152                 target-boehm-gc \
 153                 ${libgcj} \
 154                 target-libobjc \
 155                 target-libada \
 156                 target-libgomp"
 157
 158 # these tools are built using the target libraries, and are intended to
 159 # run only in the target environment
 160 #
 161 # note: any program that *uses* libraries that are in the "target_libraries"
 162 # list belongs in this list.  those programs are also very likely
 163 # candidates for the "native_only" list which follows
 164 #
 165 target_tools="target-examples target-groff target-gperf target-rda"
 166
 167 ################################################################################
 168
 169 ## All tools belong in one of the four categories, and are assigned above
 170 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 171 ## is important because configure will choke if they ever get through.
 172 ## ${configdirs} is directories we build using the host tools.
 173 ## ${target_configdirs} is directories we build using the target tools.
 174 configdirs=`echo ${host_libs} ${host_tools}`
 175 target_configdirs=`echo ${target_libraries} ${target_tools}`
 176 build_configdirs=`echo ${build_libs} ${build_tools}`
 177
 178 ################################################################################
 179
 180 srcname="gnu development package"
 181
 182 # This gets set non-empty for some net releases of packages.
 183 appdirs=""
 184
 185 # Define is_cross_compiler to save on calls to 'test'.
 186 is_cross_compiler=
 187 if test x"${host}" = x"${target}" ; then
 188   is_cross_compiler=no
 189 else
 190   is_cross_compiler=yes
 191 fi
 192
 193 # Find the build and target subdir names.
 194 GCC_TOPLEV_SUBDIRS
 195
 196 # Skipdirs are removed silently.
 197 skipdirs=
 198 # Noconfigdirs are removed loudly.
 199 noconfigdirs=""
 200
 201 use_gnu_ld=
 202 # Make sure we don't let GNU ld be added if we didn't want it.
 203 if test x$with_gnu_ld = xno ; then
 204   use_gnu_ld=no
 205   noconfigdirs="$noconfigdirs ld"
 206 fi
 207
 208 use_gnu_as=
 209 # Make sure we don't let GNU as be added if we didn't want it.
 210 if test x$with_gnu_as = xno ; then
 211   use_gnu_as=no
 212   noconfigdirs="$noconfigdirs gas"
 213 fi
 214
 215 # some tools are so dependent upon X11 that if we're not building with X,
 216 # it's not even worth trying to configure, much less build, that tool.
 217
 218 case ${with_x} in
 219   yes | "") ;; # the default value for this tree is that X11 is available
 220   no)
 221     skipdirs="${skipdirs} tk itcl libgui"
 222     # We won't be able to build gdbtk without X.
 223     enable_gdbtk=no
 224     ;;
 225   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 226 esac
 227
 228 # Some tools are only suitable for building in a "native" situation.
 229 # Remove these if host!=target.
 230 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"
 231
 232 # Similarly, some are only suitable for cross toolchains.
 233 # Remove these if host=target.
 234 cross_only="target-libgloss target-newlib target-opcodes"
 235
 236 case $is_cross_compiler in
 237   no) skipdirs="${skipdirs} ${cross_only}" ;;
 238   yes) skipdirs="${skipdirs} ${native_only}" ;;
 239 esac
 240
 241 # If both --with-headers and --with-libs are specified, default to
 242 # --without-newlib.
 243 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 244    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 245   if test x"${with_newlib}" = x ; then
 246     with_newlib=no
 247   fi
 248 fi
 249
 250 # Recognize --with-newlib/--without-newlib.
 251 case ${with_newlib} in
 252   no) skipdirs="${skipdirs} target-newlib" ;;
 253   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 254 esac
 255
 256 # Configure extra directories which are host specific
 257
 258 case "${host}" in
 259   *-cygwin*)
 260     configdirs="$configdirs libtermcap" ;;
 261 esac
 262
 263 # A target can indicate whether a language isn't supported for some reason.
 264 # Only spaces may be used in this macro; not newlines or tabs.
 265 unsupported_languages=
 266
 267 # Remove more programs from consideration, based on the host or
 268 # target this usually means that a port of the program doesn't
 269 # exist yet.
 270
 271 case "${host}" in
 272   hppa*64*-*-*)
 273     noconfigdirs="$noconfigdirs byacc"
 274     ;;
 275   i[[3456789]]86-*-vsta)
 276     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 277     ;;
 278   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 279     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 280     ;;
 281   i[[3456789]]86-*-mingw32*)
 282     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 283     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool newlib"
 284     ;;
 285   i[[3456789]]86-*-beos*)
 286     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 287     ;;
 288   *-*-cygwin*)
 289     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 290     ;;
 291   *-*-netbsd*)
 292     noconfigdirs="$noconfigdirs rcs"
 293     ;;
 294   ppc*-*-pe)
 295     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 296     ;;
 297   powerpc-*-beos*)
 298     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 299     ;;
 300 esac
 301
 302
 303 AC_ARG_ENABLE(libada,
 304 [  --enable-libada        Builds libada directory],
 305 ENABLE_LIBADA=$enableval,
 306 ENABLE_LIBADA=yes)
 307 if test "${ENABLE_LIBADA}" != "yes" ; then
 308   noconfigdirs="$noconfigdirs gnattools"
 309 fi
 310
 311 AC_ARG_ENABLE(libssp,
 312 [  --enable-libssp        Builds libssp directory],
 313 ENABLE_LIBSSP=$enableval,
 314 ENABLE_LIBSSP=yes)
 315
 316 # Save it here so that, even in case of --enable-libgcj, if the Java
 317 # front-end isn't enabled, we still get libgcj disabled.
 318 libgcj_saved=$libgcj
 319 case $enable_libgcj in
 320 yes)
 321   # If we reset it here, it won't get added to noconfigdirs in the
 322   # target-specific build rules, so it will be forcibly enabled
 323   # (unless the Java language itself isn't enabled).
 324   libgcj=
 325   ;;
 326 no)
 327   # Make sure we get it printed in the list of not supported target libs.
 328   noconfigdirs="$noconfigdirs ${libgcj}"
 329   ;;
 330 esac
 331
 332
 333 # Disable libmudflap on some systems.
 334 if test x$enable_libmudflap = x ; then
 335     case "${target}" in
 336     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 337         # Enable libmudflap by default in GNU and friends.
 338         ;;
 339     *-*-freebsd*)
 340         # Enable libmudflap by default in FreeBSD.
 341         ;;
 342     *)
 343         # Disable it by default everywhere else.
 344         noconfigdirs="$noconfigdirs target-libmudflap"
 345         ;;
 346     esac
 347 fi
 348
 349 # Disable libgomp on non POSIX hosted systems.
 350 if test x$enable_libgomp = x ; then
 351     # Enable libgomp by default on hosted POSIX systems.
 352     case "${target}" in
 353     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 354         ;;
 355     *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
 356         ;;
 357     *-*-solaris2* | *-*-sysv4* | *-*-irix6* | *-*-osf* | *-*-hpux11*)
 358         ;;
 359     *-*-darwin* | *-*-aix*)
 360         ;;
 361     *)
 362         noconfigdirs="$noconfigdirs target-libgomp"
 363         ;;
 364     esac
 365 fi
 366
 367
 368 case "${target}" in
 369   *-*-chorusos)
 370     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 371     ;;
 372   powerpc-*-darwin* | i[[3456789]]86-*-darwin*)
 373     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 374     noconfigdirs="$noconfigdirs sim target-rda"
 375     ;;
 376   *-*-darwin*)
 377     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 378     noconfigdirs="$noconfigdirs sim target-rda"
 379     noconfigdirs="$noconfigdirs ${libgcj}"
 380     ;;
 381   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 382     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 383     ;;
 384   *-*-freebsd*)
 385     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 386     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 387         && test -f /usr/local/include/gmp.h; then
 388       with_gmp=/usr/local
 389     fi
 390
 391     # Skip some stuff that's unsupported on some FreeBSD configurations.
 392     case "${target}" in
 393       i*86-*-*) ;;
 394       alpha*-*-*) ;;
 395       *)
 396         noconfigdirs="$noconfigdirs ${libgcj}"
 397         ;;
 398     esac
 399     ;;
 400   *-*-kaos*)
 401     # Remove unsupported stuff on all kaOS configurations.
 402     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 403     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 404     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 405     noconfigdirs="$noconfigdirs target-libgloss"
 406     ;;
 407   *-*-netbsd*)
 408     # Skip some stuff on all NetBSD configurations.
 409     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 410
 411     # Skip some stuff that's unsupported on some NetBSD configurations.
 412     case "${target}" in
 413       i*86-*-netbsdelf*) ;;
 414       arm*-*-netbsdelf*) ;;
 415       *)
 416         noconfigdirs="$noconfigdirs ${libgcj}"
 417         ;;
 418     esac
 419     ;;
 420   *-*-netware*)
 421     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 422     ;;
 423   *-*-rtems*)
 424     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 425     ;;
 426     # The tpf target doesn't support gdb yet.
 427   *-*-tpf*)
 428     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 429     ;;
 430   *-*-uclinux*)
 431     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 432     ;;
 433   *-*-vxworks*)
 434     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
 435     ;;
 436   alpha*-dec-osf*)
 437     # ld works, but does not support shared libraries.
 438     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 439     # gas doesn't generate exception information.
 440     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 441     ;;
 442   alpha*-*-*vms*)
 443     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 444     ;;
 445   alpha*-*-linux*)
 446     # newlib is not 64 bit ready
 447     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 448     ;;
 449   alpha*-*-*)
 450     # newlib is not 64 bit ready
 451     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 452     ;;
 453   am33_2.0-*-linux*)
 454     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 455     ;;
 456   sh-*-linux*)
 457     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 458     ;;
 459   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 460     noconfigdirs="$noconfigdirs ${libgcj}"
 461     noconfigdirs="$noconfigdirs target-examples"
 462     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 463     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 464     noconfigdirs="$noconfigdirs expect dejagnu"
 465     # the C++ libraries don't build on top of CE's C libraries
 466     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 467     noconfigdirs="$noconfigdirs target-newlib"
 468     case "${host}" in
 469       *-*-cygwin*) ;; # keep gdb and readline
 470       *) noconfigdirs="$noconfigdirs gdb readline"
 471          ;;
 472     esac
 473     ;;
 474   arc-*-*)
 475     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 476     ;;
 477   arm-semi-aof )
 478     ;;
 479   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 480     noconfigdirs="$noconfigdirs ${libgcj}"
 481     ;;
 482   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 483     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 484     ;;
 485   arm*-*-linux-gnueabi)
 486     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 487     noconfigdirs="$noconfigdirs target-libjava target-libobjc"
 488     ;;
 489   arm*-*-symbianelf*)
 490     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 491     ;;
 492   arm-*-pe*)
 493     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 494     ;;
 495   thumb-*-coff)
 496     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 497     ;;
 498   thumb-*-elf)
 499     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 500     ;;
 501   thumb-*-pe)
 502     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 503     ;;
 504   arm-*-riscix*)
 505     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 506     ;;
 507   avr-*-*)
 508     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 509     ;;
 510   bfin-*-*)
 511     noconfigdirs="$noconfigdirs gdb"
 512     if test x${is_cross_compiler} != xno ; then
 513       target_configdirs="${target_configdirs} target-bsp target-cygmon"
 514     fi
 515     ;;
 516   c4x-*-* | tic4x-*-*)
 517     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 518     ;;
 519   c54x*-*-* | tic54x-*-*)
 520     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 521     ;;
 522   cris-*-* | crisv32-*-*)
 523     unsupported_languages="$unsupported_languages java"
 524     case "${target}" in
 525       *-*-aout)
 526         unsupported_languages="$unsupported_languages fortran"
 527         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 528       *-*-elf)
 529         unsupported_languages="$unsupported_languages fortran"
 530         noconfigdirs="$noconfigdirs target-boehm-gc";;
 531       *-*-linux*)
 532         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 533       *)
 534         unsupported_languages="$unsupported_languages fortran"
 535         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 536     esac
 537     ;;
 538   crx-*-*)
 539     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 540     ;;
 541   d10v-*-*)
 542     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 543     ;;
 544   d30v-*-*)
 545     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 546     ;;
 547   fr30-*-elf*)
 548     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 549     ;;
 550   frv-*-*)
 551     noconfigdirs="$noconfigdirs ${libgcj}"
 552     ;;
 553   h8300*-*-*)
 554     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 555     ;;
 556   h8500-*-*)
 557     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 558     ;;
 559   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 560     ;;
 561   hppa*64*-*-linux* | parisc*64*-*-linux*)
 562     # In this case, it's because the hppa64-linux target is for
 563     # the kernel only at this point and has no libc, and thus no
 564     # headers, crt*.o, etc., all of which are needed by these.
 565     noconfigdirs="$noconfigdirs target-zlib"
 566     ;;
 567   parisc*-*-linux* | hppa*-*-linux*)
 568     ;;
 569   hppa*-*-*elf* | \
 570   hppa*-*-lites* | \
 571   hppa*-*-openbsd* | \
 572   hppa*64*-*-*)
 573     noconfigdirs="$noconfigdirs ${libgcj}"
 574     ;;
 575   hppa*-hp-hpux11*)
 576     noconfigdirs="$noconfigdirs ld shellutils"
 577     ;;
 578   hppa*-*-*)
 579     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 580     # build on HP-UX 10.20.
 581     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 582     ;;
 583   i960-*-*)
 584     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 585     ;;
 586   ia64*-*-elf*)
 587     # No gdb support yet.
 588     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 589     ;;
 590   ia64*-**-hpux*)
 591     # No gdb or ld support yet.
 592     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 593     ;;
 594   i370-*-opened*)
 595     ;;
 596   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 597     noconfigdirs="$noconfigdirs ${libgcj}"
 598     ;;
 599   i[[3456789]]86-*-linux*)
 600     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 601     # not build java stuff by default.
 602     case "${target}" in
 603       *-*-*libc1*)
 604         noconfigdirs="$noconfigdirs ${libgcj}";;
 605     esac
 606
 607     # This section makes it possible to build newlib natively on linux.
 608     # If we are using a cross compiler then don't configure newlib.
 609     if test x${is_cross_compiler} != xno ; then
 610       noconfigdirs="$noconfigdirs target-newlib"
 611     fi
 612     noconfigdirs="$noconfigdirs target-libgloss"
 613     # If we are not using a cross compiler, do configure newlib.
 614     # Note however, that newlib will only be configured in this situation
 615     # if the --with-newlib option has been given, because otherwise
 616     # 'target-newlib' will appear in skipdirs.
 617     ;;
 618   i[[3456789]]86-*-mingw32*)
 619     target_configdirs="$target_configdirs target-winsup"
 620     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 621     ;;
 622   *-*-cygwin*)
 623     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 624     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 625     # always build newlib if winsup directory is present.
 626     if test -d "$srcdir/winsup/cygwin"; then
 627       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 628     elif test -d "$srcdir/newlib"; then
 629       echo "Warning: winsup/cygwin is missing so newlib can't be built."
 630     fi
 631     ;;
 632   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 633   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 634     ;;
 635   i[[3456789]]86-*-pe)
 636     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 637     ;;
 638   i[[3456789]]86-*-sco3.2v5*)
 639     # The linker does not yet know about weak symbols in COFF,
 640     # and is not configured to handle mixed ELF and COFF.
 641     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 642     ;;
 643   i[[3456789]]86-*-sco*)
 644     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 645     ;;
 646   i[[3456789]]86-*-solaris2*)
 647     noconfigdirs="$noconfigdirs target-libgloss"
 648     ;;
 649   i[[3456789]]86-*-sysv4*)
 650     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 651     ;;
 652   i[[3456789]]86-*-beos*)
 653     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 654     ;;
 655   i[[3456789]]86-*-rdos*)
 656     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 657     ;;
 658   m32r-*-*)
 659     noconfigdirs="$noconfigdirs ${libgcj}"
 660     ;;
 661   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 662     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 663     ;;
 664   m68k-*-elf*)
 665     noconfigdirs="$noconfigdirs ${libgcj}"
 666     ;;
 667   m68k-*-coff*)
 668     noconfigdirs="$noconfigdirs ${libgcj}"
 669     ;;
 670   mcore-*-pe*)
 671   # The EPOC C++ environment does not support exceptions or rtti,
 672   # and so building libstdc++-v3 tends not to always work.
 673     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 674     ;;
 675   mmix-*-*)
 676     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 677     unsupported_languages="$unsupported_languages fortran java"
 678     ;;
 679   mn10200-*-*)
 680     noconfigdirs="$noconfigdirs ${libgcj}"
 681     ;;
 682   mn10300-*-*)
 683     noconfigdirs="$noconfigdirs ${libgcj}"
 684     ;;
 685   mt-*-*)
 686     noconfigdirs="$noconfigdirs sim"
 687     ;;
 688   powerpc-*-aix*)
 689     # copied from rs6000-*-* entry
 690     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 691     ;;
 692   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 693     target_configdirs="$target_configdirs target-winsup"
 694     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 695     # always build newlib.
 696     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 697     ;;
 698     # This is temporary until we can link against shared libraries
 699   powerpcle-*-solaris*)
 700     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 701     ;;
 702   powerpc-*-beos*)
 703     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 704     ;;
 705   powerpc-*-eabi)
 706     noconfigdirs="$noconfigdirs ${libgcj}"
 707     ;;
 708   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 709     ;;
 710   rs6000-*-lynxos*)
 711     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 712     ;;
 713   rs6000-*-aix*)
 714     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 715     ;;
 716   rs6000-*-*)
 717     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 718     ;;
 719   m68k-apollo-*)
 720     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 721     ;;
 722   mips*-*-irix5*)
 723     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 724     ;;
 725   mips*-*-irix6*)
 726     # Linking libjava exceeds command-line length limits on at least
 727     # IRIX 6.2, but not on IRIX 6.5.
 728     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 729     # <oldham@codesourcery.com>
 730     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 731     ;;
 732   mips*-*-bsd*)
 733     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 734     ;;
 735   mips64*-*-linux*)
 736     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 737     ;;
 738   mips*-*-linux*)
 739     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 740     ;;
 741   mips*-*-*)
 742     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 743     ;;
 744   romp-*-*)
 745     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 746     ;;
 747   sh-*-* | sh64-*-*)
 748     case "${host}" in
 749       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 750       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 751       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 752       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 753     esac
 754     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 755     ;;
 756   sparc-*-elf*)
 757     noconfigdirs="$noconfigdirs ${libgcj}"
 758     ;;
 759   sparc64-*-elf*)
 760     noconfigdirs="$noconfigdirs ${libgcj}"
 761     ;;
 762   sparclite-*-*)
 763     noconfigdirs="$noconfigdirs ${libgcj}"
 764     ;;
 765   sparc-*-sunos4*)
 766     noconfigdirs="$noconfigdirs ${libgcj}"
 767     if test x${is_cross_compiler} != xno ; then
 768            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 769     else
 770            use_gnu_ld=no
 771     fi
 772     ;;
 773   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 774     noconfigdirs="$noconfigdirs ${libgcj}"
 775     ;;
 776   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 777     ;;
 778   spu-*-*)
 779     skipdirs="target-libssp"
 780     ;;
 781   v810-*-*)
 782     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 783     ;;
 784   v850-*-*)
 785     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 786     ;;
 787   v850e-*-*)
 788     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 789     ;;
 790   v850ea-*-*)
 791     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 792     ;;
 793   vax-*-vms)
 794     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 795     ;;
 796   vax-*-*)
 797     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 798     ;;
 799   xtensa-*-*)
 800     noconfigdirs="$noconfigdirs ${libgcj}"
 801     ;;
 802   ip2k-*-*)
 803     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 804     ;;
 805   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 806     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 807     ;;
 808   *-*-lynxos*)
 809     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 810     ;;
 811   *-*-*)
 812     noconfigdirs="$noconfigdirs ${libgcj}"
 813     ;;
 814 esac
 815
 816 # If we aren't building newlib, then don't build libgloss, since libgloss
 817 # depends upon some newlib header files.
 818 case "${noconfigdirs}" in
 819   *target-libgloss*) ;;
 820   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 821 esac
 822
 823 # Work in distributions that contain no compiler tools, like Autoconf.
 824 tentative_cc=""
 825 host_makefile_frag=/dev/null
 826 if test -d ${srcdir}/config ; then
 827 case "${host}" in
 828   m68k-hp-hpux*)
 829     # Avoid "too much defining" errors from HPUX compiler.
 830     tentative_cc="cc -Wp,-H256000"
 831     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 832     # If it's HP/UX ar, this should be harmless.
 833     RANLIB="ar ts"
 834     ;;
 835   m68k-apollo-sysv*)
 836     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 837     ;;
 838   m68k-apollo-bsd*)
 839     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 840     # chokes on bfd, the compiler won't let you assign integers to enums, and
 841     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 842     # the apollo compiler" (the preferred version of GCC could be called cc,
 843     # or whatever), but I'm not sure leaving CC as cc is any better...
 844     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 845     # Used to have BISON=yacc.
 846     tentative_cc=gcc
 847     ;;
 848   m88k-dg-dgux*)
 849     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 850     ;;
 851   m88k-harris-cxux*)
 852     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 853     tentative_cc="cc -Xa"
 854     host_makefile_frag="config/mh-cxux"
 855     ;;
 856   m88k-motorola-sysv*)
 857     ;;
 858   mips*-dec-ultrix*)
 859     tentative_cc="cc -Wf,-XNg1000"
 860     host_makefile_frag="config/mh-decstation"
 861     ;;
 862   mips*-nec-sysv4*)
 863     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 864     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 865     host_makefile_frag="config/mh-necv4"
 866     ;;
 867   mips*-sgi-irix4*)
 868     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 869     # environment.  Also bump switch table size so that cp-parse will
 870     # compile.  Bump string length limit so linker builds.
 871     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 872     ;;
 873   mips*-*-sysv4*)
 874     host_makefile_frag="config/mh-sysv4"
 875     ;;
 876   mips*-*-sysv*)
 877     # This is for a MIPS running RISC/os 4.52C.
 878
 879     # This is needed for GDB, but needs to be in the top-level make because
 880     # if a library is compiled with the bsd headers and gets linked with the
 881     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 882     # a different size).
 883     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 884     # known except to select the sysv environment.  Could we use /proc instead?
 885     # These "sysv environments" and "bsd environments" often end up being a pain.
 886     #
 887     # This is not part of CFLAGS because perhaps not all C compilers have this
 888     # option.
 889     tentative_cc="cc -systype sysv"
 890     ;;
 891   i370-ibm-opened*)
 892     tentative_cc="c89"
 893     ;;
 894   i[[3456789]]86-*-sysv5*)
 895     host_makefile_frag="config/mh-sysv5"
 896     ;;
 897   i[[3456789]]86-*-dgux*)
 898     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 899     host_makefile_frag="config/mh-dgux386"
 900     ;;
 901   i[[3456789]]86-ncr-sysv4.3*)
 902     # The MetaWare compiler will generate a copyright message unless you
 903     # turn it off by adding the -Hnocopyr flag.
 904     tentative_cc="cc -Hnocopyr"
 905     ;;
 906   i[[3456789]]86-ncr-sysv4*)
 907     # for an NCR 3000 (i486/SVR4) system.
 908     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 909     # This compiler not only emits obnoxious copyright messages every time
 910     # you run it, but it chokes and dies on a whole bunch of GNU source
 911     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 912     tentative_cc="/usr/ccs/ATT/cc"
 913     host_makefile_frag="config/mh-ncr3000"
 914     ;;
 915   i[[3456789]]86-*-sco3.2v5*)
 916     ;;
 917   i[[3456789]]86-*-sco*)
 918     # The native C compiler botches some simple uses of const.  Unfortunately,
 919     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 920     tentative_cc="cc -Dconst="
 921     host_makefile_frag="config/mh-sco"
 922     ;;
 923   i[[3456789]]86-*-udk*)
 924     host_makefile_frag="config/mh-sysv5"
 925     ;;
 926   i[[3456789]]86-*-solaris2*)
 927     host_makefile_frag="config/mh-sysv4"
 928     ;;
 929   i[[3456789]]86-*-msdosdjgpp*)
 930     host_makefile_frag="config/mh-djgpp"
 931     ;;
 932   *-cygwin*)
 933     host_makefile_frag="config/mh-cygwin"
 934     ;;
 935   *-mingw32*)
 936     ;;
 937   *-interix*)
 938     host_makefile_frag="config/mh-interix"
 939     ;;
 940   vax-*-ultrix2*)
 941     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 942     tentative_cc=gcc
 943     ;;
 944   *-*-solaris2*)
 945     host_makefile_frag="config/mh-solaris"
 946     ;;
 947   m68k-sun-sunos*)
 948     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 949     # without overflowing the jump tables (-J says to use a 32 bit table)
 950     tentative_cc="cc -J"
 951     ;;
 952   *-hp-hpux*)
 953     tentative_cc="cc -Wp,-H256000"
 954     ;;
 955   *-*-hiux*)
 956     tentative_cc="cc -Wp,-H256000"
 957     ;;
 958   rs6000-*-lynxos*)
 959     # /bin/cc is less than useful for our purposes.  Always use GCC
 960     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 961     host_makefile_frag="config/mh-lynxrs6k"
 962     ;;
 963   powerpc-*-darwin*)
 964     host_makefile_frag="config/mh-ppc-darwin"
 965     ;;
 966   powerpc-*-aix*)
 967     host_makefile_frag="config/mh-ppc-aix"
 968     ;;
 969   rs6000-*-aix*)
 970     host_makefile_frag="config/mh-ppc-aix"
 971     ;;
 972   *-*-lynxos*)
 973     # /bin/cc is less than useful for our purposes.  Always use GCC
 974     tentative_cc="/bin/gcc"
 975     ;;
 976   *-*-sysv4*)
 977     host_makefile_frag="config/mh-sysv4"
 978     ;;
 979   # This is placed last to prevent interfering with the cases above.
 980   i[[3456789]]86-*-*)
 981     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 982     host_makefile_frag="config/mh-x86omitfp"
 983     ;;
 984 esac
 985 fi
 986
 987 # If we aren't going to be using gcc, see if we can extract a definition
 988 # of CC from the fragment.
 989 # Actually, use the 'pre-extracted' version above.
 990 if test -z "${CC}" && test "${build}" = "${host}" ; then
 991   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 992   found=
 993   for dir in $PATH; do
 994     test -z "$dir" && dir=.
 995     if test -f $dir/gcc; then
 996       found=yes
 997       break
 998     fi
 999   done
1000   IFS="$save_ifs"
1001   if test -z "${found}" && test -n "${tentative_cc}" ; then
1002     CC=$tentative_cc
1003   fi
1004 fi
1005
1006 if test "${build}" != "${host}" ; then
1007   # If we are doing a Canadian Cross, in which the host and build systems
1008   # are not the same, we set reasonable default values for the tools.
1009
1010   CC=${CC-${host_alias}-gcc}
1011   CFLAGS=${CFLAGS-"-g -O2"}
1012   CXX=${CXX-${host_alias}-c++}
1013   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1014   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1015
1016 else
1017   # Set reasonable default values for some tools even if not Canadian.
1018   # Of course, these are different reasonable default values, originally
1019   # specified directly in the Makefile.
1020   # We don't export, so that autoconf can do its job.
1021   # Note that all these settings are above the fragment inclusion point
1022   # in Makefile.in, so can still be overridden by fragments.
1023   # This is all going to change when we autoconfiscate...
1024
1025   CC_FOR_BUILD="\$(CC)"
1026   AC_PROG_CC
1027
1028   # We must set the default linker to the linker used by gcc for the correct
1029   # operation of libtool.  If LD is not defined and we are using gcc, try to
1030   # set the LD default to the ld used by gcc.
1031   if test -z "$LD"; then
1032     if test "$GCC" = yes; then
1033       case $build in
1034       *-*-mingw*)
1035         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1036       *)
1037         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1038       esac
1039       case $gcc_prog_ld in
1040       # Accept absolute paths.
1041       [[\\/]* | [A-Za-z]:[\\/]*)]
1042         LD="$gcc_prog_ld" ;;
1043       esac
1044     fi
1045   fi
1046
1047   CXX=${CXX-"c++"}
1048   CFLAGS=${CFLAGS-"-g"}
1049   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1050 fi
1051
1052 ACX_PROG_GNAT
1053 ACX_PROG_CMP_IGNORE_INITIAL
1054
1055 # Check for GMP and MPFR
1056 gmplibs="-lmpfr"
1057 gmpinc=
1058 have_gmp=yes
1059 # Specify a location for mpfr
1060 # check for this first so it ends up on the link line before gmp.
1061 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    This option has been REMOVED],
1062   AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1063 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH]))
1064
1065 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify prefix directory for installed MPFR package
1066                           Equivalent to --with-mpfr-include=PATH/include
1067                           plus --with-mpfr-lib=PATH/lib])
1068 AC_ARG_WITH(mpfr_include, [  --with-mpfr-include=PATH
1069                           Specify directory for installed MPFR include files])
1070 AC_ARG_WITH(mpfr_lib, [  --with-mpfr-lib=PATH    Specify the directory for the installed MPFR library])
1071
1072 if test "x$with_mpfr" != x; then
1073   gmplibs="-L$with_mpfr/lib $gmplibs"
1074   gmpinc="-I$with_mpfr/include"
1075 fi
1076 if test "x$with_mpfr_include" != x; then
1077   gmpinc="-I$with_mpfr_include"
1078 fi
1079 if test "x$with_mpfr_lib" != x; then
1080   gmplibs="-L$with_mpfr_lib $gmplibs"
1081 fi
1082
1083 # Specify a location for gmp
1084 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     This option has been REMOVED],
1085   AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1086 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH]))
1087
1088 gmplibs="$gmplibs -lgmp"
1089
1090 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify prefix directory for the installed GMP package
1091                           Equivalent to --with-gmp-include=PATH/include
1092                           plus --with-gmp-lib=PATH/lib])
1093 AC_ARG_WITH(gmp_include, [  --with-gmp-include=PATH Specify directory for installed GMP include files])
1094 AC_ARG_WITH(gmp_lib, [  --with-gmp-lib=PATH     Specify the directory for the installed GMP library])
1095
1096
1097 if test "x$with_gmp" != x; then
1098   gmplibs="-L$with_gmp/lib $gmplibs"
1099   gmpinc="-I$with_gmp/include $gmpinc"
1100 fi
1101 if test "x$with_gmp_include" != x; then
1102   gmpinc="-I$with_gmp_include $gmpinc"
1103 fi
1104 if test "x$with_gmp_lib" != x; then
1105   gmplibs="-L$with_gmp_lib $gmplibs"
1106 fi
1107
1108 saved_CFLAGS="$CFLAGS"
1109 CFLAGS="$CFLAGS $gmpinc"
1110 # Check GMP actually works
1111 AC_MSG_CHECKING([for correct version of gmp.h])
1112 AC_TRY_COMPILE([#include "gmp.h"],[
1113 #if __GNU_MP_VERSION < 4 || (__GNU_MP_VERSION == 4 && __GNU_MP_VERSION_MINOR < 1)
1114 choke me
1115 #endif
1116 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1117
1118 if test x"$have_gmp" = xyes; then
1119   saved_LIBS="$LIBS"
1120   LIBS="$LIBS $gmplibs"
1121   dnl MPFR 2.2.0 is acceptable but buggy, MPFR 2.2.1 is better.
1122   AC_MSG_CHECKING([for correct version of mpfr.h])
1123   AC_TRY_LINK([#include <gmp.h>
1124 #include <mpfr.h>],[
1125 #if MPFR_VERSION < MPFR_VERSION_NUM(2,2,0)
1126   choke me
1127 #endif
1128   mpfr_t n; mpfr_init(n);
1129 ], [AC_TRY_LINK([#include <gmp.h>
1130 #include <mpfr.h>],[
1131 #if MPFR_VERSION < MPFR_VERSION_NUM(2,2,1)
1132   choke me
1133 #endif
1134   mpfr_t n; mpfr_init(n);
1135 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1136    [AC_MSG_RESULT([no]); have_gmp=no])
1137   LIBS="$saved_LIBS"
1138 fi
1139 CFLAGS="$saved_CFLAGS"
1140
1141 if test -d ${srcdir}/gcc && test x$have_gmp != xyes; then
1142   AC_MSG_ERROR([Building GCC requires GMP 4.1+ and MPFR 2.2.1+.
1143 Try the --with-gmp and/or --with-mpfr options to specify their locations.
1144 Copies of these libraries' source code can be found at their respective
1145 hosting sites as well as at ftp://gcc.gnu.org/pub/gcc/infrastructure/.
1146 See also http://gcc.gnu.org/install/prerequisites.html for additional info.
1147 If you obtained GMP and/or MPFR from a vendor distribution package, make
1148 sure that you have installed both the libraries and the header files.
1149 They may be located in separate packages.])
1150 fi
1151
1152 # Flags needed for both GMP and/or MPFR
1153 AC_SUBST(gmplibs)
1154 AC_SUBST(gmpinc)
1155
1156 # By default, C is the only stage 1 language.
1157 stage1_languages=,c,
1158
1159 # Figure out what language subdirectories are present.
1160 # Look if the user specified --enable-languages="..."; if not, use
1161 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1162 # go away some day.
1163 # NB:  embedded tabs in this IF block -- do not untabify
1164 if test -d ${srcdir}/gcc; then
1165   if test x"${enable_languages+set}" != xset; then
1166     if test x"${LANGUAGES+set}" = xset; then
1167       enable_languages="${LANGUAGES}"
1168         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1169     else
1170       enable_languages=all
1171     fi
1172   else
1173     if test x"${enable_languages}" = x ||
1174        test x"${enable_languages}" = xyes;
1175        then
1176       echo configure.in: --enable-languages needs at least one language argument 1>&2
1177       exit 1
1178     fi
1179   fi
1180   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1181
1182   # 'f95' is the old name for the 'fortran' language. We issue a warning
1183   # and make the substitution.
1184   case ,${enable_languages}, in
1185     *,f95,*)
1186       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1187       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1188       ;;
1189   esac
1190
1191   # First scan to see if an enabled language requires some other language.
1192   # We assume that a given config-lang.in will list all the language
1193   # front ends it requires, even if some are required indirectly.
1194   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1195     case ${lang_frag} in
1196       ..) ;;
1197       # The odd quoting in the next line works around
1198       # an apparent bug in bash 1.12 on linux.
1199       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1200       *)
1201         # From the config-lang.in, get $language, $lang_requires
1202         language=
1203         lang_requires=
1204         . ${lang_frag}
1205         for other in ${lang_requires} ; do
1206           case ,${enable_languages}, in
1207             *,$other,*) ;;
1208             *,all,*) ;;
1209             *,$language,*)
1210               echo " \`$other' language required by \`$language'; enabling" 1>&2
1211               enable_languages="${enable_languages},${other}"
1212               ;;
1213           esac
1214         done
1215         ;;
1216     esac
1217   done
1218
1219   new_enable_languages=,c,
1220   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1221   potential_languages=,c,
1222
1223   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1224     case ${lang_frag} in
1225       ..) ;;
1226       # The odd quoting in the next line works around
1227       # an apparent bug in bash 1.12 on linux.
1228       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1229       *)
1230         # From the config-lang.in, get $language, $target_libs,
1231         # $lang_dirs, $boot_language, and $build_by_default
1232         language=
1233         target_libs=
1234         lang_dirs=
1235         subdir_requires=
1236         boot_language=no
1237         build_by_default=yes
1238         . ${lang_frag}
1239         if test x${language} = x; then
1240           echo "${lang_frag} doesn't set \$language." 1>&2
1241           exit 1
1242         fi
1243
1244         case ,${enable_languages}, in
1245           *,${language},*)
1246             # Language was explicitly selected; include it.
1247             add_this_lang=yes
1248             ;;
1249           *,all,*)
1250             # 'all' was selected, select it if it is a default language
1251             add_this_lang=${build_by_default}
1252             ;;
1253           *)
1254             add_this_lang=no
1255             ;;
1256         esac
1257
1258         # Disable languages that need other directories if these aren't available.
1259         for i in $subdir_requires; do
1260           test -f "$srcdir/gcc/$i/config-lang.in" && continue
1261           case ,${enable_languages}, in
1262             *,${language},*)
1263               # Specifically requested language; tell them.
1264               AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1265               ;;
1266             *)
1267               # Silently disable.
1268               add_this_lang=unsupported
1269               ;;
1270           esac
1271         done
1272
1273         # Disable Ada if no preexisting GNAT is available.
1274         case ,${enable_languages},:${language}:${have_gnat} in
1275           *,${language},*:ada:no)
1276             # Specifically requested language; tell them.
1277             AC_MSG_ERROR([GNAT is required to build $language])
1278             ;;
1279           *:ada:no)
1280             # Silently disable.
1281             add_this_lang=unsupported
1282             ;;
1283         esac
1284
1285         # Disable a language that is unsupported by the target.
1286         case " $unsupported_languages " in
1287           *" $language "*)
1288             add_this_lang=unsupported
1289             ;;
1290         esac
1291
1292         case $add_this_lang in
1293           unsupported)
1294             # Remove language-dependent dirs.
1295             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1296             ;;
1297           no)
1298             # Remove language-dependent dirs; still show language as supported.
1299             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1300             potential_languages="${potential_languages}${language},"
1301             ;;
1302           yes)
1303             new_enable_languages="${new_enable_languages}${language},"
1304             potential_languages="${potential_languages}${language},"
1305             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1306             case ${boot_language} in
1307               yes)
1308                 # Add to (comma-separated) list of stage 1 languages.
1309                 stage1_languages="${stage1_languages}${language},"
1310                 ;;
1311             esac
1312             ;;
1313         esac
1314         ;;
1315     esac
1316   done
1317
1318   AC_ARG_ENABLE(stage1-languages,
1319 [  --enable-stage1-languages[=all]   choose additional languages to build during
1320                           stage1.  Mostly useful for compiler development.],
1321   [case ,${enable_stage1_languages}, in
1322     ,no,|,,)
1323       # Set it to something that will have no effect in the loop below
1324       enable_stage1_languages=c ;;
1325     ,yes,)
1326       enable_stage1_languages=`echo $new_enable_languages | \
1327         sed -e "s/^,//" -e "s/,$//" ` ;;
1328     *,all,*)
1329       enable_stage1_languages=`echo ,$enable_stage1_languages, | \
1330         sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
1331   esac
1332
1333   # Add "good" languages from enable_stage1_languages to stage1_languages,
1334   # while "bad" languages go in missing_languages.  Leave no duplicates.
1335   for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
1336     case $potential_languages in
1337       *,$i,*)
1338         case $stage1_languages in
1339           *,$i,*) ;;
1340           *) stage1_languages="$stage1_languages$i," ;;
1341         esac ;;
1342       *)
1343         case $missing_languages in
1344           *,$i,*) ;;
1345           *) missing_languages="$missing_languages$i," ;;
1346         esac ;;
1347      esac
1348   done])
1349
1350   # Remove leading/trailing commas that were added for simplicity
1351   potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
1352   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1353   stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
1354   new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
1355
1356   if test "x$missing_languages" != x; then
1357     AC_MSG_ERROR([
1358 The following requested languages could not be built: ${missing_languages}
1359 Supported languages are: ${potential_languages}])
1360   fi
1361   if test "x$new_enable_languages" != "x$enable_languages"; then
1362     echo The following languages will be built: ${new_enable_languages}
1363     enable_languages="$new_enable_languages"
1364   fi
1365
1366   AC_SUBST(stage1_languages)
1367   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1368 fi
1369
1370 # Handle --disable-<component> generically.
1371 for dir in $configdirs $build_configdirs $target_configdirs ; do
1372   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1373   if eval test x\${enable_${dirname}} "=" xno ; then
1374     noconfigdirs="$noconfigdirs $dir"
1375   fi
1376 done
1377
1378 # Check for Boehm's garbage collector
1379 AC_ARG_ENABLE(objc-gc,
1380 [  --enable-objc-gc       enable the use of Boehm's garbage collector with
1381                           the GNU Objective-C runtime.],
1382 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
1383   *,objc,*:*:yes:*target-boehm-gc*)
1384     AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
1385     ;;
1386 esac])
1387
1388 # Make sure we only build Boehm's garbage collector if required.
1389 case ,${enable_languages},:${enable_objc_gc} in
1390   *,objc,*:yes)
1391     # Keep target-boehm-gc if requested for Objective-C.
1392     ;;
1393   *)
1394     # Otherwise remove target-boehm-gc depending on target-libjava.
1395     if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
1396       noconfigdirs="$noconfigdirs target-boehm-gc"
1397     fi
1398     ;;
1399 esac
1400
1401 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1402 # $build_configdirs and $target_configdirs.
1403 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1404
1405 notsupp=""
1406 for dir in . $skipdirs $noconfigdirs ; do
1407   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1408   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1409     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1410     if test -r $srcdir/$dirname/configure ; then
1411       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1412         true
1413       else
1414         notsupp="$notsupp $dir"
1415       fi
1416     fi
1417   fi
1418   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1419     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1420     if test -r $srcdir/$dirname/configure ; then
1421       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1422         true
1423       else
1424         notsupp="$notsupp $dir"
1425       fi
1426     fi
1427   fi
1428   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1429     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1430     if test -r $srcdir/$dirname/configure ; then
1431       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1432         true
1433       else
1434         notsupp="$notsupp $dir"
1435       fi
1436     fi
1437   fi
1438 done
1439
1440 # Sometimes the tools are distributed with libiberty but with no other
1441 # libraries.  In that case, we don't want to build target-libiberty.
1442 if test -n "${target_configdirs}" ; then
1443   others=
1444   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1445     if test "$i" != "libiberty" ; then
1446       if test -r $srcdir/$i/configure ; then
1447         others=yes;
1448         break;
1449       fi
1450     fi
1451   done
1452   if test -z "${others}" ; then
1453     target_configdirs=
1454   fi
1455 fi
1456
1457 # Quietly strip out all directories which aren't configurable in this tree.
1458 # This relies on all configurable subdirectories being autoconfiscated, which
1459 # is now the case.
1460 build_configdirs_all="$build_configdirs"
1461 build_configdirs=
1462 for i in ${build_configdirs_all} ; do
1463   j=`echo $i | sed -e s/build-//g`
1464   if test -f ${srcdir}/$j/configure ; then
1465     build_configdirs="${build_configdirs} $i"
1466   fi
1467 done
1468
1469 configdirs_all="$configdirs"
1470 configdirs=
1471 for i in ${configdirs_all} ; do
1472   if test -f ${srcdir}/$i/configure ; then
1473     configdirs="${configdirs} $i"
1474   fi
1475 done
1476
1477 target_configdirs_all="$target_configdirs"
1478 target_configdirs=
1479 for i in ${target_configdirs_all} ; do
1480   j=`echo $i | sed -e s/target-//g`
1481   if test -f ${srcdir}/$j/configure ; then
1482     target_configdirs="${target_configdirs} $i"
1483   fi
1484 done
1485
1486 # Produce a warning message for the subdirs we can't configure.
1487 # This isn't especially interesting in the Cygnus tree, but in the individual
1488 # FSF releases, it's important to let people know when their machine isn't
1489 # supported by the one or two programs in a package.
1490
1491 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1492   # If $appdirs is non-empty, at least one of those directories must still
1493   # be configured, or we error out.  (E.g., if the gas release supports a
1494   # specified target in some subdirs but not the gas subdir, we shouldn't
1495   # pretend that all is well.)
1496   if test -n "$appdirs" ; then
1497     for dir in $appdirs ; do
1498       if test -r $dir/Makefile.in ; then
1499         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1500           appdirs=""
1501           break
1502         fi
1503         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1504           appdirs=""
1505           break
1506         fi
1507       fi
1508     done
1509     if test -n "$appdirs" ; then
1510       echo "*** This configuration is not supported by this package." 1>&2
1511       exit 1
1512     fi
1513   fi
1514   # Okay, some application will build, or we don't care to check.  Still
1515   # notify of subdirs not getting built.
1516   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1517   echo "    ${notsupp}" 1>&2
1518   echo "    (Any other directories should still work fine.)" 1>&2
1519 fi
1520
1521 case "$host" in
1522   *msdosdjgpp*)
1523     enable_gdbtk=no ;;
1524 esac
1525
1526 copy_dirs=
1527
1528 AC_ARG_WITH([build-sysroot],
1529   [  --with-build-sysroot=sysroot
1530                           use sysroot as the system root during the build],
1531   [if test x"$withval" != x ; then
1532      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1533    fi],
1534   [SYSROOT_CFLAGS_FOR_TARGET=])
1535 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1536
1537 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1538 # the named directory are copied to $(tooldir)/sys-include.
1539 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1540   if test x${is_cross_compiler} = xno ; then
1541     echo 1>&2 '***' --with-headers is only supported when cross compiling
1542     exit 1
1543   fi
1544   if test x"${with_headers}" != xyes ; then
1545     case "${exec_prefixoption}" in
1546     "") x=${prefix} ;;
1547     *) x=${exec_prefix} ;;
1548     esac
1549     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1550   fi
1551 fi
1552
1553 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1554 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1555 # are permitted.
1556 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1557   if test x${is_cross_compiler} = xno ; then
1558     echo 1>&2 '***' --with-libs is only supported when cross compiling
1559     exit 1
1560   fi
1561   if test x"${with_libs}" != xyes ; then
1562     # Copy the libraries in reverse order, so that files in the first named
1563     # library override files in subsequent libraries.
1564     case "${exec_prefixoption}" in
1565     "") x=${prefix} ;;
1566     *) x=${exec_prefix} ;;
1567     esac
1568     for l in ${with_libs}; do
1569       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1570     done
1571   fi
1572 fi
1573
1574 # Set with_gnu_as and with_gnu_ld as appropriate.
1575 #
1576 # This is done by determining whether or not the appropriate directory
1577 # is available, and by checking whether or not specific configurations
1578 # have requested that this magic not happen.
1579 #
1580 # The command line options always override the explicit settings in
1581 # configure.in, and the settings in configure.in override this magic.
1582 #
1583 # If the default for a toolchain is to use GNU as and ld, and you don't
1584 # want to do that, then you should use the --without-gnu-as and
1585 # --without-gnu-ld options for the configure script.
1586
1587 if test x${use_gnu_as} = x &&
1588    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1589   with_gnu_as=yes
1590   extra_host_args="$extra_host_args --with-gnu-as"
1591 fi
1592
1593 if test x${use_gnu_ld} = x &&
1594    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1595   with_gnu_ld=yes
1596   extra_host_args="$extra_host_args --with-gnu-ld"
1597 fi
1598
1599 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1600 # can detect this case.
1601
1602 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1603   with_newlib=yes
1604   extra_host_args="$extra_host_args --with-newlib"
1605 fi
1606
1607 # Handle ${copy_dirs}
1608 set fnord ${copy_dirs}
1609 shift
1610 while test $# != 0 ; do
1611   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1612     :
1613   else
1614     echo Copying $1 to $2
1615
1616     # Use the install script to create the directory and all required
1617     # parent directories.
1618     if test -d $2 ; then
1619       :
1620     else
1621       echo >config.temp
1622       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1623     fi
1624
1625     # Copy the directory, assuming we have tar.
1626     # FIXME: Should we use B in the second tar?  Not all systems support it.
1627     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1628
1629     # It is the responsibility of the user to correctly adjust all
1630     # symlinks.  If somebody can figure out how to handle them correctly
1631     # here, feel free to add the code.
1632
1633     echo $1 > $2/COPIED
1634   fi
1635   shift; shift
1636 done
1637
1638 # Determine a target-dependent exec_prefix that the installed
1639 # gcc will search in.  Keep this list sorted by triplet, with
1640 # the *-*-osname triplets last.
1641 md_exec_prefix=
1642 case "${target}" in
1643   alpha*-*-*vms*)
1644     md_exec_prefix=/gnu/lib/gcc-lib
1645     ;;
1646   i[34567]86-pc-msdosdjgpp*)
1647     md_exec_prefix=/dev/env/DJDIR/bin
1648     ;;
1649   i[34567]86-*-sco3.2v5*)
1650     if test $with_gnu_as = yes; then
1651       md_exec_prefix=/usr/gnu/bin
1652     else
1653       md_exec_prefix=/usr/ccs/bin/elf
1654     fi
1655     ;;
1656
1657   mn10300-*-* | \
1658   powerpc-*-chorusos* | \
1659   powerpc*-*-eabi* | \
1660   powerpc*-*-sysv* | \
1661   powerpc*-*-kaos* | \
1662   s390x-ibm-tpf*)
1663     md_exec_prefix=/usr/ccs/bin
1664     ;;
1665   sparc64-*-elf*)
1666     ;;
1667   v850*-*-*)
1668     md_exec_prefix=/usr/ccs/bin
1669     ;;
1670   xtensa-*-elf*)
1671     ;;
1672
1673   *-*-beos* | \
1674   *-*-elf* | \
1675   *-*-hpux* | \
1676   *-*-netware* | \
1677   *-*-nto-qnx* | \
1678   *-*-rtems* | \
1679   *-*-solaris2* | \
1680   *-*-sysv[45]* | \
1681   *-*-vxworks* | \
1682   *-wrs-windiss)
1683     md_exec_prefix=/usr/ccs/bin
1684     ;;
1685 esac
1686
1687 extra_arflags_for_target=
1688 extra_nmflags_for_target=
1689 extra_ranlibflags_for_target=
1690 target_makefile_frag=/dev/null
1691 case "${target}" in
1692   spu-*-*)
1693     target_makefile_frag="config/mt-spu"
1694     ;;
1695   *-*-netware*)
1696     target_makefile_frag="config/mt-netware"
1697     ;;
1698   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1699     target_makefile_frag="config/mt-gnu"
1700     ;;
1701   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1702     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1703     # commands to handle both 32-bit and 64-bit objects.  These flags are
1704     # harmless if we're using GNU nm or ar.
1705     extra_arflags_for_target=" -X32_64"
1706     extra_nmflags_for_target=" -B -X32_64"
1707     ;;
1708   *-*-darwin*)
1709     # ranlib from Darwin requires the -c flag to look at common symbols.
1710     extra_ranlibflags_for_target=" -c"
1711     ;;
1712   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1713     target_makefile_frag="config/mt-wince"
1714     ;;
1715 esac
1716
1717 alphaieee_frag=/dev/null
1718 case $target in
1719   alpha*-*-*)
1720     # This just makes sure to use the -mieee option to build target libs.
1721     # This should probably be set individually by each library.
1722     alphaieee_frag="config/mt-alphaieee"
1723     ;;
1724 esac
1725
1726 # If --enable-target-optspace always use -Os instead of -O2 to build
1727 # the target libraries, similarly if it is not specified, use -Os
1728 # on selected platforms.
1729 ospace_frag=/dev/null
1730 case "${enable_target_optspace}:${target}" in
1731   yes:*)
1732     ospace_frag="config/mt-ospace"
1733     ;;
1734   :d30v-*)
1735     ospace_frag="config/mt-d30v"
1736     ;;
1737   :m32r-* | :d10v-* | :fr30-*)
1738     ospace_frag="config/mt-ospace"
1739     ;;
1740   no:* | :*)
1741     ;;
1742   *)
1743     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1744     ;;
1745 esac
1746
1747 # Default to using --with-stabs for certain targets.
1748 if test x${with_stabs} = x ; then
1749   case "${target}" in
1750   mips*-*-irix[[56]]*)
1751     ;;
1752   mips*-*-* | alpha*-*-osf*)
1753     with_stabs=yes;
1754     extra_host_args="${extra_host_args} --with-stabs"
1755     ;;
1756   esac
1757 fi
1758
1759 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1760 # them automatically.
1761 case "${host}" in
1762   hppa*64*-*-hpux11*)
1763     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1764     ;;
1765 esac
1766
1767 # Some systems (e.g., one of the i386-aix systems the gas testers are
1768 # using) don't handle "\$" correctly, so don't use it here.
1769 tooldir='${exec_prefix}'/${target_alias}
1770 build_tooldir=${tooldir}
1771
1772 # Create a .gdbinit file which runs the one in srcdir
1773 # and tells GDB to look there for source files.
1774
1775 if test -r ${srcdir}/.gdbinit ; then
1776   case ${srcdir} in
1777     .) ;;
1778     *) cat > ./.gdbinit <<EOF
1779 # ${NO_EDIT}
1780 dir ${srcdir}
1781 dir .
1782 source ${srcdir}/.gdbinit
1783 EOF
1784     ;;
1785   esac
1786 fi
1787
1788 # Make sure that the compiler is able to generate an executable.  If it
1789 # can't, we are probably in trouble.  We don't care whether we can run the
1790 # executable--we might be using a cross compiler--we only care whether it
1791 # can be created.  At this point the main configure script has set CC.
1792 we_are_ok=no
1793 echo "int main () { return 0; }" > conftest.c
1794 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1795 if test $? = 0 ; then
1796   if test -s conftest || test -s conftest.exe ; then
1797     we_are_ok=yes
1798   fi
1799 fi
1800 case $we_are_ok in
1801   no)
1802     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1803     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1804     rm -f conftest*
1805     exit 1
1806     ;;
1807 esac
1808 rm -f conftest*
1809
1810 # The Solaris /usr/ucb/cc compiler does not appear to work.
1811 case "${host}" in
1812   sparc-sun-solaris2*)
1813       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1814       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1815           could_use=
1816           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1817           if test -d /opt/cygnus/bin ; then
1818               if test "$could_use" = "" ; then
1819                   could_use="/opt/cygnus/bin"
1820               else
1821                   could_use="$could_use or /opt/cygnus/bin"
1822               fi
1823           fi
1824         if test "$could_use" = "" ; then
1825             echo "Warning: compilation may fail because you're using"
1826             echo "/usr/ucb/cc.  You should change your PATH or CC "
1827             echo "variable and rerun configure."
1828         else
1829             echo "Warning: compilation may fail because you're using"
1830             echo "/usr/ucb/cc, when you should use the C compiler from"
1831             echo "$could_use.  You should change your"
1832             echo "PATH or CC variable and rerun configure."
1833         fi
1834       fi
1835   ;;
1836 esac
1837
1838 case "${host}" in
1839   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1840   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1841   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1842 esac
1843
1844 # Record target_configdirs and the configure arguments for target and
1845 # build configuration in Makefile.
1846 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1847 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1848
1849 # Determine whether gdb needs tk/tcl or not.
1850 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1851 # and in that case we want gdb to be built without tk.  Ugh!
1852 # In fact I believe gdb is the *only* package directly dependent on tk,
1853 # so we should be able to put the 'maybe's in unconditionally and
1854 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1855 # 100% sure that that's safe though.
1856
1857 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1858 case "$enable_gdbtk" in
1859   no)
1860     GDB_TK="" ;;
1861   yes)
1862     GDB_TK="${gdb_tk}" ;;
1863   *)
1864     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1865     # distro.  Eventually someone will fix this and move Insight, nee
1866     # gdbtk to a separate directory.
1867     if test -d ${srcdir}/gdb/gdbtk ; then
1868       GDB_TK="${gdb_tk}"
1869     else
1870       GDB_TK=""
1871     fi
1872     ;;
1873 esac
1874 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1875 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1876
1877 # Strip out unwanted targets.
1878
1879 # While at that, we remove Makefiles if we were started for recursive
1880 # configuration, so that the top-level Makefile reconfigures them,
1881 # like we used to do when configure itself was recursive.
1882
1883 # Loop over modules.  $extrasub must be used with care, limiting as
1884 # much as possible the usage of range addresses.  That's because autoconf
1885 # splits the sed script to overcome limits in the number of commands,
1886 # and relying on carefully-timed sed passes may turn out to be very hard
1887 # to maintain later.  In this particular case, you just have to be careful
1888 # not to nest @if/@endif pairs, because configure will not warn you at all.
1889
1890 AC_ARG_ENABLE([bootstrap],
1891 [  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1892 enable_bootstrap=default)
1893
1894 # Issue errors and warnings for invalid/strange bootstrap combinations.
1895 case "$configdirs" in
1896   *gcc*) have_compiler=yes ;;
1897   *) have_compiler=no ;;
1898 esac
1899
1900 case "$have_compiler:$host:$target:$enable_bootstrap" in
1901   *:*:*:no) ;;
1902
1903   # Default behavior.  Enable bootstrap if we have a compiler
1904   # and we are in a native configuration.
1905   yes:$build:$build:default)
1906     enable_bootstrap=yes ;;
1907
1908   *:*:*:default)
1909     enable_bootstrap=no ;;
1910
1911   # We have a compiler and we are in a native configuration, bootstrap is ok
1912   yes:$build:$build:yes)
1913     ;;
1914
1915   # Other configurations, but we have a compiler.  Assume the user knows
1916   # what he's doing.
1917   yes:*:*:yes)
1918     AC_MSG_WARN([trying to bootstrap a cross compiler])
1919     ;;
1920
1921   # No compiler: if they passed --enable-bootstrap explicitly, fail
1922   no:*:*:yes)
1923     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1924
1925   # Fail if wrong command line
1926   *)
1927     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1928     ;;
1929 esac
1930
1931 # Adjust the toplevel makefile according to whether bootstrap was selected.
1932 case "$enable_bootstrap" in
1933   yes)
1934     bootstrap_suffix=bootstrap ;;
1935   no)
1936     bootstrap_suffix=no-bootstrap ;;
1937 esac
1938
1939 for module in ${build_configdirs} ; do
1940   if test -z "${no_recursion}" \
1941      && test -f ${build_subdir}/${module}/Makefile; then
1942     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1943     rm -f ${build_subdir}/${module}/Makefile
1944   fi
1945   extrasub="$extrasub
1946 /^@if build-$module\$/d
1947 /^@endif build-$module\$/d
1948 /^@if build-$module-$bootstrap_suffix\$/d
1949 /^@endif build-$module-$bootstrap_suffix\$/d"
1950 done
1951 for module in ${configdirs} ; do
1952   if test -z "${no_recursion}"; then
1953     for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
1954       if test -f ${file}; then
1955         echo 1>&2 "*** removing ${file} to force reconfigure"
1956         rm -f ${file}
1957       fi
1958     done
1959   fi
1960   extrasub="$extrasub
1961 /^@if $module\$/d
1962 /^@endif $module\$/d
1963 /^@if $module-$bootstrap_suffix\$/d
1964 /^@endif $module-$bootstrap_suffix\$/d"
1965 done
1966 for module in ${target_configdirs} ; do
1967   if test -z "${no_recursion}" \
1968      && test -f ${target_subdir}/${module}/Makefile; then
1969     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1970     rm -f ${target_subdir}/${module}/Makefile
1971   fi
1972   extrasub="$extrasub
1973 /^@if target-$module\$/d
1974 /^@endif target-$module\$/d
1975 /^@if target-$module-$bootstrap_suffix\$/d
1976 /^@endif target-$module-$bootstrap_suffix\$/d"
1977 done
1978
1979 extrasub="$extrasub
1980 /^@if /,/^@endif /d"
1981
1982 # Create the serialization dependencies.  This uses a temporary file.
1983
1984 AC_ARG_ENABLE([serial-configure],
1985 [  --enable-serial-[{host,target,build}-]configure
1986                           Force sequential configuration of
1987                           sub-packages for the host, target or build
1988                           machine, or all sub-packages])
1989
1990 case ${enable_serial_configure} in
1991   yes)
1992     enable_serial_build_configure=yes
1993     enable_serial_host_configure=yes
1994     enable_serial_target_configure=yes
1995     ;;
1996 esac
1997
1998 # These force 'configure's to be done one at a time, to avoid problems
1999 # with contention over a shared config.cache.
2000 rm -f serdep.tmp
2001 echo '# serdep.tmp' > serdep.tmp
2002 olditem=
2003 test "x${enable_serial_build_configure}" = xyes &&
2004 for item in ${build_configdirs} ; do
2005   case ${olditem} in
2006     "") ;;
2007     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2008   esac
2009   olditem=${item}
2010 done
2011 olditem=
2012 test "x${enable_serial_host_configure}" = xyes &&
2013 for item in ${configdirs} ; do
2014   case ${olditem} in
2015     "") ;;
2016     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2017   esac
2018   olditem=${item}
2019 done
2020 olditem=
2021 test "x${enable_serial_target_configure}" = xyes &&
2022 for item in ${target_configdirs} ; do
2023   case ${olditem} in
2024     "") ;;
2025     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2026   esac
2027   olditem=${item}
2028 done
2029 serialization_dependencies=serdep.tmp
2030 AC_SUBST_FILE(serialization_dependencies)
2031
2032 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
2033 # target and nonopt.  These are the ones we might not want to pass
2034 # down to subconfigures.  Also strip program-prefix, program-suffix,
2035 # and program-transform-name, so that we can pass down a consistent
2036 # program-transform-name.  If autoconf has put single quotes around
2037 # any of these arguments (because they contain shell metacharacters)
2038 # then this will fail; in practice this only happens for
2039 # --program-transform-name, so be sure to override --program-transform-name
2040 # at the end of the argument list.
2041 # These will be expanded by make, so quote '$'.
2042 cat <<\EOF_SED > conftestsed
2043 s/ --no[[^ ]]*/ /g
2044 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
2045 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
2046 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
2047 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
2048 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
2049 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
2050 s/ -cache-file[[= ]][[^ ]]*//g
2051 s/ -srcdir[[= ]][[^ ]]*//g
2052 s/ -host[[= ]][[^ ]]*//g
2053 s/ -build[[= ]][[^ ]]*//g
2054 s/ -target[[= ]][[^ ]]*//g
2055 s/ -program-prefix[[= ]][[^ ]]*//g
2056 s/ -program-suffix[[= ]][[^ ]]*//g
2057 s/ -program-transform-name[[= ]][[^ ]]*//g
2058 s/ [[^' -][^ ]*] / /
2059 s/^ *//;s/ *$//
2060 s,\$,$$,g
2061 EOF_SED
2062 sed -f conftestsed <<EOF_SED > conftestsed.out
2063  ${ac_configure_args}
2064 EOF_SED
2065 baseargs=`cat conftestsed.out`
2066 rm -f conftestsed conftestsed.out
2067
2068 # Add in --program-transform-name, after --program-prefix and
2069 # --program-suffix have been applied to it.  Autoconf has already
2070 # doubled dollar signs and backslashes in program_transform_name; we want
2071 # the backslashes un-doubled, and then the entire thing wrapped in single
2072 # quotes, because this will be expanded first by make and then by the shell.
2073 # Also, because we want to override the logic in subdir configure scripts to
2074 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2075 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2076 ${program_transform_name}
2077 EOF_SED
2078 gcc_transform_name=`cat conftestsed.out`
2079 rm -f conftestsed.out
2080 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2081
2082 # For the build-side libraries, we just need to pretend we're native,
2083 # and not use the same cache file.  Multilibs are neither needed nor
2084 # desired.
2085 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
2086
2087 # For host modules, accept cache file option, or specification as blank.
2088 case "${cache_file}" in
2089 "") # empty
2090   cache_file_option="" ;;
2091 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2092   cache_file_option="--cache-file=${cache_file}" ;;
2093 *) # relative path
2094   cache_file_option="--cache-file=../${cache_file}" ;;
2095 esac
2096
2097 # Host dirs don't like to share a cache file either, horribly enough.
2098 # This seems to be due to autoconf 2.5x stupidity.
2099 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
2100
2101 target_configargs=${baseargs}
2102
2103 # Passing a --with-cross-host argument lets the target libraries know
2104 # whether they are being built with a cross-compiler or being built
2105 # native.  However, it would be better to use other mechanisms to make the
2106 # sorts of decisions they want to make on this basis.  Please consider
2107 # this option to be deprecated.  FIXME.
2108 if test x${is_cross_compiler} = xyes ; then
2109   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
2110 fi
2111
2112 # Default to --enable-multilib.
2113 if test x${enable_multilib} = x ; then
2114   target_configargs="--enable-multilib ${target_configargs}"
2115 fi
2116
2117 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2118 # changed from the earlier setting of with_newlib.
2119 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2120   target_configargs="--with-newlib ${target_configargs}"
2121 fi
2122
2123 # Different target subdirs use different values of certain variables
2124 # (notably CXX).  Worse, multilibs use *lots* of different values.
2125 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2126 # it doesn't automatically accept command-line overrides of them.
2127 # This means it's not safe for target subdirs to share a cache file,
2128 # which is disgusting, but there you have it.  Hopefully this can be
2129 # fixed in future.  It's still worthwhile to use a cache file for each
2130 # directory.  I think.
2131
2132 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2133 # We need to pass --target, as newer autoconf's requires consistency
2134 # for target_alias and gcc doesn't manage it consistently.
2135 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
2136
2137 FLAGS_FOR_TARGET=
2138 case " $target_configdirs " in
2139  *" newlib "*)
2140   case " $target_configargs " in
2141   *" --with-newlib "*)
2142    case "$target" in
2143    *-cygwin*)
2144      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' ;;
2145    esac
2146
2147    # If we're not building GCC, don't discard standard headers.
2148    if test -d ${srcdir}/gcc; then
2149      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2150
2151      if test "${build}" != "${host}"; then
2152        # On Canadian crosses, CC_FOR_TARGET will have already been set
2153        # by `configure', so we won't have an opportunity to add -Bgcc/
2154        # to it.  This is right: we don't want to search that directory
2155        # for binaries, but we want the header files in there, so add
2156        # them explicitly.
2157        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2158
2159        # Someone might think of using the pre-installed headers on
2160        # Canadian crosses, in case the installed compiler is not fully
2161        # compatible with the compiler being built.  In this case, it
2162        # would be better to flag an error than risking having
2163        # incompatible object files being constructed.  We can't
2164        # guarantee that an error will be flagged, but let's hope the
2165        # compiler will do it, when presented with incompatible header
2166        # files.
2167      fi
2168    fi
2169
2170    case "${target}-${is_cross_compiler}" in
2171    i[[3456789]]86-*-linux*-no)
2172       # Here host == target, so we don't need to build gcc,
2173       # so we don't want to discard standard headers.
2174       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2175       ;;
2176    *)
2177       # If we're building newlib, use its generic headers last, but search
2178       # for any libc-related directories first (so make it the last -B
2179       # switch).
2180       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2181       ;;
2182    esac
2183    ;;
2184   esac
2185   ;;
2186 esac
2187 case "$target" in
2188 *-mingw*)
2189   # Can't be handled as Cygwin above since Mingw does not use newlib.
2190   FLAGS_FOR_TARGET=$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' ;;
2191 esac
2192
2193 # Allow the user to override the flags for
2194 # our build compiler if desired.
2195 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2196
2197 # On Canadian crosses, we'll be searching the right directories for
2198 # the previously-installed cross compiler, so don't bother to add
2199 # flags for directories within the install tree of the compiler
2200 # being built; programs in there won't even run.
2201 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2202   # Search for pre-installed headers if nothing else fits.
2203   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2204 fi
2205
2206 if test "x${use_gnu_ld}" = x &&
2207    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2208   # Arrange for us to find uninstalled linker scripts.
2209   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2210 fi
2211
2212 # Search for other target-specific linker scripts and such.
2213 case "${target}" in
2214   m32c-*-* )
2215     if test -d ${srcdir}/libgloss/m32c; then
2216       # This is for crt0.o
2217       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2218       # This is for r8c.ld
2219       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2220       # This is for libnosys.a
2221       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2222     fi
2223     ;;
2224 esac
2225
2226 # Makefile fragments.
2227 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2228 do
2229   eval fragval=\$$frag
2230   if test $fragval != /dev/null; then
2231     eval $frag=${srcdir}/$fragval
2232   fi
2233 done
2234 AC_SUBST_FILE(host_makefile_frag)
2235 AC_SUBST_FILE(target_makefile_frag)
2236 AC_SUBST_FILE(alphaieee_frag)
2237 AC_SUBST_FILE(ospace_frag)
2238
2239 # Miscellanea: directories, flags, etc.
2240 AC_SUBST(RPATH_ENVVAR)
2241 AC_SUBST(tooldir)
2242 AC_SUBST(build_tooldir)
2243 AC_SUBST(CONFIGURE_GDB_TK)
2244 AC_SUBST(GDB_TK)
2245 AC_SUBST(INSTALL_GDB_TK)
2246
2247 # Build module lists & subconfigure args.
2248 AC_SUBST(build_configargs)
2249 AC_SUBST(build_configdirs)
2250
2251 # Host module lists & subconfigure args.
2252 AC_SUBST(host_configargs)
2253 AC_SUBST(configdirs)
2254
2255 # Target module lists & subconfigure args.
2256 AC_SUBST(target_configargs)
2257
2258
2259 # Build tools.
2260 AC_SUBST(CC_FOR_BUILD)
2261 AC_SUBST(config_shell)
2262
2263 # Generate default definitions for YACC, M4, LEX and other programs that run
2264 # on the build machine.  These are used if the Makefile can't locate these
2265 # programs in objdir.
2266 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2267
2268 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2269 case " $build_configdirs " in
2270   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2271   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2272 esac
2273
2274 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2275 case " $build_configdirs " in
2276   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2277 esac
2278
2279 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2280 case " $build_configdirs " in
2281   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2282 esac
2283
2284 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2285 case " $build_configdirs " in
2286   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2287   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2288 esac
2289
2290 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2291 case " $build_configdirs " in
2292   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2293 esac
2294
2295 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2296 case " $build_configdirs " in
2297   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2298   *)
2299 changequote(,)
2300     # For an installed makeinfo, we require it to be from texinfo 4.4 or
2301     # higher, else we use the "missing" dummy.
2302     if ${MAKEINFO} --version \
2303        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[4-9]|[5-9])' >/dev/null 2>&1; then
2304       :
2305     else
2306       MAKEINFO="$MISSING makeinfo"
2307     fi
2308     ;;
2309 changequote([,])
2310 esac
2311
2312 # FIXME: expect and dejagnu may become build tools?
2313
2314 AC_CHECK_PROGS(EXPECT, expect, expect)
2315 case " $configdirs " in
2316   *" expect "*)
2317     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2318     ;;
2319 esac
2320
2321 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2322 case " $configdirs " in
2323   *" dejagnu "*)
2324     test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2325     ;;
2326 esac
2327
2328
2329 # Host tools.
2330 NCN_STRICT_CHECK_TOOLS(AR, ar)
2331 NCN_STRICT_CHECK_TOOLS(AS, as)
2332 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2333 NCN_STRICT_CHECK_TOOLS(LD, ld)
2334 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2335 NCN_STRICT_CHECK_TOOLS(NM, nm)
2336 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2337 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2338 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2339 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2340 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2341 AC_SUBST(CC)
2342 AC_SUBST(CXX)
2343 AC_SUBST(CFLAGS)
2344 AC_SUBST(CFLAGS_FOR_BUILD)
2345 AC_SUBST(CXXFLAGS)
2346
2347 # Target tools.
2348 AC_ARG_WITH([build-time-tools],
2349   [  --with-build-time-tools=path
2350                           use given path to find target tools during the build],
2351   [case x"$withval" in
2352      x/*) ;;
2353      *)
2354        with_build_time_tools=
2355        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2356        ;;
2357    esac],
2358   [with_build_time_tools=])
2359
2360 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2361 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2362 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2363 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2364 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2365
2366 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2367 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2368 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2369 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2370 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2371 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2372 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2373 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2374 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2375 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2376
2377 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2378
2379 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2380 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2381 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2382 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2383                 [gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `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],
2384                 c++)
2385 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2386                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2387                 c++)
2388 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2389 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2390 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2391                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2392 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2393                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2394 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2395 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2396 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2397 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2398 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2399 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2400 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2401
2402 AC_SUBST(FLAGS_FOR_TARGET)
2403 AC_SUBST(RAW_CXX_FOR_TARGET)
2404
2405 # Certain tools may need extra flags.
2406 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2407 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2408 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2409
2410 # When building target libraries, except in a Canadian cross, we use
2411 # the same toolchain as the compiler we just built.
2412 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2413 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2414 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2415 if test $host = $build; then
2416   case " $configdirs " in
2417     *" gcc "*)
2418       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2419       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2420       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2421       ;;
2422   esac
2423 fi
2424
2425 AC_SUBST(COMPILER_AS_FOR_TARGET)
2426 AC_SUBST(COMPILER_LD_FOR_TARGET)
2427 AC_SUBST(COMPILER_NM_FOR_TARGET)
2428
2429 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2430 AC_ARG_ENABLE(maintainer-mode,
2431 [  --enable-maintainer-mode enable make rules and dependencies not useful
2432                           (and sometimes confusing) to the casual installer],
2433       USE_MAINTAINER_MODE=$enableval,
2434       USE_MAINTAINER_MODE=no)
2435 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2436 AC_SUBST(MAINTAINER_MODE_TRUE)
2437 AC_SUBST(MAINTAINER_MODE_FALSE)
2438 if test "$USE_MAINTAINER_MODE" = yes; then
2439   MAINTAINER_MODE_TRUE=
2440   MAINTAINER_MODE_FALSE='#'
2441 else
2442   MAINTAINER_MODE_TRUE='#'
2443   MAINTAINER_MODE_FALSE=
2444 fi
2445 MAINT=$MAINTAINER_MODE_TRUE
2446 AC_SUBST(MAINT)dnl
2447
2448 # ---------------------
2449 # GCC bootstrap support
2450 # ---------------------
2451
2452 # Stage specific cflags for build.
2453 stage1_cflags="-g"
2454 case $build in
2455   vax-*-*)
2456     case ${GCC} in
2457       yes) stage1_cflags="-g -Wa,-J" ;;
2458       *) stage1_cflags="-g -J" ;;
2459     esac ;;
2460 esac
2461
2462 # This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
2463 if test "$GCC" = yes; then
2464   saved_CFLAGS="$CFLAGS"
2465
2466   # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
2467   CFLAGS="$CFLAGS -fkeep-inline-functions"
2468   AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
2469   AC_TRY_COMPILE(,,
2470     [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
2471     [AC_MSG_RESULT([no])])
2472
2473   CFLAGS="$saved_CFLAGS"
2474 fi
2475
2476 AC_SUBST(stage1_cflags)
2477
2478 # Enable --enable-checking in stage1 of the compiler.
2479 AC_ARG_ENABLE(stage1-checking,
2480 [  --enable-stage1-checking[=all]   choose additional checking for stage1
2481                           of the compiler.],
2482 [stage1_checking=--enable-checking=${enable_stage1_checking}],
2483 [if test "x$enable_checking" = xno; then
2484   stage1_checking=--enable-checking
2485 else
2486   stage1_checking=--enable-checking${enable_checking+=}$enable_checking
2487 fi])
2488 AC_SUBST(stage1_checking)
2489
2490 # Enable -Werror in bootstrap stage2 and later.
2491 # Change the default to "no" on release branches.
2492 AC_ARG_ENABLE(werror,
2493 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2494 [enable_werror=yes])
2495 case ${enable_werror} in
2496   yes) stage2_werror_flag="--enable-werror-always" ;;
2497   *) stage2_werror_flag="" ;;
2498 esac
2499 AC_SUBST(stage2_werror_flag)
2500
2501 # Flags needed to enable html installing and building
2502 AC_ARG_WITH(datarootdir,
2503 [  --with-datarootdir   Use datarootdir as the data root directory.],
2504 [datarootdir="\${prefix}/${withval}"],
2505 [datarootdir="\${prefix}/share"])
2506
2507 AC_ARG_WITH(docdir,
2508 [  --with-docdir        Install documentation in this directory.],
2509 [docdir="\${prefix}/${withval}"],
2510 [docdir="\${datarootdir}/doc"])
2511
2512 AC_ARG_WITH(htmldir,
2513 [  --with-htmldir       Install html in this directory.],
2514 [htmldir="\${prefix}/${withval}"],
2515 [htmldir="\${docdir}"])
2516
2517 AC_SUBST(datarootdir)
2518 AC_SUBST(docdir)
2519 AC_SUBST(htmldir)
2520
2521 AC_OUTPUT(Makefile)