configure.in

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   2 #   1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
   3 #
   4 # This file is free software; you can redistribute it and/or modify it
   5 # under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful, but
  10 # WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17
  18 ##############################################################################
  19 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
  20
  21 sinclude(config/acx.m4)
  22 sinclude(config/gcc-version.m4)
  23 sinclude(config/gxx-include-dir.m4)
  24
  25 AC_INIT(move-if-change)
  26 AC_PREREQ(2.13)
  27 AC_CANONICAL_SYSTEM
  28 AC_ARG_PROGRAM
  29
  30 # Get 'install' or 'install-sh' and its variants.
  31 AC_PROG_INSTALL
  32 ACX_PROG_LN
  33 AC_PROG_LN_S
  34
  35 ### we might need to use some other shell than /bin/sh for running subshells
  36 ### If we are on Windows, search for the shell.  This will permit people
  37 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  38 ### without also having to set CONFIG_SHELL.  This code will work when
  39 ### using bash, which sets OSTYPE.
  40 case "${OSTYPE}" in
  41 *win32*)
  42   if test x${CONFIG_SHELL} = x ; then
  43     if test ! -f /bin/sh ; then
  44       if test x${SHELL} != x && test -f ${SHELL} ; then
  45         CONFIG_SHELL=${SHELL}
  46         export CONFIG_SHELL
  47       else
  48         for prog in sh sh.exe bash bash.exe; do
  49           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
  50           for dir in $PATH; do
  51             test -z "$dir" && dir=.
  52             if test -f $dir/$prog; then
  53               CONFIG_SHELL=$dir/$prog
  54               export CONFIG_SHELL
  55               break
  56             fi
  57           done
  58           IFS="$save_ifs"
  59           test -n "${CONFIG_SHELL}" && break
  60         done
  61       fi
  62     fi
  63   fi
  64   ;;
  65 esac
  66
  67 config_shell=${CONFIG_SHELL-/bin/sh}
  68
  69 progname=$0
  70 # if PWD already has a value, it is probably wrong.
  71 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  72
  73 # Export original configure arguments for use by sub-configures.  These
  74 # will be expanded by make, so quote '$'.
  75 tmp="$progname $@"
  76 sed -e 's,\$,$$,g' <<EOF_SED > conftestsed.out
  77 $tmp
  78 EOF_SED
  79 TOPLEVEL_CONFIGURE_ARGUMENTS=`cat conftestsed.out`
  80 rm -f conftestsed.out
  81 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
  82
  83 moveifchange=${srcdir}/move-if-change
  84
  85 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
  86
  87 # We pass INSTALL explicitly to sub-makes.  Make sure that it is not
  88 # a relative path.
  89 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
  90   INSTALL="${srcpwd}/install-sh -c"
  91 fi
  92
  93 # Set srcdir to "." if that's what it is.
  94 # This is important for multilib support.
  95 pwd=`${PWDCMD-pwd}`
  96 if test "${pwd}" = "${srcpwd}" ; then
  97   srcdir=.
  98 fi
  99
 100 topsrcdir=$srcpwd
 101
 102 extra_host_args=
 103
 104 # Define the trigger file to make sure configure will re-run whenever
 105 # the gcc version number changes.
 106 TL_AC_GCC_VERSION([$topsrcdir])
 107 if test -f $gcc_version_trigger ; then
 108   case "$ac_configure_args" in
 109     *--with-gcc-version-trigger=$gcc_version_trigger* )
 110       ;;
 111     * )
 112       # Add to all subconfigure arguments: build, host, and target.
 113       ac_configure_args="$ac_configure_args --with-gcc-version-trigger=$gcc_version_trigger"
 114       ;;
 115   esac
 116 else
 117   gcc_version_trigger=
 118 fi
 119
 120 ### To add a new directory to the tree, first choose whether it is a target
 121 ### or a host dependent tool.  Then put it into the appropriate list
 122 ### (library or tools, host or target), doing a dependency sort.
 123
 124 # Subdirs will be configured in the order listed in build_configdirs,
 125 # configdirs, or target_configdirs; see the serialization section below.
 126
 127 # Dependency sorting is only needed when *configuration* must be done in
 128 # a particular order.  In all cases a dependency should be specified in
 129 # the Makefile, whether or not it's implicitly specified here.
 130
 131 # Double entries in build_configdirs, configdirs, or target_configdirs may
 132 # cause circular dependencies and break everything horribly.
 133
 134 # these library is used by various programs built for the build
 135 # environment
 136 #
 137 build_libs="build-libiberty"
 138
 139 # these tools are built for the build environment
 140 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
 141
 142 # these libraries are used by various programs built for the host environment
 143 #
 144 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp"
 145
 146 # these tools are built for the host environment
 147 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 148 # know that we are building the simulator.
 149 # binutils, gas and ld appear in that order because it makes sense to run
 150 # "make check" in that particular order.
 151 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"
 152
 153 # libgcj represents the runtime libraries only used by gcj.
 154 libgcj="target-libffi \
 155         target-boehm-gc \
 156         target-zlib \
 157         target-qthreads \
 158         target-libjava"
 159
 160 # these libraries are built for the target environment, and are built after
 161 # the host libraries and the host tools (which may be a cross compiler)
 162 #
 163 target_libraries="target-libiberty \
 164                 target-libgloss \
 165                 target-newlib \
 166                 target-libstdc++-v3 \
 167                 target-libmudflap \
 168                 target-libgfortran \
 169                 ${libgcj} \
 170                 target-libobjc \
 171                 target-libada"
 172
 173 # these tools are built using the target libraries, and are intended to
 174 # run only in the target environment
 175 #
 176 # note: any program that *uses* libraries that are in the "target_libraries"
 177 # list belongs in this list.  those programs are also very likely
 178 # candidates for the "native_only" list which follows
 179 #
 180 target_tools="target-examples target-groff target-gperf target-rda"
 181
 182 ################################################################################
 183
 184 ## All tools belong in one of the four categories, and are assigned above
 185 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 186 ## is important because configure will choke if they ever get through.
 187 ## ${configdirs} is directories we build using the host tools.
 188 ## ${target_configdirs} is directories we build using the target tools.
 189 configdirs=`echo ${host_libs} ${host_tools}`
 190 target_configdirs=`echo ${target_libraries} ${target_tools}`
 191 build_configdirs=`echo ${build_libs} ${build_tools}`
 192
 193 ################################################################################
 194
 195 srcname="gnu development package"
 196
 197 # This gets set non-empty for some net releases of packages.
 198 appdirs=""
 199
 200 # Define is_cross_compiler to save on calls to 'test'.
 201 is_cross_compiler=
 202 if test x"${host}" = x"${target}" ; then
 203   is_cross_compiler=no
 204 else
 205   is_cross_compiler=yes
 206 fi
 207
 208 # Find the build and target subdir names.
 209 GCC_TOPLEV_SUBDIRS
 210
 211 # Skipdirs are removed silently.
 212 skipdirs=
 213 # Noconfigdirs are removed loudly.
 214 noconfigdirs=""
 215
 216 use_gnu_ld=
 217 # Make sure we don't let GNU ld be added if we didn't want it.
 218 if test x$with_gnu_ld = xno ; then
 219   use_gnu_ld=no
 220   noconfigdirs="$noconfigdirs ld"
 221 fi
 222
 223 use_gnu_as=
 224 # Make sure we don't let GNU as be added if we didn't want it.
 225 if test x$with_gnu_as = xno ; then
 226   use_gnu_as=no
 227   noconfigdirs="$noconfigdirs gas"
 228 fi
 229
 230 # some tools are so dependent upon X11 that if we're not building with X,
 231 # it's not even worth trying to configure, much less build, that tool.
 232
 233 case ${with_x} in
 234   yes | "") ;; # the default value for this tree is that X11 is available
 235   no)
 236     skipdirs="${skipdirs} tk itcl libgui"
 237     # We won't be able to build gdbtk without X.
 238     enable_gdbtk=no
 239     ;;
 240   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 241 esac
 242
 243 # Some tools are only suitable for building in a "native" situation.
 244 # Remove these if host!=target.
 245 native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff gprof target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
 246
 247 # Similarly, some are only suitable for cross toolchains.
 248 # Remove these if host=target.
 249 cross_only="target-libgloss target-newlib target-opcodes"
 250
 251 case $is_cross_compiler in
 252   no) skipdirs="${skipdirs} ${cross_only}" ;;
 253   yes) skipdirs="${skipdirs} ${native_only}" ;;
 254 esac
 255
 256 # If both --with-headers and --with-libs are specified, default to
 257 # --without-newlib.
 258 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 259    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 260   if test x"${with_newlib}" = x ; then
 261     with_newlib=no
 262   fi
 263 fi
 264
 265 # Recognize --with-newlib/--without-newlib.
 266 case ${with_newlib} in
 267   no) skipdirs="${skipdirs} target-newlib" ;;
 268   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 269 esac
 270
 271 # Configure extra directories which are host specific
 272
 273 case "${host}" in
 274   *-cygwin*)
 275     configdirs="$configdirs libtermcap" ;;
 276 esac
 277
 278 # Remove more programs from consideration, based on the host or
 279 # target this usually means that a port of the program doesn't
 280 # exist yet.
 281
 282 case "${host}" in
 283   hppa*64*-*-*)
 284     noconfigdirs="$noconfigdirs byacc"
 285     ;;
 286   i[[3456789]]86-*-vsta)
 287     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 288     ;;
 289   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 290     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 291     ;;
 292   i[[3456789]]86-*-mingw32*)
 293     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 294     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 295     ;;
 296   i[[3456789]]86-*-beos*)
 297     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 298     ;;
 299   *-*-cygwin*)
 300     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 301     ;;
 302   *-*-netbsd*)
 303     noconfigdirs="$noconfigdirs rcs"
 304     ;;
 305   ppc*-*-pe)
 306     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 307     ;;
 308   powerpc-*-beos*)
 309     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 310     ;;
 311 esac
 312
 313
 314 AC_ARG_ENABLE(libada,
 315 [  --enable-libada        Builds libada directory],
 316 ENABLE_LIBADA=$enableval,
 317 ENABLE_LIBADA=yes)
 318 if test "${ENABLE_LIBADA}" != "yes" ; then
 319   noconfigdirs="$noconfigdirs target-libada"
 320   noconfigdirs="$noconfigdirs gnattools"
 321 fi
 322
 323 # Save it here so that, even in case of --enable-libgcj, if the Java
 324 # front-end isn't enabled, we still get libgcj disabled.
 325 libgcj_saved=$libgcj
 326 case $enable_libgcj in
 327 yes)
 328   # If we reset it here, it won't get added to noconfigdirs in the
 329   # target-specific build rules, so it will be forcibly enabled
 330   # (unless the Java language itself isn't enabled).
 331   libgcj=
 332   ;;
 333 no)
 334   # Make sure we get it printed in the list of not supported target libs.
 335   noconfigdirs="$noconfigdirs ${libgcj}"
 336   ;;
 337 esac
 338
 339
 340 # Allow --disable-libmudflap to exclude target-libmudflap
 341 case $enable_libmudflap in
 342 yes)
 343     ;;
 344 no)
 345     noconfigdirs="$noconfigdirs target-libmudflap"
 346     ;;
 347 "")
 348     case "${target}" in
 349     *-*-linux*-gnu | *-*-gnu* | *-*-k*bsd*-gnu)
 350         # Enable libmudflap by default in GNU and friends.
 351         ;;
 352     *-*-freebsd*)
 353         # Enable libmudflap by default in FreeBSD.
 354         ;;
 355     *)
 356         # Disable it by default everywhere else.
 357         noconfigdirs="$noconfigdirs target-libmudflap"
 358         ;;
 359     esac
 360 esac
 361
 362
 363 case "${target}" in
 364   *-*-chorusos)
 365     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 366     ;;
 367   powerpc-*-darwin*)
 368     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 369     ;;
 370   *-*-darwin*)
 371     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 372     noconfigdirs="$noconfigdirs ${libgcj}"
 373     ;;
 374   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 375     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 376     ;;
 377   *-*-freebsd*)
 378     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 379     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 380         && test -f /usr/local/include/gmp.h; then
 381       with_gmp=/usr/local
 382     fi
 383
 384     # Skip some stuff that's unsupported on some FreeBSD configurations.
 385     case "${target}" in
 386       i*86-*-*) ;;
 387       alpha*-*-*) ;;
 388       *)
 389         noconfigdirs="$noconfigdirs ${libgcj}"
 390         ;;
 391     esac
 392     ;;
 393   *-*-kaos*)
 394     # Remove unsupported stuff on all kaOS configurations.
 395     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 396     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 397     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 398     noconfigdirs="$noconfigdirs target-libgloss"
 399     ;;
 400   *-*-netbsd*)
 401     # Skip some stuff on all NetBSD configurations.
 402     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 403
 404     # Skip some stuff that's unsupported on some NetBSD configurations.
 405     case "${target}" in
 406       i*86-*-netbsdelf*) ;;
 407       arm*-*-netbsdelf*) ;;
 408       *)
 409         noconfigdirs="$noconfigdirs ${libgcj}"
 410         ;;
 411     esac
 412     ;;
 413   *-*-netware*)
 414     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 415     ;;
 416   *-*-rtems*)
 417     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 418     ;;
 419   *-*-uclinux*)
 420     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 421     ;;
 422   *-*-vxworks*)
 423     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj}"
 424     ;;
 425   alpha*-dec-osf*)
 426     # ld works, but does not support shared libraries.
 427     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 428     # gas doesn't generate exception information.
 429     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 430     ;;
 431   alpha*-*-*vms*)
 432     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 433     ;;
 434   alpha*-*-linux*)
 435     # newlib is not 64 bit ready
 436     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 437     ;;
 438   alpha*-*-*)
 439     # newlib is not 64 bit ready
 440     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 441     ;;
 442   am33_2.0-*-linux*)
 443     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 444     ;;
 445   sh-*-linux*)
 446     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 447     ;;
 448   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 449     noconfigdirs="$noconfigdirs ${libgcj}"
 450     noconfigdirs="$noconfigdirs target-examples"
 451     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 452     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 453     noconfigdirs="$noconfigdirs expect dejagnu"
 454     # the C++ libraries don't build on top of CE's C libraries
 455     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 456     noconfigdirs="$noconfigdirs target-newlib"
 457     case "${host}" in
 458       *-*-cygwin*) ;; # keep gdb and readline
 459       *) noconfigdirs="$noconfigdirs gdb readline"
 460          ;;
 461     esac
 462     ;;
 463   arc-*-*)
 464     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 465     ;;
 466   arm-semi-aof )
 467     ;;
 468   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 469     noconfigdirs="$noconfigdirs ${libgcj}"
 470     ;;
 471   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 472     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 473     ;;
 474   arm*-*-symbianelf*)
 475     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 476     ;;
 477   arm-*-pe*)
 478     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 479     ;;
 480   thumb-*-coff)
 481     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 482     ;;
 483   thumb-*-elf)
 484     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 485     ;;
 486   thumb-*-pe)
 487     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 488     ;;
 489   arm-*-riscix*)
 490     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 491     ;;
 492   avr-*-*)
 493     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 494     ;;
 495   c4x-*-* | tic4x-*-*)
 496     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 497     ;;
 498   c54x*-*-* | tic54x-*-*)
 499     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 500     ;;
 501   cris-*-* | crisv32-*-*)
 502     case "${target}" in
 503       *-*-elf | *-*-aout)
 504         noconfigdirs="$noconfigdirs ${libgcj}";;
 505       *)
 506         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 507     esac
 508     ;;
 509   crx-*-*)
 510     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 511     ;;
 512   d10v-*-*)
 513     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 514     ;;
 515   d30v-*-*)
 516     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 517     ;;
 518   fr30-*-elf*)
 519     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 520     ;;
 521   frv-*-*)
 522     noconfigdirs="$noconfigdirs ${libgcj}"
 523     ;;
 524   h8300*-*-*)
 525     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 526     ;;
 527   h8500-*-*)
 528     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 529     ;;
 530   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 531     ;;
 532   hppa*64*-*-linux* | parisc*64*-*-linux*)
 533     # In this case, it's because the hppa64-linux target is for
 534     # the kernel only at this point and has no libc, and thus no
 535     # headers, crt*.o, etc., all of which are needed by these.
 536     noconfigdirs="$noconfigdirs target-zlib"
 537     ;;
 538   parisc*-*-linux* | hppa*-*-linux*)
 539     ;;
 540   hppa*-*-*elf* | \
 541   hppa*-*-lites* | \
 542   hppa*-*-openbsd* | \
 543   hppa*64*-*-*)
 544     noconfigdirs="$noconfigdirs ${libgcj}"
 545     ;;
 546   hppa*-*-*)
 547     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 548     # build on HP-UX 10.20.
 549     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 550     ;;
 551   i960-*-*)
 552     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 553     ;;
 554   ia64*-*-elf*)
 555     # No gdb support yet.
 556     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 557     ;;
 558   ia64*-**-hpux*)
 559     # No gdb or ld support yet.
 560     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 561     ;;
 562   i370-*-opened*)
 563     ;;
 564   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 565     noconfigdirs="$noconfigdirs ${libgcj}"
 566     ;;
 567   i[[3456789]]86-*-linux*)
 568     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 569     # not build java stuff by default.
 570     case "${target}" in
 571       *-*-*libc1*)
 572         noconfigdirs="$noconfigdirs ${libgcj}";;
 573     esac
 574
 575     # This section makes it possible to build newlib natively on linux.
 576     # If we are using a cross compiler then don't configure newlib.
 577     if test x${is_cross_compiler} != xno ; then
 578       noconfigdirs="$noconfigdirs target-newlib"
 579     fi
 580     noconfigdirs="$noconfigdirs target-libgloss"
 581     # If we are not using a cross compiler, do configure newlib.
 582     # Note however, that newlib will only be configured in this situation
 583     # if the --with-newlib option has been given, because otherwise
 584     # 'target-newlib' will appear in skipdirs.
 585     ;;
 586   i[[3456789]]86-*-mingw32*)
 587     target_configdirs="$target_configdirs target-mingw"
 588     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 589
 590     # Can't build gdb for mingw32 if not native.
 591     case "${host}" in
 592       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 593       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 594          ;;
 595     esac
 596     ;;
 597   *-*-cygwin*)
 598     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 599     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 600     # always build newlib if winsup directory is present.
 601     if test -d "$srcdir/winsup"; then
 602       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 603     elif test -d "$srcdir/newlib"; then
 604       echo "Warning: winsup is missing so newlib can't be built."
 605     fi
 606
 607     # Can't build gdb for Cygwin if not native.
 608     case "${host}" in
 609       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 610       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 611          ;;
 612     esac
 613     ;;
 614   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 615   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 616     ;;
 617   i[[3456789]]86-*-pe)
 618     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 619     ;;
 620   i[[3456789]]86-*-sco3.2v5*)
 621     # The linker does not yet know about weak symbols in COFF,
 622     # and is not configured to handle mixed ELF and COFF.
 623     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 624     ;;
 625   i[[3456789]]86-*-sco*)
 626     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 627     ;;
 628   i[[3456789]]86-*-solaris2*)
 629     noconfigdirs="$noconfigdirs target-libgloss"
 630     ;;
 631   i[[3456789]]86-*-sysv4*)
 632     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 633     ;;
 634   i[[3456789]]86-*-beos*)
 635     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 636     ;;
 637   m32r-*-*)
 638     noconfigdirs="$noconfigdirs ${libgcj}"
 639     ;;
 640   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 641     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 642     ;;
 643   m68k-*-elf*)
 644     noconfigdirs="$noconfigdirs ${libgcj}"
 645     ;;
 646   m68k-*-coff*)
 647     noconfigdirs="$noconfigdirs ${libgcj}"
 648     ;;
 649   mcore-*-pe*)
 650   # The EPOC C++ environment does not support exceptions or rtti,
 651   # and so building libstdc++-v3 tends not to always work.
 652     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 653     ;;
 654   mmix-*-*)
 655     noconfigdirs="$noconfigdirs ${libgcj} gdb libgloss target-libgfortran"
 656     ;;
 657   mn10200-*-*)
 658     noconfigdirs="$noconfigdirs ${libgcj}"
 659     ;;
 660   mn10300-*-*)
 661     noconfigdirs="$noconfigdirs ${libgcj}"
 662     ;;
 663   powerpc-*-aix*)
 664     # copied from rs6000-*-* entry
 665     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 666     ;;
 667   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 668     target_configdirs="$target_configdirs target-winsup"
 669     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 670     # always build newlib.
 671     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 672     ;;
 673     # This is temporary until we can link against shared libraries
 674   powerpcle-*-solaris*)
 675     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 676     ;;
 677   powerpc-*-beos*)
 678     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 679     ;;
 680   powerpc-*-eabi)
 681     noconfigdirs="$noconfigdirs ${libgcj}"
 682     ;;
 683   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 684     ;;
 685   rs6000-*-lynxos*)
 686     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 687     ;;
 688   rs6000-*-aix*)
 689     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 690     ;;
 691   rs6000-*-*)
 692     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 693     ;;
 694   m68k-apollo-*)
 695     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 696     ;;
 697   mips*-*-irix5*)
 698     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 699     ;;
 700   mips*-*-irix6*)
 701     # Linking libjava exceeds command-line length limits on at least
 702     # IRIX 6.2, but not on IRIX 6.5.
 703     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 704     # <oldham@codesourcery.com>
 705     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 706     ;;
 707   mips*-dec-bsd*)
 708     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 709     ;;
 710   mips*-*-bsd*)
 711     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 712     ;;
 713   mipstx39-*-*)
 714     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 715     ;;
 716   mips64*-*-linux*)
 717     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 718     ;;
 719   mips*-*-linux*)
 720     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 721     ;;
 722   mips*-*-*)
 723     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 724     ;;
 725   romp-*-*)
 726     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 727     ;;
 728   sh-*-* | sh64-*-*)
 729     case "${host}" in
 730       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 731       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 732       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 733       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 734     esac
 735     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 736     ;;
 737   sparc-*-elf*)
 738     noconfigdirs="$noconfigdirs ${libgcj}"
 739     ;;
 740   sparc64-*-elf*)
 741     noconfigdirs="$noconfigdirs ${libgcj}"
 742     ;;
 743   sparclite-*-*)
 744     noconfigdirs="$noconfigdirs ${libgcj}"
 745     ;;
 746   sparc-*-sunos4*)
 747     noconfigdirs="$noconfigdirs ${libgcj}"
 748     if test x${is_cross_compiler} != xno ; then
 749            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 750     else
 751            use_gnu_ld=no
 752     fi
 753     ;;
 754   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 755     noconfigdirs="$noconfigdirs ${libgcj}"
 756     ;;
 757   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 758     ;;
 759   v810-*-*)
 760     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 761     ;;
 762   v850-*-*)
 763     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 764     ;;
 765   v850e-*-*)
 766     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 767     ;;
 768   v850ea-*-*)
 769     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 770     ;;
 771   vax-*-vms)
 772     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 773     ;;
 774   vax-*-*)
 775     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 776     ;;
 777   xtensa-*-*)
 778     noconfigdirs="$noconfigdirs ${libgcj}"
 779     ;;
 780   ip2k-*-*)
 781     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 782     ;;
 783   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 784     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 785     ;;
 786   *-*-lynxos*)
 787     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 788     ;;
 789   *-*-*)
 790     noconfigdirs="$noconfigdirs ${libgcj}"
 791     ;;
 792 esac
 793
 794 # If we aren't building newlib, then don't build libgloss, since libgloss
 795 # depends upon some newlib header files.
 796 case "${noconfigdirs}" in
 797   *target-libgloss*) ;;
 798   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 799 esac
 800
 801 # Work in distributions that contain no compiler tools, like Autoconf.
 802 tentative_cc=""
 803 host_makefile_frag=/dev/null
 804 if test -d ${srcdir}/config ; then
 805 case "${host}" in
 806   m68k-hp-hpux*)
 807     # Avoid "too much defining" errors from HPUX compiler.
 808     tentative_cc="cc -Wp,-H256000"
 809     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 810     # If it's HP/UX ar, this should be harmless.
 811     RANLIB="ar ts"
 812     ;;
 813   m68k-apollo-sysv*)
 814     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 815     ;;
 816   m68k-apollo-bsd*)
 817     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 818     # chokes on bfd, the compiler won't let you assign integers to enums, and
 819     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 820     # the apollo compiler" (the preferred version of GCC could be called cc,
 821     # or whatever), but I'm not sure leaving CC as cc is any better...
 822     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 823     # Used to have BISON=yacc.
 824     tentative_cc=gcc
 825     ;;
 826   m88k-dg-dgux*)
 827     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 828     ;;
 829   m88k-harris-cxux*)
 830     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 831     tentative_cc="cc -Xa"
 832     host_makefile_frag="config/mh-cxux"
 833     ;;
 834   m88k-motorola-sysv*)
 835     ;;
 836   mips*-dec-ultrix*)
 837     tentative_cc="cc -Wf,-XNg1000"
 838     host_makefile_frag="config/mh-decstation"
 839     ;;
 840   mips*-nec-sysv4*)
 841     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 842     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 843     host_makefile_frag="config/mh-necv4"
 844     ;;
 845   mips*-sgi-irix4*)
 846     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 847     # environment.  Also bump switch table size so that cp-parse will
 848     # compile.  Bump string length limit so linker builds.
 849     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 850     ;;
 851   mips*-*-sysv4*)
 852     host_makefile_frag="config/mh-sysv4"
 853     ;;
 854   mips*-*-sysv*)
 855     # This is for a MIPS running RISC/os 4.52C.
 856
 857     # This is needed for GDB, but needs to be in the top-level make because
 858     # if a library is compiled with the bsd headers and gets linked with the
 859     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 860     # a different size).
 861     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 862     # known except to select the sysv environment.  Could we use /proc instead?
 863     # These "sysv environments" and "bsd environments" often end up being a pain.
 864     #
 865     # This is not part of CFLAGS because perhaps not all C compilers have this
 866     # option.
 867     tentative_cc="cc -systype sysv"
 868     ;;
 869   i370-ibm-opened*)
 870     tentative_cc="c89"
 871     ;;
 872   i[[3456789]]86-*-sysv5*)
 873     host_makefile_frag="config/mh-sysv5"
 874     ;;
 875   i[[3456789]]86-*-dgux*)
 876     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 877     host_makefile_frag="config/mh-dgux386"
 878     ;;
 879   i[[3456789]]86-ncr-sysv4.3*)
 880     # The MetaWare compiler will generate a copyright message unless you
 881     # turn it off by adding the -Hnocopyr flag.
 882     tentative_cc="cc -Hnocopyr"
 883     ;;
 884   i[[3456789]]86-ncr-sysv4*)
 885     # for an NCR 3000 (i486/SVR4) system.
 886     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 887     # This compiler not only emits obnoxious copyright messages every time
 888     # you run it, but it chokes and dies on a whole bunch of GNU source
 889     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 890     tentative_cc="/usr/ccs/ATT/cc"
 891     host_makefile_frag="config/mh-ncr3000"
 892     ;;
 893   i[[3456789]]86-*-sco3.2v5*)
 894     ;;
 895   i[[3456789]]86-*-sco*)
 896     # The native C compiler botches some simple uses of const.  Unfortunately,
 897     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 898     tentative_cc="cc -Dconst="
 899     host_makefile_frag="config/mh-sco"
 900     ;;
 901   i[[3456789]]86-*-udk*)
 902     host_makefile_frag="config/mh-sysv5"
 903     ;;
 904   i[[3456789]]86-*-solaris2*)
 905     host_makefile_frag="config/mh-sysv4"
 906     ;;
 907   i[[3456789]]86-*-msdosdjgpp*)
 908     host_makefile_frag="config/mh-djgpp"
 909     ;;
 910   *-cygwin*)
 911     host_makefile_frag="config/mh-cygwin"
 912     ;;
 913   *-mingw32*)
 914     host_makefile_frag="config/mh-mingw32"
 915     ;;
 916   *-interix*)
 917     host_makefile_frag="config/mh-interix"
 918     ;;
 919   vax-*-ultrix2*)
 920     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 921     tentative_cc=gcc
 922     ;;
 923   *-*-solaris2*)
 924     host_makefile_frag="config/mh-solaris"
 925     ;;
 926   m68k-sun-sunos*)
 927     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 928     # without overflowing the jump tables (-J says to use a 32 bit table)
 929     tentative_cc="cc -J"
 930     ;;
 931   *-hp-hpux*)
 932     tentative_cc="cc -Wp,-H256000"
 933     ;;
 934   *-*-hiux*)
 935     tentative_cc="cc -Wp,-H256000"
 936     ;;
 937   rs6000-*-lynxos*)
 938     # /bin/cc is less than useful for our purposes.  Always use GCC
 939     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 940     host_makefile_frag="config/mh-lynxrs6k"
 941     ;;
 942   powerpc-*-darwin*)
 943     host_makefile_frag="config/mh-ppc-darwin"
 944     ;;
 945   *-*-lynxos*)
 946     # /bin/cc is less than useful for our purposes.  Always use GCC
 947     tentative_cc="/bin/gcc"
 948     ;;
 949   *-*-sysv4*)
 950     host_makefile_frag="config/mh-sysv4"
 951     ;;
 952   # This is placed last to prevent interfering with the cases above.
 953   i[[3456789]]86-*-*)
 954     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 955     host_makefile_frag="config/mh-x86omitfp"
 956     ;;
 957 esac
 958 fi
 959
 960 # If we aren't going to be using gcc, see if we can extract a definition
 961 # of CC from the fragment.
 962 # Actually, use the 'pre-extracted' version above.
 963 if test -z "${CC}" && test "${build}" = "${host}" ; then
 964   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 965   found=
 966   for dir in $PATH; do
 967     test -z "$dir" && dir=.
 968     if test -f $dir/gcc; then
 969       found=yes
 970       break
 971     fi
 972   done
 973   IFS="$save_ifs"
 974   if test -z "${found}" && test -n "${tentative_cc}" ; then
 975     CC=$tentative_cc
 976   fi
 977 fi
 978
 979 if test "${build}" != "${host}" ; then
 980   # If we are doing a Canadian Cross, in which the host and build systems
 981   # are not the same, we set reasonable default values for the tools.
 982
 983   CC=${CC-${host_alias}-gcc}
 984   CFLAGS=${CFLAGS-"-g -O2"}
 985   CXX=${CXX-${host_alias}-c++}
 986   CXXFLAGS=${CXXFLAGS-"-g -O2"}
 987   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
 988   CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc}
 989   CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++}
 990   GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj}
 991   GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}}
 992   BUILD_PREFIX=${build_alias}-
 993   BUILD_PREFIX_1=${build_alias}-
 994
 995 else
 996   # Set reasonable default values for some tools even if not Canadian.
 997   # Of course, these are different reasonable default values, originally
 998   # specified directly in the Makefile.
 999   # We don't export, so that autoconf can do its job.
1000   # Note that all these settings are above the fragment inclusion point
1001   # in Makefile.in, so can still be overridden by fragments.
1002   # This is all going to change when we autoconfiscate...
1003
1004   CC_FOR_BUILD="\$(CC)"
1005   GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
1006   BUILD_PREFIX=
1007   BUILD_PREFIX_1=loser-
1008
1009   AC_PROG_CC
1010
1011   # We must set the default linker to the linker used by gcc for the correct
1012   # operation of libtool.  If LD is not defined and we are using gcc, try to
1013   # set the LD default to the ld used by gcc.
1014   if test -z "$LD"; then
1015     if test "$GCC" = yes; then
1016       case $build in
1017       *-*-mingw*)
1018         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1019       *)
1020         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1021       esac
1022       case $gcc_prog_ld in
1023       # Accept absolute paths.
1024       [[\\/]* | [A-Za-z]:[\\/]*)]
1025         LD="$gcc_prog_ld" ;;
1026       esac
1027     fi
1028   fi
1029
1030   CXX=${CXX-"c++"}
1031   CFLAGS=${CFLAGS-"-g"}
1032   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1033 fi
1034
1035 ACX_PROG_GNAT
1036 ACX_PROG_CMP_IGNORE_INITIAL
1037
1038 # Check for GMP and MPFR
1039 gmplibs=
1040 gmpinc=
1041 have_gmp=yes
1042 # Specify a location for mpfr
1043 # check for this first so it ends up on the link line before gmp.
1044 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1045
1046 if test "x$with_mpfr_dir" != x; then
1047   gmpinc="-I$with_mpfr_dir/mpfr"
1048   gmplibs="$with_mpfr_dir/libmpfr.a"
1049 else
1050   gmplibs="-lmpfr"
1051 fi
1052
1053 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1054
1055 if test "x$with_mpfr" != x; then
1056   gmplibs="-L$with_mpfr/lib $gmplibs"
1057   gmpinc="-I$with_mpfr/include"
1058 fi
1059
1060 # Specify a location for gmp
1061 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1062
1063 if test "x$with_gmp_dir" != x; then
1064   gmpinc="$gmpinc -I$with_gmp_dir"
1065   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1066     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1067   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1068     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1069   fi
1070   # One of the later tests will catch the error if neither library is present.
1071 else
1072   gmplibs="$gmplibs -lgmp"
1073 fi
1074
1075 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1076
1077 if test "x$with_gmp" != x; then
1078   gmplibs="-L$with_gmp/lib $gmplibs"
1079   gmpinc="-I$with_gmp/include $gmpinc"
1080 fi
1081
1082 saved_CFLAGS="$CFLAGS"
1083 CFLAGS="$CFLAGS $gmpinc"
1084 # Check GMP actually works
1085 AC_MSG_CHECKING([for correct version of gmp.h])
1086 AC_TRY_COMPILE([#include "gmp.h"],[
1087 #if __GNU_MP_VERSION < 3
1088 choke me
1089 #endif
1090 ], [AC_MSG_RESULT([yes])],
1091   [AC_MSG_RESULT([no]); have_gmp=no])
1092
1093 if test x"$have_gmp" = xyes; then
1094   AC_MSG_CHECKING([for MPFR])
1095
1096   saved_LIBS="$LIBS"
1097   LIBS="$LIBS $gmplibs"
1098   AC_TRY_LINK([#include <gmp.h>
1099 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1100     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1101   LIBS="$saved_LIBS"
1102   CFLAGS="$saved_CFLAGS"
1103 fi
1104
1105 # Flags needed for both GMP and/or MPFR
1106 AC_SUBST(gmplibs)
1107 AC_SUBST(gmpinc)
1108
1109 # By default, C is the only stage 1 language.
1110 stage1_languages=c
1111 AC_SUBST(stage1_languages)
1112
1113 # Figure out what language subdirectories are present.
1114 # Look if the user specified --enable-languages="..."; if not, use
1115 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1116 # go away some day.
1117 # NB:  embedded tabs in this IF block -- do not untabify
1118 if test -d ${srcdir}/gcc; then
1119   if test x"${enable_languages+set}" != xset; then
1120     if test x"${LANGUAGES+set}" = xset; then
1121       enable_languages="${LANGUAGES}"
1122         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1123     else
1124       enable_languages=all
1125     fi
1126   else
1127     if test x"${enable_languages}" = x ||
1128        test x"${enable_languages}" = xyes;
1129        then
1130       echo configure.in: --enable-languages needs at least one language argument 1>&2
1131       exit 1
1132     fi
1133   fi
1134   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1135
1136   # First scan to see if an enabled language requires some other language.
1137   # We assume that a given config-lang.in will list all the language
1138   # front ends it requires, even if some are required indirectly.
1139   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1140     case ${lang_frag} in
1141       ..) ;;
1142       # The odd quoting in the next line works around
1143       # an apparent bug in bash 1.12 on linux.
1144       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1145       *)
1146         # From the config-lang.in, get $language, $lang_requires
1147         language=
1148         lang_requires=
1149         . ${lang_frag}
1150         for other in ${lang_requires} ; do
1151           case ,${enable_languages}, in
1152             *,$other,*) ;;
1153             *,all,*) ;;
1154             *,$language,*)
1155               echo " \`$other' language required by \`$language'; enabling" 1>&2
1156               enable_languages="${enable_languages},${other}"
1157               ;;
1158           esac
1159         done
1160         ;;
1161     esac
1162   done
1163
1164   new_enable_languages=c
1165   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1166   potential_languages=c
1167
1168   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1169     case ${lang_frag} in
1170       ..) ;;
1171       # The odd quoting in the next line works around
1172       # an apparent bug in bash 1.12 on linux.
1173       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1174       *)
1175         # From the config-lang.in, get $language, $target_libs,
1176         # $lang_dirs, $boot_language, and $build_by_default
1177         language=
1178         target_libs=
1179         lang_dirs=
1180         boot_language=
1181         build_by_default=
1182         need_gmp=
1183         . ${lang_frag}
1184         potential_languages="${potential_languages},${language}"
1185         # This is quite sensitive to the ordering of the case statement arms.
1186         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1187           *::*:*)
1188             echo "${lang_frag} doesn't set \$language." 1>&2
1189             exit 1
1190             ;;
1191           *:ada:no:*)
1192             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1193             add_this_lang=no
1194             ;;
1195           *,${language},*:*:*:*)
1196             # Language was explicitly selected; include it.
1197             add_this_lang=yes
1198             ;;
1199           *,all,*:*:*:no)
1200             # 'all' was selected, but this is not a default language
1201             # so do not include it.
1202             add_this_lang=no
1203             ;;
1204           *,all,*:*:*:*)
1205             # 'all' was selected and this is a default language; include it.
1206             add_this_lang=yes
1207             ;;
1208           *)
1209             add_this_lang=no
1210             ;;
1211         esac
1212
1213         # Disable languages that need GMP if it isn't available.
1214         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1215           *,${language},*:no:yes)
1216             # Specifically requested language; tell them.
1217             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1218             ;;
1219           *:no:yes)
1220             # Silently disable.
1221             add_this_lang=no
1222             ;;
1223         esac
1224
1225         case $add_this_lang in
1226           no)
1227             # Remove language-dependent dirs.
1228             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1229             ;;
1230           *)
1231             new_enable_languages="$new_enable_languages,$language"
1232             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1233             case ${boot_language} in
1234               yes)
1235                 # Add to (comma-separated) list of stage 1 languages.
1236                 stage1_languages="${stage1_languages},${language}"
1237                 ;;
1238             esac
1239             ;;
1240         esac
1241         ;;
1242     esac
1243   done
1244
1245   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1246   if test "x$missing_languages" != x; then
1247     AC_MSG_ERROR([
1248 The following requested languages were not found: ${missing_languages}
1249 The available languages are: ${potential_languages}])
1250   fi
1251
1252   if test "x$new_enable_languages" != "x$enable_languages"; then
1253     echo The following languages will be built: ${new_enable_languages}
1254   fi
1255   enable_languages="$new_enable_languages"
1256   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1257 fi
1258
1259 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1260 # $build_configdirs and $target_configdirs.
1261 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1262
1263 notsupp=""
1264 for dir in . $skipdirs $noconfigdirs ; do
1265   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1266   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1267     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1268     if test -r $srcdir/$dirname/configure ; then
1269       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1270         true
1271       else
1272         notsupp="$notsupp $dir"
1273       fi
1274     fi
1275   fi
1276   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1277     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1278     if test -r $srcdir/$dirname/configure ; then
1279       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1280         true
1281       else
1282         notsupp="$notsupp $dir"
1283       fi
1284     fi
1285   fi
1286   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1287     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1288     if test -r $srcdir/$dirname/configure ; then
1289       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1290         true
1291       else
1292         notsupp="$notsupp $dir"
1293       fi
1294     fi
1295   fi
1296 done
1297
1298 # Sometimes the tools are distributed with libiberty but with no other
1299 # libraries.  In that case, we don't want to build target-libiberty.
1300 if test -n "${target_configdirs}" ; then
1301   others=
1302   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1303     if test "$i" != "libiberty" ; then
1304       if test -r $srcdir/$i/configure ; then
1305         others=yes;
1306         break;
1307       fi
1308     fi
1309   done
1310   if test -z "${others}" ; then
1311     target_configdirs=
1312   fi
1313 fi
1314
1315 # Quietly strip out all directories which aren't configurable in this tree.
1316 # This relies on all configurable subdirectories being autoconfiscated, which
1317 # is now the case.
1318 build_configdirs_all="$build_configdirs"
1319 build_configdirs=
1320 for i in ${build_configdirs_all} ; do
1321   j=`echo $i | sed -e s/build-//g`
1322   if test -f ${srcdir}/$j/configure ; then
1323     build_configdirs="${build_configdirs} $i"
1324   fi
1325 done
1326
1327 configdirs_all="$configdirs"
1328 configdirs=
1329 for i in ${configdirs_all} ; do
1330   if test -f ${srcdir}/$i/configure ; then
1331     configdirs="${configdirs} $i"
1332   fi
1333 done
1334
1335 target_configdirs_all="$target_configdirs"
1336 target_configdirs=
1337 for i in ${target_configdirs_all} ; do
1338   j=`echo $i | sed -e s/target-//g`
1339   if test -f ${srcdir}/$j/configure ; then
1340     target_configdirs="${target_configdirs} $i"
1341   fi
1342 done
1343
1344 # Produce a warning message for the subdirs we can't configure.
1345 # This isn't especially interesting in the Cygnus tree, but in the individual
1346 # FSF releases, it's important to let people know when their machine isn't
1347 # supported by the one or two programs in a package.
1348
1349 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1350   # If $appdirs is non-empty, at least one of those directories must still
1351   # be configured, or we error out.  (E.g., if the gas release supports a
1352   # specified target in some subdirs but not the gas subdir, we shouldn't
1353   # pretend that all is well.)
1354   if test -n "$appdirs" ; then
1355     for dir in $appdirs ; do
1356       if test -r $dir/Makefile.in ; then
1357         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1358           appdirs=""
1359           break
1360         fi
1361         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1362           appdirs=""
1363           break
1364         fi
1365       fi
1366     done
1367     if test -n "$appdirs" ; then
1368       echo "*** This configuration is not supported by this package." 1>&2
1369       exit 1
1370     fi
1371   fi
1372   # Okay, some application will build, or we don't care to check.  Still
1373   # notify of subdirs not getting built.
1374   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1375   echo "    ${notsupp}" 1>&2
1376   echo "    (Any other directories should still work fine.)" 1>&2
1377 fi
1378
1379 case "$host" in
1380   *msdosdjgpp*)
1381     enable_gdbtk=no ;;
1382 esac
1383
1384 copy_dirs=
1385
1386 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1387 # the named directory are copied to $(tooldir)/sys-include.
1388 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1389   if test x${is_cross_compiler} = xno ; then
1390     echo 1>&2 '***' --with-headers is only supported when cross compiling
1391     exit 1
1392   fi
1393   if test x"${with_headers}" != xyes ; then
1394     case "${exec_prefixoption}" in
1395     "") x=${prefix} ;;
1396     *) x=${exec_prefix} ;;
1397     esac
1398     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1399   fi
1400 fi
1401
1402 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1403 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1404 # are permitted.
1405 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1406   if test x${is_cross_compiler} = xno ; then
1407     echo 1>&2 '***' --with-libs is only supported when cross compiling
1408     exit 1
1409   fi
1410   if test x"${with_libs}" != xyes ; then
1411     # Copy the libraries in reverse order, so that files in the first named
1412     # library override files in subsequent libraries.
1413     case "${exec_prefixoption}" in
1414     "") x=${prefix} ;;
1415     *) x=${exec_prefix} ;;
1416     esac
1417     for l in ${with_libs}; do
1418       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1419     done
1420   fi
1421 fi
1422
1423 # Handle ${copy_dirs}
1424 set fnord ${copy_dirs}
1425 shift
1426 while test $# != 0 ; do
1427   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1428     :
1429   else
1430     echo Copying $1 to $2
1431
1432     # Use the install script to create the directory and all required
1433     # parent directories.
1434     if test -d $2 ; then
1435       :
1436     else
1437       echo >config.temp
1438       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1439     fi
1440
1441     # Copy the directory, assuming we have tar.
1442     # FIXME: Should we use B in the second tar?  Not all systems support it.
1443     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1444
1445     # It is the responsibility of the user to correctly adjust all
1446     # symlinks.  If somebody can figure out how to handle them correctly
1447     # here, feel free to add the code.
1448
1449     echo $1 > $2/COPIED
1450   fi
1451   shift; shift
1452 done
1453
1454 extra_arflags_for_target=
1455 extra_nmflags_for_target=
1456 extra_ranlibflags_for_target=
1457 target_makefile_frag=/dev/null
1458 case "${target}" in
1459   *-*-netware*)
1460     target_makefile_frag="config/mt-netware"
1461     ;;
1462   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1463     target_makefile_frag="config/mt-gnu"
1464     ;;
1465   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1466     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1467     # commands to handle both 32-bit and 64-bit objects.  These flags are
1468     # harmless if we're using GNU nm or ar.
1469     extra_arflags_for_target=" -X32_64"
1470     extra_nmflags_for_target=" -B -X32_64"
1471     ;;
1472   *-*-darwin*)
1473     # ranlib from Darwin requires the -c flag to look at common symbols.
1474     extra_ranlibflags_for_target=" -c"
1475     ;;
1476   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1477     target_makefile_frag="config/mt-wince"
1478     ;;
1479 esac
1480
1481 alphaieee_frag=/dev/null
1482 case $target in
1483   alpha*-*-*)
1484     # This just makes sure to use the -mieee option to build target libs.
1485     # This should probably be set individually by each library.
1486     alphaieee_frag="config/mt-alphaieee"
1487     ;;
1488 esac
1489
1490 # If --enable-target-optspace always use -Os instead of -O2 to build
1491 # the target libraries, similarly if it is not specified, use -Os
1492 # on selected platforms.
1493 ospace_frag=/dev/null
1494 case "${enable_target_optspace}:${target}" in
1495   yes:*)
1496     ospace_frag="config/mt-ospace"
1497     ;;
1498   :d30v-*)
1499     ospace_frag="config/mt-d30v"
1500     ;;
1501   :m32r-* | :d10v-* | :fr30-*)
1502     ospace_frag="config/mt-ospace"
1503     ;;
1504   no:* | :*)
1505     ;;
1506   *)
1507     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1508     ;;
1509 esac
1510
1511 # Set with_gnu_as and with_gnu_ld as appropriate.
1512 #
1513 # This is done by determining whether or not the appropriate directory
1514 # is available, and by checking whether or not specific configurations
1515 # have requested that this magic not happen.
1516 #
1517 # The command line options always override the explicit settings in
1518 # configure.in, and the settings in configure.in override this magic.
1519 #
1520 # If the default for a toolchain is to use GNU as and ld, and you don't
1521 # want to do that, then you should use the --without-gnu-as and
1522 # --without-gnu-ld options for the configure script.
1523
1524 if test x${use_gnu_as} = x &&
1525    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1526   with_gnu_as=yes
1527   extra_host_args="$extra_host_args --with-gnu-as"
1528 fi
1529
1530 if test x${use_gnu_ld} = x &&
1531    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1532   with_gnu_ld=yes
1533   extra_host_args="$extra_host_args --with-gnu-ld"
1534 fi
1535
1536 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1537 # can detect this case.
1538
1539 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1540   with_newlib=yes
1541   extra_host_args="$extra_host_args --with-newlib"
1542 fi
1543
1544 # Default to using --with-stabs for certain targets.
1545 if test x${with_stabs} = x ; then
1546   case "${target}" in
1547   mips*-*-irix[[56]]*)
1548     ;;
1549   mips*-*-* | alpha*-*-osf*)
1550     with_stabs=yes;
1551     extra_host_args="${extra_host_args} --with-stabs"
1552     ;;
1553   esac
1554 fi
1555
1556 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1557 # them automatically.
1558 case "${host}" in
1559   hppa*64*-*-hpux11*)
1560     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1561     ;;
1562 esac
1563
1564 # Some systems (e.g., one of the i386-aix systems the gas testers are
1565 # using) don't handle "\$" correctly, so don't use it here.
1566 tooldir='${exec_prefix}'/${target_alias}
1567 build_tooldir=${tooldir}
1568
1569 # Generate default definitions for YACC, M4, LEX and other programs that run
1570 # on the build machine.  These are used if the Makefile can't locate these
1571 # programs in objdir.
1572 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
1573 AC_CHECK_PROGS([CONFIGURED_BISON], [bison], [$MISSING bison])
1574 AC_CHECK_PROGS([CONFIGURED_YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
1575 AC_CHECK_PROGS([CONFIGURED_M4], [gm4 gnum4 m4], [$MISSING m4])
1576 AC_CHECK_PROGS([CONFIGURED_FLEX], [flex], [$MISSING flex])
1577 AC_CHECK_PROGS([CONFIGURED_LEX], [flex lex], [$MISSING flex])
1578 AC_CHECK_PROGS([CONFIGURED_MAKEINFO], makeinfo, [$MISSING makeinfo])
1579
1580 # Create a .gdbinit file which runs the one in srcdir
1581 # and tells GDB to look there for source files.
1582
1583 if test -r ${srcdir}/.gdbinit ; then
1584   case ${srcdir} in
1585     .) ;;
1586     *) cat > ./.gdbinit <<EOF
1587 # ${NO_EDIT}
1588 dir ${srcdir}
1589 dir .
1590 source ${srcdir}/.gdbinit
1591 EOF
1592     ;;
1593   esac
1594 fi
1595
1596 # Make sure that the compiler is able to generate an executable.  If it
1597 # can't, we are probably in trouble.  We don't care whether we can run the
1598 # executable--we might be using a cross compiler--we only care whether it
1599 # can be created.  At this point the main configure script has set CC.
1600 we_are_ok=no
1601 echo "int main () { return 0; }" > conftest.c
1602 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1603 if test $? = 0 ; then
1604   if test -s conftest || test -s conftest.exe ; then
1605     we_are_ok=yes
1606   fi
1607 fi
1608 case $we_are_ok in
1609   no)
1610     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1611     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1612     rm -f conftest*
1613     exit 1
1614     ;;
1615 esac
1616 rm -f conftest*
1617
1618 # The Solaris /usr/ucb/cc compiler does not appear to work.
1619 case "${host}" in
1620   sparc-sun-solaris2*)
1621       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1622       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1623           could_use=
1624           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1625           if test -d /opt/cygnus/bin ; then
1626               if test "$could_use" = "" ; then
1627                   could_use="/opt/cygnus/bin"
1628               else
1629                   could_use="$could_use or /opt/cygnus/bin"
1630               fi
1631           fi
1632         if test "$could_use" = "" ; then
1633             echo "Warning: compilation may fail because you're using"
1634             echo "/usr/ucb/cc.  You should change your PATH or CC "
1635             echo "variable and rerun configure."
1636         else
1637             echo "Warning: compilation may fail because you're using"
1638             echo "/usr/ucb/cc, when you should use the C compiler from"
1639             echo "$could_use.  You should change your"
1640             echo "PATH or CC variable and rerun configure."
1641         fi
1642       fi
1643   ;;
1644 esac
1645
1646 # If no --enable-shared nor --disable-shared is specified, we set up
1647 # LD_LIBRARY_PATH when we build for gcc.
1648 case $enable_shared in
1649 "")
1650   if test -d ${srcdir}/gcc; then
1651     set_lib_path=yes
1652   else
1653     set_lib_path=no
1654   fi
1655   ;;
1656 *)
1657   set_lib_path=$enable_shared
1658   ;;
1659 esac
1660
1661 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
1662 # binutils tools will find libbfd.so.
1663 case "${set_lib_path}" in
1664   no) SET_LIB_PATH= ;;
1665   *) SET_LIB_PATH="\$(REALLY_SET_LIB_PATH)" ;;
1666 esac
1667
1668 case "${host}" in
1669   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1670   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1671 esac
1672
1673 # Record target_configdirs and the configure arguments for target and
1674 # build configuration in Makefile.
1675 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1676 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1677
1678 # Determine whether gdb needs tk/tcl or not.
1679 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1680 # and in that case we want gdb to be built without tk.  Ugh!
1681 # In fact I believe gdb is the *only* package directly dependent on tk,
1682 # so we should be able to put the 'maybe's in unconditionally and
1683 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1684 # 100% sure that that's safe though.
1685
1686 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1687 case "$enable_gdbtk" in
1688   no)
1689     GDB_TK="" ;;
1690   yes)
1691     GDB_TK="${gdb_tk}" ;;
1692   *)
1693     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1694     # distro.  Eventually someone will fix this and move Insight, nee
1695     # gdbtk to a separate directory.
1696     if test -d ${srcdir}/gdb/gdbtk ; then
1697       GDB_TK="${gdb_tk}"
1698     else
1699       GDB_TK=""
1700     fi
1701     ;;
1702 esac
1703
1704 # Strip out unwanted targets.
1705
1706 # While at that, we remove Makefiles if we were started for recursive
1707 # configuration, so that the top-level Makefile reconfigures them,
1708 # like we used to do when configure itself was recursive.
1709
1710 # Loop over modules.  $extrasub must be used with care, limiting as
1711 # much as possible the usage of range addresses.  That's because autoconf
1712 # splits the sed script to overcome limits in the number of commands,
1713 # and relying on carefully-timed sed passes may turn out to be very hard
1714 # to maintain later.  In this particular case, you just have to be careful
1715 # not to nest @if/@endif pairs, because configure will not warn you at all.
1716
1717 AC_ARG_ENABLE([bootstrap],
1718 [  --enable-bootstrap[=lean]     Enable bootstrapping [no]],,
1719 enable_bootstrap=default)
1720
1721 # Issue errors and warnings for invalid/strange bootstrap combinations.
1722 case "$configdirs" in
1723   *gcc*) have_compiler=yes ;;
1724   *) have_compiler=no ;;
1725 esac
1726
1727 case "$have_compiler:$host:$target:$enable_bootstrap" in
1728   *:*:*:no) ;;
1729
1730   # Default behavior.  (We'll) enable bootstrap if we have a compiler
1731   # and we are in a native configuration.
1732   yes:$build:$build:default)
1733     # This will become 'yes'
1734     enable_bootstrap=no ;;
1735
1736   *:*:*:default)
1737     enable_bootstrap=no ;;
1738
1739   # We have a compiler and we are in a native configuration, bootstrap is ok
1740   yes:$build:$build:yes | yes:$build:$build:lean)
1741     ;;
1742
1743   # Other configurations, but we have a compiler.  Assume the user knows
1744   # what he's doing.
1745   yes:*:*:yes | yes:*:*:lean)
1746     AC_MSG_WARN([trying to bootstrap a cross compiler])
1747     ;;
1748
1749   # No compiler: if they passed --enable-bootstrap explicitly, fail
1750   no:*:*:yes | no:*:*:lean)
1751     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1752
1753   # Fail if wrong command line
1754   *)
1755     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1756     ;;
1757 esac
1758
1759 # Adjust the toplevel makefile according to whether bootstrap was selected.
1760 case "$enable_bootstrap" in
1761   yes)
1762     bootstrap_lean='#'
1763     default_target=bootstrap
1764     bootstrap_suffix=bootstrap ;;
1765   lean)
1766     bootstrap_lean=''
1767     default_target=bootstrap
1768     bootstrap_suffix=bootstrap ;;
1769   no)
1770     default_target=all
1771     bootstrap_suffix=no-bootstrap ;;
1772 esac
1773 AC_SUBST(bootstrap_lean)
1774 AC_SUBST(default_target)
1775
1776 for module in ${build_configdirs} ; do
1777   if test -z "${no_recursion}" \
1778      && test -f ${build_subdir}/${module}/Makefile; then
1779     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1780     rm -f ${build_subdir}/${module}/Makefile
1781   fi
1782   extrasub="$extrasub
1783 /^@if build-$module\$/d
1784 /^@endif build-$module\$/d
1785 /^@if build-$module-$bootstrap_suffix\$/d
1786 /^@endif build-$module-$bootstrap_suffix\$/d"
1787 done
1788 for module in ${configdirs} ; do
1789   if test -z "${no_recursion}" \
1790      && test -f ${module}/Makefile; then
1791     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1792     rm -f ${module}/Makefile
1793   fi
1794   extrasub="$extrasub
1795 /^@if $module\$/d
1796 /^@endif $module\$/d
1797 /^@if $module-$bootstrap_suffix\$/d
1798 /^@endif $module-$bootstrap_suffix\$/d"
1799 done
1800 for module in ${target_configdirs} ; do
1801   if test -z "${no_recursion}" \
1802      && test -f ${target_subdir}/${module}/Makefile; then
1803     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1804     rm -f ${target_subdir}/${module}/Makefile
1805   fi
1806   extrasub="$extrasub
1807 /^@if target-$module\$/d
1808 /^@endif target-$module\$/d
1809 /^@if target-$module-$bootstrap_suffix\$/d
1810 /^@endif target-$module-$bootstrap_suffix\$/d"
1811 done
1812
1813 extrasub="$extrasub
1814 /^@if /,/^@endif /d"
1815
1816 # Create the serialization dependencies.  This uses a temporary file.
1817
1818 AC_ARG_ENABLE([serial-configure],
1819 [  --enable-serial-[{host,target,build}-]configure
1820                           Force sequential configuration of
1821                           sub-packages for the host, target or build
1822                           machine, or all sub-packages])
1823
1824 case ${enable_serial_configure} in
1825   yes)
1826     enable_serial_build_configure=yes
1827     enable_serial_host_configure=yes
1828     enable_serial_target_configure=yes
1829     ;;
1830 esac
1831
1832 # These force 'configure's to be done one at a time, to avoid problems
1833 # with contention over a shared config.cache.
1834 rm -f serdep.tmp
1835 echo '# serdep.tmp' > serdep.tmp
1836 olditem=
1837 test "x${enable_serial_build_configure}" = xyes &&
1838 for item in ${build_configdirs} ; do
1839   case ${olditem} in
1840     "") ;;
1841     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1842   esac
1843   olditem=${item}
1844 done
1845 olditem=
1846 test "x${enable_serial_host_configure}" = xyes &&
1847 for item in ${configdirs} ; do
1848   case ${olditem} in
1849     "") ;;
1850     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1851   esac
1852   olditem=${item}
1853 done
1854 olditem=
1855 test "x${enable_serial_target_configure}" = xyes &&
1856 for item in ${target_configdirs} ; do
1857   case ${olditem} in
1858     "") ;;
1859     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1860   esac
1861   olditem=${item}
1862 done
1863 serialization_dependencies=serdep.tmp
1864 AC_SUBST_FILE(serialization_dependencies)
1865
1866 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1867 # target and nonopt.  These are the ones we might not want to pass
1868 # down to subconfigures.  Also strip program-prefix, program-suffix,
1869 # and program-transform-name, so that we can pass down a consistent
1870 # program-transform-name.  If autoconf has put single quotes around
1871 # any of these arguments (because they contain shell metacharacters)
1872 # then this will fail; in practice this only happens for
1873 # --program-transform-name, so be sure to override --program-transform-name
1874 # at the end of the argument list.
1875 # These will be expanded by make, so quote '$'.
1876 cat <<\EOF_SED > conftestsed
1877 s/ --no[[^ ]]*/ /g
1878 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1879 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1880 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1881 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1882 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1883 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1884 s/ -cache-file[[= ]][[^ ]]*//g
1885 s/ -srcdir[[= ]][[^ ]]*//g
1886 s/ -host[[= ]][[^ ]]*//g
1887 s/ -build[[= ]][[^ ]]*//g
1888 s/ -target[[= ]][[^ ]]*//g
1889 s/ -program-prefix[[= ]][[^ ]]*//g
1890 s/ -program-suffix[[= ]][[^ ]]*//g
1891 s/ -program-transform-name[[= ]][[^ ]]*//g
1892 s/ [[^' -][^ ]*] / /
1893 s/^ *//;s/ *$//
1894 s,\$,$$,g
1895 EOF_SED
1896 sed -f conftestsed <<EOF_SED > conftestsed.out
1897  ${ac_configure_args}
1898 EOF_SED
1899 baseargs=`cat conftestsed.out`
1900 rm -f conftestsed conftestsed.out
1901
1902 # Add in --program-transform-name, after --program-prefix and
1903 # --program-suffix have been applied to it.  Autoconf has already
1904 # doubled dollar signs and backslashes in program_transform_name; we want
1905 # the backslashes un-doubled, and then the entire thing wrapped in single
1906 # quotes, because this will be expanded first by make and then by the shell.
1907 # Also, because we want to override the logic in subdir configure scripts to
1908 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1909 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1910 ${program_transform_name}
1911 EOF_SED
1912 gcc_transform_name=`cat conftestsed.out`
1913 rm -f conftestsed.out
1914 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1915
1916 # For the build-side libraries, we just need to pretend we're native,
1917 # and not use the same cache file.  Multilibs are neither needed nor
1918 # desired.
1919 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
1920
1921 # For host modules, accept cache file option, or specification as blank.
1922 case "${cache_file}" in
1923 "") # empty
1924   cache_file_option="" ;;
1925 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1926   cache_file_option="--cache-file=${cache_file}" ;;
1927 *) # relative path
1928   cache_file_option="--cache-file=../${cache_file}" ;;
1929 esac
1930
1931 # Host dirs don't like to share a cache file either, horribly enough.
1932 # This seems to be due to autoconf 2.5x stupidity.
1933 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1934
1935 target_configargs=${baseargs}
1936
1937 # Passing a --with-cross-host argument lets the target libraries know
1938 # whether they are being built with a cross-compiler or being built
1939 # native.  However, it would be better to use other mechanisms to make the
1940 # sorts of decisions they want to make on this basis.  Please consider
1941 # this option to be deprecated.  FIXME.
1942 if test x${is_cross_compiler} = xyes ; then
1943   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1944 fi
1945
1946 # Default to --enable-multilib.
1947 if test x${enable_multilib} = x ; then
1948   target_configargs="--enable-multilib ${target_configargs}"
1949 fi
1950
1951 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1952 # changed from the earlier setting of with_newlib.
1953 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1954   target_configargs="--with-newlib ${target_configargs}"
1955 fi
1956
1957 # Different target subdirs use different values of certain variables
1958 # (notably CXX).  Worse, multilibs use *lots* of different values.
1959 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1960 # it doesn't automatically accept command-line overrides of them.
1961 # This means it's not safe for target subdirs to share a cache file,
1962 # which is disgusting, but there you have it.  Hopefully this can be
1963 # fixed in future.  It's still worthwhile to use a cache file for each
1964 # directory.  I think.
1965
1966 # Pass the appropriate --host, --build, and --cache-file arguments.
1967 target_configargs="--cache-file=./config.cache --host=${target_alias} --build=${build_alias} ${target_configargs}"
1968
1969 # provide a proper gxx_include_dir.
1970 TL_AC_GXX_INCLUDE_DIR
1971
1972 FLAGS_FOR_TARGET=
1973 case " $target_configdirs " in
1974  *" newlib "*)
1975   case " $target_configargs " in
1976   *" --with-newlib "*)
1977    case "$target" in
1978    *-cygwin*)
1979      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' ;;
1980    esac
1981
1982    # If we're not building GCC, don't discard standard headers.
1983    if test -d ${srcdir}/gcc; then
1984      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1985
1986      if test "${build}" != "${host}"; then
1987        # On Canadian crosses, CC_FOR_TARGET will have already been set
1988        # by `configure', so we won't have an opportunity to add -Bgcc/
1989        # to it.  This is right: we don't want to search that directory
1990        # for binaries, but we want the header files in there, so add
1991        # them explicitly.
1992        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
1993
1994        # Someone might think of using the pre-installed headers on
1995        # Canadian crosses, in case the installed compiler is not fully
1996        # compatible with the compiler being built.  In this case, it
1997        # would be better to flag an error than risking having
1998        # incompatible object files being constructed.  We can't
1999        # guarantee that an error will be flagged, but let's hope the
2000        # compiler will do it, when presented with incompatible header
2001        # files.
2002      fi
2003    fi
2004
2005    case "${target}-${is_cross_compiler}" in
2006    i[[3456789]]86-*-linux*-no)
2007       # Here host == target, so we don't need to build gcc,
2008       # so we don't want to discard standard headers.
2009       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2010       ;;
2011    *)
2012       # If we're building newlib, use its generic headers last, but search
2013       # for any libc-related directories first (so make it the last -B
2014       # switch).
2015       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2016       ;;
2017    esac
2018    ;;
2019   esac
2020   ;;
2021 esac
2022
2023 # Allow the user to override the flags for
2024 # our build compiler if desired.
2025 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2026
2027 # On Canadian crosses, we'll be searching the right directories for
2028 # the previously-installed cross compiler, so don't bother to add
2029 # flags for directories within the install tree of the compiler
2030 # being built; programs in there won't even run.
2031 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2032   # Search for pre-installed headers if nothing else fits.
2033   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2034 fi
2035
2036 if test "x${use_gnu_ld}" = x &&
2037    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2038   # Arrange for us to find uninstalled linker scripts.
2039   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2040 fi
2041
2042 if test "x${CC_FOR_TARGET+set}" = xset; then
2043   :
2044 elif test -d ${srcdir}/gcc; then
2045   CC_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/'
2046 elif test "$host" = "$target"; then
2047   CC_FOR_TARGET='$(CC)'
2048 else
2049   CC_FOR_TARGET=`echo gcc | sed "${program_transform_name}"`
2050 fi
2051 CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2052
2053 if test "x${GCJ_FOR_TARGET+set}" = xset; then
2054   :
2055 elif test -d ${srcdir}/gcc; then
2056   GCJ_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/'
2057 elif test "$host" = "$target"; then
2058   GCJ_FOR_TARGET='gcj'
2059 else
2060   GCJ_FOR_TARGET=`echo gcj | sed "${program_transform_name}"`
2061 fi
2062 GCJ_FOR_TARGET=$GCJ_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2063
2064 if test "x${GFORTRAN_FOR_TARGET+set}" = xset; then
2065   :
2066 elif test -d ${srcdir}/gcc; then
2067   GFORTRAN_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/'
2068 elif test "$host" = "$target"; then
2069   GFORTRAN_FOR_TARGET='gfortran'
2070 else
2071   GFORTRAN_FOR_TARGET=`echo gfortran | sed "${program_transform_name}"`
2072 fi
2073 case $GFORTRAN_FOR_TARGET in
2074 *' $(FLAGS_FOR_TARGET)') ;;
2075 *) GFORTRAN_FOR_TARGET=$GFORTRAN_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
2076 esac
2077
2078 # Don't use libstdc++-v3's flags to configure/build itself.
2079 libstdcxx_flags='`test ! -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags || $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2080 raw_libstdcxx_flags='-L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2081
2082 if test "x${CXX_FOR_TARGET+set}" = xset; then
2083   if test "x${RAW_CXX_FOR_TARGET+set}" != xset; then
2084     RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2085   fi
2086 elif test -d ${srcdir}/gcc; then
2087   # We add -shared-libgcc to CXX_FOR_TARGET whenever we use xgcc instead
2088   # of g++ for linking C++ or Java, because g++ has -shared-libgcc by
2089   # default whereas gcc does not.
2090   # RAW_CXX_FOR_TARGET is for linking C++ or java; CXX_FOR_TARGET is for
2091   # all other cases.
2092   CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ '$libstdcxx_flags
2093   RAW_CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ '$raw_libstdcxx_flags
2094 elif test "$host" = "$target"; then
2095   CXX_FOR_TARGET='$(CXX)'
2096   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2097 else
2098   CXX_FOR_TARGET=`echo c++ | sed "${program_transform_name}"`
2099   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2100 fi
2101 CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2102 RAW_CXX_FOR_TARGET=$RAW_CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2103
2104 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2105 qRAW_CXX_FOR_TARGET=`echo "$RAW_CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2106
2107 # We want to defer the evaluation of `cmd`s and shell variables in
2108 # CXX_FOR_TARGET when recursing in the top-level Makefile, such as for
2109 # bootstrap.  We'll enclose CXX_FOR_TARGET_FOR_RECURSIVE_MAKE in single
2110 # quotes, but we still have to duplicate `$'s so that shell variables
2111 # can be expanded by the nested make as shell variables, not as make
2112 # macros.
2113 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2114 qqRAW_CXX_FOR_TARGET=`echo "$qRAW_CXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2115
2116 # Wrap CC_FOR_TARGET and friends, for certain types of builds.
2117 CC_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${CC_FOR_TARGET}"
2118 GCJ_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GCJ_FOR_TARGET}"
2119 GFORTRAN_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GFORTRAN_FOR_TARGET}"
2120 CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qCXX_FOR_TARGET}"
2121 RAW_CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qRAW_CXX_FOR_TARGET}"
2122 CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqCXX_FOR_TARGET}"
2123 RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqRAW_CXX_FOR_TARGET}"
2124
2125 # Makefile fragments.
2126 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2127 do
2128   eval fragval=\$$frag
2129   if test $fragval != /dev/null; then
2130     eval $frag=${srcdir}/$fragval
2131   fi
2132 done
2133 AC_SUBST_FILE(host_makefile_frag)
2134 AC_SUBST_FILE(target_makefile_frag)
2135 AC_SUBST_FILE(alphaieee_frag)
2136 AC_SUBST_FILE(ospace_frag)
2137
2138 # Miscellanea: directories, flags, etc.
2139 AC_SUBST(SET_LIB_PATH)
2140 AC_SUBST(RPATH_ENVVAR)
2141 AC_SUBST(BUILD_PREFIX)
2142 AC_SUBST(BUILD_PREFIX_1)
2143 AC_SUBST(tooldir)
2144 AC_SUBST(build_tooldir)
2145 AC_SUBST(GDB_TK)
2146
2147 # Build module lists & subconfigure args.
2148 AC_SUBST(build_configargs)
2149 AC_SUBST(build_configdirs)
2150
2151 # Host module lists & subconfigure args.
2152 AC_SUBST(host_configargs)
2153 AC_SUBST(configdirs)
2154
2155 # Target module lists & subconfigure args.
2156 AC_SUBST(target_configargs)
2157 AC_SUBST(target_configdirs)
2158
2159 # Build tools.
2160 AC_SUBST(CC_FOR_BUILD)
2161 AC_SUBST(config_shell)
2162
2163 # Host tools.
2164 NCN_STRICT_CHECK_TOOL(AR, ar)
2165 NCN_STRICT_CHECK_TOOL(AS, as)
2166 NCN_STRICT_CHECK_TOOL(DLLTOOL, dlltool)
2167 NCN_STRICT_CHECK_TOOL(LD, ld)
2168 NCN_STRICT_CHECK_TOOL(NM, nm)
2169 NCN_STRICT_CHECK_TOOL(RANLIB, ranlib, :)
2170 NCN_STRICT_CHECK_TOOL(WINDRES, windres)
2171 NCN_STRICT_CHECK_TOOL(OBJCOPY, objcopy)
2172 NCN_STRICT_CHECK_TOOL(OBJDUMP, objdump)
2173 AC_SUBST(CC)
2174 AC_SUBST(CXX)
2175 AC_SUBST(CFLAGS)
2176 AC_SUBST(CFLAGS_FOR_BUILD)
2177 AC_SUBST(CXXFLAGS)
2178
2179 # Target tools.
2180 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AR_FOR_TARGET, ar)
2181 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AS_FOR_TARGET, as)
2182 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_DLLTOOL_FOR_TARGET, dlltool)
2183 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_LD_FOR_TARGET, ld)
2184 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_NM_FOR_TARGET, nm)
2185 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_RANLIB_FOR_TARGET, ranlib, :)
2186 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_WINDRES_FOR_TARGET, windres)
2187
2188 AC_SUBST(GCC_FOR_TARGET)
2189 AC_SUBST(FLAGS_FOR_TARGET)
2190 AC_SUBST(CC_FOR_TARGET)
2191 AC_SUBST(GCJ_FOR_TARGET)
2192 AC_SUBST(GFORTRAN_FOR_TARGET)
2193 AC_SUBST(CXX_FOR_TARGET)
2194 AC_SUBST(RAW_CXX_FOR_TARGET)
2195 AC_SUBST(CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2196 AC_SUBST(RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2197
2198 # Fix up target tools.
2199 if test "x${build}" = "x${host}" ; then
2200   # In this case, the newly built tools can and should be used,
2201   # so we override the results of the autoconf tests.
2202   # This should really only happen when the tools are actually being built,
2203   # but that's a further refinement.  The new build scheme, where
2204   # tools are built into a structure paralleling where they're installed,
2205   # should also eliminate all of this cleanly.
2206   AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
2207   AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
2208   DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
2209   LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
2210   NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
2211   RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
2212   WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
2213 else
2214   # Just use the ones we found.
2215   AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)"
2216   AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)"
2217   DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)"
2218   LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)"
2219   NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)"
2220   RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)"
2221   WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)"
2222 fi
2223 AC_SUBST(AR_FOR_TARGET)
2224 AC_SUBST(AS_FOR_TARGET)
2225 AC_SUBST(DLLTOOL_FOR_TARGET)
2226 AC_SUBST(LD_FOR_TARGET)
2227 AC_SUBST(NM_FOR_TARGET)
2228 AC_SUBST(RANLIB_FOR_TARGET)
2229 AC_SUBST(WINDRES_FOR_TARGET)
2230
2231 # Certain tools may need extra flags.
2232 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2233 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2234 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2235
2236 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2237 AC_ARG_ENABLE(maintainer-mode,
2238 [  --enable-maintainer-mode enable make rules and dependencies not useful
2239                           (and sometimes confusing) to the casual installer],
2240       USE_MAINTAINER_MODE=$enableval,
2241       USE_MAINTAINER_MODE=no)
2242 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2243 AC_SUBST(MAINTAINER_MODE_TRUE)
2244 AC_SUBST(MAINTAINER_MODE_FALSE)
2245 if test "$USE_MAINTAINER_MODE" = yes; then
2246   MAINTAINER_MODE_TRUE=
2247   MAINTAINER_MODE_FALSE='#'
2248 else
2249   MAINTAINER_MODE_TRUE='#'
2250   MAINTAINER_MODE_FALSE=
2251 fi
2252 MAINT=$MAINTAINER_MODE_TRUE
2253 AC_SUBST(MAINT)dnl
2254
2255 # ---------------------
2256 # GCC bootstrap support
2257 # ---------------------
2258
2259 # Stage specific cflags for build.
2260 stage1_cflags="-g"
2261 case $build in
2262   vax-*-*)
2263     case ${GCC} in
2264       yes) stage1_cflags="-g -Wa,-J" ;;
2265       *) stage1_cflags="-g -J" ;;
2266     esac ;;
2267   powerpc-*-darwin*)
2268     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2269     # sources; use -no-cpp-precomp to get to GNU cpp.
2270     # Apple's GCC has bugs in designated initializer handling, so disable
2271     # that too.
2272     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2273     ;;
2274 esac
2275 AC_SUBST(stage1_cflags)
2276
2277 # It makes debugging easier if we create as symlinks the stage directories
2278 # gcc for stageN-gcc and stagePREV-gcc for stage(N-1).  In case this is not
2279 # possible, however, we can resort to mv.
2280 AC_CACHE_CHECK([if symbolic links between directories work],
2281 [gcc_cv_prog_ln_s_dir],
2282 [if test "${LN_S}" = "ln -s" \
2283    && mkdir confdir.s1 \
2284    && ln -s confdir.s1 confdir.s2 \
2285    && echo timestamp1 > confdir.s1/conftest.1 \
2286    && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
2287    && echo timestamp2 > confdir.s2/conftest.2 \
2288    && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
2289    && rm -f confdir.s2; then
2290   gcc_cv_prog_ln_s_dir=yes
2291 else
2292   gcc_cv_prog_ln_s_dir=no
2293 fi
2294 rm -rf confdir.s1 confdir.s2])
2295
2296 case ${gcc_cv_prog_ln_s_dir} in
2297   yes)
2298     CREATE_LINK_TO_DIR='ln -s $$1 $$2'
2299     UNDO_LINK_TO_DIR='rm -f $$1' ;;
2300   *)
2301     CREATE_LINK_TO_DIR='mv $$1 $$2'
2302     UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
2303 esac
2304 AC_SUBST(CREATE_LINK_TO_DIR)
2305 AC_SUBST(UNDO_LINK_TO_DIR)
2306
2307 # Enable -Werror in bootstrap stage2 and later.
2308 # Change the default to "no" on release branches.
2309 AC_ARG_ENABLE(werror,
2310 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2311 [enable_werror=yes])
2312 case ${enable_werror} in
2313   yes) stage2_werror_flag="--enable-werror-always" ;;
2314   *) stage2_werror_flag="" ;;
2315 esac
2316 AC_SUBST(stage2_werror_flag)
2317
2318 # If gcc is built natively with shared library enabled, set
2319 # $RPATH_ENVVAR to make sure the newly built gcc shared librares are
2320 # used.
2321 SET_GCC_LIB_PATH=
2322 if test -d ${srcdir}/gcc && test x${is_cross_compiler} = xno; then
2323   case "${set_lib_path}" in
2324     no) ;;
2325     *)
2326       eval "d=\$$RPATH_ENVVAR"
2327       if test x"$d" != x; then
2328         d="$pwd/gcc:$d"
2329       else
2330         d="$pwd/gcc"
2331     fi
2332     SET_GCC_LIB_PATH="\$(RPATH_ENVVAR)=$d; export \$(RPATH_ENVVAR);"
2333     ;;
2334   esac
2335 fi
2336 AC_SUBST(SET_GCC_LIB_PATH)
2337
2338 AC_OUTPUT(Makefile)