configure.in

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