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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17
  18 ##############################################################################
  19 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
  20
  21 sinclude(config/acx.m4)
  22
  23 AC_INIT(move-if-change)
  24 AC_PREREQ(2.13)
  25 AC_CANONICAL_SYSTEM
  26 AC_ARG_PROGRAM
  27
  28 # Get 'install' or 'install-sh' and its variants.
  29 AC_PROG_INSTALL
  30 ACX_PROG_LN
  31 AC_PROG_LN_S
  32
  33 ### we might need to use some other shell than /bin/sh for running subshells
  34 ### If we are on Windows, search for the shell.  This will permit people
  35 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  36 ### without also having to set CONFIG_SHELL.  This code will work when
  37 ### using bash, which sets OSTYPE.
  38 case "${OSTYPE}" in
  39 *win32*)
  40   if test x${CONFIG_SHELL} = x ; then
  41     if test ! -f /bin/sh ; then
  42       if test x${SHELL} != x && test -f ${SHELL} ; then
  43         CONFIG_SHELL=${SHELL}
  44         export CONFIG_SHELL
  45       else
  46         for prog in sh sh.exe bash bash.exe; do
  47           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
  48           for dir in $PATH; do
  49             test -z "$dir" && dir=.
  50             if test -f $dir/$prog; then
  51               CONFIG_SHELL=$dir/$prog
  52               export CONFIG_SHELL
  53               break
  54             fi
  55           done
  56           IFS="$save_ifs"
  57           test -n "${CONFIG_SHELL}" && break
  58         done
  59       fi
  60     fi
  61   fi
  62   ;;
  63 esac
  64
  65 config_shell=${CONFIG_SHELL-/bin/sh}
  66
  67 progname=$0
  68 # if PWD already has a value, it is probably wrong.
  69 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  70
  71 # Export original configure arguments for use by sub-configures.  These
  72 # will be expanded by make, so quote '$'.
  73 tmp="$progname $@"
  74 sed -e 's,\$,$$,g' <<EOF_SED > conftestsed.out
  75 $tmp
  76 EOF_SED
  77 TOPLEVEL_CONFIGURE_ARGUMENTS=`cat conftestsed.out`
  78 rm -f conftestsed.out
  79 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
  80
  81 moveifchange=${srcdir}/move-if-change
  82
  83 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
  84
  85 # We pass INSTALL explicitly to sub-makes.  Make sure that it is not
  86 # a relative path.
  87 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
  88   INSTALL="${srcpwd}/install-sh -c"
  89 fi
  90
  91 # Set srcdir to "." if that's what it is.
  92 # This is important for multilib support.
  93 pwd=`${PWDCMD-pwd}`
  94 if test "${pwd}" = "${srcpwd}" ; then
  95   srcdir=.
  96 fi
  97
  98 topsrcdir=$srcpwd
  99
 100 extra_host_args=
 101
 102 ### To add a new directory to the tree, first choose whether it is a target
 103 ### or a host dependent tool.  Then put it into the appropriate list
 104 ### (library or tools, host or target), doing a dependency sort.
 105
 106 # Subdirs will be configured in the order listed in build_configdirs,
 107 # configdirs, or target_configdirs; see the serialization section below.
 108
 109 # Dependency sorting is only needed when *configuration* must be done in
 110 # a particular order.  In all cases a dependency should be specified in
 111 # the Makefile, whether or not it's implicitly specified here.
 112
 113 # Double entries in build_configdirs, configdirs, or target_configdirs may
 114 # cause circular dependencies and break everything horribly.
 115
 116 # these library is used by various programs built for the build
 117 # environment
 118 #
 119 build_libs="build-libiberty"
 120
 121 # these tools are built for the build environment
 122 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
 123
 124 # these libraries are used by various programs built for the host environment
 125 #
 126 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber"
 127
 128 # these tools are built for the host environment
 129 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 130 # know that we are building the simulator.
 131 # binutils, gas and ld appear in that order because it makes sense to run
 132 # "make check" in that particular order.
 133 host_tools="texinfo byacc flex bison binutils gas ld fixincludes gcc sid sim gdb make patch prms send-pr gprof etc expect dejagnu ash bash bzip2 m4 autoconf automake libtool diff rcs fileutils shellutils time textutils wdiff find uudecode hello tar gzip indent recode release sed utils guile perl gawk findutils gettext zip fastjar gnattools"
 134
 135 # libgcj represents the runtime libraries only used by gcj.
 136 libgcj="target-libffi \
 137         target-boehm-gc \
 138         target-zlib \
 139         target-qthreads \
 140         target-libjava"
 141
 142 # these libraries are built for the target environment, and are built after
 143 # the host libraries and the host tools (which may be a cross compiler)
 144 #
 145 target_libraries="target-libiberty \
 146                 target-libgloss \
 147                 target-newlib \
 148                 target-libstdc++-v3 \
 149                 target-libmudflap \
 150                 target-libssp \
 151                 target-libgfortran \
 152                 ${libgcj} \
 153                 target-libobjc \
 154                 target-libada"
 155
 156 # these tools are built using the target libraries, and are intended to
 157 # run only in the target environment
 158 #
 159 # note: any program that *uses* libraries that are in the "target_libraries"
 160 # list belongs in this list.  those programs are also very likely
 161 # candidates for the "native_only" list which follows
 162 #
 163 target_tools="target-examples target-groff target-gperf target-rda"
 164
 165 ################################################################################
 166
 167 ## All tools belong in one of the four categories, and are assigned above
 168 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 169 ## is important because configure will choke if they ever get through.
 170 ## ${configdirs} is directories we build using the host tools.
 171 ## ${target_configdirs} is directories we build using the target tools.
 172 configdirs=`echo ${host_libs} ${host_tools}`
 173 target_configdirs=`echo ${target_libraries} ${target_tools}`
 174 build_configdirs=`echo ${build_libs} ${build_tools}`
 175
 176 ################################################################################
 177
 178 srcname="gnu development package"
 179
 180 # This gets set non-empty for some net releases of packages.
 181 appdirs=""
 182
 183 # Define is_cross_compiler to save on calls to 'test'.
 184 is_cross_compiler=
 185 if test x"${host}" = x"${target}" ; then
 186   is_cross_compiler=no
 187 else
 188   is_cross_compiler=yes
 189 fi
 190
 191 # Find the build and target subdir names.
 192 GCC_TOPLEV_SUBDIRS
 193
 194 # Skipdirs are removed silently.
 195 skipdirs=
 196 # Noconfigdirs are removed loudly.
 197 noconfigdirs=""
 198
 199 use_gnu_ld=
 200 # Make sure we don't let GNU ld be added if we didn't want it.
 201 if test x$with_gnu_ld = xno ; then
 202   use_gnu_ld=no
 203   noconfigdirs="$noconfigdirs ld"
 204 fi
 205
 206 use_gnu_as=
 207 # Make sure we don't let GNU as be added if we didn't want it.
 208 if test x$with_gnu_as = xno ; then
 209   use_gnu_as=no
 210   noconfigdirs="$noconfigdirs gas"
 211 fi
 212
 213 # some tools are so dependent upon X11 that if we're not building with X,
 214 # it's not even worth trying to configure, much less build, that tool.
 215
 216 case ${with_x} in
 217   yes | "") ;; # the default value for this tree is that X11 is available
 218   no)
 219     skipdirs="${skipdirs} tk itcl libgui"
 220     # We won't be able to build gdbtk without X.
 221     enable_gdbtk=no
 222     ;;
 223   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 224 esac
 225
 226 # Some tools are only suitable for building in a "native" situation.
 227 # Remove these if host!=target.
 228 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"
 229
 230 # Similarly, some are only suitable for cross toolchains.
 231 # Remove these if host=target.
 232 cross_only="target-libgloss target-newlib target-opcodes"
 233
 234 case $is_cross_compiler in
 235   no) skipdirs="${skipdirs} ${cross_only}" ;;
 236   yes) skipdirs="${skipdirs} ${native_only}" ;;
 237 esac
 238
 239 # If both --with-headers and --with-libs are specified, default to
 240 # --without-newlib.
 241 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 242    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 243   if test x"${with_newlib}" = x ; then
 244     with_newlib=no
 245   fi
 246 fi
 247
 248 # Recognize --with-newlib/--without-newlib.
 249 case ${with_newlib} in
 250   no) skipdirs="${skipdirs} target-newlib" ;;
 251   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 252 esac
 253
 254 # Configure extra directories which are host specific
 255
 256 case "${host}" in
 257   *-cygwin*)
 258     configdirs="$configdirs libtermcap" ;;
 259 esac
 260
 261 # A target can indicate whether a language isn't supported for some reason.
 262 # Only spaces may be used in this macro; not newlines or tabs.
 263 unsupported_languages=
 264
 265 # Remove more programs from consideration, based on the host or
 266 # target this usually means that a port of the program doesn't
 267 # exist yet.
 268
 269 case "${host}" in
 270   hppa*64*-*-*)
 271     noconfigdirs="$noconfigdirs byacc"
 272     ;;
 273   i[[3456789]]86-*-vsta)
 274     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 275     ;;
 276   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 277     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 278     ;;
 279   i[[3456789]]86-*-mingw32*)
 280     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 281     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 282     ;;
 283   i[[3456789]]86-*-beos*)
 284     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 285     ;;
 286   *-*-cygwin*)
 287     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 288     ;;
 289   *-*-netbsd*)
 290     noconfigdirs="$noconfigdirs rcs"
 291     ;;
 292   ppc*-*-pe)
 293     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 294     ;;
 295   powerpc-*-beos*)
 296     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 297     ;;
 298 esac
 299
 300
 301 AC_ARG_ENABLE(libada,
 302 [  --enable-libada        Builds libada directory],
 303 ENABLE_LIBADA=$enableval,
 304 ENABLE_LIBADA=yes)
 305 if test "${ENABLE_LIBADA}" != "yes" ; then
 306   noconfigdirs="$noconfigdirs target-libada"
 307   noconfigdirs="$noconfigdirs gnattools"
 308 fi
 309
 310 AC_ARG_ENABLE(libssp,
 311 [  --enable-libssp        Builds libssp directory],
 312 ENABLE_LIBSSP=$enableval,
 313 ENABLE_LIBSSP=yes)
 314 if test "${ENABLE_LIBSSP}" != "yes" ; then
 315   noconfigdirs="$noconfigdirs target-libssp"
 316 fi
 317
 318 # Save it here so that, even in case of --enable-libgcj, if the Java
 319 # front-end isn't enabled, we still get libgcj disabled.
 320 libgcj_saved=$libgcj
 321 case $enable_libgcj in
 322 yes)
 323   # If we reset it here, it won't get added to noconfigdirs in the
 324   # target-specific build rules, so it will be forcibly enabled
 325   # (unless the Java language itself isn't enabled).
 326   libgcj=
 327   ;;
 328 no)
 329   # Make sure we get it printed in the list of not supported target libs.
 330   noconfigdirs="$noconfigdirs ${libgcj}"
 331   ;;
 332 esac
 333
 334
 335 # Allow --disable-libmudflap to exclude target-libmudflap
 336 case $enable_libmudflap in
 337 yes)
 338     ;;
 339 no)
 340     noconfigdirs="$noconfigdirs target-libmudflap"
 341     ;;
 342 "")
 343     case "${target}" in
 344     *-*-linux*-gnu | *-*-gnu* | *-*-k*bsd*-gnu)
 345         # Enable libmudflap by default in GNU and friends.
 346         ;;
 347     *-*-freebsd*)
 348         # Enable libmudflap by default in FreeBSD.
 349         ;;
 350     *)
 351         # Disable it by default everywhere else.
 352         noconfigdirs="$noconfigdirs target-libmudflap"
 353         ;;
 354     esac
 355 esac
 356
 357
 358 case "${target}" in
 359   *-*-chorusos)
 360     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 361     ;;
 362   powerpc-*-darwin*)
 363     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 364     noconfigdirs="$noconfigdirs sim target-rda"
 365     ;;
 366   *-*-darwin*)
 367     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 368     noconfigdirs="$noconfigdirs sim target-rda"
 369     noconfigdirs="$noconfigdirs ${libgcj}"
 370     ;;
 371   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 372     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 373     ;;
 374   *-*-freebsd*)
 375     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 376     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 377         && test -f /usr/local/include/gmp.h; then
 378       with_gmp=/usr/local
 379     fi
 380
 381     # Skip some stuff that's unsupported on some FreeBSD configurations.
 382     case "${target}" in
 383       i*86-*-*) ;;
 384       alpha*-*-*) ;;
 385       *)
 386         noconfigdirs="$noconfigdirs ${libgcj}"
 387         ;;
 388     esac
 389     ;;
 390   *-*-kaos*)
 391     # Remove unsupported stuff on all kaOS configurations.
 392     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 393     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 394     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 395     noconfigdirs="$noconfigdirs target-libgloss"
 396     ;;
 397   *-*-netbsd*)
 398     # Skip some stuff on all NetBSD configurations.
 399     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 400
 401     # Skip some stuff that's unsupported on some NetBSD configurations.
 402     case "${target}" in
 403       i*86-*-netbsdelf*) ;;
 404       arm*-*-netbsdelf*) ;;
 405       *)
 406         noconfigdirs="$noconfigdirs ${libgcj}"
 407         ;;
 408     esac
 409     ;;
 410   *-*-netware*)
 411     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 412     ;;
 413   *-*-rtems*)
 414     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 415     ;;
 416     # The tpf target doesn't support gdb yet.
 417   *-*-tpf*)
 418     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 419     ;;
 420   *-*-uclinux*)
 421     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 422     ;;
 423   *-*-vxworks*)
 424     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
 425     ;;
 426   m32c-*-*)
 427     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 428     ;;
 429   alpha*-dec-osf*)
 430     # ld works, but does not support shared libraries.
 431     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 432     # gas doesn't generate exception information.
 433     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 434     ;;
 435   alpha*-*-*vms*)
 436     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 437     ;;
 438   alpha*-*-linux*)
 439     # newlib is not 64 bit ready
 440     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 441     ;;
 442   alpha*-*-*)
 443     # newlib is not 64 bit ready
 444     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 445     ;;
 446   am33_2.0-*-linux*)
 447     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 448     ;;
 449   sh-*-linux*)
 450     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 451     ;;
 452   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 453     noconfigdirs="$noconfigdirs ${libgcj}"
 454     noconfigdirs="$noconfigdirs target-examples"
 455     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 456     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 457     noconfigdirs="$noconfigdirs expect dejagnu"
 458     # the C++ libraries don't build on top of CE's C libraries
 459     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 460     noconfigdirs="$noconfigdirs target-newlib"
 461     case "${host}" in
 462       *-*-cygwin*) ;; # keep gdb and readline
 463       *) noconfigdirs="$noconfigdirs gdb readline"
 464          ;;
 465     esac
 466     ;;
 467   arc-*-*)
 468     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 469     ;;
 470   arm-semi-aof )
 471     ;;
 472   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 473     noconfigdirs="$noconfigdirs ${libgcj}"
 474     ;;
 475   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 476     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 477     ;;
 478   arm*-*-linux-gnueabi)
 479     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 480     noconfigdirs="$noconfigdirs target-libjava target-libobjc"
 481     ;;
 482   arm*-*-symbianelf*)
 483     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 484     ;;
 485   arm-*-pe*)
 486     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 487     ;;
 488   thumb-*-coff)
 489     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 490     ;;
 491   thumb-*-elf)
 492     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 493     ;;
 494   thumb-*-pe)
 495     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 496     ;;
 497   arm-*-riscix*)
 498     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 499     ;;
 500   avr-*-*)
 501     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 502     ;;
 503   bfin-*-*)
 504     noconfigdirs="$noconfigdirs target-libgloss gdb"
 505     if test x${is_cross_compiler} != xno ; then
 506       target_configdirs="${target_configdirs} target-bsp target-cygmon"
 507     fi
 508     ;;
 509   c4x-*-* | tic4x-*-*)
 510     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 511     ;;
 512   c54x*-*-* | tic54x-*-*)
 513     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 514     ;;
 515   cris-*-* | crisv32-*-*)
 516     unsupported_languages="$unsupported_languages java"
 517     case "${target}" in
 518       *-*-aout)
 519         unsupported_languages="$unsupported_languages fortran"
 520         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 521       *-*-elf)
 522         unsupported_languages="$unsupported_languages fortran"
 523         noconfigdirs="$noconfigdirs target-boehm-gc";;
 524       *-*-linux*)
 525         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 526       *)
 527         unsupported_languages="$unsupported_languages fortran"
 528         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 529     esac
 530     ;;
 531   crx-*-*)
 532     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 533     ;;
 534   d10v-*-*)
 535     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 536     ;;
 537   d30v-*-*)
 538     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 539     ;;
 540   fr30-*-elf*)
 541     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 542     ;;
 543   frv-*-*)
 544     noconfigdirs="$noconfigdirs ${libgcj}"
 545     ;;
 546   h8300*-*-*)
 547     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 548     ;;
 549   h8500-*-*)
 550     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 551     ;;
 552   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 553     ;;
 554   hppa*64*-*-linux* | parisc*64*-*-linux*)
 555     # In this case, it's because the hppa64-linux target is for
 556     # the kernel only at this point and has no libc, and thus no
 557     # headers, crt*.o, etc., all of which are needed by these.
 558     noconfigdirs="$noconfigdirs target-zlib"
 559     ;;
 560   parisc*-*-linux* | hppa*-*-linux*)
 561     ;;
 562   hppa*-*-*elf* | \
 563   hppa*-*-lites* | \
 564   hppa*-*-openbsd* | \
 565   hppa*64*-*-*)
 566     noconfigdirs="$noconfigdirs ${libgcj}"
 567     ;;
 568   hppa*-*-*)
 569     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 570     # build on HP-UX 10.20.
 571     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 572     ;;
 573   i960-*-*)
 574     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 575     ;;
 576   ia64*-*-elf*)
 577     # No gdb support yet.
 578     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 579     ;;
 580   ia64*-**-hpux*)
 581     # No gdb or ld support yet.
 582     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 583     ;;
 584   i370-*-opened*)
 585     ;;
 586   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 587     noconfigdirs="$noconfigdirs ${libgcj}"
 588     ;;
 589   i[[3456789]]86-*-linux*)
 590     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 591     # not build java stuff by default.
 592     case "${target}" in
 593       *-*-*libc1*)
 594         noconfigdirs="$noconfigdirs ${libgcj}";;
 595     esac
 596
 597     # This section makes it possible to build newlib natively on linux.
 598     # If we are using a cross compiler then don't configure newlib.
 599     if test x${is_cross_compiler} != xno ; then
 600       noconfigdirs="$noconfigdirs target-newlib"
 601     fi
 602     noconfigdirs="$noconfigdirs target-libgloss"
 603     # If we are not using a cross compiler, do configure newlib.
 604     # Note however, that newlib will only be configured in this situation
 605     # if the --with-newlib option has been given, because otherwise
 606     # 'target-newlib' will appear in skipdirs.
 607     ;;
 608   i[[3456789]]86-*-mingw32*)
 609     target_configdirs="$target_configdirs target-mingw"
 610     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 611
 612     # Can't build gdb for mingw32 if not native.
 613     case "${host}" in
 614       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 615       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 616          ;;
 617     esac
 618     ;;
 619   *-*-cygwin*)
 620     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 621     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 622     # always build newlib if winsup directory is present.
 623     if test -d "$srcdir/winsup"; then
 624       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 625     elif test -d "$srcdir/newlib"; then
 626       echo "Warning: winsup is missing so newlib can't be built."
 627     fi
 628
 629     # Can't build gdb for Cygwin if not native.
 630     case "${host}" in
 631       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 632       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 633          ;;
 634     esac
 635     ;;
 636   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 637   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 638     ;;
 639   i[[3456789]]86-*-pe)
 640     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 641     ;;
 642   i[[3456789]]86-*-sco3.2v5*)
 643     # The linker does not yet know about weak symbols in COFF,
 644     # and is not configured to handle mixed ELF and COFF.
 645     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 646     ;;
 647   i[[3456789]]86-*-sco*)
 648     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 649     ;;
 650   i[[3456789]]86-*-solaris2*)
 651     noconfigdirs="$noconfigdirs target-libgloss"
 652     ;;
 653   i[[3456789]]86-*-sysv4*)
 654     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 655     ;;
 656   i[[3456789]]86-*-beos*)
 657     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 658     ;;
 659   m32r-*-*)
 660     noconfigdirs="$noconfigdirs ${libgcj}"
 661     ;;
 662   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 663     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 664     ;;
 665   m68k-*-elf*)
 666     noconfigdirs="$noconfigdirs ${libgcj}"
 667     ;;
 668   m68k-*-coff*)
 669     noconfigdirs="$noconfigdirs ${libgcj}"
 670     ;;
 671   mcore-*-pe*)
 672   # The EPOC C++ environment does not support exceptions or rtti,
 673   # and so building libstdc++-v3 tends not to always work.
 674     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 675     ;;
 676   mmix-*-*)
 677     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 678     unsupported_languages="$unsupported_languages fortran java"
 679     ;;
 680   mn10200-*-*)
 681     noconfigdirs="$noconfigdirs ${libgcj}"
 682     ;;
 683   mn10300-*-*)
 684     noconfigdirs="$noconfigdirs ${libgcj}"
 685     ;;
 686   mt-*-*)
 687     noconfigdirs="$noconfigdirs sim"
 688     ;;
 689   powerpc-*-aix*)
 690     # copied from rs6000-*-* entry
 691     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 692     ;;
 693   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 694     target_configdirs="$target_configdirs target-winsup"
 695     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 696     # always build newlib.
 697     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 698     ;;
 699     # This is temporary until we can link against shared libraries
 700   powerpcle-*-solaris*)
 701     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 702     ;;
 703   powerpc-*-beos*)
 704     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 705     ;;
 706   powerpc-*-eabi)
 707     noconfigdirs="$noconfigdirs ${libgcj}"
 708     ;;
 709   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 710     ;;
 711   rs6000-*-lynxos*)
 712     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 713     ;;
 714   rs6000-*-aix*)
 715     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 716     ;;
 717   rs6000-*-*)
 718     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 719     ;;
 720   m68k-apollo-*)
 721     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 722     ;;
 723   mips*-*-irix5*)
 724     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 725     ;;
 726   mips*-*-irix6*)
 727     # Linking libjava exceeds command-line length limits on at least
 728     # IRIX 6.2, but not on IRIX 6.5.
 729     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 730     # <oldham@codesourcery.com>
 731     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 732     ;;
 733   mips*-dec-bsd*)
 734     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 735     ;;
 736   mips*-*-bsd*)
 737     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 738     ;;
 739   mipstx39-*-*)
 740     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 741     ;;
 742   mips64*-*-linux*)
 743     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 744     ;;
 745   mips*-*-linux*)
 746     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 747     ;;
 748   mips*-*-*)
 749     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 750     ;;
 751   romp-*-*)
 752     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 753     ;;
 754   sh-*-* | sh64-*-*)
 755     case "${host}" in
 756       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 757       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 758       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 759       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 760     esac
 761     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 762     ;;
 763   sparc-*-elf*)
 764     noconfigdirs="$noconfigdirs ${libgcj}"
 765     ;;
 766   sparc64-*-elf*)
 767     noconfigdirs="$noconfigdirs ${libgcj}"
 768     ;;
 769   sparclite-*-*)
 770     noconfigdirs="$noconfigdirs ${libgcj}"
 771     ;;
 772   sparc-*-sunos4*)
 773     noconfigdirs="$noconfigdirs ${libgcj}"
 774     if test x${is_cross_compiler} != xno ; then
 775            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 776     else
 777            use_gnu_ld=no
 778     fi
 779     ;;
 780   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 781     noconfigdirs="$noconfigdirs ${libgcj}"
 782     ;;
 783   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 784     ;;
 785   v810-*-*)
 786     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 787     ;;
 788   v850-*-*)
 789     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 790     ;;
 791   v850e-*-*)
 792     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 793     ;;
 794   v850ea-*-*)
 795     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 796     ;;
 797   vax-*-vms)
 798     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 799     ;;
 800   vax-*-*)
 801     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 802     ;;
 803   xtensa-*-*)
 804     noconfigdirs="$noconfigdirs ${libgcj}"
 805     ;;
 806   ip2k-*-*)
 807     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 808     ;;
 809   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 810     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 811     ;;
 812   *-*-lynxos*)
 813     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 814     ;;
 815   *-*-*)
 816     noconfigdirs="$noconfigdirs ${libgcj}"
 817     ;;
 818 esac
 819
 820 # If we aren't building newlib, then don't build libgloss, since libgloss
 821 # depends upon some newlib header files.
 822 case "${noconfigdirs}" in
 823   *target-libgloss*) ;;
 824   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 825 esac
 826
 827 # Work in distributions that contain no compiler tools, like Autoconf.
 828 tentative_cc=""
 829 host_makefile_frag=/dev/null
 830 if test -d ${srcdir}/config ; then
 831 case "${host}" in
 832   m68k-hp-hpux*)
 833     # Avoid "too much defining" errors from HPUX compiler.
 834     tentative_cc="cc -Wp,-H256000"
 835     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 836     # If it's HP/UX ar, this should be harmless.
 837     RANLIB="ar ts"
 838     ;;
 839   m68k-apollo-sysv*)
 840     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 841     ;;
 842   m68k-apollo-bsd*)
 843     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 844     # chokes on bfd, the compiler won't let you assign integers to enums, and
 845     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 846     # the apollo compiler" (the preferred version of GCC could be called cc,
 847     # or whatever), but I'm not sure leaving CC as cc is any better...
 848     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 849     # Used to have BISON=yacc.
 850     tentative_cc=gcc
 851     ;;
 852   m88k-dg-dgux*)
 853     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 854     ;;
 855   m88k-harris-cxux*)
 856     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 857     tentative_cc="cc -Xa"
 858     host_makefile_frag="config/mh-cxux"
 859     ;;
 860   m88k-motorola-sysv*)
 861     ;;
 862   mips*-dec-ultrix*)
 863     tentative_cc="cc -Wf,-XNg1000"
 864     host_makefile_frag="config/mh-decstation"
 865     ;;
 866   mips*-nec-sysv4*)
 867     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 868     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 869     host_makefile_frag="config/mh-necv4"
 870     ;;
 871   mips*-sgi-irix4*)
 872     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 873     # environment.  Also bump switch table size so that cp-parse will
 874     # compile.  Bump string length limit so linker builds.
 875     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 876     ;;
 877   mips*-*-sysv4*)
 878     host_makefile_frag="config/mh-sysv4"
 879     ;;
 880   mips*-*-sysv*)
 881     # This is for a MIPS running RISC/os 4.52C.
 882
 883     # This is needed for GDB, but needs to be in the top-level make because
 884     # if a library is compiled with the bsd headers and gets linked with the
 885     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 886     # a different size).
 887     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 888     # known except to select the sysv environment.  Could we use /proc instead?
 889     # These "sysv environments" and "bsd environments" often end up being a pain.
 890     #
 891     # This is not part of CFLAGS because perhaps not all C compilers have this
 892     # option.
 893     tentative_cc="cc -systype sysv"
 894     ;;
 895   i370-ibm-opened*)
 896     tentative_cc="c89"
 897     ;;
 898   i[[3456789]]86-*-sysv5*)
 899     host_makefile_frag="config/mh-sysv5"
 900     ;;
 901   i[[3456789]]86-*-dgux*)
 902     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 903     host_makefile_frag="config/mh-dgux386"
 904     ;;
 905   i[[3456789]]86-ncr-sysv4.3*)
 906     # The MetaWare compiler will generate a copyright message unless you
 907     # turn it off by adding the -Hnocopyr flag.
 908     tentative_cc="cc -Hnocopyr"
 909     ;;
 910   i[[3456789]]86-ncr-sysv4*)
 911     # for an NCR 3000 (i486/SVR4) system.
 912     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 913     # This compiler not only emits obnoxious copyright messages every time
 914     # you run it, but it chokes and dies on a whole bunch of GNU source
 915     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 916     tentative_cc="/usr/ccs/ATT/cc"
 917     host_makefile_frag="config/mh-ncr3000"
 918     ;;
 919   i[[3456789]]86-*-sco3.2v5*)
 920     ;;
 921   i[[3456789]]86-*-sco*)
 922     # The native C compiler botches some simple uses of const.  Unfortunately,
 923     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 924     tentative_cc="cc -Dconst="
 925     host_makefile_frag="config/mh-sco"
 926     ;;
 927   i[[3456789]]86-*-udk*)
 928     host_makefile_frag="config/mh-sysv5"
 929     ;;
 930   i[[3456789]]86-*-solaris2*)
 931     host_makefile_frag="config/mh-sysv4"
 932     ;;
 933   i[[3456789]]86-*-msdosdjgpp*)
 934     host_makefile_frag="config/mh-djgpp"
 935     ;;
 936   *-cygwin*)
 937     host_makefile_frag="config/mh-cygwin"
 938     ;;
 939   *-mingw32*)
 940     ;;
 941   *-interix*)
 942     host_makefile_frag="config/mh-interix"
 943     ;;
 944   vax-*-ultrix2*)
 945     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 946     tentative_cc=gcc
 947     ;;
 948   *-*-solaris2*)
 949     host_makefile_frag="config/mh-solaris"
 950     ;;
 951   m68k-sun-sunos*)
 952     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 953     # without overflowing the jump tables (-J says to use a 32 bit table)
 954     tentative_cc="cc -J"
 955     ;;
 956   *-hp-hpux*)
 957     tentative_cc="cc -Wp,-H256000"
 958     ;;
 959   *-*-hiux*)
 960     tentative_cc="cc -Wp,-H256000"
 961     ;;
 962   rs6000-*-lynxos*)
 963     # /bin/cc is less than useful for our purposes.  Always use GCC
 964     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 965     host_makefile_frag="config/mh-lynxrs6k"
 966     ;;
 967   powerpc-*-darwin*)
 968     host_makefile_frag="config/mh-ppc-darwin"
 969     ;;
 970   powerpc-*-aix*)
 971     host_makefile_frag="config/mh-ppc-aix"
 972     ;;
 973   rs6000-*-aix*)
 974     host_makefile_frag="config/mh-ppc-aix"
 975     ;;
 976   *-*-lynxos*)
 977     # /bin/cc is less than useful for our purposes.  Always use GCC
 978     tentative_cc="/bin/gcc"
 979     ;;
 980   *-*-sysv4*)
 981     host_makefile_frag="config/mh-sysv4"
 982     ;;
 983   # This is placed last to prevent interfering with the cases above.
 984   i[[3456789]]86-*-*)
 985     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 986     host_makefile_frag="config/mh-x86omitfp"
 987     ;;
 988 esac
 989 fi
 990
 991 # If we aren't going to be using gcc, see if we can extract a definition
 992 # of CC from the fragment.
 993 # Actually, use the 'pre-extracted' version above.
 994 if test -z "${CC}" && test "${build}" = "${host}" ; then
 995   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 996   found=
 997   for dir in $PATH; do
 998     test -z "$dir" && dir=.
 999     if test -f $dir/gcc; then
1000       found=yes
1001       break
1002     fi
1003   done
1004   IFS="$save_ifs"
1005   if test -z "${found}" && test -n "${tentative_cc}" ; then
1006     CC=$tentative_cc
1007   fi
1008 fi
1009
1010 if test "${build}" != "${host}" ; then
1011   # If we are doing a Canadian Cross, in which the host and build systems
1012   # are not the same, we set reasonable default values for the tools.
1013
1014   CC=${CC-${host_alias}-gcc}
1015   CFLAGS=${CFLAGS-"-g -O2"}
1016   CXX=${CXX-${host_alias}-c++}
1017   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1018   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1019   BUILD_PREFIX=${build_alias}-
1020   BUILD_PREFIX_1=${build_alias}-
1021
1022 else
1023   # Set reasonable default values for some tools even if not Canadian.
1024   # Of course, these are different reasonable default values, originally
1025   # specified directly in the Makefile.
1026   # We don't export, so that autoconf can do its job.
1027   # Note that all these settings are above the fragment inclusion point
1028   # in Makefile.in, so can still be overridden by fragments.
1029   # This is all going to change when we autoconfiscate...
1030
1031   CC_FOR_BUILD="\$(CC)"
1032   BUILD_PREFIX=
1033   BUILD_PREFIX_1=loser-
1034
1035   AC_PROG_CC
1036
1037   # We must set the default linker to the linker used by gcc for the correct
1038   # operation of libtool.  If LD is not defined and we are using gcc, try to
1039   # set the LD default to the ld used by gcc.
1040   if test -z "$LD"; then
1041     if test "$GCC" = yes; then
1042       case $build in
1043       *-*-mingw*)
1044         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1045       *)
1046         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1047       esac
1048       case $gcc_prog_ld in
1049       # Accept absolute paths.
1050       [[\\/]* | [A-Za-z]:[\\/]*)]
1051         LD="$gcc_prog_ld" ;;
1052       esac
1053     fi
1054   fi
1055
1056   CXX=${CXX-"c++"}
1057   CFLAGS=${CFLAGS-"-g"}
1058   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1059 fi
1060
1061 ACX_PROG_GNAT
1062 ACX_PROG_CMP_IGNORE_INITIAL
1063
1064 # Check for GMP and MPFR
1065 gmplibs=
1066 gmpinc=
1067 have_gmp=yes
1068 # Specify a location for mpfr
1069 # check for this first so it ends up on the link line before gmp.
1070 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1071
1072 if test "x$with_mpfr_dir" != x; then
1073   gmpinc="-I$with_mpfr_dir"
1074   gmplibs="$with_mpfr_dir/libmpfr.a"
1075 else
1076   gmplibs="-lmpfr"
1077 fi
1078
1079 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1080
1081 if test "x$with_mpfr" != x; then
1082   gmplibs="-L$with_mpfr/lib $gmplibs"
1083   gmpinc="-I$with_mpfr/include"
1084 fi
1085
1086 # Specify a location for gmp
1087 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1088
1089 if test "x$with_gmp_dir" != x; then
1090   gmpinc="$gmpinc -I$with_gmp_dir"
1091   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1092     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1093   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1094     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1095   fi
1096   # One of the later tests will catch the error if neither library is present.
1097 else
1098   gmplibs="$gmplibs -lgmp"
1099 fi
1100
1101 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1102
1103 if test "x$with_gmp" != x; then
1104   gmplibs="-L$with_gmp/lib $gmplibs"
1105   gmpinc="-I$with_gmp/include $gmpinc"
1106 fi
1107
1108 saved_CFLAGS="$CFLAGS"
1109 CFLAGS="$CFLAGS $gmpinc"
1110 # Check GMP actually works
1111 AC_MSG_CHECKING([for correct version of gmp.h])
1112 AC_TRY_COMPILE([#include "gmp.h"],[
1113 #if __GNU_MP_VERSION < 3
1114 choke me
1115 #endif
1116 ], [AC_MSG_RESULT([yes])],
1117   [AC_MSG_RESULT([no]); have_gmp=no])
1118
1119 if test x"$have_gmp" = xyes; then
1120   AC_MSG_CHECKING([for MPFR])
1121
1122   saved_LIBS="$LIBS"
1123   LIBS="$LIBS $gmplibs"
1124   AC_TRY_LINK([#include <gmp.h>
1125 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1126     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1127   LIBS="$saved_LIBS"
1128   CFLAGS="$saved_CFLAGS"
1129 fi
1130
1131 # Flags needed for both GMP and/or MPFR
1132 AC_SUBST(gmplibs)
1133 AC_SUBST(gmpinc)
1134
1135 # By default, C is the only stage 1 language.
1136 stage1_languages=c
1137 AC_SUBST(stage1_languages)
1138
1139 # Figure out what language subdirectories are present.
1140 # Look if the user specified --enable-languages="..."; if not, use
1141 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1142 # go away some day.
1143 # NB:  embedded tabs in this IF block -- do not untabify
1144 if test -d ${srcdir}/gcc; then
1145   if test x"${enable_languages+set}" != xset; then
1146     if test x"${LANGUAGES+set}" = xset; then
1147       enable_languages="${LANGUAGES}"
1148         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1149     else
1150       enable_languages=all
1151     fi
1152   else
1153     if test x"${enable_languages}" = x ||
1154        test x"${enable_languages}" = xyes;
1155        then
1156       echo configure.in: --enable-languages needs at least one language argument 1>&2
1157       exit 1
1158     fi
1159   fi
1160   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1161
1162   # 'f95' is the old name for the 'fortran' language. We issue a warning
1163   # and make the substitution.
1164   case ,${enable_languages}, in
1165     *,f95,*)
1166       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1167       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1168       ;;
1169   esac
1170
1171   # First scan to see if an enabled language requires some other language.
1172   # We assume that a given config-lang.in will list all the language
1173   # front ends it requires, even if some are required indirectly.
1174   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1175     case ${lang_frag} in
1176       ..) ;;
1177       # The odd quoting in the next line works around
1178       # an apparent bug in bash 1.12 on linux.
1179       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1180       *)
1181         # From the config-lang.in, get $language, $lang_requires
1182         language=
1183         lang_requires=
1184         . ${lang_frag}
1185         for other in ${lang_requires} ; do
1186           case ,${enable_languages}, in
1187             *,$other,*) ;;
1188             *,all,*) ;;
1189             *,$language,*)
1190               echo " \`$other' language required by \`$language'; enabling" 1>&2
1191               enable_languages="${enable_languages},${other}"
1192               ;;
1193           esac
1194         done
1195         ;;
1196     esac
1197   done
1198
1199   new_enable_languages=c
1200   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1201   potential_languages=c
1202
1203   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1204     case ${lang_frag} in
1205       ..) ;;
1206       # The odd quoting in the next line works around
1207       # an apparent bug in bash 1.12 on linux.
1208       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1209       *)
1210         # From the config-lang.in, get $language, $target_libs,
1211         # $lang_dirs, $boot_language, and $build_by_default
1212         language=
1213         target_libs=
1214         lang_dirs=
1215         boot_language=
1216         build_by_default=
1217         need_gmp=
1218         . ${lang_frag}
1219         potential_languages="${potential_languages},${language}"
1220         # This is quite sensitive to the ordering of the case statement arms.
1221         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1222           *::*:*)
1223             echo "${lang_frag} doesn't set \$language." 1>&2
1224             exit 1
1225             ;;
1226           *:ada:no:*)
1227             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1228             add_this_lang=no
1229             ;;
1230           *,${language},*:*:*:*)
1231             # Language was explicitly selected; include it.
1232             add_this_lang=yes
1233             ;;
1234           *,all,*:*:*:no)
1235             # 'all' was selected, but this is not a default language
1236             # so do not include it.
1237             add_this_lang=no
1238             ;;
1239           *,all,*:*:*:*)
1240             # 'all' was selected and this is a default language; include it.
1241             add_this_lang=yes
1242             ;;
1243           *)
1244             add_this_lang=no
1245             ;;
1246         esac
1247
1248         # Disable languages that need GMP if it isn't available.
1249         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1250           *,${language},*:no:yes)
1251             # Specifically requested language; tell them.
1252             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1253             ;;
1254           *:no:yes)
1255             # Silently disable.
1256             add_this_lang=no
1257             ;;
1258         esac
1259
1260         # Disable a language that is unsupported by the target.
1261         case " $unsupported_languages " in
1262           *" $language "*)
1263             add_this_lang=no
1264             ;;
1265         esac
1266
1267         case $add_this_lang in
1268           no)
1269             # Remove language-dependent dirs.
1270             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1271             ;;
1272           *)
1273             new_enable_languages="$new_enable_languages,$language"
1274             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1275             case ${boot_language} in
1276               yes)
1277                 # Add to (comma-separated) list of stage 1 languages.
1278                 stage1_languages="${stage1_languages},${language}"
1279                 ;;
1280             esac
1281             ;;
1282         esac
1283         ;;
1284     esac
1285   done
1286
1287   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1288   if test "x$missing_languages" != x; then
1289     AC_MSG_ERROR([
1290 The following requested languages could not be built: ${missing_languages}
1291 Recognised languages are: ${potential_languages}])
1292   fi
1293
1294   if test "x$new_enable_languages" != "x$enable_languages"; then
1295     echo The following languages will be built: ${new_enable_languages}
1296   fi
1297   enable_languages="$new_enable_languages"
1298   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1299 fi
1300
1301 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1302 # $build_configdirs and $target_configdirs.
1303 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1304
1305 notsupp=""
1306 for dir in . $skipdirs $noconfigdirs ; do
1307   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1308   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1309     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1310     if test -r $srcdir/$dirname/configure ; then
1311       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1312         true
1313       else
1314         notsupp="$notsupp $dir"
1315       fi
1316     fi
1317   fi
1318   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1319     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1320     if test -r $srcdir/$dirname/configure ; then
1321       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1322         true
1323       else
1324         notsupp="$notsupp $dir"
1325       fi
1326     fi
1327   fi
1328   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1329     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1330     if test -r $srcdir/$dirname/configure ; then
1331       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1332         true
1333       else
1334         notsupp="$notsupp $dir"
1335       fi
1336     fi
1337   fi
1338 done
1339
1340 # Sometimes the tools are distributed with libiberty but with no other
1341 # libraries.  In that case, we don't want to build target-libiberty.
1342 if test -n "${target_configdirs}" ; then
1343   others=
1344   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1345     if test "$i" != "libiberty" ; then
1346       if test -r $srcdir/$i/configure ; then
1347         others=yes;
1348         break;
1349       fi
1350     fi
1351   done
1352   if test -z "${others}" ; then
1353     target_configdirs=
1354   fi
1355 fi
1356
1357 # Quietly strip out all directories which aren't configurable in this tree.
1358 # This relies on all configurable subdirectories being autoconfiscated, which
1359 # is now the case.
1360 build_configdirs_all="$build_configdirs"
1361 build_configdirs=
1362 for i in ${build_configdirs_all} ; do
1363   j=`echo $i | sed -e s/build-//g`
1364   if test -f ${srcdir}/$j/configure ; then
1365     build_configdirs="${build_configdirs} $i"
1366   fi
1367 done
1368
1369 configdirs_all="$configdirs"
1370 configdirs=
1371 for i in ${configdirs_all} ; do
1372   if test -f ${srcdir}/$i/configure ; then
1373     configdirs="${configdirs} $i"
1374   fi
1375 done
1376
1377 target_configdirs_all="$target_configdirs"
1378 target_configdirs=
1379 for i in ${target_configdirs_all} ; do
1380   j=`echo $i | sed -e s/target-//g`
1381   if test -f ${srcdir}/$j/configure ; then
1382     target_configdirs="${target_configdirs} $i"
1383   fi
1384 done
1385
1386 # Produce a warning message for the subdirs we can't configure.
1387 # This isn't especially interesting in the Cygnus tree, but in the individual
1388 # FSF releases, it's important to let people know when their machine isn't
1389 # supported by the one or two programs in a package.
1390
1391 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1392   # If $appdirs is non-empty, at least one of those directories must still
1393   # be configured, or we error out.  (E.g., if the gas release supports a
1394   # specified target in some subdirs but not the gas subdir, we shouldn't
1395   # pretend that all is well.)
1396   if test -n "$appdirs" ; then
1397     for dir in $appdirs ; do
1398       if test -r $dir/Makefile.in ; then
1399         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1400           appdirs=""
1401           break
1402         fi
1403         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1404           appdirs=""
1405           break
1406         fi
1407       fi
1408     done
1409     if test -n "$appdirs" ; then
1410       echo "*** This configuration is not supported by this package." 1>&2
1411       exit 1
1412     fi
1413   fi
1414   # Okay, some application will build, or we don't care to check.  Still
1415   # notify of subdirs not getting built.
1416   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1417   echo "    ${notsupp}" 1>&2
1418   echo "    (Any other directories should still work fine.)" 1>&2
1419 fi
1420
1421 case "$host" in
1422   *msdosdjgpp*)
1423     enable_gdbtk=no ;;
1424 esac
1425
1426 copy_dirs=
1427
1428 AC_ARG_WITH([build-sysroot],
1429   [  --with-build-sysroot=sysroot
1430                           use sysroot as the system root during the build],
1431   [if test x"$withval" != x ; then
1432      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1433    fi],
1434   [SYSROOT_CFLAGS_FOR_TARGET=])
1435 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1436
1437 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1438 # the named directory are copied to $(tooldir)/sys-include.
1439 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1440   if test x${is_cross_compiler} = xno ; then
1441     echo 1>&2 '***' --with-headers is only supported when cross compiling
1442     exit 1
1443   fi
1444   if test x"${with_headers}" != xyes ; then
1445     case "${exec_prefixoption}" in
1446     "") x=${prefix} ;;
1447     *) x=${exec_prefix} ;;
1448     esac
1449     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1450   fi
1451 fi
1452
1453 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1454 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1455 # are permitted.
1456 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1457   if test x${is_cross_compiler} = xno ; then
1458     echo 1>&2 '***' --with-libs is only supported when cross compiling
1459     exit 1
1460   fi
1461   if test x"${with_libs}" != xyes ; then
1462     # Copy the libraries in reverse order, so that files in the first named
1463     # library override files in subsequent libraries.
1464     case "${exec_prefixoption}" in
1465     "") x=${prefix} ;;
1466     *) x=${exec_prefix} ;;
1467     esac
1468     for l in ${with_libs}; do
1469       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1470     done
1471   fi
1472 fi
1473
1474 # Handle ${copy_dirs}
1475 set fnord ${copy_dirs}
1476 shift
1477 while test $# != 0 ; do
1478   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1479     :
1480   else
1481     echo Copying $1 to $2
1482
1483     # Use the install script to create the directory and all required
1484     # parent directories.
1485     if test -d $2 ; then
1486       :
1487     else
1488       echo >config.temp
1489       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1490     fi
1491
1492     # Copy the directory, assuming we have tar.
1493     # FIXME: Should we use B in the second tar?  Not all systems support it.
1494     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1495
1496     # It is the responsibility of the user to correctly adjust all
1497     # symlinks.  If somebody can figure out how to handle them correctly
1498     # here, feel free to add the code.
1499
1500     echo $1 > $2/COPIED
1501   fi
1502   shift; shift
1503 done
1504
1505 extra_arflags_for_target=
1506 extra_nmflags_for_target=
1507 extra_ranlibflags_for_target=
1508 target_makefile_frag=/dev/null
1509 case "${target}" in
1510   *-*-netware*)
1511     target_makefile_frag="config/mt-netware"
1512     ;;
1513   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1514     target_makefile_frag="config/mt-gnu"
1515     ;;
1516   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1517     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1518     # commands to handle both 32-bit and 64-bit objects.  These flags are
1519     # harmless if we're using GNU nm or ar.
1520     extra_arflags_for_target=" -X32_64"
1521     extra_nmflags_for_target=" -B -X32_64"
1522     target_makefile_frag="config/mt-ppc-aix"
1523     ;;
1524   *-*-darwin*)
1525     # ranlib from Darwin requires the -c flag to look at common symbols.
1526     extra_ranlibflags_for_target=" -c"
1527     ;;
1528   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1529     target_makefile_frag="config/mt-wince"
1530     ;;
1531 esac
1532
1533 alphaieee_frag=/dev/null
1534 case $target in
1535   alpha*-*-*)
1536     # This just makes sure to use the -mieee option to build target libs.
1537     # This should probably be set individually by each library.
1538     alphaieee_frag="config/mt-alphaieee"
1539     ;;
1540 esac
1541
1542 # If --enable-target-optspace always use -Os instead of -O2 to build
1543 # the target libraries, similarly if it is not specified, use -Os
1544 # on selected platforms.
1545 ospace_frag=/dev/null
1546 case "${enable_target_optspace}:${target}" in
1547   yes:*)
1548     ospace_frag="config/mt-ospace"
1549     ;;
1550   :d30v-*)
1551     ospace_frag="config/mt-d30v"
1552     ;;
1553   :m32r-* | :d10v-* | :fr30-*)
1554     ospace_frag="config/mt-ospace"
1555     ;;
1556   no:* | :*)
1557     ;;
1558   *)
1559     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1560     ;;
1561 esac
1562
1563 # Set with_gnu_as and with_gnu_ld as appropriate.
1564 #
1565 # This is done by determining whether or not the appropriate directory
1566 # is available, and by checking whether or not specific configurations
1567 # have requested that this magic not happen.
1568 #
1569 # The command line options always override the explicit settings in
1570 # configure.in, and the settings in configure.in override this magic.
1571 #
1572 # If the default for a toolchain is to use GNU as and ld, and you don't
1573 # want to do that, then you should use the --without-gnu-as and
1574 # --without-gnu-ld options for the configure script.
1575
1576 if test x${use_gnu_as} = x &&
1577    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1578   with_gnu_as=yes
1579   extra_host_args="$extra_host_args --with-gnu-as"
1580 fi
1581
1582 if test x${use_gnu_ld} = x &&
1583    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1584   with_gnu_ld=yes
1585   extra_host_args="$extra_host_args --with-gnu-ld"
1586 fi
1587
1588 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1589 # can detect this case.
1590
1591 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1592   with_newlib=yes
1593   extra_host_args="$extra_host_args --with-newlib"
1594 fi
1595
1596 # Default to using --with-stabs for certain targets.
1597 if test x${with_stabs} = x ; then
1598   case "${target}" in
1599   mips*-*-irix[[56]]*)
1600     ;;
1601   mips*-*-* | alpha*-*-osf*)
1602     with_stabs=yes;
1603     extra_host_args="${extra_host_args} --with-stabs"
1604     ;;
1605   esac
1606 fi
1607
1608 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1609 # them automatically.
1610 case "${host}" in
1611   hppa*64*-*-hpux11*)
1612     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1613     ;;
1614 esac
1615
1616 # Some systems (e.g., one of the i386-aix systems the gas testers are
1617 # using) don't handle "\$" correctly, so don't use it here.
1618 tooldir='${exec_prefix}'/${target_alias}
1619 build_tooldir=${tooldir}
1620
1621 # Create a .gdbinit file which runs the one in srcdir
1622 # and tells GDB to look there for source files.
1623
1624 if test -r ${srcdir}/.gdbinit ; then
1625   case ${srcdir} in
1626     .) ;;
1627     *) cat > ./.gdbinit <<EOF
1628 # ${NO_EDIT}
1629 dir ${srcdir}
1630 dir .
1631 source ${srcdir}/.gdbinit
1632 EOF
1633     ;;
1634   esac
1635 fi
1636
1637 # Make sure that the compiler is able to generate an executable.  If it
1638 # can't, we are probably in trouble.  We don't care whether we can run the
1639 # executable--we might be using a cross compiler--we only care whether it
1640 # can be created.  At this point the main configure script has set CC.
1641 we_are_ok=no
1642 echo "int main () { return 0; }" > conftest.c
1643 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1644 if test $? = 0 ; then
1645   if test -s conftest || test -s conftest.exe ; then
1646     we_are_ok=yes
1647   fi
1648 fi
1649 case $we_are_ok in
1650   no)
1651     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1652     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1653     rm -f conftest*
1654     exit 1
1655     ;;
1656 esac
1657 rm -f conftest*
1658
1659 # The Solaris /usr/ucb/cc compiler does not appear to work.
1660 case "${host}" in
1661   sparc-sun-solaris2*)
1662       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1663       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1664           could_use=
1665           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1666           if test -d /opt/cygnus/bin ; then
1667               if test "$could_use" = "" ; then
1668                   could_use="/opt/cygnus/bin"
1669               else
1670                   could_use="$could_use or /opt/cygnus/bin"
1671               fi
1672           fi
1673         if test "$could_use" = "" ; then
1674             echo "Warning: compilation may fail because you're using"
1675             echo "/usr/ucb/cc.  You should change your PATH or CC "
1676             echo "variable and rerun configure."
1677         else
1678             echo "Warning: compilation may fail because you're using"
1679             echo "/usr/ucb/cc, when you should use the C compiler from"
1680             echo "$could_use.  You should change your"
1681             echo "PATH or CC variable and rerun configure."
1682         fi
1683       fi
1684   ;;
1685 esac
1686
1687 case "${host}" in
1688   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1689   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1690   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1691 esac
1692
1693 # Record target_configdirs and the configure arguments for target and
1694 # build configuration in Makefile.
1695 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1696 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1697
1698 # Determine whether gdb needs tk/tcl or not.
1699 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1700 # and in that case we want gdb to be built without tk.  Ugh!
1701 # In fact I believe gdb is the *only* package directly dependent on tk,
1702 # so we should be able to put the 'maybe's in unconditionally and
1703 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1704 # 100% sure that that's safe though.
1705
1706 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1707 case "$enable_gdbtk" in
1708   no)
1709     GDB_TK="" ;;
1710   yes)
1711     GDB_TK="${gdb_tk}" ;;
1712   *)
1713     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1714     # distro.  Eventually someone will fix this and move Insight, nee
1715     # gdbtk to a separate directory.
1716     if test -d ${srcdir}/gdb/gdbtk ; then
1717       GDB_TK="${gdb_tk}"
1718     else
1719       GDB_TK=""
1720     fi
1721     ;;
1722 esac
1723 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1724 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1725
1726 # Strip out unwanted targets.
1727
1728 # While at that, we remove Makefiles if we were started for recursive
1729 # configuration, so that the top-level Makefile reconfigures them,
1730 # like we used to do when configure itself was recursive.
1731
1732 # Loop over modules.  $extrasub must be used with care, limiting as
1733 # much as possible the usage of range addresses.  That's because autoconf
1734 # splits the sed script to overcome limits in the number of commands,
1735 # and relying on carefully-timed sed passes may turn out to be very hard
1736 # to maintain later.  In this particular case, you just have to be careful
1737 # not to nest @if/@endif pairs, because configure will not warn you at all.
1738
1739 AC_ARG_ENABLE([bootstrap],
1740 [  --enable-bootstrap[=lean]     Enable bootstrapping [no]],,
1741 enable_bootstrap=default)
1742
1743 # Issue errors and warnings for invalid/strange bootstrap combinations.
1744 case "$configdirs" in
1745   *gcc*) have_compiler=yes ;;
1746   *) have_compiler=no ;;
1747 esac
1748
1749 case "$have_compiler:$host:$target:$enable_bootstrap" in
1750   *:*:*:no) ;;
1751
1752   # Default behavior.  Enable bootstrap if we have a compiler
1753   # and we are in a native configuration.
1754   yes:$build:$build:default)
1755     enable_bootstrap=yes ;;
1756
1757   *:*:*:default)
1758     enable_bootstrap=no ;;
1759
1760   # We have a compiler and we are in a native configuration, bootstrap is ok
1761   yes:$build:$build:yes | yes:$build:$build:lean)
1762     ;;
1763
1764   # Other configurations, but we have a compiler.  Assume the user knows
1765   # what he's doing.
1766   yes:*:*:yes | yes:*:*:lean)
1767     AC_MSG_WARN([trying to bootstrap a cross compiler])
1768     ;;
1769
1770   # No compiler: if they passed --enable-bootstrap explicitly, fail
1771   no:*:*:yes | no:*:*:lean)
1772     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1773
1774   # Fail if wrong command line
1775   *)
1776     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1777     ;;
1778 esac
1779
1780 # Adjust the toplevel makefile according to whether bootstrap was selected.
1781 case "$enable_bootstrap" in
1782   yes)
1783     bootstrap_lean='#'
1784     bootstrap_suffix=bootstrap ;;
1785   lean)
1786     bootstrap_lean=''
1787     bootstrap_suffix=bootstrap ;;
1788   no)
1789     bootstrap_suffix=no-bootstrap ;;
1790 esac
1791 AC_SUBST(bootstrap_lean)
1792
1793 for module in ${build_configdirs} ; do
1794   if test -z "${no_recursion}" \
1795      && test -f ${build_subdir}/${module}/Makefile; then
1796     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1797     rm -f ${build_subdir}/${module}/Makefile
1798   fi
1799   extrasub="$extrasub
1800 /^@if build-$module\$/d
1801 /^@endif build-$module\$/d
1802 /^@if build-$module-$bootstrap_suffix\$/d
1803 /^@endif build-$module-$bootstrap_suffix\$/d"
1804 done
1805 for module in ${configdirs} ; do
1806   if test -z "${no_recursion}" \
1807      && test -f ${module}/Makefile; then
1808     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1809     rm -f ${module}/Makefile
1810   fi
1811   extrasub="$extrasub
1812 /^@if $module\$/d
1813 /^@endif $module\$/d
1814 /^@if $module-$bootstrap_suffix\$/d
1815 /^@endif $module-$bootstrap_suffix\$/d"
1816 done
1817 for module in ${target_configdirs} ; do
1818   if test -z "${no_recursion}" \
1819      && test -f ${target_subdir}/${module}/Makefile; then
1820     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1821     rm -f ${target_subdir}/${module}/Makefile
1822   fi
1823   extrasub="$extrasub
1824 /^@if target-$module\$/d
1825 /^@endif target-$module\$/d
1826 /^@if target-$module-$bootstrap_suffix\$/d
1827 /^@endif target-$module-$bootstrap_suffix\$/d"
1828 done
1829
1830 extrasub="$extrasub
1831 /^@if /,/^@endif /d"
1832
1833 # Create the serialization dependencies.  This uses a temporary file.
1834
1835 AC_ARG_ENABLE([serial-configure],
1836 [  --enable-serial-[{host,target,build}-]configure
1837                           Force sequential configuration of
1838                           sub-packages for the host, target or build
1839                           machine, or all sub-packages])
1840
1841 case ${enable_serial_configure} in
1842   yes)
1843     enable_serial_build_configure=yes
1844     enable_serial_host_configure=yes
1845     enable_serial_target_configure=yes
1846     ;;
1847 esac
1848
1849 # These force 'configure's to be done one at a time, to avoid problems
1850 # with contention over a shared config.cache.
1851 rm -f serdep.tmp
1852 echo '# serdep.tmp' > serdep.tmp
1853 olditem=
1854 test "x${enable_serial_build_configure}" = xyes &&
1855 for item in ${build_configdirs} ; do
1856   case ${olditem} in
1857     "") ;;
1858     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1859   esac
1860   olditem=${item}
1861 done
1862 olditem=
1863 test "x${enable_serial_host_configure}" = xyes &&
1864 for item in ${configdirs} ; do
1865   case ${olditem} in
1866     "") ;;
1867     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1868   esac
1869   olditem=${item}
1870 done
1871 olditem=
1872 test "x${enable_serial_target_configure}" = xyes &&
1873 for item in ${target_configdirs} ; do
1874   case ${olditem} in
1875     "") ;;
1876     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1877   esac
1878   olditem=${item}
1879 done
1880 serialization_dependencies=serdep.tmp
1881 AC_SUBST_FILE(serialization_dependencies)
1882
1883 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1884 # target and nonopt.  These are the ones we might not want to pass
1885 # down to subconfigures.  Also strip program-prefix, program-suffix,
1886 # and program-transform-name, so that we can pass down a consistent
1887 # program-transform-name.  If autoconf has put single quotes around
1888 # any of these arguments (because they contain shell metacharacters)
1889 # then this will fail; in practice this only happens for
1890 # --program-transform-name, so be sure to override --program-transform-name
1891 # at the end of the argument list.
1892 # These will be expanded by make, so quote '$'.
1893 cat <<\EOF_SED > conftestsed
1894 s/ --no[[^ ]]*/ /g
1895 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1896 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1897 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1898 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1899 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1900 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1901 s/ -cache-file[[= ]][[^ ]]*//g
1902 s/ -srcdir[[= ]][[^ ]]*//g
1903 s/ -host[[= ]][[^ ]]*//g
1904 s/ -build[[= ]][[^ ]]*//g
1905 s/ -target[[= ]][[^ ]]*//g
1906 s/ -program-prefix[[= ]][[^ ]]*//g
1907 s/ -program-suffix[[= ]][[^ ]]*//g
1908 s/ -program-transform-name[[= ]][[^ ]]*//g
1909 s/ [[^' -][^ ]*] / /
1910 s/^ *//;s/ *$//
1911 s,\$,$$,g
1912 EOF_SED
1913 sed -f conftestsed <<EOF_SED > conftestsed.out
1914  ${ac_configure_args}
1915 EOF_SED
1916 baseargs=`cat conftestsed.out`
1917 rm -f conftestsed conftestsed.out
1918
1919 # Add in --program-transform-name, after --program-prefix and
1920 # --program-suffix have been applied to it.  Autoconf has already
1921 # doubled dollar signs and backslashes in program_transform_name; we want
1922 # the backslashes un-doubled, and then the entire thing wrapped in single
1923 # quotes, because this will be expanded first by make and then by the shell.
1924 # Also, because we want to override the logic in subdir configure scripts to
1925 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1926 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1927 ${program_transform_name}
1928 EOF_SED
1929 gcc_transform_name=`cat conftestsed.out`
1930 rm -f conftestsed.out
1931 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1932
1933 # For the build-side libraries, we just need to pretend we're native,
1934 # and not use the same cache file.  Multilibs are neither needed nor
1935 # desired.
1936 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
1937
1938 # For host modules, accept cache file option, or specification as blank.
1939 case "${cache_file}" in
1940 "") # empty
1941   cache_file_option="" ;;
1942 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1943   cache_file_option="--cache-file=${cache_file}" ;;
1944 *) # relative path
1945   cache_file_option="--cache-file=../${cache_file}" ;;
1946 esac
1947
1948 # Host dirs don't like to share a cache file either, horribly enough.
1949 # This seems to be due to autoconf 2.5x stupidity.
1950 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1951
1952 target_configargs=${baseargs}
1953
1954 # Passing a --with-cross-host argument lets the target libraries know
1955 # whether they are being built with a cross-compiler or being built
1956 # native.  However, it would be better to use other mechanisms to make the
1957 # sorts of decisions they want to make on this basis.  Please consider
1958 # this option to be deprecated.  FIXME.
1959 if test x${is_cross_compiler} = xyes ; then
1960   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1961 fi
1962
1963 # Default to --enable-multilib.
1964 if test x${enable_multilib} = x ; then
1965   target_configargs="--enable-multilib ${target_configargs}"
1966 fi
1967
1968 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1969 # changed from the earlier setting of with_newlib.
1970 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1971   target_configargs="--with-newlib ${target_configargs}"
1972 fi
1973
1974 # Different target subdirs use different values of certain variables
1975 # (notably CXX).  Worse, multilibs use *lots* of different values.
1976 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1977 # it doesn't automatically accept command-line overrides of them.
1978 # This means it's not safe for target subdirs to share a cache file,
1979 # which is disgusting, but there you have it.  Hopefully this can be
1980 # fixed in future.  It's still worthwhile to use a cache file for each
1981 # directory.  I think.
1982
1983 # Pass the appropriate --build, --host, --target and --cache-file arguments.
1984 # We need to pass --target, as newer autoconf's requires consistency
1985 # for target_alias and gcc doesn't manage it consistently.
1986 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
1987
1988 FLAGS_FOR_TARGET=
1989 case " $target_configdirs " in
1990  *" newlib "*)
1991   case " $target_configargs " in
1992   *" --with-newlib "*)
1993    case "$target" in
1994    *-cygwin*)
1995      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' ;;
1996    esac
1997
1998    # If we're not building GCC, don't discard standard headers.
1999    if test -d ${srcdir}/gcc; then
2000      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2001
2002      if test "${build}" != "${host}"; then
2003        # On Canadian crosses, CC_FOR_TARGET will have already been set
2004        # by `configure', so we won't have an opportunity to add -Bgcc/
2005        # to it.  This is right: we don't want to search that directory
2006        # for binaries, but we want the header files in there, so add
2007        # them explicitly.
2008        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2009
2010        # Someone might think of using the pre-installed headers on
2011        # Canadian crosses, in case the installed compiler is not fully
2012        # compatible with the compiler being built.  In this case, it
2013        # would be better to flag an error than risking having
2014        # incompatible object files being constructed.  We can't
2015        # guarantee that an error will be flagged, but let's hope the
2016        # compiler will do it, when presented with incompatible header
2017        # files.
2018      fi
2019    fi
2020
2021    case "${target}-${is_cross_compiler}" in
2022    i[[3456789]]86-*-linux*-no)
2023       # Here host == target, so we don't need to build gcc,
2024       # so we don't want to discard standard headers.
2025       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2026       ;;
2027    *)
2028       # If we're building newlib, use its generic headers last, but search
2029       # for any libc-related directories first (so make it the last -B
2030       # switch).
2031       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2032       ;;
2033    esac
2034    ;;
2035   esac
2036   ;;
2037 esac
2038
2039 # Allow the user to override the flags for
2040 # our build compiler if desired.
2041 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2042
2043 # On Canadian crosses, we'll be searching the right directories for
2044 # the previously-installed cross compiler, so don't bother to add
2045 # flags for directories within the install tree of the compiler
2046 # being built; programs in there won't even run.
2047 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2048   # Search for pre-installed headers if nothing else fits.
2049   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2050 fi
2051
2052 if test "x${use_gnu_ld}" = x &&
2053    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2054   # Arrange for us to find uninstalled linker scripts.
2055   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2056 fi
2057
2058 # Makefile fragments.
2059 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2060 do
2061   eval fragval=\$$frag
2062   if test $fragval != /dev/null; then
2063     eval $frag=${srcdir}/$fragval
2064   fi
2065 done
2066 AC_SUBST_FILE(host_makefile_frag)
2067 AC_SUBST_FILE(target_makefile_frag)
2068 AC_SUBST_FILE(alphaieee_frag)
2069 AC_SUBST_FILE(ospace_frag)
2070
2071 # Miscellanea: directories, flags, etc.
2072 AC_SUBST(RPATH_ENVVAR)
2073 AC_SUBST(BUILD_PREFIX)
2074 AC_SUBST(BUILD_PREFIX_1)
2075 AC_SUBST(tooldir)
2076 AC_SUBST(build_tooldir)
2077 AC_SUBST(CONFIGURE_GDB_TK)
2078 AC_SUBST(GDB_TK)
2079 AC_SUBST(INSTALL_GDB_TK)
2080
2081 # Build module lists & subconfigure args.
2082 AC_SUBST(build_configargs)
2083 AC_SUBST(build_configdirs)
2084
2085 # Host module lists & subconfigure args.
2086 AC_SUBST(host_configargs)
2087 AC_SUBST(configdirs)
2088
2089 # Target module lists & subconfigure args.
2090 AC_SUBST(target_configargs)
2091 AC_SUBST(target_configdirs)
2092
2093 # Build tools.
2094 AC_SUBST(CC_FOR_BUILD)
2095 AC_SUBST(config_shell)
2096
2097 # Generate default definitions for YACC, M4, LEX and other programs that run
2098 # on the build machine.  These are used if the Makefile can't locate these
2099 # programs in objdir.
2100 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2101
2102 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2103 case " $build_configdirs " in
2104   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2105   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2106 esac
2107
2108 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2109 case " $build_configdirs " in
2110   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2111 esac
2112
2113 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2114 case " $build_configdirs " in
2115   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2116 esac
2117
2118 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2119 case " $build_configdirs " in
2120   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2121   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2122 esac
2123
2124 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2125 case " $build_configdirs " in
2126   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2127 esac
2128
2129 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2130 case " $build_configdirs " in
2131   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2132   *)
2133 changequote(,)
2134     # For an installed makeinfo, we require it to be from texinfo 4.2 or
2135     # higher, else we use the "missing" dummy.
2136     if ${MAKEINFO} --version \
2137        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[2-9]|[5-9])' >/dev/null 2>&1; then
2138       :
2139     else
2140       MAKEINFO="$MISSING makeinfo"
2141     fi
2142     ;;
2143 changequote([,])
2144 esac
2145
2146 # FIXME: expect and dejagnu may become build tools?
2147
2148 AC_CHECK_PROGS(EXPECT, expect, expect)
2149 case " $configdirs " in
2150   *" expect "*)
2151     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2152     ;;
2153 esac
2154
2155 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2156 case " $configdirs " in
2157   *" dejagnu "*)
2158     test $host = $build && RUNTEST='$$r/$(HOST_SUBDIR)/dejagnu/runtest'
2159     ;;
2160 esac
2161
2162
2163 # Host tools.
2164 NCN_STRICT_CHECK_TOOLS(AR, ar)
2165 NCN_STRICT_CHECK_TOOLS(AS, as)
2166 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2167 NCN_STRICT_CHECK_TOOLS(LD, ld)
2168 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2169 NCN_STRICT_CHECK_TOOLS(NM, nm)
2170 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2171 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2172 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2173 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2174 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2175 AC_SUBST(CC)
2176 AC_SUBST(CXX)
2177 AC_SUBST(CFLAGS)
2178 AC_SUBST(CFLAGS_FOR_BUILD)
2179 AC_SUBST(CXXFLAGS)
2180
2181 # Target tools.
2182 NCN_STRICT_CHECK_TARGET_TOOLS(AR_FOR_TARGET, ar)
2183 NCN_STRICT_CHECK_TARGET_TOOLS(AS_FOR_TARGET, as)
2184 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2185 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2186 NCN_STRICT_CHECK_TARGET_TOOLS(DLLTOOL_FOR_TARGET, dlltool)
2187 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2188 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2189 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2190 NCN_STRICT_CHECK_TARGET_TOOLS(LD_FOR_TARGET, ld)
2191 NCN_STRICT_CHECK_TARGET_TOOLS(LIPO_FOR_TARGET, lipo)
2192 NCN_STRICT_CHECK_TARGET_TOOLS(NM_FOR_TARGET, nm)
2193 NCN_STRICT_CHECK_TARGET_TOOLS(OBJDUMP_FOR_TARGET, objdump)
2194 NCN_STRICT_CHECK_TARGET_TOOLS(RANLIB_FOR_TARGET, ranlib, :)
2195 NCN_STRICT_CHECK_TARGET_TOOLS(STRIP_FOR_TARGET, strip)
2196 NCN_STRICT_CHECK_TARGET_TOOLS(WINDRES_FOR_TARGET, windres)
2197
2198 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2199
2200 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2201 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2202 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2203 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2204                 [gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `test ! -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags || $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2205                 c++)
2206 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2207                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2208                 c++)
2209 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2210 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2211 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2212                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2213 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2214                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2215 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2216 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2217 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2218 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2219 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2220 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2221 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2222
2223 AC_SUBST(FLAGS_FOR_TARGET)
2224 AC_SUBST(RAW_CXX_FOR_TARGET)
2225
2226 # Certain tools may need extra flags.
2227 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2228 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2229 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2230
2231 # When building target libraries, except in a Canadian cross, we use
2232 # the same toolchain as the compiler we just built.
2233 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2234 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2235 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2236 if test $host = $build; then
2237   case " $configdirs " in
2238     *" gcc "*)
2239       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2240       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2241       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2242       ;;
2243   esac
2244 fi
2245
2246 AC_SUBST(COMPILER_AS_FOR_TARGET)
2247 AC_SUBST(COMPILER_LD_FOR_TARGET)
2248 AC_SUBST(COMPILER_NM_FOR_TARGET)
2249
2250 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2251 AC_ARG_ENABLE(maintainer-mode,
2252 [  --enable-maintainer-mode enable make rules and dependencies not useful
2253                           (and sometimes confusing) to the casual installer],
2254       USE_MAINTAINER_MODE=$enableval,
2255       USE_MAINTAINER_MODE=no)
2256 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2257 AC_SUBST(MAINTAINER_MODE_TRUE)
2258 AC_SUBST(MAINTAINER_MODE_FALSE)
2259 if test "$USE_MAINTAINER_MODE" = yes; then
2260   MAINTAINER_MODE_TRUE=
2261   MAINTAINER_MODE_FALSE='#'
2262 else
2263   MAINTAINER_MODE_TRUE='#'
2264   MAINTAINER_MODE_FALSE=
2265 fi
2266 MAINT=$MAINTAINER_MODE_TRUE
2267 AC_SUBST(MAINT)dnl
2268
2269 # ---------------------
2270 # GCC bootstrap support
2271 # ---------------------
2272
2273 # Stage specific cflags for build.
2274 stage1_cflags="-g"
2275 case $build in
2276   vax-*-*)
2277     case ${GCC} in
2278       yes) stage1_cflags="-g -Wa,-J" ;;
2279       *) stage1_cflags="-g -J" ;;
2280     esac ;;
2281   powerpc-*-darwin*)
2282     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2283     # sources; use -no-cpp-precomp to get to GNU cpp.
2284     # Apple's GCC has bugs in designated initializer handling, so disable
2285     # that too.
2286     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2287     ;;
2288 esac
2289 AC_SUBST(stage1_cflags)
2290
2291 # It makes debugging easier if we create as symlinks the stage directories
2292 # gcc for stageN-gcc and stagePREV-gcc for stage(N-1).  In case this is not
2293 # possible, however, we can resort to mv.
2294 AC_CACHE_CHECK([if symbolic links between directories work],
2295 [gcc_cv_prog_ln_s_dir],
2296 [if test "${LN_S}" = "ln -s" \
2297    && mkdir confdir.s1 \
2298    && ln -s confdir.s1 confdir.s2 \
2299    && echo timestamp1 > confdir.s1/conftest.1 \
2300    && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
2301    && echo timestamp2 > confdir.s2/conftest.2 \
2302    && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
2303    && rm -f confdir.s2; then
2304   gcc_cv_prog_ln_s_dir=yes
2305 else
2306   gcc_cv_prog_ln_s_dir=no
2307 fi
2308 rm -rf confdir.s1 confdir.s2])
2309
2310 case ${gcc_cv_prog_ln_s_dir} in
2311   yes)
2312     CREATE_LINK_TO_DIR='ln -s $$1 $$2'
2313     UNDO_LINK_TO_DIR='rm -f $$1' ;;
2314   *)
2315     CREATE_LINK_TO_DIR='mv $$1 $$2'
2316     UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
2317 esac
2318 AC_SUBST(CREATE_LINK_TO_DIR)
2319 AC_SUBST(UNDO_LINK_TO_DIR)
2320
2321 # Enable -Werror in bootstrap stage2 and later.
2322 # Change the default to "no" on release branches.
2323 AC_ARG_ENABLE(werror,
2324 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2325 [enable_werror=yes])
2326 case ${enable_werror} in
2327   yes) stage2_werror_flag="--enable-werror-always" ;;
2328   *) stage2_werror_flag="" ;;
2329 esac
2330 AC_SUBST(stage2_werror_flag)
2331
2332 AC_OUTPUT(Makefile)