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"
 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 bfd binutils ld gas opcodes 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 ${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*-*-symbianelf*)
 479     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 480     ;;
 481   arm-*-pe*)
 482     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 483     ;;
 484   thumb-*-coff)
 485     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 486     ;;
 487   thumb-*-elf)
 488     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 489     ;;
 490   thumb-*-pe)
 491     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 492     ;;
 493   arm-*-riscix*)
 494     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 495     ;;
 496   avr-*-*)
 497     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 498     ;;
 499   c4x-*-* | tic4x-*-*)
 500     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 501     ;;
 502   c54x*-*-* | tic54x-*-*)
 503     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 504     ;;
 505   cris-*-* | crisv32-*-*)
 506     unsupported_languages="$unsupported_languages java"
 507     case "${target}" in
 508       *-*-aout)
 509         unsupported_languages="$unsupported_languages f95"
 510         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 511       *-*-elf)
 512         unsupported_languages="$unsupported_languages f95"
 513         noconfigdirs="$noconfigdirs target-boehm-gc";;
 514       *-*-linux*)
 515         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 516       *)
 517         unsupported_languages="$unsupported_languages f95"
 518         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 519     esac
 520     ;;
 521   crx-*-*)
 522     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 523     ;;
 524   d10v-*-*)
 525     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 526     ;;
 527   d30v-*-*)
 528     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 529     ;;
 530   fr30-*-elf*)
 531     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 532     ;;
 533   frv-*-*)
 534     noconfigdirs="$noconfigdirs ${libgcj}"
 535     ;;
 536   h8300*-*-*)
 537     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 538     ;;
 539   h8500-*-*)
 540     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 541     ;;
 542   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 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   parisc*-*-linux* | hppa*-*-linux*)
 551     ;;
 552   hppa*-*-*elf* | \
 553   hppa*-*-lites* | \
 554   hppa*-*-openbsd* | \
 555   hppa*64*-*-*)
 556     noconfigdirs="$noconfigdirs ${libgcj}"
 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   i370-*-opened*)
 575     ;;
 576   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 577     noconfigdirs="$noconfigdirs ${libgcj}"
 578     ;;
 579   i[[3456789]]86-*-linux*)
 580     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 581     # not build java stuff by default.
 582     case "${target}" in
 583       *-*-*libc1*)
 584         noconfigdirs="$noconfigdirs ${libgcj}";;
 585     esac
 586
 587     # This section makes it possible to build newlib natively on linux.
 588     # If we are using a cross compiler then don't configure newlib.
 589     if test x${is_cross_compiler} != xno ; then
 590       noconfigdirs="$noconfigdirs target-newlib"
 591     fi
 592     noconfigdirs="$noconfigdirs target-libgloss"
 593     # If we are not using a cross compiler, do configure newlib.
 594     # Note however, that newlib will only be configured in this situation
 595     # if the --with-newlib option has been given, because otherwise
 596     # 'target-newlib' will appear in skipdirs.
 597     ;;
 598   i[[3456789]]86-*-mingw32*)
 599     target_configdirs="$target_configdirs target-mingw"
 600     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 601
 602     # Can't build gdb for mingw32 if not native.
 603     case "${host}" in
 604       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 605       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 606          ;;
 607     esac
 608     ;;
 609   *-*-cygwin*)
 610     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 611     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 612     # always build newlib if winsup directory is present.
 613     if test -d "$srcdir/winsup"; then
 614       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 615     elif test -d "$srcdir/newlib"; then
 616       echo "Warning: winsup is missing so newlib can't be built."
 617     fi
 618
 619     # Can't build gdb for Cygwin if not native.
 620     case "${host}" in
 621       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 622       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 623          ;;
 624     esac
 625     ;;
 626   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 627   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 628     ;;
 629   i[[3456789]]86-*-pe)
 630     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 631     ;;
 632   i[[3456789]]86-*-sco3.2v5*)
 633     # The linker does not yet know about weak symbols in COFF,
 634     # and is not configured to handle mixed ELF and COFF.
 635     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 636     ;;
 637   i[[3456789]]86-*-sco*)
 638     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 639     ;;
 640   i[[3456789]]86-*-solaris2*)
 641     noconfigdirs="$noconfigdirs target-libgloss"
 642     ;;
 643   i[[3456789]]86-*-sysv4*)
 644     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 645     ;;
 646   i[[3456789]]86-*-beos*)
 647     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 648     ;;
 649   m32r-*-*)
 650     noconfigdirs="$noconfigdirs ${libgcj}"
 651     ;;
 652   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 653     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 654     ;;
 655   m68k-*-elf*)
 656     noconfigdirs="$noconfigdirs ${libgcj}"
 657     ;;
 658   m68k-*-coff*)
 659     noconfigdirs="$noconfigdirs ${libgcj}"
 660     ;;
 661   mcore-*-pe*)
 662   # The EPOC C++ environment does not support exceptions or rtti,
 663   # and so building libstdc++-v3 tends not to always work.
 664     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 665     ;;
 666   mmix-*-*)
 667     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 668     unsupported_languages="$unsupported_languages f95 java"
 669     ;;
 670   mn10200-*-*)
 671     noconfigdirs="$noconfigdirs ${libgcj}"
 672     ;;
 673   mn10300-*-*)
 674     noconfigdirs="$noconfigdirs ${libgcj}"
 675     ;;
 676   ms1-*-*)
 677     noconfigdirs="$noconfigdirs sim"
 678     ;;
 679   powerpc-*-aix*)
 680     # copied from rs6000-*-* entry
 681     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 682     ;;
 683   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 684     target_configdirs="$target_configdirs target-winsup"
 685     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 686     # always build newlib.
 687     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 688     ;;
 689     # This is temporary until we can link against shared libraries
 690   powerpcle-*-solaris*)
 691     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 692     ;;
 693   powerpc-*-beos*)
 694     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 695     ;;
 696   powerpc-*-eabi)
 697     noconfigdirs="$noconfigdirs ${libgcj}"
 698     ;;
 699   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 700     ;;
 701   rs6000-*-lynxos*)
 702     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 703     ;;
 704   rs6000-*-aix*)
 705     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 706     ;;
 707   rs6000-*-*)
 708     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 709     ;;
 710   m68k-apollo-*)
 711     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 712     ;;
 713   mips*-*-irix5*)
 714     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 715     ;;
 716   mips*-*-irix6*)
 717     # Linking libjava exceeds command-line length limits on at least
 718     # IRIX 6.2, but not on IRIX 6.5.
 719     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 720     # <oldham@codesourcery.com>
 721     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 722     ;;
 723   mips*-dec-bsd*)
 724     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 725     ;;
 726   mips*-*-bsd*)
 727     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 728     ;;
 729   mipstx39-*-*)
 730     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 731     ;;
 732   mips64*-*-linux*)
 733     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 734     ;;
 735   mips*-*-linux*)
 736     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 737     ;;
 738   mips*-*-*)
 739     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 740     ;;
 741   romp-*-*)
 742     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 743     ;;
 744   sh-*-* | sh64-*-*)
 745     case "${host}" in
 746       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 747       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 748       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 749       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 750     esac
 751     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 752     ;;
 753   sparc-*-elf*)
 754     noconfigdirs="$noconfigdirs ${libgcj}"
 755     ;;
 756   sparc64-*-elf*)
 757     noconfigdirs="$noconfigdirs ${libgcj}"
 758     ;;
 759   sparclite-*-*)
 760     noconfigdirs="$noconfigdirs ${libgcj}"
 761     ;;
 762   sparc-*-sunos4*)
 763     noconfigdirs="$noconfigdirs ${libgcj}"
 764     if test x${is_cross_compiler} != xno ; then
 765            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 766     else
 767            use_gnu_ld=no
 768     fi
 769     ;;
 770   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 771     noconfigdirs="$noconfigdirs ${libgcj}"
 772     ;;
 773   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 774     ;;
 775   v810-*-*)
 776     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 777     ;;
 778   v850-*-*)
 779     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 780     ;;
 781   v850e-*-*)
 782     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 783     ;;
 784   v850ea-*-*)
 785     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 786     ;;
 787   vax-*-vms)
 788     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 789     ;;
 790   vax-*-*)
 791     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 792     ;;
 793   xtensa-*-*)
 794     noconfigdirs="$noconfigdirs ${libgcj}"
 795     ;;
 796   ip2k-*-*)
 797     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 798     ;;
 799   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 800     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 801     ;;
 802   *-*-lynxos*)
 803     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 804     ;;
 805   *-*-*)
 806     noconfigdirs="$noconfigdirs ${libgcj}"
 807     ;;
 808 esac
 809
 810 # If we aren't building newlib, then don't build libgloss, since libgloss
 811 # depends upon some newlib header files.
 812 case "${noconfigdirs}" in
 813   *target-libgloss*) ;;
 814   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 815 esac
 816
 817 # Work in distributions that contain no compiler tools, like Autoconf.
 818 tentative_cc=""
 819 host_makefile_frag=/dev/null
 820 if test -d ${srcdir}/config ; then
 821 case "${host}" in
 822   m68k-hp-hpux*)
 823     # Avoid "too much defining" errors from HPUX compiler.
 824     tentative_cc="cc -Wp,-H256000"
 825     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 826     # If it's HP/UX ar, this should be harmless.
 827     RANLIB="ar ts"
 828     ;;
 829   m68k-apollo-sysv*)
 830     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 831     ;;
 832   m68k-apollo-bsd*)
 833     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 834     # chokes on bfd, the compiler won't let you assign integers to enums, and
 835     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 836     # the apollo compiler" (the preferred version of GCC could be called cc,
 837     # or whatever), but I'm not sure leaving CC as cc is any better...
 838     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 839     # Used to have BISON=yacc.
 840     tentative_cc=gcc
 841     ;;
 842   m88k-dg-dgux*)
 843     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 844     ;;
 845   m88k-harris-cxux*)
 846     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 847     tentative_cc="cc -Xa"
 848     host_makefile_frag="config/mh-cxux"
 849     ;;
 850   m88k-motorola-sysv*)
 851     ;;
 852   mips*-dec-ultrix*)
 853     tentative_cc="cc -Wf,-XNg1000"
 854     host_makefile_frag="config/mh-decstation"
 855     ;;
 856   mips*-nec-sysv4*)
 857     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 858     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 859     host_makefile_frag="config/mh-necv4"
 860     ;;
 861   mips*-sgi-irix4*)
 862     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 863     # environment.  Also bump switch table size so that cp-parse will
 864     # compile.  Bump string length limit so linker builds.
 865     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 866     ;;
 867   mips*-*-sysv4*)
 868     host_makefile_frag="config/mh-sysv4"
 869     ;;
 870   mips*-*-sysv*)
 871     # This is for a MIPS running RISC/os 4.52C.
 872
 873     # This is needed for GDB, but needs to be in the top-level make because
 874     # if a library is compiled with the bsd headers and gets linked with the
 875     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 876     # a different size).
 877     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 878     # known except to select the sysv environment.  Could we use /proc instead?
 879     # These "sysv environments" and "bsd environments" often end up being a pain.
 880     #
 881     # This is not part of CFLAGS because perhaps not all C compilers have this
 882     # option.
 883     tentative_cc="cc -systype sysv"
 884     ;;
 885   i370-ibm-opened*)
 886     tentative_cc="c89"
 887     ;;
 888   i[[3456789]]86-*-sysv5*)
 889     host_makefile_frag="config/mh-sysv5"
 890     ;;
 891   i[[3456789]]86-*-dgux*)
 892     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 893     host_makefile_frag="config/mh-dgux386"
 894     ;;
 895   i[[3456789]]86-ncr-sysv4.3*)
 896     # The MetaWare compiler will generate a copyright message unless you
 897     # turn it off by adding the -Hnocopyr flag.
 898     tentative_cc="cc -Hnocopyr"
 899     ;;
 900   i[[3456789]]86-ncr-sysv4*)
 901     # for an NCR 3000 (i486/SVR4) system.
 902     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 903     # This compiler not only emits obnoxious copyright messages every time
 904     # you run it, but it chokes and dies on a whole bunch of GNU source
 905     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 906     tentative_cc="/usr/ccs/ATT/cc"
 907     host_makefile_frag="config/mh-ncr3000"
 908     ;;
 909   i[[3456789]]86-*-sco3.2v5*)
 910     ;;
 911   i[[3456789]]86-*-sco*)
 912     # The native C compiler botches some simple uses of const.  Unfortunately,
 913     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 914     tentative_cc="cc -Dconst="
 915     host_makefile_frag="config/mh-sco"
 916     ;;
 917   i[[3456789]]86-*-udk*)
 918     host_makefile_frag="config/mh-sysv5"
 919     ;;
 920   i[[3456789]]86-*-solaris2*)
 921     host_makefile_frag="config/mh-sysv4"
 922     ;;
 923   i[[3456789]]86-*-msdosdjgpp*)
 924     host_makefile_frag="config/mh-djgpp"
 925     ;;
 926   *-cygwin*)
 927     host_makefile_frag="config/mh-cygwin"
 928     ;;
 929   *-mingw32*)
 930     ;;
 931   *-interix*)
 932     host_makefile_frag="config/mh-interix"
 933     ;;
 934   vax-*-ultrix2*)
 935     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 936     tentative_cc=gcc
 937     ;;
 938   *-*-solaris2*)
 939     host_makefile_frag="config/mh-solaris"
 940     ;;
 941   m68k-sun-sunos*)
 942     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 943     # without overflowing the jump tables (-J says to use a 32 bit table)
 944     tentative_cc="cc -J"
 945     ;;
 946   *-hp-hpux*)
 947     tentative_cc="cc -Wp,-H256000"
 948     ;;
 949   *-*-hiux*)
 950     tentative_cc="cc -Wp,-H256000"
 951     ;;
 952   rs6000-*-lynxos*)
 953     # /bin/cc is less than useful for our purposes.  Always use GCC
 954     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 955     host_makefile_frag="config/mh-lynxrs6k"
 956     ;;
 957   powerpc-*-darwin*)
 958     host_makefile_frag="config/mh-ppc-darwin"
 959     ;;
 960   *-*-lynxos*)
 961     # /bin/cc is less than useful for our purposes.  Always use GCC
 962     tentative_cc="/bin/gcc"
 963     ;;
 964   *-*-sysv4*)
 965     host_makefile_frag="config/mh-sysv4"
 966     ;;
 967   # This is placed last to prevent interfering with the cases above.
 968   i[[3456789]]86-*-*)
 969     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 970     host_makefile_frag="config/mh-x86omitfp"
 971     ;;
 972 esac
 973 fi
 974
 975 # If we aren't going to be using gcc, see if we can extract a definition
 976 # of CC from the fragment.
 977 # Actually, use the 'pre-extracted' version above.
 978 if test -z "${CC}" && test "${build}" = "${host}" ; then
 979   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 980   found=
 981   for dir in $PATH; do
 982     test -z "$dir" && dir=.
 983     if test -f $dir/gcc; then
 984       found=yes
 985       break
 986     fi
 987   done
 988   IFS="$save_ifs"
 989   if test -z "${found}" && test -n "${tentative_cc}" ; then
 990     CC=$tentative_cc
 991   fi
 992 fi
 993
 994 if test "${build}" != "${host}" ; then
 995   # If we are doing a Canadian Cross, in which the host and build systems
 996   # are not the same, we set reasonable default values for the tools.
 997
 998   CC=${CC-${host_alias}-gcc}
 999   CFLAGS=${CFLAGS-"-g -O2"}
1000   CXX=${CXX-${host_alias}-c++}
1001   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1002   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1003   CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc}
1004   CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++}
1005   GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj}
1006   GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}}
1007   BUILD_PREFIX=${build_alias}-
1008   BUILD_PREFIX_1=${build_alias}-
1009
1010 else
1011   # Set reasonable default values for some tools even if not Canadian.
1012   # Of course, these are different reasonable default values, originally
1013   # specified directly in the Makefile.
1014   # We don't export, so that autoconf can do its job.
1015   # Note that all these settings are above the fragment inclusion point
1016   # in Makefile.in, so can still be overridden by fragments.
1017   # This is all going to change when we autoconfiscate...
1018
1019   CC_FOR_BUILD="\$(CC)"
1020   GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
1021   BUILD_PREFIX=
1022   BUILD_PREFIX_1=loser-
1023
1024   AC_PROG_CC
1025
1026   # We must set the default linker to the linker used by gcc for the correct
1027   # operation of libtool.  If LD is not defined and we are using gcc, try to
1028   # set the LD default to the ld used by gcc.
1029   if test -z "$LD"; then
1030     if test "$GCC" = yes; then
1031       case $build in
1032       *-*-mingw*)
1033         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1034       *)
1035         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1036       esac
1037       case $gcc_prog_ld in
1038       # Accept absolute paths.
1039       [[\\/]* | [A-Za-z]:[\\/]*)]
1040         LD="$gcc_prog_ld" ;;
1041       esac
1042     fi
1043   fi
1044
1045   CXX=${CXX-"c++"}
1046   CFLAGS=${CFLAGS-"-g"}
1047   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1048 fi
1049
1050 ACX_PROG_GNAT
1051 ACX_PROG_CMP_IGNORE_INITIAL
1052
1053 # Check for GMP and MPFR
1054 gmplibs=
1055 gmpinc=
1056 have_gmp=yes
1057 # Specify a location for mpfr
1058 # check for this first so it ends up on the link line before gmp.
1059 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1060
1061 if test "x$with_mpfr_dir" != x; then
1062   gmpinc="-I$with_mpfr_dir"
1063   gmplibs="$with_mpfr_dir/libmpfr.a"
1064 else
1065   gmplibs="-lmpfr"
1066 fi
1067
1068 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1069
1070 if test "x$with_mpfr" != x; then
1071   gmplibs="-L$with_mpfr/lib $gmplibs"
1072   gmpinc="-I$with_mpfr/include"
1073 fi
1074
1075 # Specify a location for gmp
1076 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1077
1078 if test "x$with_gmp_dir" != x; then
1079   gmpinc="$gmpinc -I$with_gmp_dir"
1080   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1081     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1082   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1083     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1084   fi
1085   # One of the later tests will catch the error if neither library is present.
1086 else
1087   gmplibs="$gmplibs -lgmp"
1088 fi
1089
1090 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1091
1092 if test "x$with_gmp" != x; then
1093   gmplibs="-L$with_gmp/lib $gmplibs"
1094   gmpinc="-I$with_gmp/include $gmpinc"
1095 fi
1096
1097 saved_CFLAGS="$CFLAGS"
1098 CFLAGS="$CFLAGS $gmpinc"
1099 # Check GMP actually works
1100 AC_MSG_CHECKING([for correct version of gmp.h])
1101 AC_TRY_COMPILE([#include "gmp.h"],[
1102 #if __GNU_MP_VERSION < 3
1103 choke me
1104 #endif
1105 ], [AC_MSG_RESULT([yes])],
1106   [AC_MSG_RESULT([no]); have_gmp=no])
1107
1108 if test x"$have_gmp" = xyes; then
1109   AC_MSG_CHECKING([for MPFR])
1110
1111   saved_LIBS="$LIBS"
1112   LIBS="$LIBS $gmplibs"
1113   AC_TRY_LINK([#include <gmp.h>
1114 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1115     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1116   LIBS="$saved_LIBS"
1117   CFLAGS="$saved_CFLAGS"
1118 fi
1119
1120 # Flags needed for both GMP and/or MPFR
1121 AC_SUBST(gmplibs)
1122 AC_SUBST(gmpinc)
1123
1124 # By default, C is the only stage 1 language.
1125 stage1_languages=c
1126 AC_SUBST(stage1_languages)
1127
1128 # Figure out what language subdirectories are present.
1129 # Look if the user specified --enable-languages="..."; if not, use
1130 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1131 # go away some day.
1132 # NB:  embedded tabs in this IF block -- do not untabify
1133 if test -d ${srcdir}/gcc; then
1134   if test x"${enable_languages+set}" != xset; then
1135     if test x"${LANGUAGES+set}" = xset; then
1136       enable_languages="${LANGUAGES}"
1137         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1138     else
1139       enable_languages=all
1140     fi
1141   else
1142     if test x"${enable_languages}" = x ||
1143        test x"${enable_languages}" = xyes;
1144        then
1145       echo configure.in: --enable-languages needs at least one language argument 1>&2
1146       exit 1
1147     fi
1148   fi
1149   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1150
1151   # First scan to see if an enabled language requires some other language.
1152   # We assume that a given config-lang.in will list all the language
1153   # front ends it requires, even if some are required indirectly.
1154   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1155     case ${lang_frag} in
1156       ..) ;;
1157       # The odd quoting in the next line works around
1158       # an apparent bug in bash 1.12 on linux.
1159       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1160       *)
1161         # From the config-lang.in, get $language, $lang_requires
1162         language=
1163         lang_requires=
1164         . ${lang_frag}
1165         for other in ${lang_requires} ; do
1166           case ,${enable_languages}, in
1167             *,$other,*) ;;
1168             *,all,*) ;;
1169             *,$language,*)
1170               echo " \`$other' language required by \`$language'; enabling" 1>&2
1171               enable_languages="${enable_languages},${other}"
1172               ;;
1173           esac
1174         done
1175         ;;
1176     esac
1177   done
1178
1179   new_enable_languages=c
1180   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1181   potential_languages=c
1182
1183   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1184     case ${lang_frag} in
1185       ..) ;;
1186       # The odd quoting in the next line works around
1187       # an apparent bug in bash 1.12 on linux.
1188       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1189       *)
1190         # From the config-lang.in, get $language, $target_libs,
1191         # $lang_dirs, $boot_language, and $build_by_default
1192         language=
1193         target_libs=
1194         lang_dirs=
1195         boot_language=
1196         build_by_default=
1197         need_gmp=
1198         . ${lang_frag}
1199         potential_languages="${potential_languages},${language}"
1200         # This is quite sensitive to the ordering of the case statement arms.
1201         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1202           *::*:*)
1203             echo "${lang_frag} doesn't set \$language." 1>&2
1204             exit 1
1205             ;;
1206           *:ada:no:*)
1207             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1208             add_this_lang=no
1209             ;;
1210           *,${language},*:*:*:*)
1211             # Language was explicitly selected; include it.
1212             add_this_lang=yes
1213             ;;
1214           *,all,*:*:*:no)
1215             # 'all' was selected, but this is not a default language
1216             # so do not include it.
1217             add_this_lang=no
1218             ;;
1219           *,all,*:*:*:*)
1220             # 'all' was selected and this is a default language; include it.
1221             add_this_lang=yes
1222             ;;
1223           *)
1224             add_this_lang=no
1225             ;;
1226         esac
1227
1228         # Disable languages that need GMP if it isn't available.
1229         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1230           *,${language},*:no:yes)
1231             # Specifically requested language; tell them.
1232             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1233             ;;
1234           *:no:yes)
1235             # Silently disable.
1236             add_this_lang=no
1237             ;;
1238         esac
1239
1240         # Disable a language that is unsupported by the target.
1241         case " $unsupported_languages " in
1242           *" $language "*)
1243             add_this_lang=no
1244             ;;
1245         esac
1246
1247         case $add_this_lang in
1248           no)
1249             # Remove language-dependent dirs.
1250             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1251             ;;
1252           *)
1253             new_enable_languages="$new_enable_languages,$language"
1254             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1255             case ${boot_language} in
1256               yes)
1257                 # Add to (comma-separated) list of stage 1 languages.
1258                 stage1_languages="${stage1_languages},${language}"
1259                 ;;
1260             esac
1261             ;;
1262         esac
1263         ;;
1264     esac
1265   done
1266
1267   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1268   if test "x$missing_languages" != x; then
1269     AC_MSG_ERROR([
1270 The following requested languages could not be built: ${missing_languages}
1271 Recognised languages are: ${potential_languages}])
1272   fi
1273
1274   if test "x$new_enable_languages" != "x$enable_languages"; then
1275     echo The following languages will be built: ${new_enable_languages}
1276   fi
1277   enable_languages="$new_enable_languages"
1278   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1279 fi
1280
1281 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1282 # $build_configdirs and $target_configdirs.
1283 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1284
1285 notsupp=""
1286 for dir in . $skipdirs $noconfigdirs ; do
1287   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1288   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1289     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1290     if test -r $srcdir/$dirname/configure ; then
1291       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1292         true
1293       else
1294         notsupp="$notsupp $dir"
1295       fi
1296     fi
1297   fi
1298   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1299     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1300     if test -r $srcdir/$dirname/configure ; then
1301       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1302         true
1303       else
1304         notsupp="$notsupp $dir"
1305       fi
1306     fi
1307   fi
1308   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1309     target_configdirs=`echo " ${target_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 done
1319
1320 # Sometimes the tools are distributed with libiberty but with no other
1321 # libraries.  In that case, we don't want to build target-libiberty.
1322 if test -n "${target_configdirs}" ; then
1323   others=
1324   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1325     if test "$i" != "libiberty" ; then
1326       if test -r $srcdir/$i/configure ; then
1327         others=yes;
1328         break;
1329       fi
1330     fi
1331   done
1332   if test -z "${others}" ; then
1333     target_configdirs=
1334   fi
1335 fi
1336
1337 # Quietly strip out all directories which aren't configurable in this tree.
1338 # This relies on all configurable subdirectories being autoconfiscated, which
1339 # is now the case.
1340 build_configdirs_all="$build_configdirs"
1341 build_configdirs=
1342 for i in ${build_configdirs_all} ; do
1343   j=`echo $i | sed -e s/build-//g`
1344   if test -f ${srcdir}/$j/configure ; then
1345     build_configdirs="${build_configdirs} $i"
1346   fi
1347 done
1348
1349 configdirs_all="$configdirs"
1350 configdirs=
1351 for i in ${configdirs_all} ; do
1352   if test -f ${srcdir}/$i/configure ; then
1353     configdirs="${configdirs} $i"
1354   fi
1355 done
1356
1357 target_configdirs_all="$target_configdirs"
1358 target_configdirs=
1359 for i in ${target_configdirs_all} ; do
1360   j=`echo $i | sed -e s/target-//g`
1361   if test -f ${srcdir}/$j/configure ; then
1362     target_configdirs="${target_configdirs} $i"
1363   fi
1364 done
1365
1366 # Produce a warning message for the subdirs we can't configure.
1367 # This isn't especially interesting in the Cygnus tree, but in the individual
1368 # FSF releases, it's important to let people know when their machine isn't
1369 # supported by the one or two programs in a package.
1370
1371 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1372   # If $appdirs is non-empty, at least one of those directories must still
1373   # be configured, or we error out.  (E.g., if the gas release supports a
1374   # specified target in some subdirs but not the gas subdir, we shouldn't
1375   # pretend that all is well.)
1376   if test -n "$appdirs" ; then
1377     for dir in $appdirs ; do
1378       if test -r $dir/Makefile.in ; then
1379         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1380           appdirs=""
1381           break
1382         fi
1383         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1384           appdirs=""
1385           break
1386         fi
1387       fi
1388     done
1389     if test -n "$appdirs" ; then
1390       echo "*** This configuration is not supported by this package." 1>&2
1391       exit 1
1392     fi
1393   fi
1394   # Okay, some application will build, or we don't care to check.  Still
1395   # notify of subdirs not getting built.
1396   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1397   echo "    ${notsupp}" 1>&2
1398   echo "    (Any other directories should still work fine.)" 1>&2
1399 fi
1400
1401 case "$host" in
1402   *msdosdjgpp*)
1403     enable_gdbtk=no ;;
1404 esac
1405
1406 copy_dirs=
1407
1408 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1409 # the named directory are copied to $(tooldir)/sys-include.
1410 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1411   if test x${is_cross_compiler} = xno ; then
1412     echo 1>&2 '***' --with-headers is only supported when cross compiling
1413     exit 1
1414   fi
1415   if test x"${with_headers}" != xyes ; then
1416     case "${exec_prefixoption}" in
1417     "") x=${prefix} ;;
1418     *) x=${exec_prefix} ;;
1419     esac
1420     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1421   fi
1422 fi
1423
1424 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1425 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1426 # are permitted.
1427 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1428   if test x${is_cross_compiler} = xno ; then
1429     echo 1>&2 '***' --with-libs is only supported when cross compiling
1430     exit 1
1431   fi
1432   if test x"${with_libs}" != xyes ; then
1433     # Copy the libraries in reverse order, so that files in the first named
1434     # library override files in subsequent libraries.
1435     case "${exec_prefixoption}" in
1436     "") x=${prefix} ;;
1437     *) x=${exec_prefix} ;;
1438     esac
1439     for l in ${with_libs}; do
1440       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1441     done
1442   fi
1443 fi
1444
1445 # Handle ${copy_dirs}
1446 set fnord ${copy_dirs}
1447 shift
1448 while test $# != 0 ; do
1449   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1450     :
1451   else
1452     echo Copying $1 to $2
1453
1454     # Use the install script to create the directory and all required
1455     # parent directories.
1456     if test -d $2 ; then
1457       :
1458     else
1459       echo >config.temp
1460       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1461     fi
1462
1463     # Copy the directory, assuming we have tar.
1464     # FIXME: Should we use B in the second tar?  Not all systems support it.
1465     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1466
1467     # It is the responsibility of the user to correctly adjust all
1468     # symlinks.  If somebody can figure out how to handle them correctly
1469     # here, feel free to add the code.
1470
1471     echo $1 > $2/COPIED
1472   fi
1473   shift; shift
1474 done
1475
1476 extra_arflags_for_target=
1477 extra_nmflags_for_target=
1478 extra_ranlibflags_for_target=
1479 target_makefile_frag=/dev/null
1480 case "${target}" in
1481   *-*-netware*)
1482     target_makefile_frag="config/mt-netware"
1483     ;;
1484   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1485     target_makefile_frag="config/mt-gnu"
1486     ;;
1487   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1488     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1489     # commands to handle both 32-bit and 64-bit objects.  These flags are
1490     # harmless if we're using GNU nm or ar.
1491     extra_arflags_for_target=" -X32_64"
1492     extra_nmflags_for_target=" -B -X32_64"
1493     ;;
1494   *-*-darwin*)
1495     # ranlib from Darwin requires the -c flag to look at common symbols.
1496     extra_ranlibflags_for_target=" -c"
1497     ;;
1498   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1499     target_makefile_frag="config/mt-wince"
1500     ;;
1501 esac
1502
1503 alphaieee_frag=/dev/null
1504 case $target in
1505   alpha*-*-*)
1506     # This just makes sure to use the -mieee option to build target libs.
1507     # This should probably be set individually by each library.
1508     alphaieee_frag="config/mt-alphaieee"
1509     ;;
1510 esac
1511
1512 # If --enable-target-optspace always use -Os instead of -O2 to build
1513 # the target libraries, similarly if it is not specified, use -Os
1514 # on selected platforms.
1515 ospace_frag=/dev/null
1516 case "${enable_target_optspace}:${target}" in
1517   yes:*)
1518     ospace_frag="config/mt-ospace"
1519     ;;
1520   :d30v-*)
1521     ospace_frag="config/mt-d30v"
1522     ;;
1523   :m32r-* | :d10v-* | :fr30-*)
1524     ospace_frag="config/mt-ospace"
1525     ;;
1526   no:* | :*)
1527     ;;
1528   *)
1529     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1530     ;;
1531 esac
1532
1533 # Set with_gnu_as and with_gnu_ld as appropriate.
1534 #
1535 # This is done by determining whether or not the appropriate directory
1536 # is available, and by checking whether or not specific configurations
1537 # have requested that this magic not happen.
1538 #
1539 # The command line options always override the explicit settings in
1540 # configure.in, and the settings in configure.in override this magic.
1541 #
1542 # If the default for a toolchain is to use GNU as and ld, and you don't
1543 # want to do that, then you should use the --without-gnu-as and
1544 # --without-gnu-ld options for the configure script.
1545
1546 if test x${use_gnu_as} = x &&
1547    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1548   with_gnu_as=yes
1549   extra_host_args="$extra_host_args --with-gnu-as"
1550 fi
1551
1552 if test x${use_gnu_ld} = x &&
1553    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1554   with_gnu_ld=yes
1555   extra_host_args="$extra_host_args --with-gnu-ld"
1556 fi
1557
1558 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1559 # can detect this case.
1560
1561 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1562   with_newlib=yes
1563   extra_host_args="$extra_host_args --with-newlib"
1564 fi
1565
1566 # Default to using --with-stabs for certain targets.
1567 if test x${with_stabs} = x ; then
1568   case "${target}" in
1569   mips*-*-irix[[56]]*)
1570     ;;
1571   mips*-*-* | alpha*-*-osf*)
1572     with_stabs=yes;
1573     extra_host_args="${extra_host_args} --with-stabs"
1574     ;;
1575   esac
1576 fi
1577
1578 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1579 # them automatically.
1580 case "${host}" in
1581   hppa*64*-*-hpux11*)
1582     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1583     ;;
1584 esac
1585
1586 # Some systems (e.g., one of the i386-aix systems the gas testers are
1587 # using) don't handle "\$" correctly, so don't use it here.
1588 tooldir='${exec_prefix}'/${target_alias}
1589 build_tooldir=${tooldir}
1590
1591 # Generate default definitions for YACC, M4, LEX and other programs that run
1592 # on the build machine.  These are used if the Makefile can't locate these
1593 # programs in objdir.
1594 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
1595 AC_CHECK_PROGS([CONFIGURED_BISON], [bison], [$MISSING bison])
1596 AC_CHECK_PROGS([CONFIGURED_YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
1597 AC_CHECK_PROGS([CONFIGURED_M4], [gm4 gnum4 m4], [$MISSING m4])
1598 AC_CHECK_PROGS([CONFIGURED_FLEX], [flex], [$MISSING flex])
1599 AC_CHECK_PROGS([CONFIGURED_LEX], [flex lex], [$MISSING flex])
1600 AC_CHECK_PROGS([CONFIGURED_MAKEINFO], makeinfo, [$MISSING makeinfo])
1601
1602 # Create a .gdbinit file which runs the one in srcdir
1603 # and tells GDB to look there for source files.
1604
1605 if test -r ${srcdir}/.gdbinit ; then
1606   case ${srcdir} in
1607     .) ;;
1608     *) cat > ./.gdbinit <<EOF
1609 # ${NO_EDIT}
1610 dir ${srcdir}
1611 dir .
1612 source ${srcdir}/.gdbinit
1613 EOF
1614     ;;
1615   esac
1616 fi
1617
1618 # Make sure that the compiler is able to generate an executable.  If it
1619 # can't, we are probably in trouble.  We don't care whether we can run the
1620 # executable--we might be using a cross compiler--we only care whether it
1621 # can be created.  At this point the main configure script has set CC.
1622 we_are_ok=no
1623 echo "int main () { return 0; }" > conftest.c
1624 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1625 if test $? = 0 ; then
1626   if test -s conftest || test -s conftest.exe ; then
1627     we_are_ok=yes
1628   fi
1629 fi
1630 case $we_are_ok in
1631   no)
1632     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1633     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1634     rm -f conftest*
1635     exit 1
1636     ;;
1637 esac
1638 rm -f conftest*
1639
1640 # The Solaris /usr/ucb/cc compiler does not appear to work.
1641 case "${host}" in
1642   sparc-sun-solaris2*)
1643       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1644       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1645           could_use=
1646           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1647           if test -d /opt/cygnus/bin ; then
1648               if test "$could_use" = "" ; then
1649                   could_use="/opt/cygnus/bin"
1650               else
1651                   could_use="$could_use or /opt/cygnus/bin"
1652               fi
1653           fi
1654         if test "$could_use" = "" ; then
1655             echo "Warning: compilation may fail because you're using"
1656             echo "/usr/ucb/cc.  You should change your PATH or CC "
1657             echo "variable and rerun configure."
1658         else
1659             echo "Warning: compilation may fail because you're using"
1660             echo "/usr/ucb/cc, when you should use the C compiler from"
1661             echo "$could_use.  You should change your"
1662             echo "PATH or CC variable and rerun configure."
1663         fi
1664       fi
1665   ;;
1666 esac
1667
1668 case "${host}" in
1669   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1670   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1671   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1672 esac
1673
1674 # Record target_configdirs and the configure arguments for target and
1675 # build configuration in Makefile.
1676 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1677 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1678
1679 # Determine whether gdb needs tk/tcl or not.
1680 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1681 # and in that case we want gdb to be built without tk.  Ugh!
1682 # In fact I believe gdb is the *only* package directly dependent on tk,
1683 # so we should be able to put the 'maybe's in unconditionally and
1684 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1685 # 100% sure that that's safe though.
1686
1687 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1688 case "$enable_gdbtk" in
1689   no)
1690     GDB_TK="" ;;
1691   yes)
1692     GDB_TK="${gdb_tk}" ;;
1693   *)
1694     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1695     # distro.  Eventually someone will fix this and move Insight, nee
1696     # gdbtk to a separate directory.
1697     if test -d ${srcdir}/gdb/gdbtk ; then
1698       GDB_TK="${gdb_tk}"
1699     else
1700       GDB_TK=""
1701     fi
1702     ;;
1703 esac
1704
1705 # Strip out unwanted targets.
1706
1707 # While at that, we remove Makefiles if we were started for recursive
1708 # configuration, so that the top-level Makefile reconfigures them,
1709 # like we used to do when configure itself was recursive.
1710
1711 # Loop over modules.  $extrasub must be used with care, limiting as
1712 # much as possible the usage of range addresses.  That's because autoconf
1713 # splits the sed script to overcome limits in the number of commands,
1714 # and relying on carefully-timed sed passes may turn out to be very hard
1715 # to maintain later.  In this particular case, you just have to be careful
1716 # not to nest @if/@endif pairs, because configure will not warn you at all.
1717
1718 AC_ARG_ENABLE([bootstrap],
1719 [  --enable-bootstrap[=lean]     Enable bootstrapping [no]],,
1720 enable_bootstrap=default)
1721
1722 # Issue errors and warnings for invalid/strange bootstrap combinations.
1723 case "$configdirs" in
1724   *gcc*) have_compiler=yes ;;
1725   *) have_compiler=no ;;
1726 esac
1727
1728 case "$have_compiler:$host:$target:$enable_bootstrap" in
1729   *:*:*:no) ;;
1730
1731   # Default behavior.  (We'll) enable bootstrap if we have a compiler
1732   # and we are in a native configuration.
1733   yes:$build:$build:default)
1734     # This will become 'yes'
1735     enable_bootstrap=no ;;
1736
1737   *:*:*:default)
1738     enable_bootstrap=no ;;
1739
1740   # We have a compiler and we are in a native configuration, bootstrap is ok
1741   yes:$build:$build:yes | yes:$build:$build:lean)
1742     ;;
1743
1744   # Other configurations, but we have a compiler.  Assume the user knows
1745   # what he's doing.
1746   yes:*:*:yes | yes:*:*:lean)
1747     AC_MSG_WARN([trying to bootstrap a cross compiler])
1748     ;;
1749
1750   # No compiler: if they passed --enable-bootstrap explicitly, fail
1751   no:*:*:yes | no:*:*:lean)
1752     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1753
1754   # Fail if wrong command line
1755   *)
1756     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1757     ;;
1758 esac
1759
1760 # Adjust the toplevel makefile according to whether bootstrap was selected.
1761 case "$enable_bootstrap" in
1762   yes)
1763     bootstrap_lean='#'
1764     default_target=bootstrap
1765     bootstrap_suffix=bootstrap ;;
1766   lean)
1767     bootstrap_lean=''
1768     default_target=bootstrap
1769     bootstrap_suffix=bootstrap ;;
1770   no)
1771     default_target=all
1772     bootstrap_suffix=no-bootstrap ;;
1773 esac
1774 AC_SUBST(bootstrap_lean)
1775 AC_SUBST(default_target)
1776
1777 for module in ${build_configdirs} ; do
1778   if test -z "${no_recursion}" \
1779      && test -f ${build_subdir}/${module}/Makefile; then
1780     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1781     rm -f ${build_subdir}/${module}/Makefile
1782   fi
1783   extrasub="$extrasub
1784 /^@if build-$module\$/d
1785 /^@endif build-$module\$/d
1786 /^@if build-$module-$bootstrap_suffix\$/d
1787 /^@endif build-$module-$bootstrap_suffix\$/d"
1788 done
1789 for module in ${configdirs} ; do
1790   if test -z "${no_recursion}" \
1791      && test -f ${module}/Makefile; then
1792     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1793     rm -f ${module}/Makefile
1794   fi
1795   extrasub="$extrasub
1796 /^@if $module\$/d
1797 /^@endif $module\$/d
1798 /^@if $module-$bootstrap_suffix\$/d
1799 /^@endif $module-$bootstrap_suffix\$/d"
1800 done
1801 for module in ${target_configdirs} ; do
1802   if test -z "${no_recursion}" \
1803      && test -f ${target_subdir}/${module}/Makefile; then
1804     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1805     rm -f ${target_subdir}/${module}/Makefile
1806   fi
1807   extrasub="$extrasub
1808 /^@if target-$module\$/d
1809 /^@endif target-$module\$/d
1810 /^@if target-$module-$bootstrap_suffix\$/d
1811 /^@endif target-$module-$bootstrap_suffix\$/d"
1812 done
1813
1814 extrasub="$extrasub
1815 /^@if /,/^@endif /d"
1816
1817 # Create the serialization dependencies.  This uses a temporary file.
1818
1819 AC_ARG_ENABLE([serial-configure],
1820 [  --enable-serial-[{host,target,build}-]configure
1821                           Force sequential configuration of
1822                           sub-packages for the host, target or build
1823                           machine, or all sub-packages])
1824
1825 case ${enable_serial_configure} in
1826   yes)
1827     enable_serial_build_configure=yes
1828     enable_serial_host_configure=yes
1829     enable_serial_target_configure=yes
1830     ;;
1831 esac
1832
1833 # These force 'configure's to be done one at a time, to avoid problems
1834 # with contention over a shared config.cache.
1835 rm -f serdep.tmp
1836 echo '# serdep.tmp' > serdep.tmp
1837 olditem=
1838 test "x${enable_serial_build_configure}" = xyes &&
1839 for item in ${build_configdirs} ; do
1840   case ${olditem} in
1841     "") ;;
1842     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1843   esac
1844   olditem=${item}
1845 done
1846 olditem=
1847 test "x${enable_serial_host_configure}" = xyes &&
1848 for item in ${configdirs} ; do
1849   case ${olditem} in
1850     "") ;;
1851     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1852   esac
1853   olditem=${item}
1854 done
1855 olditem=
1856 test "x${enable_serial_target_configure}" = xyes &&
1857 for item in ${target_configdirs} ; do
1858   case ${olditem} in
1859     "") ;;
1860     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1861   esac
1862   olditem=${item}
1863 done
1864 serialization_dependencies=serdep.tmp
1865 AC_SUBST_FILE(serialization_dependencies)
1866
1867 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1868 # target and nonopt.  These are the ones we might not want to pass
1869 # down to subconfigures.  Also strip program-prefix, program-suffix,
1870 # and program-transform-name, so that we can pass down a consistent
1871 # program-transform-name.  If autoconf has put single quotes around
1872 # any of these arguments (because they contain shell metacharacters)
1873 # then this will fail; in practice this only happens for
1874 # --program-transform-name, so be sure to override --program-transform-name
1875 # at the end of the argument list.
1876 # These will be expanded by make, so quote '$'.
1877 cat <<\EOF_SED > conftestsed
1878 s/ --no[[^ ]]*/ /g
1879 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1880 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1881 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1882 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1883 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1884 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1885 s/ -cache-file[[= ]][[^ ]]*//g
1886 s/ -srcdir[[= ]][[^ ]]*//g
1887 s/ -host[[= ]][[^ ]]*//g
1888 s/ -build[[= ]][[^ ]]*//g
1889 s/ -target[[= ]][[^ ]]*//g
1890 s/ -program-prefix[[= ]][[^ ]]*//g
1891 s/ -program-suffix[[= ]][[^ ]]*//g
1892 s/ -program-transform-name[[= ]][[^ ]]*//g
1893 s/ [[^' -][^ ]*] / /
1894 s/^ *//;s/ *$//
1895 s,\$,$$,g
1896 EOF_SED
1897 sed -f conftestsed <<EOF_SED > conftestsed.out
1898  ${ac_configure_args}
1899 EOF_SED
1900 baseargs=`cat conftestsed.out`
1901 rm -f conftestsed conftestsed.out
1902
1903 # Add in --program-transform-name, after --program-prefix and
1904 # --program-suffix have been applied to it.  Autoconf has already
1905 # doubled dollar signs and backslashes in program_transform_name; we want
1906 # the backslashes un-doubled, and then the entire thing wrapped in single
1907 # quotes, because this will be expanded first by make and then by the shell.
1908 # Also, because we want to override the logic in subdir configure scripts to
1909 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1910 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1911 ${program_transform_name}
1912 EOF_SED
1913 gcc_transform_name=`cat conftestsed.out`
1914 rm -f conftestsed.out
1915 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1916
1917 # For the build-side libraries, we just need to pretend we're native,
1918 # and not use the same cache file.  Multilibs are neither needed nor
1919 # desired.
1920 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
1921
1922 # For host modules, accept cache file option, or specification as blank.
1923 case "${cache_file}" in
1924 "") # empty
1925   cache_file_option="" ;;
1926 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1927   cache_file_option="--cache-file=${cache_file}" ;;
1928 *) # relative path
1929   cache_file_option="--cache-file=../${cache_file}" ;;
1930 esac
1931
1932 # Host dirs don't like to share a cache file either, horribly enough.
1933 # This seems to be due to autoconf 2.5x stupidity.
1934 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1935
1936 target_configargs=${baseargs}
1937
1938 # Passing a --with-cross-host argument lets the target libraries know
1939 # whether they are being built with a cross-compiler or being built
1940 # native.  However, it would be better to use other mechanisms to make the
1941 # sorts of decisions they want to make on this basis.  Please consider
1942 # this option to be deprecated.  FIXME.
1943 if test x${is_cross_compiler} = xyes ; then
1944   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1945 fi
1946
1947 # Default to --enable-multilib.
1948 if test x${enable_multilib} = x ; then
1949   target_configargs="--enable-multilib ${target_configargs}"
1950 fi
1951
1952 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1953 # changed from the earlier setting of with_newlib.
1954 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1955   target_configargs="--with-newlib ${target_configargs}"
1956 fi
1957
1958 # Different target subdirs use different values of certain variables
1959 # (notably CXX).  Worse, multilibs use *lots* of different values.
1960 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1961 # it doesn't automatically accept command-line overrides of them.
1962 # This means it's not safe for target subdirs to share a cache file,
1963 # which is disgusting, but there you have it.  Hopefully this can be
1964 # fixed in future.  It's still worthwhile to use a cache file for each
1965 # directory.  I think.
1966
1967 # Pass the appropriate --build, --host, --target and --cache-file arguments.
1968 # We need to pass --target, as newer autoconf's requires consistency
1969 # for target_alias and gcc doesn't manage it consistently.
1970 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
1971
1972 FLAGS_FOR_TARGET=
1973 case " $target_configdirs " in
1974  *" newlib "*)
1975   case " $target_configargs " in
1976   *" --with-newlib "*)
1977    case "$target" in
1978    *-cygwin*)
1979      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/include -isystem $$s/winsup/cygwin/include -isystem $$s/winsup/w32api/include' ;;
1980    esac
1981
1982    # If we're not building GCC, don't discard standard headers.
1983    if test -d ${srcdir}/gcc; then
1984      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1985
1986      if test "${build}" != "${host}"; then
1987        # On Canadian crosses, CC_FOR_TARGET will have already been set
1988        # by `configure', so we won't have an opportunity to add -Bgcc/
1989        # to it.  This is right: we don't want to search that directory
1990        # for binaries, but we want the header files in there, so add
1991        # them explicitly.
1992        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
1993
1994        # Someone might think of using the pre-installed headers on
1995        # Canadian crosses, in case the installed compiler is not fully
1996        # compatible with the compiler being built.  In this case, it
1997        # would be better to flag an error than risking having
1998        # incompatible object files being constructed.  We can't
1999        # guarantee that an error will be flagged, but let's hope the
2000        # compiler will do it, when presented with incompatible header
2001        # files.
2002      fi
2003    fi
2004
2005    case "${target}-${is_cross_compiler}" in
2006    i[[3456789]]86-*-linux*-no)
2007       # Here host == target, so we don't need to build gcc,
2008       # so we don't want to discard standard headers.
2009       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2010       ;;
2011    *)
2012       # If we're building newlib, use its generic headers last, but search
2013       # for any libc-related directories first (so make it the last -B
2014       # switch).
2015       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2016       ;;
2017    esac
2018    ;;
2019   esac
2020   ;;
2021 esac
2022
2023 # Allow the user to override the flags for
2024 # our build compiler if desired.
2025 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2026
2027 # On Canadian crosses, we'll be searching the right directories for
2028 # the previously-installed cross compiler, so don't bother to add
2029 # flags for directories within the install tree of the compiler
2030 # being built; programs in there won't even run.
2031 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2032   # Search for pre-installed headers if nothing else fits.
2033   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2034 fi
2035
2036 if test "x${use_gnu_ld}" = x &&
2037    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2038   # Arrange for us to find uninstalled linker scripts.
2039   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2040 fi
2041
2042 if test "x${CC_FOR_TARGET+set}" = xset; then
2043   :
2044 elif test -d ${srcdir}/gcc; then
2045   CC_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/'
2046 elif test "$host" = "$target"; then
2047   CC_FOR_TARGET='$(CC)'
2048 else
2049   CC_FOR_TARGET=`echo gcc | sed "${program_transform_name}"`
2050 fi
2051 CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2052
2053 if test "x${GCJ_FOR_TARGET+set}" = xset; then
2054   :
2055 elif test -d ${srcdir}/gcc; then
2056   GCJ_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/'
2057 elif test "$host" = "$target"; then
2058   GCJ_FOR_TARGET='gcj'
2059 else
2060   GCJ_FOR_TARGET=`echo gcj | sed "${program_transform_name}"`
2061 fi
2062 GCJ_FOR_TARGET=$GCJ_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2063
2064 if test "x${GFORTRAN_FOR_TARGET+set}" = xset; then
2065   :
2066 elif test -d ${srcdir}/gcc; then
2067   GFORTRAN_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/'
2068 elif test "$host" = "$target"; then
2069   GFORTRAN_FOR_TARGET='gfortran'
2070 else
2071   GFORTRAN_FOR_TARGET=`echo gfortran | sed "${program_transform_name}"`
2072 fi
2073 case $GFORTRAN_FOR_TARGET in
2074 *' $(FLAGS_FOR_TARGET)') ;;
2075 *) GFORTRAN_FOR_TARGET=$GFORTRAN_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
2076 esac
2077
2078 # Don't use libstdc++-v3's flags to configure/build itself.
2079 libstdcxx_flags='`test ! -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags || $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2080 raw_libstdcxx_flags='-L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2081
2082 if test "x${CXX_FOR_TARGET+set}" = xset; then
2083   if test "x${RAW_CXX_FOR_TARGET+set}" != xset; then
2084     RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2085   fi
2086 elif test -d ${srcdir}/gcc; then
2087   # We add -shared-libgcc to CXX_FOR_TARGET whenever we use xgcc instead
2088   # of g++ for linking C++ or Java, because g++ has -shared-libgcc by
2089   # default whereas gcc does not.
2090   # RAW_CXX_FOR_TARGET is for linking C++ or java; CXX_FOR_TARGET is for
2091   # all other cases.
2092   CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ '$libstdcxx_flags
2093   RAW_CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ '$raw_libstdcxx_flags
2094 elif test "$host" = "$target"; then
2095   CXX_FOR_TARGET='$(CXX)'
2096   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2097 else
2098   CXX_FOR_TARGET=`echo c++ | sed "${program_transform_name}"`
2099   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2100 fi
2101 CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2102 RAW_CXX_FOR_TARGET=$RAW_CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2103
2104 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2105 qRAW_CXX_FOR_TARGET=`echo "$RAW_CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2106
2107 # We want to defer the evaluation of `cmd`s and shell variables in
2108 # CXX_FOR_TARGET when recursing in the top-level Makefile, such as for
2109 # bootstrap.  We'll enclose CXX_FOR_TARGET_FOR_RECURSIVE_MAKE in single
2110 # quotes, but we still have to duplicate `$'s so that shell variables
2111 # can be expanded by the nested make as shell variables, not as make
2112 # macros.
2113 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2114 qqRAW_CXX_FOR_TARGET=`echo "$qRAW_CXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2115
2116 # Wrap CC_FOR_TARGET and friends, for certain types of builds.
2117 CC_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${CC_FOR_TARGET}"
2118 GCJ_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GCJ_FOR_TARGET}"
2119 GFORTRAN_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GFORTRAN_FOR_TARGET}"
2120 CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qCXX_FOR_TARGET}"
2121 RAW_CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qRAW_CXX_FOR_TARGET}"
2122 CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqCXX_FOR_TARGET}"
2123 RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqRAW_CXX_FOR_TARGET}"
2124
2125 # Makefile fragments.
2126 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2127 do
2128   eval fragval=\$$frag
2129   if test $fragval != /dev/null; then
2130     eval $frag=${srcdir}/$fragval
2131   fi
2132 done
2133 AC_SUBST_FILE(host_makefile_frag)
2134 AC_SUBST_FILE(target_makefile_frag)
2135 AC_SUBST_FILE(alphaieee_frag)
2136 AC_SUBST_FILE(ospace_frag)
2137
2138 # Miscellanea: directories, flags, etc.
2139 AC_SUBST(RPATH_ENVVAR)
2140 AC_SUBST(BUILD_PREFIX)
2141 AC_SUBST(BUILD_PREFIX_1)
2142 AC_SUBST(tooldir)
2143 AC_SUBST(build_tooldir)
2144 AC_SUBST(GDB_TK)
2145
2146 # Build module lists & subconfigure args.
2147 AC_SUBST(build_configargs)
2148 AC_SUBST(build_configdirs)
2149
2150 # Host module lists & subconfigure args.
2151 AC_SUBST(host_configargs)
2152 AC_SUBST(configdirs)
2153
2154 # Target module lists & subconfigure args.
2155 AC_SUBST(target_configargs)
2156 AC_SUBST(target_configdirs)
2157
2158 # Build tools.
2159 AC_SUBST(CC_FOR_BUILD)
2160 AC_SUBST(config_shell)
2161
2162 # Host tools.
2163 NCN_STRICT_CHECK_TOOL(AR, ar)
2164 NCN_STRICT_CHECK_TOOL(AS, as)
2165 NCN_STRICT_CHECK_TOOL(DLLTOOL, dlltool)
2166 NCN_STRICT_CHECK_TOOL(LD, ld)
2167 NCN_STRICT_CHECK_TOOL(NM, nm)
2168 NCN_STRICT_CHECK_TOOL(RANLIB, ranlib, :)
2169 NCN_STRICT_CHECK_TOOL(WINDRES, windres)
2170 NCN_STRICT_CHECK_TOOL(OBJCOPY, objcopy)
2171 NCN_STRICT_CHECK_TOOL(OBJDUMP, objdump)
2172 AC_SUBST(CC)
2173 AC_SUBST(CXX)
2174 AC_SUBST(CFLAGS)
2175 AC_SUBST(CFLAGS_FOR_BUILD)
2176 AC_SUBST(CXXFLAGS)
2177
2178 # Target tools.
2179 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AR_FOR_TARGET, ar)
2180 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AS_FOR_TARGET, as)
2181 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_DLLTOOL_FOR_TARGET, dlltool)
2182 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_LD_FOR_TARGET, ld)
2183 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_NM_FOR_TARGET, nm)
2184 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_RANLIB_FOR_TARGET, ranlib, :)
2185 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_WINDRES_FOR_TARGET, windres)
2186
2187 AC_SUBST(GCC_FOR_TARGET)
2188 AC_SUBST(FLAGS_FOR_TARGET)
2189 AC_SUBST(CC_FOR_TARGET)
2190 AC_SUBST(GCJ_FOR_TARGET)
2191 AC_SUBST(GFORTRAN_FOR_TARGET)
2192 AC_SUBST(CXX_FOR_TARGET)
2193 AC_SUBST(RAW_CXX_FOR_TARGET)
2194 AC_SUBST(CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2195 AC_SUBST(RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2196
2197 # Fix up target tools.
2198 if test "x${build}" = "x${host}" ; then
2199   # In this case, the newly built tools can and should be used,
2200   # so we override the results of the autoconf tests.
2201   # This should really only happen when the tools are actually being built,
2202   # but that's a further refinement.  The new build scheme, where
2203   # tools are built into a structure paralleling where they're installed,
2204   # should also eliminate all of this cleanly.
2205   AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
2206   AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
2207   DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
2208   LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
2209   NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
2210   RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
2211   WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
2212 else
2213   # Just use the ones we found.
2214   AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)"
2215   AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)"
2216   DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)"
2217   LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)"
2218   NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)"
2219   RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)"
2220   WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)"
2221 fi
2222 AC_SUBST(AR_FOR_TARGET)
2223 AC_SUBST(AS_FOR_TARGET)
2224 AC_SUBST(DLLTOOL_FOR_TARGET)
2225 AC_SUBST(LD_FOR_TARGET)
2226 AC_SUBST(NM_FOR_TARGET)
2227 AC_SUBST(RANLIB_FOR_TARGET)
2228 AC_SUBST(WINDRES_FOR_TARGET)
2229
2230 # Certain tools may need extra flags.
2231 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2232 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2233 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2234
2235 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2236 AC_ARG_ENABLE(maintainer-mode,
2237 [  --enable-maintainer-mode enable make rules and dependencies not useful
2238                           (and sometimes confusing) to the casual installer],
2239       USE_MAINTAINER_MODE=$enableval,
2240       USE_MAINTAINER_MODE=no)
2241 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2242 AC_SUBST(MAINTAINER_MODE_TRUE)
2243 AC_SUBST(MAINTAINER_MODE_FALSE)
2244 if test "$USE_MAINTAINER_MODE" = yes; then
2245   MAINTAINER_MODE_TRUE=
2246   MAINTAINER_MODE_FALSE='#'
2247 else
2248   MAINTAINER_MODE_TRUE='#'
2249   MAINTAINER_MODE_FALSE=
2250 fi
2251 MAINT=$MAINTAINER_MODE_TRUE
2252 AC_SUBST(MAINT)dnl
2253
2254 # ---------------------
2255 # GCC bootstrap support
2256 # ---------------------
2257
2258 # Stage specific cflags for build.
2259 stage1_cflags="-g"
2260 case $build in
2261   vax-*-*)
2262     case ${GCC} in
2263       yes) stage1_cflags="-g -Wa,-J" ;;
2264       *) stage1_cflags="-g -J" ;;
2265     esac ;;
2266   powerpc-*-darwin*)
2267     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2268     # sources; use -no-cpp-precomp to get to GNU cpp.
2269     # Apple's GCC has bugs in designated initializer handling, so disable
2270     # that too.
2271     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2272     ;;
2273 esac
2274 AC_SUBST(stage1_cflags)
2275
2276 # It makes debugging easier if we create as symlinks the stage directories
2277 # gcc for stageN-gcc and stagePREV-gcc for stage(N-1).  In case this is not
2278 # possible, however, we can resort to mv.
2279 AC_CACHE_CHECK([if symbolic links between directories work],
2280 [gcc_cv_prog_ln_s_dir],
2281 [if test "${LN_S}" = "ln -s" \
2282    && mkdir confdir.s1 \
2283    && ln -s confdir.s1 confdir.s2 \
2284    && echo timestamp1 > confdir.s1/conftest.1 \
2285    && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
2286    && echo timestamp2 > confdir.s2/conftest.2 \
2287    && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
2288    && rm -f confdir.s2; then
2289   gcc_cv_prog_ln_s_dir=yes
2290 else
2291   gcc_cv_prog_ln_s_dir=no
2292 fi
2293 rm -rf confdir.s1 confdir.s2])
2294
2295 case ${gcc_cv_prog_ln_s_dir} in
2296   yes)
2297     CREATE_LINK_TO_DIR='ln -s $$1 $$2'
2298     UNDO_LINK_TO_DIR='rm -f $$1' ;;
2299   *)
2300     CREATE_LINK_TO_DIR='mv $$1 $$2'
2301     UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
2302 esac
2303 AC_SUBST(CREATE_LINK_TO_DIR)
2304 AC_SUBST(UNDO_LINK_TO_DIR)
2305
2306 # Enable -Werror in bootstrap stage2 and later.
2307 # Change the default to "no" on release branches.
2308 AC_ARG_ENABLE(werror,
2309 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2310 [enable_werror=yes])
2311 case ${enable_werror} in
2312   yes) stage2_werror_flag="--enable-werror-always" ;;
2313   *) stage2_werror_flag="" ;;
2314 esac
2315 AC_SUBST(stage2_werror_flag)
2316
2317 AC_OUTPUT(Makefile)