configure.in

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   2 #   1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
   3 #
   4 # This file is free software; you can redistribute it and/or modify it
   5 # under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful, but
  10 # WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17
  18 ##############################################################################
  19 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
  20
  21 sinclude(config/acx.m4)
  22
  23 AC_INIT(move-if-change)
  24 AC_PREREQ(2.13)
  25 AC_CANONICAL_SYSTEM
  26 AC_ARG_PROGRAM
  27
  28 # Get 'install' or 'install-sh' and its variants.
  29 AC_PROG_INSTALL
  30 ACX_PROG_LN
  31 AC_PROG_LN_S
  32
  33 ### we might need to use some other shell than /bin/sh for running subshells
  34 ### If we are on Windows, search for the shell.  This will permit people
  35 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  36 ### without also having to set CONFIG_SHELL.  This code will work when
  37 ### using bash, which sets OSTYPE.
  38 case "${OSTYPE}" in
  39 *win32*)
  40   if test x${CONFIG_SHELL} = x ; then
  41     if test ! -f /bin/sh ; then
  42       if test x${SHELL} != x && test -f ${SHELL} ; then
  43         CONFIG_SHELL=${SHELL}
  44         export CONFIG_SHELL
  45       else
  46         for prog in sh sh.exe bash bash.exe; do
  47           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
  48           for dir in $PATH; do
  49             test -z "$dir" && dir=.
  50             if test -f $dir/$prog; then
  51               CONFIG_SHELL=$dir/$prog
  52               export CONFIG_SHELL
  53               break
  54             fi
  55           done
  56           IFS="$save_ifs"
  57           test -n "${CONFIG_SHELL}" && break
  58         done
  59       fi
  60     fi
  61   fi
  62   ;;
  63 esac
  64
  65 config_shell=${CONFIG_SHELL-/bin/sh}
  66
  67 progname=$0
  68 # if PWD already has a value, it is probably wrong.
  69 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  70
  71 # Export original configure arguments for use by sub-configures.  These
  72 # will be expanded by make, so quote '$'.
  73 tmp="$progname $@"
  74 sed -e 's,\$,$$,g' <<EOF_SED > conftestsed.out
  75 $tmp
  76 EOF_SED
  77 TOPLEVEL_CONFIGURE_ARGUMENTS=`cat conftestsed.out`
  78 rm -f conftestsed.out
  79 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
  80
  81 moveifchange=${srcdir}/move-if-change
  82
  83 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-libgfortran \
 151                 ${libgcj} \
 152                 target-libobjc \
 153                 target-libada"
 154
 155 # these tools are built using the target libraries, and are intended to
 156 # run only in the target environment
 157 #
 158 # note: any program that *uses* libraries that are in the "target_libraries"
 159 # list belongs in this list.  those programs are also very likely
 160 # candidates for the "native_only" list which follows
 161 #
 162 target_tools="target-examples target-groff target-gperf target-rda"
 163
 164 ################################################################################
 165
 166 ## All tools belong in one of the four categories, and are assigned above
 167 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 168 ## is important because configure will choke if they ever get through.
 169 ## ${configdirs} is directories we build using the host tools.
 170 ## ${target_configdirs} is directories we build using the target tools.
 171 configdirs=`echo ${host_libs} ${host_tools}`
 172 target_configdirs=`echo ${target_libraries} ${target_tools}`
 173 build_configdirs=`echo ${build_libs} ${build_tools}`
 174
 175 ################################################################################
 176
 177 srcname="gnu development package"
 178
 179 # This gets set non-empty for some net releases of packages.
 180 appdirs=""
 181
 182 # Define is_cross_compiler to save on calls to 'test'.
 183 is_cross_compiler=
 184 if test x"${host}" = x"${target}" ; then
 185   is_cross_compiler=no
 186 else
 187   is_cross_compiler=yes
 188 fi
 189
 190 # Find the build and target subdir names.
 191 GCC_TOPLEV_SUBDIRS
 192
 193 # Skipdirs are removed silently.
 194 skipdirs=
 195 # Noconfigdirs are removed loudly.
 196 noconfigdirs=""
 197
 198 use_gnu_ld=
 199 # Make sure we don't let GNU ld be added if we didn't want it.
 200 if test x$with_gnu_ld = xno ; then
 201   use_gnu_ld=no
 202   noconfigdirs="$noconfigdirs ld"
 203 fi
 204
 205 use_gnu_as=
 206 # Make sure we don't let GNU as be added if we didn't want it.
 207 if test x$with_gnu_as = xno ; then
 208   use_gnu_as=no
 209   noconfigdirs="$noconfigdirs gas"
 210 fi
 211
 212 # some tools are so dependent upon X11 that if we're not building with X,
 213 # it's not even worth trying to configure, much less build, that tool.
 214
 215 case ${with_x} in
 216   yes | "") ;; # the default value for this tree is that X11 is available
 217   no)
 218     skipdirs="${skipdirs} tk itcl libgui"
 219     # We won't be able to build gdbtk without X.
 220     enable_gdbtk=no
 221     ;;
 222   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 223 esac
 224
 225 # Some tools are only suitable for building in a "native" situation.
 226 # Remove these if host!=target.
 227 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"
 228
 229 # Similarly, some are only suitable for cross toolchains.
 230 # Remove these if host=target.
 231 cross_only="target-libgloss target-newlib target-opcodes"
 232
 233 case $is_cross_compiler in
 234   no) skipdirs="${skipdirs} ${cross_only}" ;;
 235   yes) skipdirs="${skipdirs} ${native_only}" ;;
 236 esac
 237
 238 # If both --with-headers and --with-libs are specified, default to
 239 # --without-newlib.
 240 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 241    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 242   if test x"${with_newlib}" = x ; then
 243     with_newlib=no
 244   fi
 245 fi
 246
 247 # Recognize --with-newlib/--without-newlib.
 248 case ${with_newlib} in
 249   no) skipdirs="${skipdirs} target-newlib" ;;
 250   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 251 esac
 252
 253 # Configure extra directories which are host specific
 254
 255 case "${host}" in
 256   *-cygwin*)
 257     configdirs="$configdirs libtermcap" ;;
 258 esac
 259
 260 # A target can indicate whether a language isn't supported for some reason.
 261 # Only spaces may be used in this macro; not newlines or tabs.
 262 unsupported_languages=
 263
 264 # Remove more programs from consideration, based on the host or
 265 # target this usually means that a port of the program doesn't
 266 # exist yet.
 267
 268 case "${host}" in
 269   hppa*64*-*-*)
 270     noconfigdirs="$noconfigdirs byacc"
 271     ;;
 272   i[[3456789]]86-*-vsta)
 273     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 274     ;;
 275   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 276     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 277     ;;
 278   i[[3456789]]86-*-mingw32*)
 279     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 280     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 281     ;;
 282   i[[3456789]]86-*-beos*)
 283     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 284     ;;
 285   *-*-cygwin*)
 286     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 287     ;;
 288   *-*-netbsd*)
 289     noconfigdirs="$noconfigdirs rcs"
 290     ;;
 291   ppc*-*-pe)
 292     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 293     ;;
 294   powerpc-*-beos*)
 295     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 296     ;;
 297 esac
 298
 299
 300 AC_ARG_ENABLE(libada,
 301 [  --enable-libada        Builds libada directory],
 302 ENABLE_LIBADA=$enableval,
 303 ENABLE_LIBADA=yes)
 304 if test "${ENABLE_LIBADA}" != "yes" ; then
 305   noconfigdirs="$noconfigdirs target-libada"
 306   noconfigdirs="$noconfigdirs gnattools"
 307 fi
 308
 309 # Save it here so that, even in case of --enable-libgcj, if the Java
 310 # front-end isn't enabled, we still get libgcj disabled.
 311 libgcj_saved=$libgcj
 312 case $enable_libgcj in
 313 yes)
 314   # If we reset it here, it won't get added to noconfigdirs in the
 315   # target-specific build rules, so it will be forcibly enabled
 316   # (unless the Java language itself isn't enabled).
 317   libgcj=
 318   ;;
 319 no)
 320   # Make sure we get it printed in the list of not supported target libs.
 321   noconfigdirs="$noconfigdirs ${libgcj}"
 322   ;;
 323 esac
 324
 325
 326 # Allow --disable-libmudflap to exclude target-libmudflap
 327 case $enable_libmudflap in
 328 yes)
 329     ;;
 330 no)
 331     noconfigdirs="$noconfigdirs target-libmudflap"
 332     ;;
 333 "")
 334     case "${target}" in
 335     *-*-linux*-gnu | *-*-gnu* | *-*-k*bsd*-gnu)
 336         # Enable libmudflap by default in GNU and friends.
 337         ;;
 338     *-*-freebsd*)
 339         # Enable libmudflap by default in FreeBSD.
 340         ;;
 341     *)
 342         # Disable it by default everywhere else.
 343         noconfigdirs="$noconfigdirs target-libmudflap"
 344         ;;
 345     esac
 346 esac
 347
 348
 349 case "${target}" in
 350   *-*-chorusos)
 351     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 352     ;;
 353   powerpc-*-darwin*)
 354     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 355     ;;
 356   *-*-darwin*)
 357     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 358     noconfigdirs="$noconfigdirs ${libgcj}"
 359     ;;
 360   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 361     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 362     ;;
 363   *-*-freebsd*)
 364     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 365     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 366         && test -f /usr/local/include/gmp.h; then
 367       with_gmp=/usr/local
 368     fi
 369
 370     # Skip some stuff that's unsupported on some FreeBSD configurations.
 371     case "${target}" in
 372       i*86-*-*) ;;
 373       alpha*-*-*) ;;
 374       *)
 375         noconfigdirs="$noconfigdirs ${libgcj}"
 376         ;;
 377     esac
 378     ;;
 379   *-*-kaos*)
 380     # Remove unsupported stuff on all kaOS configurations.
 381     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 382     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 383     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 384     noconfigdirs="$noconfigdirs target-libgloss"
 385     ;;
 386   *-*-netbsd*)
 387     # Skip some stuff on all NetBSD configurations.
 388     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 389
 390     # Skip some stuff that's unsupported on some NetBSD configurations.
 391     case "${target}" in
 392       i*86-*-netbsdelf*) ;;
 393       arm*-*-netbsdelf*) ;;
 394       *)
 395         noconfigdirs="$noconfigdirs ${libgcj}"
 396         ;;
 397     esac
 398     ;;
 399   *-*-netware*)
 400     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 401     ;;
 402   *-*-rtems*)
 403     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 404     ;;
 405   *-*-uclinux*)
 406     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 407     ;;
 408   *-*-vxworks*)
 409     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj}"
 410     ;;
 411   alpha*-dec-osf*)
 412     # ld works, but does not support shared libraries.
 413     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 414     # gas doesn't generate exception information.
 415     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 416     ;;
 417   alpha*-*-*vms*)
 418     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 419     ;;
 420   alpha*-*-linux*)
 421     # newlib is not 64 bit ready
 422     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 423     ;;
 424   alpha*-*-*)
 425     # newlib is not 64 bit ready
 426     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 427     ;;
 428   am33_2.0-*-linux*)
 429     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 430     ;;
 431   sh-*-linux*)
 432     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 433     ;;
 434   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 435     noconfigdirs="$noconfigdirs ${libgcj}"
 436     noconfigdirs="$noconfigdirs target-examples"
 437     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 438     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 439     noconfigdirs="$noconfigdirs expect dejagnu"
 440     # the C++ libraries don't build on top of CE's C libraries
 441     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 442     noconfigdirs="$noconfigdirs target-newlib"
 443     case "${host}" in
 444       *-*-cygwin*) ;; # keep gdb and readline
 445       *) noconfigdirs="$noconfigdirs gdb readline"
 446          ;;
 447     esac
 448     ;;
 449   arc-*-*)
 450     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 451     ;;
 452   arm-semi-aof )
 453     ;;
 454   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 455     noconfigdirs="$noconfigdirs ${libgcj}"
 456     ;;
 457   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 458     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 459     ;;
 460   arm*-*-symbianelf*)
 461     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 462     ;;
 463   arm-*-pe*)
 464     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 465     ;;
 466   thumb-*-coff)
 467     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 468     ;;
 469   thumb-*-elf)
 470     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 471     ;;
 472   thumb-*-pe)
 473     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 474     ;;
 475   arm-*-riscix*)
 476     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 477     ;;
 478   avr-*-*)
 479     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 480     ;;
 481   c4x-*-* | tic4x-*-*)
 482     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 483     ;;
 484   c54x*-*-* | tic54x-*-*)
 485     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 486     ;;
 487   cris-*-* | crisv32-*-*)
 488     unsupported_languages="$unsupported_languages java"
 489     case "${target}" in
 490       *-*-aout)
 491         unsupported_languages="$unsupported_languages f95"
 492         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 493       *-*-elf)
 494         unsupported_languages="$unsupported_languages f95"
 495         noconfigdirs="$noconfigdirs target-boehm-gc";;
 496       *-*-linux*)
 497         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 498       *)
 499         unsupported_languages="$unsupported_languages f95"
 500         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 501     esac
 502     ;;
 503   crx-*-*)
 504     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 505     ;;
 506   d10v-*-*)
 507     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 508     ;;
 509   d30v-*-*)
 510     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 511     ;;
 512   fr30-*-elf*)
 513     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 514     ;;
 515   frv-*-*)
 516     noconfigdirs="$noconfigdirs ${libgcj}"
 517     ;;
 518   h8300*-*-*)
 519     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 520     ;;
 521   h8500-*-*)
 522     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 523     ;;
 524   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 525     ;;
 526   hppa*64*-*-linux* | parisc*64*-*-linux*)
 527     # In this case, it's because the hppa64-linux target is for
 528     # the kernel only at this point and has no libc, and thus no
 529     # headers, crt*.o, etc., all of which are needed by these.
 530     noconfigdirs="$noconfigdirs target-zlib"
 531     ;;
 532   parisc*-*-linux* | hppa*-*-linux*)
 533     ;;
 534   hppa*-*-*elf* | \
 535   hppa*-*-lites* | \
 536   hppa*-*-openbsd* | \
 537   hppa*64*-*-*)
 538     noconfigdirs="$noconfigdirs ${libgcj}"
 539     ;;
 540   hppa*-*-*)
 541     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 542     # build on HP-UX 10.20.
 543     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 544     ;;
 545   i960-*-*)
 546     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 547     ;;
 548   ia64*-*-elf*)
 549     # No gdb support yet.
 550     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 551     ;;
 552   ia64*-**-hpux*)
 553     # No gdb or ld support yet.
 554     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 555     ;;
 556   i370-*-opened*)
 557     ;;
 558   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 559     noconfigdirs="$noconfigdirs ${libgcj}"
 560     ;;
 561   i[[3456789]]86-*-linux*)
 562     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 563     # not build java stuff by default.
 564     case "${target}" in
 565       *-*-*libc1*)
 566         noconfigdirs="$noconfigdirs ${libgcj}";;
 567     esac
 568
 569     # This section makes it possible to build newlib natively on linux.
 570     # If we are using a cross compiler then don't configure newlib.
 571     if test x${is_cross_compiler} != xno ; then
 572       noconfigdirs="$noconfigdirs target-newlib"
 573     fi
 574     noconfigdirs="$noconfigdirs target-libgloss"
 575     # If we are not using a cross compiler, do configure newlib.
 576     # Note however, that newlib will only be configured in this situation
 577     # if the --with-newlib option has been given, because otherwise
 578     # 'target-newlib' will appear in skipdirs.
 579     ;;
 580   i[[3456789]]86-*-mingw32*)
 581     target_configdirs="$target_configdirs target-mingw"
 582     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 583
 584     # Can't build gdb for mingw32 if not native.
 585     case "${host}" in
 586       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 587       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 588          ;;
 589     esac
 590     ;;
 591   *-*-cygwin*)
 592     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 593     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 594     # always build newlib if winsup directory is present.
 595     if test -d "$srcdir/winsup"; then
 596       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 597     elif test -d "$srcdir/newlib"; then
 598       echo "Warning: winsup is missing so newlib can't be built."
 599     fi
 600
 601     # Can't build gdb for Cygwin if not native.
 602     case "${host}" in
 603       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 604       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 605          ;;
 606     esac
 607     ;;
 608   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 609   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 610     ;;
 611   i[[3456789]]86-*-pe)
 612     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 613     ;;
 614   i[[3456789]]86-*-sco3.2v5*)
 615     # The linker does not yet know about weak symbols in COFF,
 616     # and is not configured to handle mixed ELF and COFF.
 617     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 618     ;;
 619   i[[3456789]]86-*-sco*)
 620     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 621     ;;
 622   i[[3456789]]86-*-solaris2*)
 623     noconfigdirs="$noconfigdirs target-libgloss"
 624     ;;
 625   i[[3456789]]86-*-sysv4*)
 626     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 627     ;;
 628   i[[3456789]]86-*-beos*)
 629     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 630     ;;
 631   m32r-*-*)
 632     noconfigdirs="$noconfigdirs ${libgcj}"
 633     ;;
 634   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 635     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 636     ;;
 637   m68k-*-elf*)
 638     noconfigdirs="$noconfigdirs ${libgcj}"
 639     ;;
 640   m68k-*-coff*)
 641     noconfigdirs="$noconfigdirs ${libgcj}"
 642     ;;
 643   mcore-*-pe*)
 644   # The EPOC C++ environment does not support exceptions or rtti,
 645   # and so building libstdc++-v3 tends not to always work.
 646     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 647     ;;
 648   mmix-*-*)
 649     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 650     unsupported_languages="$unsupported_languages f95 java"
 651     ;;
 652   mn10200-*-*)
 653     noconfigdirs="$noconfigdirs ${libgcj}"
 654     ;;
 655   mn10300-*-*)
 656     noconfigdirs="$noconfigdirs ${libgcj}"
 657     ;;
 658   ms1-*-*)
 659     noconfigdirs="$noconfigdirs sim"
 660     ;;
 661   powerpc-*-aix*)
 662     # copied from rs6000-*-* entry
 663     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 664     ;;
 665   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 666     target_configdirs="$target_configdirs target-winsup"
 667     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 668     # always build newlib.
 669     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 670     ;;
 671     # This is temporary until we can link against shared libraries
 672   powerpcle-*-solaris*)
 673     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 674     ;;
 675   powerpc-*-beos*)
 676     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 677     ;;
 678   powerpc-*-eabi)
 679     noconfigdirs="$noconfigdirs ${libgcj}"
 680     ;;
 681   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 682     ;;
 683   rs6000-*-lynxos*)
 684     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 685     ;;
 686   rs6000-*-aix*)
 687     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 688     ;;
 689   rs6000-*-*)
 690     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 691     ;;
 692   m68k-apollo-*)
 693     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 694     ;;
 695   mips*-*-irix5*)
 696     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 697     ;;
 698   mips*-*-irix6*)
 699     # Linking libjava exceeds command-line length limits on at least
 700     # IRIX 6.2, but not on IRIX 6.5.
 701     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 702     # <oldham@codesourcery.com>
 703     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 704     ;;
 705   mips*-dec-bsd*)
 706     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 707     ;;
 708   mips*-*-bsd*)
 709     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 710     ;;
 711   mipstx39-*-*)
 712     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 713     ;;
 714   mips64*-*-linux*)
 715     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 716     ;;
 717   mips*-*-linux*)
 718     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 719     ;;
 720   mips*-*-*)
 721     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 722     ;;
 723   romp-*-*)
 724     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 725     ;;
 726   sh-*-* | sh64-*-*)
 727     case "${host}" in
 728       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 729       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 730       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 731       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 732     esac
 733     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 734     ;;
 735   sparc-*-elf*)
 736     noconfigdirs="$noconfigdirs ${libgcj}"
 737     ;;
 738   sparc64-*-elf*)
 739     noconfigdirs="$noconfigdirs ${libgcj}"
 740     ;;
 741   sparclite-*-*)
 742     noconfigdirs="$noconfigdirs ${libgcj}"
 743     ;;
 744   sparc-*-sunos4*)
 745     noconfigdirs="$noconfigdirs ${libgcj}"
 746     if test x${is_cross_compiler} != xno ; then
 747            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 748     else
 749            use_gnu_ld=no
 750     fi
 751     ;;
 752   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 753     noconfigdirs="$noconfigdirs ${libgcj}"
 754     ;;
 755   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 756     ;;
 757   v810-*-*)
 758     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 759     ;;
 760   v850-*-*)
 761     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 762     ;;
 763   v850e-*-*)
 764     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 765     ;;
 766   v850ea-*-*)
 767     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 768     ;;
 769   vax-*-vms)
 770     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 771     ;;
 772   vax-*-*)
 773     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 774     ;;
 775   xtensa-*-*)
 776     noconfigdirs="$noconfigdirs ${libgcj}"
 777     ;;
 778   ip2k-*-*)
 779     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 780     ;;
 781   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 782     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 783     ;;
 784   *-*-lynxos*)
 785     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 786     ;;
 787   *-*-*)
 788     noconfigdirs="$noconfigdirs ${libgcj}"
 789     ;;
 790 esac
 791
 792 # If we aren't building newlib, then don't build libgloss, since libgloss
 793 # depends upon some newlib header files.
 794 case "${noconfigdirs}" in
 795   *target-libgloss*) ;;
 796   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 797 esac
 798
 799 # Work in distributions that contain no compiler tools, like Autoconf.
 800 tentative_cc=""
 801 host_makefile_frag=/dev/null
 802 if test -d ${srcdir}/config ; then
 803 case "${host}" in
 804   m68k-hp-hpux*)
 805     # Avoid "too much defining" errors from HPUX compiler.
 806     tentative_cc="cc -Wp,-H256000"
 807     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 808     # If it's HP/UX ar, this should be harmless.
 809     RANLIB="ar ts"
 810     ;;
 811   m68k-apollo-sysv*)
 812     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 813     ;;
 814   m68k-apollo-bsd*)
 815     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 816     # chokes on bfd, the compiler won't let you assign integers to enums, and
 817     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 818     # the apollo compiler" (the preferred version of GCC could be called cc,
 819     # or whatever), but I'm not sure leaving CC as cc is any better...
 820     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 821     # Used to have BISON=yacc.
 822     tentative_cc=gcc
 823     ;;
 824   m88k-dg-dgux*)
 825     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 826     ;;
 827   m88k-harris-cxux*)
 828     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 829     tentative_cc="cc -Xa"
 830     host_makefile_frag="config/mh-cxux"
 831     ;;
 832   m88k-motorola-sysv*)
 833     ;;
 834   mips*-dec-ultrix*)
 835     tentative_cc="cc -Wf,-XNg1000"
 836     host_makefile_frag="config/mh-decstation"
 837     ;;
 838   mips*-nec-sysv4*)
 839     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 840     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 841     host_makefile_frag="config/mh-necv4"
 842     ;;
 843   mips*-sgi-irix4*)
 844     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 845     # environment.  Also bump switch table size so that cp-parse will
 846     # compile.  Bump string length limit so linker builds.
 847     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 848     ;;
 849   mips*-*-sysv4*)
 850     host_makefile_frag="config/mh-sysv4"
 851     ;;
 852   mips*-*-sysv*)
 853     # This is for a MIPS running RISC/os 4.52C.
 854
 855     # This is needed for GDB, but needs to be in the top-level make because
 856     # if a library is compiled with the bsd headers and gets linked with the
 857     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 858     # a different size).
 859     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 860     # known except to select the sysv environment.  Could we use /proc instead?
 861     # These "sysv environments" and "bsd environments" often end up being a pain.
 862     #
 863     # This is not part of CFLAGS because perhaps not all C compilers have this
 864     # option.
 865     tentative_cc="cc -systype sysv"
 866     ;;
 867   i370-ibm-opened*)
 868     tentative_cc="c89"
 869     ;;
 870   i[[3456789]]86-*-sysv5*)
 871     host_makefile_frag="config/mh-sysv5"
 872     ;;
 873   i[[3456789]]86-*-dgux*)
 874     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 875     host_makefile_frag="config/mh-dgux386"
 876     ;;
 877   i[[3456789]]86-ncr-sysv4.3*)
 878     # The MetaWare compiler will generate a copyright message unless you
 879     # turn it off by adding the -Hnocopyr flag.
 880     tentative_cc="cc -Hnocopyr"
 881     ;;
 882   i[[3456789]]86-ncr-sysv4*)
 883     # for an NCR 3000 (i486/SVR4) system.
 884     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 885     # This compiler not only emits obnoxious copyright messages every time
 886     # you run it, but it chokes and dies on a whole bunch of GNU source
 887     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 888     tentative_cc="/usr/ccs/ATT/cc"
 889     host_makefile_frag="config/mh-ncr3000"
 890     ;;
 891   i[[3456789]]86-*-sco3.2v5*)
 892     ;;
 893   i[[3456789]]86-*-sco*)
 894     # The native C compiler botches some simple uses of const.  Unfortunately,
 895     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 896     tentative_cc="cc -Dconst="
 897     host_makefile_frag="config/mh-sco"
 898     ;;
 899   i[[3456789]]86-*-udk*)
 900     host_makefile_frag="config/mh-sysv5"
 901     ;;
 902   i[[3456789]]86-*-solaris2*)
 903     host_makefile_frag="config/mh-sysv4"
 904     ;;
 905   i[[3456789]]86-*-msdosdjgpp*)
 906     host_makefile_frag="config/mh-djgpp"
 907     ;;
 908   *-cygwin*)
 909     host_makefile_frag="config/mh-cygwin"
 910     ;;
 911   *-mingw32*)
 912     ;;
 913   *-interix*)
 914     host_makefile_frag="config/mh-interix"
 915     ;;
 916   vax-*-ultrix2*)
 917     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 918     tentative_cc=gcc
 919     ;;
 920   *-*-solaris2*)
 921     host_makefile_frag="config/mh-solaris"
 922     ;;
 923   m68k-sun-sunos*)
 924     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 925     # without overflowing the jump tables (-J says to use a 32 bit table)
 926     tentative_cc="cc -J"
 927     ;;
 928   *-hp-hpux*)
 929     tentative_cc="cc -Wp,-H256000"
 930     ;;
 931   *-*-hiux*)
 932     tentative_cc="cc -Wp,-H256000"
 933     ;;
 934   rs6000-*-lynxos*)
 935     # /bin/cc is less than useful for our purposes.  Always use GCC
 936     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 937     host_makefile_frag="config/mh-lynxrs6k"
 938     ;;
 939   powerpc-*-darwin*)
 940     host_makefile_frag="config/mh-ppc-darwin"
 941     ;;
 942   *-*-lynxos*)
 943     # /bin/cc is less than useful for our purposes.  Always use GCC
 944     tentative_cc="/bin/gcc"
 945     ;;
 946   *-*-sysv4*)
 947     host_makefile_frag="config/mh-sysv4"
 948     ;;
 949   # This is placed last to prevent interfering with the cases above.
 950   i[[3456789]]86-*-*)
 951     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 952     host_makefile_frag="config/mh-x86omitfp"
 953     ;;
 954 esac
 955 fi
 956
 957 # If we aren't going to be using gcc, see if we can extract a definition
 958 # of CC from the fragment.
 959 # Actually, use the 'pre-extracted' version above.
 960 if test -z "${CC}" && test "${build}" = "${host}" ; then
 961   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 962   found=
 963   for dir in $PATH; do
 964     test -z "$dir" && dir=.
 965     if test -f $dir/gcc; then
 966       found=yes
 967       break
 968     fi
 969   done
 970   IFS="$save_ifs"
 971   if test -z "${found}" && test -n "${tentative_cc}" ; then
 972     CC=$tentative_cc
 973   fi
 974 fi
 975
 976 if test "${build}" != "${host}" ; then
 977   # If we are doing a Canadian Cross, in which the host and build systems
 978   # are not the same, we set reasonable default values for the tools.
 979
 980   CC=${CC-${host_alias}-gcc}
 981   CFLAGS=${CFLAGS-"-g -O2"}
 982   CXX=${CXX-${host_alias}-c++}
 983   CXXFLAGS=${CXXFLAGS-"-g -O2"}
 984   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
 985   CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc}
 986   CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++}
 987   GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj}
 988   GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}}
 989   BUILD_PREFIX=${build_alias}-
 990   BUILD_PREFIX_1=${build_alias}-
 991
 992 else
 993   # Set reasonable default values for some tools even if not Canadian.
 994   # Of course, these are different reasonable default values, originally
 995   # specified directly in the Makefile.
 996   # We don't export, so that autoconf can do its job.
 997   # Note that all these settings are above the fragment inclusion point
 998   # in Makefile.in, so can still be overridden by fragments.
 999   # This is all going to change when we autoconfiscate...
1000
1001   CC_FOR_BUILD="\$(CC)"
1002   GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
1003   BUILD_PREFIX=
1004   BUILD_PREFIX_1=loser-
1005
1006   AC_PROG_CC
1007
1008   # We must set the default linker to the linker used by gcc for the correct
1009   # operation of libtool.  If LD is not defined and we are using gcc, try to
1010   # set the LD default to the ld used by gcc.
1011   if test -z "$LD"; then
1012     if test "$GCC" = yes; then
1013       case $build in
1014       *-*-mingw*)
1015         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1016       *)
1017         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1018       esac
1019       case $gcc_prog_ld in
1020       # Accept absolute paths.
1021       [[\\/]* | [A-Za-z]:[\\/]*)]
1022         LD="$gcc_prog_ld" ;;
1023       esac
1024     fi
1025   fi
1026
1027   CXX=${CXX-"c++"}
1028   CFLAGS=${CFLAGS-"-g"}
1029   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1030 fi
1031
1032 ACX_PROG_GNAT
1033 ACX_PROG_CMP_IGNORE_INITIAL
1034
1035 # Check for GMP and MPFR
1036 gmplibs=
1037 gmpinc=
1038 have_gmp=yes
1039 # Specify a location for mpfr
1040 # check for this first so it ends up on the link line before gmp.
1041 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1042
1043 if test "x$with_mpfr_dir" != x; then
1044   gmpinc="-I$with_mpfr_dir"
1045   gmplibs="$with_mpfr_dir/libmpfr.a"
1046 else
1047   gmplibs="-lmpfr"
1048 fi
1049
1050 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1051
1052 if test "x$with_mpfr" != x; then
1053   gmplibs="-L$with_mpfr/lib $gmplibs"
1054   gmpinc="-I$with_mpfr/include"
1055 fi
1056
1057 # Specify a location for gmp
1058 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1059
1060 if test "x$with_gmp_dir" != x; then
1061   gmpinc="$gmpinc -I$with_gmp_dir"
1062   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1063     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1064   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1065     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1066   fi
1067   # One of the later tests will catch the error if neither library is present.
1068 else
1069   gmplibs="$gmplibs -lgmp"
1070 fi
1071
1072 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1073
1074 if test "x$with_gmp" != x; then
1075   gmplibs="-L$with_gmp/lib $gmplibs"
1076   gmpinc="-I$with_gmp/include $gmpinc"
1077 fi
1078
1079 saved_CFLAGS="$CFLAGS"
1080 CFLAGS="$CFLAGS $gmpinc"
1081 # Check GMP actually works
1082 AC_MSG_CHECKING([for correct version of gmp.h])
1083 AC_TRY_COMPILE([#include "gmp.h"],[
1084 #if __GNU_MP_VERSION < 3
1085 choke me
1086 #endif
1087 ], [AC_MSG_RESULT([yes])],
1088   [AC_MSG_RESULT([no]); have_gmp=no])
1089
1090 if test x"$have_gmp" = xyes; then
1091   AC_MSG_CHECKING([for MPFR])
1092
1093   saved_LIBS="$LIBS"
1094   LIBS="$LIBS $gmplibs"
1095   AC_TRY_LINK([#include <gmp.h>
1096 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1097     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1098   LIBS="$saved_LIBS"
1099   CFLAGS="$saved_CFLAGS"
1100 fi
1101
1102 # Flags needed for both GMP and/or MPFR
1103 AC_SUBST(gmplibs)
1104 AC_SUBST(gmpinc)
1105
1106 # By default, C is the only stage 1 language.
1107 stage1_languages=c
1108 AC_SUBST(stage1_languages)
1109
1110 # Figure out what language subdirectories are present.
1111 # Look if the user specified --enable-languages="..."; if not, use
1112 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1113 # go away some day.
1114 # NB:  embedded tabs in this IF block -- do not untabify
1115 if test -d ${srcdir}/gcc; then
1116   if test x"${enable_languages+set}" != xset; then
1117     if test x"${LANGUAGES+set}" = xset; then
1118       enable_languages="${LANGUAGES}"
1119         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1120     else
1121       enable_languages=all
1122     fi
1123   else
1124     if test x"${enable_languages}" = x ||
1125        test x"${enable_languages}" = xyes;
1126        then
1127       echo configure.in: --enable-languages needs at least one language argument 1>&2
1128       exit 1
1129     fi
1130   fi
1131   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1132
1133   # First scan to see if an enabled language requires some other language.
1134   # We assume that a given config-lang.in will list all the language
1135   # front ends it requires, even if some are required indirectly.
1136   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1137     case ${lang_frag} in
1138       ..) ;;
1139       # The odd quoting in the next line works around
1140       # an apparent bug in bash 1.12 on linux.
1141       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1142       *)
1143         # From the config-lang.in, get $language, $lang_requires
1144         language=
1145         lang_requires=
1146         . ${lang_frag}
1147         for other in ${lang_requires} ; do
1148           case ,${enable_languages}, in
1149             *,$other,*) ;;
1150             *,all,*) ;;
1151             *,$language,*)
1152               echo " \`$other' language required by \`$language'; enabling" 1>&2
1153               enable_languages="${enable_languages},${other}"
1154               ;;
1155           esac
1156         done
1157         ;;
1158     esac
1159   done
1160
1161   new_enable_languages=c
1162   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1163   potential_languages=c
1164
1165   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1166     case ${lang_frag} in
1167       ..) ;;
1168       # The odd quoting in the next line works around
1169       # an apparent bug in bash 1.12 on linux.
1170       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1171       *)
1172         # From the config-lang.in, get $language, $target_libs,
1173         # $lang_dirs, $boot_language, and $build_by_default
1174         language=
1175         target_libs=
1176         lang_dirs=
1177         boot_language=
1178         build_by_default=
1179         need_gmp=
1180         . ${lang_frag}
1181         potential_languages="${potential_languages},${language}"
1182         # This is quite sensitive to the ordering of the case statement arms.
1183         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1184           *::*:*)
1185             echo "${lang_frag} doesn't set \$language." 1>&2
1186             exit 1
1187             ;;
1188           *:ada:no:*)
1189             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1190             add_this_lang=no
1191             ;;
1192           *,${language},*:*:*:*)
1193             # Language was explicitly selected; include it.
1194             add_this_lang=yes
1195             ;;
1196           *,all,*:*:*:no)
1197             # 'all' was selected, but this is not a default language
1198             # so do not include it.
1199             add_this_lang=no
1200             ;;
1201           *,all,*:*:*:*)
1202             # 'all' was selected and this is a default language; include it.
1203             add_this_lang=yes
1204             ;;
1205           *)
1206             add_this_lang=no
1207             ;;
1208         esac
1209
1210         # Disable languages that need GMP if it isn't available.
1211         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1212           *,${language},*:no:yes)
1213             # Specifically requested language; tell them.
1214             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1215             ;;
1216           *:no:yes)
1217             # Silently disable.
1218             add_this_lang=no
1219             ;;
1220         esac
1221
1222         # Disable a language that is unsupported by the target.
1223         case " $unsupported_languages " in
1224           *" $language "*)
1225             add_this_lang=no
1226             ;;
1227         esac
1228
1229         case $add_this_lang in
1230           no)
1231             # Remove language-dependent dirs.
1232             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1233             ;;
1234           *)
1235             new_enable_languages="$new_enable_languages,$language"
1236             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1237             case ${boot_language} in
1238               yes)
1239                 # Add to (comma-separated) list of stage 1 languages.
1240                 stage1_languages="${stage1_languages},${language}"
1241                 ;;
1242             esac
1243             ;;
1244         esac
1245         ;;
1246     esac
1247   done
1248
1249   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1250   if test "x$missing_languages" != x; then
1251     AC_MSG_ERROR([
1252 The following requested languages could not be built: ${missing_languages}
1253 Recognised languages are: ${potential_languages}])
1254   fi
1255
1256   if test "x$new_enable_languages" != "x$enable_languages"; then
1257     echo The following languages will be built: ${new_enable_languages}
1258   fi
1259   enable_languages="$new_enable_languages"
1260   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1261 fi
1262
1263 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1264 # $build_configdirs and $target_configdirs.
1265 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1266
1267 notsupp=""
1268 for dir in . $skipdirs $noconfigdirs ; do
1269   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1270   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1271     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1272     if test -r $srcdir/$dirname/configure ; then
1273       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1274         true
1275       else
1276         notsupp="$notsupp $dir"
1277       fi
1278     fi
1279   fi
1280   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1281     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1282     if test -r $srcdir/$dirname/configure ; then
1283       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1284         true
1285       else
1286         notsupp="$notsupp $dir"
1287       fi
1288     fi
1289   fi
1290   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1291     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1292     if test -r $srcdir/$dirname/configure ; then
1293       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1294         true
1295       else
1296         notsupp="$notsupp $dir"
1297       fi
1298     fi
1299   fi
1300 done
1301
1302 # Sometimes the tools are distributed with libiberty but with no other
1303 # libraries.  In that case, we don't want to build target-libiberty.
1304 if test -n "${target_configdirs}" ; then
1305   others=
1306   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1307     if test "$i" != "libiberty" ; then
1308       if test -r $srcdir/$i/configure ; then
1309         others=yes;
1310         break;
1311       fi
1312     fi
1313   done
1314   if test -z "${others}" ; then
1315     target_configdirs=
1316   fi
1317 fi
1318
1319 # Quietly strip out all directories which aren't configurable in this tree.
1320 # This relies on all configurable subdirectories being autoconfiscated, which
1321 # is now the case.
1322 build_configdirs_all="$build_configdirs"
1323 build_configdirs=
1324 for i in ${build_configdirs_all} ; do
1325   j=`echo $i | sed -e s/build-//g`
1326   if test -f ${srcdir}/$j/configure ; then
1327     build_configdirs="${build_configdirs} $i"
1328   fi
1329 done
1330
1331 configdirs_all="$configdirs"
1332 configdirs=
1333 for i in ${configdirs_all} ; do
1334   if test -f ${srcdir}/$i/configure ; then
1335     configdirs="${configdirs} $i"
1336   fi
1337 done
1338
1339 target_configdirs_all="$target_configdirs"
1340 target_configdirs=
1341 for i in ${target_configdirs_all} ; do
1342   j=`echo $i | sed -e s/target-//g`
1343   if test -f ${srcdir}/$j/configure ; then
1344     target_configdirs="${target_configdirs} $i"
1345   fi
1346 done
1347
1348 # Produce a warning message for the subdirs we can't configure.
1349 # This isn't especially interesting in the Cygnus tree, but in the individual
1350 # FSF releases, it's important to let people know when their machine isn't
1351 # supported by the one or two programs in a package.
1352
1353 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1354   # If $appdirs is non-empty, at least one of those directories must still
1355   # be configured, or we error out.  (E.g., if the gas release supports a
1356   # specified target in some subdirs but not the gas subdir, we shouldn't
1357   # pretend that all is well.)
1358   if test -n "$appdirs" ; then
1359     for dir in $appdirs ; do
1360       if test -r $dir/Makefile.in ; then
1361         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1362           appdirs=""
1363           break
1364         fi
1365         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1366           appdirs=""
1367           break
1368         fi
1369       fi
1370     done
1371     if test -n "$appdirs" ; then
1372       echo "*** This configuration is not supported by this package." 1>&2
1373       exit 1
1374     fi
1375   fi
1376   # Okay, some application will build, or we don't care to check.  Still
1377   # notify of subdirs not getting built.
1378   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1379   echo "    ${notsupp}" 1>&2
1380   echo "    (Any other directories should still work fine.)" 1>&2
1381 fi
1382
1383 case "$host" in
1384   *msdosdjgpp*)
1385     enable_gdbtk=no ;;
1386 esac
1387
1388 copy_dirs=
1389
1390 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1391 # the named directory are copied to $(tooldir)/sys-include.
1392 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1393   if test x${is_cross_compiler} = xno ; then
1394     echo 1>&2 '***' --with-headers is only supported when cross compiling
1395     exit 1
1396   fi
1397   if test x"${with_headers}" != xyes ; then
1398     case "${exec_prefixoption}" in
1399     "") x=${prefix} ;;
1400     *) x=${exec_prefix} ;;
1401     esac
1402     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1403   fi
1404 fi
1405
1406 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1407 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1408 # are permitted.
1409 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1410   if test x${is_cross_compiler} = xno ; then
1411     echo 1>&2 '***' --with-libs is only supported when cross compiling
1412     exit 1
1413   fi
1414   if test x"${with_libs}" != xyes ; then
1415     # Copy the libraries in reverse order, so that files in the first named
1416     # library override files in subsequent libraries.
1417     case "${exec_prefixoption}" in
1418     "") x=${prefix} ;;
1419     *) x=${exec_prefix} ;;
1420     esac
1421     for l in ${with_libs}; do
1422       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1423     done
1424   fi
1425 fi
1426
1427 # Handle ${copy_dirs}
1428 set fnord ${copy_dirs}
1429 shift
1430 while test $# != 0 ; do
1431   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1432     :
1433   else
1434     echo Copying $1 to $2
1435
1436     # Use the install script to create the directory and all required
1437     # parent directories.
1438     if test -d $2 ; then
1439       :
1440     else
1441       echo >config.temp
1442       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1443     fi
1444
1445     # Copy the directory, assuming we have tar.
1446     # FIXME: Should we use B in the second tar?  Not all systems support it.
1447     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1448
1449     # It is the responsibility of the user to correctly adjust all
1450     # symlinks.  If somebody can figure out how to handle them correctly
1451     # here, feel free to add the code.
1452
1453     echo $1 > $2/COPIED
1454   fi
1455   shift; shift
1456 done
1457
1458 extra_arflags_for_target=
1459 extra_nmflags_for_target=
1460 extra_ranlibflags_for_target=
1461 target_makefile_frag=/dev/null
1462 case "${target}" in
1463   *-*-netware*)
1464     target_makefile_frag="config/mt-netware"
1465     ;;
1466   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1467     target_makefile_frag="config/mt-gnu"
1468     ;;
1469   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1470     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1471     # commands to handle both 32-bit and 64-bit objects.  These flags are
1472     # harmless if we're using GNU nm or ar.
1473     extra_arflags_for_target=" -X32_64"
1474     extra_nmflags_for_target=" -B -X32_64"
1475     ;;
1476   *-*-darwin*)
1477     # ranlib from Darwin requires the -c flag to look at common symbols.
1478     extra_ranlibflags_for_target=" -c"
1479     ;;
1480   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1481     target_makefile_frag="config/mt-wince"
1482     ;;
1483 esac
1484
1485 alphaieee_frag=/dev/null
1486 case $target in
1487   alpha*-*-*)
1488     # This just makes sure to use the -mieee option to build target libs.
1489     # This should probably be set individually by each library.
1490     alphaieee_frag="config/mt-alphaieee"
1491     ;;
1492 esac
1493
1494 # If --enable-target-optspace always use -Os instead of -O2 to build
1495 # the target libraries, similarly if it is not specified, use -Os
1496 # on selected platforms.
1497 ospace_frag=/dev/null
1498 case "${enable_target_optspace}:${target}" in
1499   yes:*)
1500     ospace_frag="config/mt-ospace"
1501     ;;
1502   :d30v-*)
1503     ospace_frag="config/mt-d30v"
1504     ;;
1505   :m32r-* | :d10v-* | :fr30-*)
1506     ospace_frag="config/mt-ospace"
1507     ;;
1508   no:* | :*)
1509     ;;
1510   *)
1511     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1512     ;;
1513 esac
1514
1515 # Set with_gnu_as and with_gnu_ld as appropriate.
1516 #
1517 # This is done by determining whether or not the appropriate directory
1518 # is available, and by checking whether or not specific configurations
1519 # have requested that this magic not happen.
1520 #
1521 # The command line options always override the explicit settings in
1522 # configure.in, and the settings in configure.in override this magic.
1523 #
1524 # If the default for a toolchain is to use GNU as and ld, and you don't
1525 # want to do that, then you should use the --without-gnu-as and
1526 # --without-gnu-ld options for the configure script.
1527
1528 if test x${use_gnu_as} = x &&
1529    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1530   with_gnu_as=yes
1531   extra_host_args="$extra_host_args --with-gnu-as"
1532 fi
1533
1534 if test x${use_gnu_ld} = x &&
1535    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1536   with_gnu_ld=yes
1537   extra_host_args="$extra_host_args --with-gnu-ld"
1538 fi
1539
1540 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1541 # can detect this case.
1542
1543 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1544   with_newlib=yes
1545   extra_host_args="$extra_host_args --with-newlib"
1546 fi
1547
1548 # Default to using --with-stabs for certain targets.
1549 if test x${with_stabs} = x ; then
1550   case "${target}" in
1551   mips*-*-irix[[56]]*)
1552     ;;
1553   mips*-*-* | alpha*-*-osf*)
1554     with_stabs=yes;
1555     extra_host_args="${extra_host_args} --with-stabs"
1556     ;;
1557   esac
1558 fi
1559
1560 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1561 # them automatically.
1562 case "${host}" in
1563   hppa*64*-*-hpux11*)
1564     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1565     ;;
1566 esac
1567
1568 # Some systems (e.g., one of the i386-aix systems the gas testers are
1569 # using) don't handle "\$" correctly, so don't use it here.
1570 tooldir='${exec_prefix}'/${target_alias}
1571 build_tooldir=${tooldir}
1572
1573 # Generate default definitions for YACC, M4, LEX and other programs that run
1574 # on the build machine.  These are used if the Makefile can't locate these
1575 # programs in objdir.
1576 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
1577 AC_CHECK_PROGS([CONFIGURED_BISON], [bison], [$MISSING bison])
1578 AC_CHECK_PROGS([CONFIGURED_YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
1579 AC_CHECK_PROGS([CONFIGURED_M4], [gm4 gnum4 m4], [$MISSING m4])
1580 AC_CHECK_PROGS([CONFIGURED_FLEX], [flex], [$MISSING flex])
1581 AC_CHECK_PROGS([CONFIGURED_LEX], [flex lex], [$MISSING flex])
1582 AC_CHECK_PROGS([CONFIGURED_MAKEINFO], makeinfo, [$MISSING makeinfo])
1583
1584 # Create a .gdbinit file which runs the one in srcdir
1585 # and tells GDB to look there for source files.
1586
1587 if test -r ${srcdir}/.gdbinit ; then
1588   case ${srcdir} in
1589     .) ;;
1590     *) cat > ./.gdbinit <<EOF
1591 # ${NO_EDIT}
1592 dir ${srcdir}
1593 dir .
1594 source ${srcdir}/.gdbinit
1595 EOF
1596     ;;
1597   esac
1598 fi
1599
1600 # Make sure that the compiler is able to generate an executable.  If it
1601 # can't, we are probably in trouble.  We don't care whether we can run the
1602 # executable--we might be using a cross compiler--we only care whether it
1603 # can be created.  At this point the main configure script has set CC.
1604 we_are_ok=no
1605 echo "int main () { return 0; }" > conftest.c
1606 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1607 if test $? = 0 ; then
1608   if test -s conftest || test -s conftest.exe ; then
1609     we_are_ok=yes
1610   fi
1611 fi
1612 case $we_are_ok in
1613   no)
1614     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1615     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1616     rm -f conftest*
1617     exit 1
1618     ;;
1619 esac
1620 rm -f conftest*
1621
1622 # The Solaris /usr/ucb/cc compiler does not appear to work.
1623 case "${host}" in
1624   sparc-sun-solaris2*)
1625       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1626       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1627           could_use=
1628           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1629           if test -d /opt/cygnus/bin ; then
1630               if test "$could_use" = "" ; then
1631                   could_use="/opt/cygnus/bin"
1632               else
1633                   could_use="$could_use or /opt/cygnus/bin"
1634               fi
1635           fi
1636         if test "$could_use" = "" ; then
1637             echo "Warning: compilation may fail because you're using"
1638             echo "/usr/ucb/cc.  You should change your PATH or CC "
1639             echo "variable and rerun configure."
1640         else
1641             echo "Warning: compilation may fail because you're using"
1642             echo "/usr/ucb/cc, when you should use the C compiler from"
1643             echo "$could_use.  You should change your"
1644             echo "PATH or CC variable and rerun configure."
1645         fi
1646       fi
1647   ;;
1648 esac
1649
1650 case "${host}" in
1651   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1652   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1653   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1654 esac
1655
1656 # Record target_configdirs and the configure arguments for target and
1657 # build configuration in Makefile.
1658 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1659 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1660
1661 # Determine whether gdb needs tk/tcl or not.
1662 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1663 # and in that case we want gdb to be built without tk.  Ugh!
1664 # In fact I believe gdb is the *only* package directly dependent on tk,
1665 # so we should be able to put the 'maybe's in unconditionally and
1666 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1667 # 100% sure that that's safe though.
1668
1669 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1670 case "$enable_gdbtk" in
1671   no)
1672     GDB_TK="" ;;
1673   yes)
1674     GDB_TK="${gdb_tk}" ;;
1675   *)
1676     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1677     # distro.  Eventually someone will fix this and move Insight, nee
1678     # gdbtk to a separate directory.
1679     if test -d ${srcdir}/gdb/gdbtk ; then
1680       GDB_TK="${gdb_tk}"
1681     else
1682       GDB_TK=""
1683     fi
1684     ;;
1685 esac
1686
1687 # Strip out unwanted targets.
1688
1689 # While at that, we remove Makefiles if we were started for recursive
1690 # configuration, so that the top-level Makefile reconfigures them,
1691 # like we used to do when configure itself was recursive.
1692
1693 # Loop over modules.  $extrasub must be used with care, limiting as
1694 # much as possible the usage of range addresses.  That's because autoconf
1695 # splits the sed script to overcome limits in the number of commands,
1696 # and relying on carefully-timed sed passes may turn out to be very hard
1697 # to maintain later.  In this particular case, you just have to be careful
1698 # not to nest @if/@endif pairs, because configure will not warn you at all.
1699
1700 AC_ARG_ENABLE([bootstrap],
1701 [  --enable-bootstrap[=lean]     Enable bootstrapping [no]],,
1702 enable_bootstrap=default)
1703
1704 # Issue errors and warnings for invalid/strange bootstrap combinations.
1705 case "$configdirs" in
1706   *gcc*) have_compiler=yes ;;
1707   *) have_compiler=no ;;
1708 esac
1709
1710 case "$have_compiler:$host:$target:$enable_bootstrap" in
1711   *:*:*:no) ;;
1712
1713   # Default behavior.  (We'll) enable bootstrap if we have a compiler
1714   # and we are in a native configuration.
1715   yes:$build:$build:default)
1716     # This will become 'yes'
1717     enable_bootstrap=no ;;
1718
1719   *:*:*:default)
1720     enable_bootstrap=no ;;
1721
1722   # We have a compiler and we are in a native configuration, bootstrap is ok
1723   yes:$build:$build:yes | yes:$build:$build:lean)
1724     ;;
1725
1726   # Other configurations, but we have a compiler.  Assume the user knows
1727   # what he's doing.
1728   yes:*:*:yes | yes:*:*:lean)
1729     AC_MSG_WARN([trying to bootstrap a cross compiler])
1730     ;;
1731
1732   # No compiler: if they passed --enable-bootstrap explicitly, fail
1733   no:*:*:yes | no:*:*:lean)
1734     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1735
1736   # Fail if wrong command line
1737   *)
1738     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1739     ;;
1740 esac
1741
1742 # Adjust the toplevel makefile according to whether bootstrap was selected.
1743 case "$enable_bootstrap" in
1744   yes)
1745     bootstrap_lean='#'
1746     default_target=bootstrap
1747     bootstrap_suffix=bootstrap ;;
1748   lean)
1749     bootstrap_lean=''
1750     default_target=bootstrap
1751     bootstrap_suffix=bootstrap ;;
1752   no)
1753     default_target=all
1754     bootstrap_suffix=no-bootstrap ;;
1755 esac
1756 AC_SUBST(bootstrap_lean)
1757 AC_SUBST(default_target)
1758
1759 for module in ${build_configdirs} ; do
1760   if test -z "${no_recursion}" \
1761      && test -f ${build_subdir}/${module}/Makefile; then
1762     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1763     rm -f ${build_subdir}/${module}/Makefile
1764   fi
1765   extrasub="$extrasub
1766 /^@if build-$module\$/d
1767 /^@endif build-$module\$/d
1768 /^@if build-$module-$bootstrap_suffix\$/d
1769 /^@endif build-$module-$bootstrap_suffix\$/d"
1770 done
1771 for module in ${configdirs} ; do
1772   if test -z "${no_recursion}" \
1773      && test -f ${module}/Makefile; then
1774     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1775     rm -f ${module}/Makefile
1776   fi
1777   extrasub="$extrasub
1778 /^@if $module\$/d
1779 /^@endif $module\$/d
1780 /^@if $module-$bootstrap_suffix\$/d
1781 /^@endif $module-$bootstrap_suffix\$/d"
1782 done
1783 for module in ${target_configdirs} ; do
1784   if test -z "${no_recursion}" \
1785      && test -f ${target_subdir}/${module}/Makefile; then
1786     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1787     rm -f ${target_subdir}/${module}/Makefile
1788   fi
1789   extrasub="$extrasub
1790 /^@if target-$module\$/d
1791 /^@endif target-$module\$/d
1792 /^@if target-$module-$bootstrap_suffix\$/d
1793 /^@endif target-$module-$bootstrap_suffix\$/d"
1794 done
1795
1796 extrasub="$extrasub
1797 /^@if /,/^@endif /d"
1798
1799 # Create the serialization dependencies.  This uses a temporary file.
1800
1801 AC_ARG_ENABLE([serial-configure],
1802 [  --enable-serial-[{host,target,build}-]configure
1803                           Force sequential configuration of
1804                           sub-packages for the host, target or build
1805                           machine, or all sub-packages])
1806
1807 case ${enable_serial_configure} in
1808   yes)
1809     enable_serial_build_configure=yes
1810     enable_serial_host_configure=yes
1811     enable_serial_target_configure=yes
1812     ;;
1813 esac
1814
1815 # These force 'configure's to be done one at a time, to avoid problems
1816 # with contention over a shared config.cache.
1817 rm -f serdep.tmp
1818 echo '# serdep.tmp' > serdep.tmp
1819 olditem=
1820 test "x${enable_serial_build_configure}" = xyes &&
1821 for item in ${build_configdirs} ; do
1822   case ${olditem} in
1823     "") ;;
1824     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1825   esac
1826   olditem=${item}
1827 done
1828 olditem=
1829 test "x${enable_serial_host_configure}" = xyes &&
1830 for item in ${configdirs} ; do
1831   case ${olditem} in
1832     "") ;;
1833     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1834   esac
1835   olditem=${item}
1836 done
1837 olditem=
1838 test "x${enable_serial_target_configure}" = xyes &&
1839 for item in ${target_configdirs} ; do
1840   case ${olditem} in
1841     "") ;;
1842     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1843   esac
1844   olditem=${item}
1845 done
1846 serialization_dependencies=serdep.tmp
1847 AC_SUBST_FILE(serialization_dependencies)
1848
1849 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1850 # target and nonopt.  These are the ones we might not want to pass
1851 # down to subconfigures.  Also strip program-prefix, program-suffix,
1852 # and program-transform-name, so that we can pass down a consistent
1853 # program-transform-name.  If autoconf has put single quotes around
1854 # any of these arguments (because they contain shell metacharacters)
1855 # then this will fail; in practice this only happens for
1856 # --program-transform-name, so be sure to override --program-transform-name
1857 # at the end of the argument list.
1858 # These will be expanded by make, so quote '$'.
1859 cat <<\EOF_SED > conftestsed
1860 s/ --no[[^ ]]*/ /g
1861 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1862 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1863 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1864 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1865 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1866 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1867 s/ -cache-file[[= ]][[^ ]]*//g
1868 s/ -srcdir[[= ]][[^ ]]*//g
1869 s/ -host[[= ]][[^ ]]*//g
1870 s/ -build[[= ]][[^ ]]*//g
1871 s/ -target[[= ]][[^ ]]*//g
1872 s/ -program-prefix[[= ]][[^ ]]*//g
1873 s/ -program-suffix[[= ]][[^ ]]*//g
1874 s/ -program-transform-name[[= ]][[^ ]]*//g
1875 s/ [[^' -][^ ]*] / /
1876 s/^ *//;s/ *$//
1877 s,\$,$$,g
1878 EOF_SED
1879 sed -f conftestsed <<EOF_SED > conftestsed.out
1880  ${ac_configure_args}
1881 EOF_SED
1882 baseargs=`cat conftestsed.out`
1883 rm -f conftestsed conftestsed.out
1884
1885 # Add in --program-transform-name, after --program-prefix and
1886 # --program-suffix have been applied to it.  Autoconf has already
1887 # doubled dollar signs and backslashes in program_transform_name; we want
1888 # the backslashes un-doubled, and then the entire thing wrapped in single
1889 # quotes, because this will be expanded first by make and then by the shell.
1890 # Also, because we want to override the logic in subdir configure scripts to
1891 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1892 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1893 ${program_transform_name}
1894 EOF_SED
1895 gcc_transform_name=`cat conftestsed.out`
1896 rm -f conftestsed.out
1897 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1898
1899 # For the build-side libraries, we just need to pretend we're native,
1900 # and not use the same cache file.  Multilibs are neither needed nor
1901 # desired.
1902 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
1903
1904 # For host modules, accept cache file option, or specification as blank.
1905 case "${cache_file}" in
1906 "") # empty
1907   cache_file_option="" ;;
1908 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1909   cache_file_option="--cache-file=${cache_file}" ;;
1910 *) # relative path
1911   cache_file_option="--cache-file=../${cache_file}" ;;
1912 esac
1913
1914 # Host dirs don't like to share a cache file either, horribly enough.
1915 # This seems to be due to autoconf 2.5x stupidity.
1916 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1917
1918 target_configargs=${baseargs}
1919
1920 # Passing a --with-cross-host argument lets the target libraries know
1921 # whether they are being built with a cross-compiler or being built
1922 # native.  However, it would be better to use other mechanisms to make the
1923 # sorts of decisions they want to make on this basis.  Please consider
1924 # this option to be deprecated.  FIXME.
1925 if test x${is_cross_compiler} = xyes ; then
1926   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1927 fi
1928
1929 # Default to --enable-multilib.
1930 if test x${enable_multilib} = x ; then
1931   target_configargs="--enable-multilib ${target_configargs}"
1932 fi
1933
1934 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1935 # changed from the earlier setting of with_newlib.
1936 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1937   target_configargs="--with-newlib ${target_configargs}"
1938 fi
1939
1940 # Different target subdirs use different values of certain variables
1941 # (notably CXX).  Worse, multilibs use *lots* of different values.
1942 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1943 # it doesn't automatically accept command-line overrides of them.
1944 # This means it's not safe for target subdirs to share a cache file,
1945 # which is disgusting, but there you have it.  Hopefully this can be
1946 # fixed in future.  It's still worthwhile to use a cache file for each
1947 # directory.  I think.
1948
1949 # Pass the appropriate --build, --host, --target and --cache-file arguments.
1950 # We need to pass --target, as newer autoconf's requires consistency
1951 # for target_alias and gcc doesn't manage it consistently.
1952 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
1953
1954 FLAGS_FOR_TARGET=
1955 case " $target_configdirs " in
1956  *" newlib "*)
1957   case " $target_configargs " in
1958   *" --with-newlib "*)
1959    case "$target" in
1960    *-cygwin*)
1961      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' ;;
1962    esac
1963
1964    # If we're not building GCC, don't discard standard headers.
1965    if test -d ${srcdir}/gcc; then
1966      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1967
1968      if test "${build}" != "${host}"; then
1969        # On Canadian crosses, CC_FOR_TARGET will have already been set
1970        # by `configure', so we won't have an opportunity to add -Bgcc/
1971        # to it.  This is right: we don't want to search that directory
1972        # for binaries, but we want the header files in there, so add
1973        # them explicitly.
1974        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
1975
1976        # Someone might think of using the pre-installed headers on
1977        # Canadian crosses, in case the installed compiler is not fully
1978        # compatible with the compiler being built.  In this case, it
1979        # would be better to flag an error than risking having
1980        # incompatible object files being constructed.  We can't
1981        # guarantee that an error will be flagged, but let's hope the
1982        # compiler will do it, when presented with incompatible header
1983        # files.
1984      fi
1985    fi
1986
1987    case "${target}-${is_cross_compiler}" in
1988    i[[3456789]]86-*-linux*-no)
1989       # Here host == target, so we don't need to build gcc,
1990       # so we don't want to discard standard headers.
1991       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
1992       ;;
1993    *)
1994       # If we're building newlib, use its generic headers last, but search
1995       # for any libc-related directories first (so make it the last -B
1996       # switch).
1997       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
1998       ;;
1999    esac
2000    ;;
2001   esac
2002   ;;
2003 esac
2004
2005 # Allow the user to override the flags for
2006 # our build compiler if desired.
2007 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2008
2009 # On Canadian crosses, we'll be searching the right directories for
2010 # the previously-installed cross compiler, so don't bother to add
2011 # flags for directories within the install tree of the compiler
2012 # being built; programs in there won't even run.
2013 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2014   # Search for pre-installed headers if nothing else fits.
2015   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2016 fi
2017
2018 if test "x${use_gnu_ld}" = x &&
2019    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2020   # Arrange for us to find uninstalled linker scripts.
2021   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2022 fi
2023
2024 if test "x${CC_FOR_TARGET+set}" = xset; then
2025   :
2026 elif test -d ${srcdir}/gcc; then
2027   CC_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/'
2028 elif test "$host" = "$target"; then
2029   CC_FOR_TARGET='$(CC)'
2030 else
2031   CC_FOR_TARGET=`echo gcc | sed "${program_transform_name}"`
2032 fi
2033 CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2034
2035 if test "x${GCJ_FOR_TARGET+set}" = xset; then
2036   :
2037 elif test -d ${srcdir}/gcc; then
2038   GCJ_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/'
2039 elif test "$host" = "$target"; then
2040   GCJ_FOR_TARGET='gcj'
2041 else
2042   GCJ_FOR_TARGET=`echo gcj | sed "${program_transform_name}"`
2043 fi
2044 GCJ_FOR_TARGET=$GCJ_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2045
2046 if test "x${GFORTRAN_FOR_TARGET+set}" = xset; then
2047   :
2048 elif test -d ${srcdir}/gcc; then
2049   GFORTRAN_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/'
2050 elif test "$host" = "$target"; then
2051   GFORTRAN_FOR_TARGET='gfortran'
2052 else
2053   GFORTRAN_FOR_TARGET=`echo gfortran | sed "${program_transform_name}"`
2054 fi
2055 case $GFORTRAN_FOR_TARGET in
2056 *' $(FLAGS_FOR_TARGET)') ;;
2057 *) GFORTRAN_FOR_TARGET=$GFORTRAN_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
2058 esac
2059
2060 # Don't use libstdc++-v3's flags to configure/build itself.
2061 libstdcxx_flags='`test ! -f $$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$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2062 raw_libstdcxx_flags='-L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2063
2064 if test "x${CXX_FOR_TARGET+set}" = xset; then
2065   if test "x${RAW_CXX_FOR_TARGET+set}" != xset; then
2066     RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2067   fi
2068 elif test -d ${srcdir}/gcc; then
2069   # We add -shared-libgcc to CXX_FOR_TARGET whenever we use xgcc instead
2070   # of g++ for linking C++ or Java, because g++ has -shared-libgcc by
2071   # default whereas gcc does not.
2072   # RAW_CXX_FOR_TARGET is for linking C++ or java; CXX_FOR_TARGET is for
2073   # all other cases.
2074   CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ '$libstdcxx_flags
2075   RAW_CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ '$raw_libstdcxx_flags
2076 elif test "$host" = "$target"; then
2077   CXX_FOR_TARGET='$(CXX)'
2078   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2079 else
2080   CXX_FOR_TARGET=`echo c++ | sed "${program_transform_name}"`
2081   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2082 fi
2083 CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2084 RAW_CXX_FOR_TARGET=$RAW_CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2085
2086 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2087 qRAW_CXX_FOR_TARGET=`echo "$RAW_CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2088
2089 # We want to defer the evaluation of `cmd`s and shell variables in
2090 # CXX_FOR_TARGET when recursing in the top-level Makefile, such as for
2091 # bootstrap.  We'll enclose CXX_FOR_TARGET_FOR_RECURSIVE_MAKE in single
2092 # quotes, but we still have to duplicate `$'s so that shell variables
2093 # can be expanded by the nested make as shell variables, not as make
2094 # macros.
2095 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2096 qqRAW_CXX_FOR_TARGET=`echo "$qRAW_CXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2097
2098 # Wrap CC_FOR_TARGET and friends, for certain types of builds.
2099 CC_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${CC_FOR_TARGET}"
2100 GCJ_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GCJ_FOR_TARGET}"
2101 GFORTRAN_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GFORTRAN_FOR_TARGET}"
2102 CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qCXX_FOR_TARGET}"
2103 RAW_CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qRAW_CXX_FOR_TARGET}"
2104 CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqCXX_FOR_TARGET}"
2105 RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqRAW_CXX_FOR_TARGET}"
2106
2107 # Makefile fragments.
2108 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2109 do
2110   eval fragval=\$$frag
2111   if test $fragval != /dev/null; then
2112     eval $frag=${srcdir}/$fragval
2113   fi
2114 done
2115 AC_SUBST_FILE(host_makefile_frag)
2116 AC_SUBST_FILE(target_makefile_frag)
2117 AC_SUBST_FILE(alphaieee_frag)
2118 AC_SUBST_FILE(ospace_frag)
2119
2120 # Miscellanea: directories, flags, etc.
2121 AC_SUBST(RPATH_ENVVAR)
2122 AC_SUBST(BUILD_PREFIX)
2123 AC_SUBST(BUILD_PREFIX_1)
2124 AC_SUBST(tooldir)
2125 AC_SUBST(build_tooldir)
2126 AC_SUBST(GDB_TK)
2127
2128 # Build module lists & subconfigure args.
2129 AC_SUBST(build_configargs)
2130 AC_SUBST(build_configdirs)
2131
2132 # Host module lists & subconfigure args.
2133 AC_SUBST(host_configargs)
2134 AC_SUBST(configdirs)
2135
2136 # Target module lists & subconfigure args.
2137 AC_SUBST(target_configargs)
2138 AC_SUBST(target_configdirs)
2139
2140 # Build tools.
2141 AC_SUBST(CC_FOR_BUILD)
2142 AC_SUBST(config_shell)
2143
2144 # Host tools.
2145 NCN_STRICT_CHECK_TOOL(AR, ar)
2146 NCN_STRICT_CHECK_TOOL(AS, as)
2147 NCN_STRICT_CHECK_TOOL(DLLTOOL, dlltool)
2148 NCN_STRICT_CHECK_TOOL(LD, ld)
2149 NCN_STRICT_CHECK_TOOL(NM, nm)
2150 NCN_STRICT_CHECK_TOOL(RANLIB, ranlib, :)
2151 NCN_STRICT_CHECK_TOOL(WINDRES, windres)
2152 NCN_STRICT_CHECK_TOOL(OBJCOPY, objcopy)
2153 NCN_STRICT_CHECK_TOOL(OBJDUMP, objdump)
2154 AC_SUBST(CC)
2155 AC_SUBST(CXX)
2156 AC_SUBST(CFLAGS)
2157 AC_SUBST(CFLAGS_FOR_BUILD)
2158 AC_SUBST(CXXFLAGS)
2159
2160 # Target tools.
2161 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AR_FOR_TARGET, ar)
2162 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AS_FOR_TARGET, as)
2163 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_DLLTOOL_FOR_TARGET, dlltool)
2164 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_LD_FOR_TARGET, ld)
2165 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_NM_FOR_TARGET, nm)
2166 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_RANLIB_FOR_TARGET, ranlib, :)
2167 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_WINDRES_FOR_TARGET, windres)
2168
2169 AC_SUBST(GCC_FOR_TARGET)
2170 AC_SUBST(FLAGS_FOR_TARGET)
2171 AC_SUBST(CC_FOR_TARGET)
2172 AC_SUBST(GCJ_FOR_TARGET)
2173 AC_SUBST(GFORTRAN_FOR_TARGET)
2174 AC_SUBST(CXX_FOR_TARGET)
2175 AC_SUBST(RAW_CXX_FOR_TARGET)
2176 AC_SUBST(CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2177 AC_SUBST(RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2178
2179 # Fix up target tools.
2180 if test "x${build}" = "x${host}" ; then
2181   # In this case, the newly built tools can and should be used,
2182   # so we override the results of the autoconf tests.
2183   # This should really only happen when the tools are actually being built,
2184   # but that's a further refinement.  The new build scheme, where
2185   # tools are built into a structure paralleling where they're installed,
2186   # should also eliminate all of this cleanly.
2187   AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
2188   AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
2189   DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
2190   LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
2191   NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
2192   RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
2193   WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
2194 else
2195   # Just use the ones we found.
2196   AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)"
2197   AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)"
2198   DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)"
2199   LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)"
2200   NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)"
2201   RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)"
2202   WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)"
2203 fi
2204 AC_SUBST(AR_FOR_TARGET)
2205 AC_SUBST(AS_FOR_TARGET)
2206 AC_SUBST(DLLTOOL_FOR_TARGET)
2207 AC_SUBST(LD_FOR_TARGET)
2208 AC_SUBST(NM_FOR_TARGET)
2209 AC_SUBST(RANLIB_FOR_TARGET)
2210 AC_SUBST(WINDRES_FOR_TARGET)
2211
2212 # Certain tools may need extra flags.
2213 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2214 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2215 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2216
2217 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2218 AC_ARG_ENABLE(maintainer-mode,
2219 [  --enable-maintainer-mode enable make rules and dependencies not useful
2220                           (and sometimes confusing) to the casual installer],
2221       USE_MAINTAINER_MODE=$enableval,
2222       USE_MAINTAINER_MODE=no)
2223 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2224 AC_SUBST(MAINTAINER_MODE_TRUE)
2225 AC_SUBST(MAINTAINER_MODE_FALSE)
2226 if test "$USE_MAINTAINER_MODE" = yes; then
2227   MAINTAINER_MODE_TRUE=
2228   MAINTAINER_MODE_FALSE='#'
2229 else
2230   MAINTAINER_MODE_TRUE='#'
2231   MAINTAINER_MODE_FALSE=
2232 fi
2233 MAINT=$MAINTAINER_MODE_TRUE
2234 AC_SUBST(MAINT)dnl
2235
2236 # ---------------------
2237 # GCC bootstrap support
2238 # ---------------------
2239
2240 # Stage specific cflags for build.
2241 stage1_cflags="-g"
2242 case $build in
2243   vax-*-*)
2244     case ${GCC} in
2245       yes) stage1_cflags="-g -Wa,-J" ;;
2246       *) stage1_cflags="-g -J" ;;
2247     esac ;;
2248   powerpc-*-darwin*)
2249     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2250     # sources; use -no-cpp-precomp to get to GNU cpp.
2251     # Apple's GCC has bugs in designated initializer handling, so disable
2252     # that too.
2253     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2254     ;;
2255 esac
2256 AC_SUBST(stage1_cflags)
2257
2258 # It makes debugging easier if we create as symlinks the stage directories
2259 # gcc for stageN-gcc and stagePREV-gcc for stage(N-1).  In case this is not
2260 # possible, however, we can resort to mv.
2261 AC_CACHE_CHECK([if symbolic links between directories work],
2262 [gcc_cv_prog_ln_s_dir],
2263 [if test "${LN_S}" = "ln -s" \
2264    && mkdir confdir.s1 \
2265    && ln -s confdir.s1 confdir.s2 \
2266    && echo timestamp1 > confdir.s1/conftest.1 \
2267    && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
2268    && echo timestamp2 > confdir.s2/conftest.2 \
2269    && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
2270    && rm -f confdir.s2; then
2271   gcc_cv_prog_ln_s_dir=yes
2272 else
2273   gcc_cv_prog_ln_s_dir=no
2274 fi
2275 rm -rf confdir.s1 confdir.s2])
2276
2277 case ${gcc_cv_prog_ln_s_dir} in
2278   yes)
2279     CREATE_LINK_TO_DIR='ln -s $$1 $$2'
2280     UNDO_LINK_TO_DIR='rm -f $$1' ;;
2281   *)
2282     CREATE_LINK_TO_DIR='mv $$1 $$2'
2283     UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
2284 esac
2285 AC_SUBST(CREATE_LINK_TO_DIR)
2286 AC_SUBST(UNDO_LINK_TO_DIR)
2287
2288 # Enable -Werror in bootstrap stage2 and later.
2289 # Change the default to "no" on release branches.
2290 AC_ARG_ENABLE(werror,
2291 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2292 [enable_werror=yes])
2293 case ${enable_werror} in
2294   yes) stage2_werror_flag="--enable-werror-always" ;;
2295   *) stage2_werror_flag="" ;;
2296 esac
2297 AC_SUBST(stage2_werror_flag)
2298
2299 AC_OUTPUT(Makefile)