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 target-libstdc++-v3 ${libgcj}"
 425     ;;
 426   m32c-*-*)
 427     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 428     ;;
 429   alpha*-dec-osf*)
 430     # ld works, but does not support shared libraries.
 431     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 432     # gas doesn't generate exception information.
 433     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 434     ;;
 435   alpha*-*-*vms*)
 436     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 437     ;;
 438   alpha*-*-linux*)
 439     # newlib is not 64 bit ready
 440     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 441     ;;
 442   alpha*-*-*)
 443     # newlib is not 64 bit ready
 444     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 445     ;;
 446   am33_2.0-*-linux*)
 447     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 448     ;;
 449   sh-*-linux*)
 450     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 451     ;;
 452   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 453     noconfigdirs="$noconfigdirs ${libgcj}"
 454     noconfigdirs="$noconfigdirs target-examples"
 455     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 456     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 457     noconfigdirs="$noconfigdirs expect dejagnu"
 458     # the C++ libraries don't build on top of CE's C libraries
 459     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 460     noconfigdirs="$noconfigdirs target-newlib"
 461     case "${host}" in
 462       *-*-cygwin*) ;; # keep gdb and readline
 463       *) noconfigdirs="$noconfigdirs gdb readline"
 464          ;;
 465     esac
 466     ;;
 467   arc-*-*)
 468     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 469     ;;
 470   arm-semi-aof )
 471     ;;
 472   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 473     noconfigdirs="$noconfigdirs ${libgcj}"
 474     ;;
 475   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 476     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 477     ;;
 478   arm*-*-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 fortran"
 510         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 511       *-*-elf)
 512         unsupported_languages="$unsupported_languages fortran"
 513         noconfigdirs="$noconfigdirs target-boehm-gc";;
 514       *-*-linux*)
 515         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 516       *)
 517         unsupported_languages="$unsupported_languages fortran"
 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 fortran 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 target-libssp ${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 target-libssp ${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   BUILD_PREFIX=${build_alias}-
1004   BUILD_PREFIX_1=${build_alias}-
1005
1006 else
1007   # Set reasonable default values for some tools even if not Canadian.
1008   # Of course, these are different reasonable default values, originally
1009   # specified directly in the Makefile.
1010   # We don't export, so that autoconf can do its job.
1011   # Note that all these settings are above the fragment inclusion point
1012   # in Makefile.in, so can still be overridden by fragments.
1013   # This is all going to change when we autoconfiscate...
1014
1015   CC_FOR_BUILD="\$(CC)"
1016   BUILD_PREFIX=
1017   BUILD_PREFIX_1=loser-
1018
1019   AC_PROG_CC
1020
1021   # We must set the default linker to the linker used by gcc for the correct
1022   # operation of libtool.  If LD is not defined and we are using gcc, try to
1023   # set the LD default to the ld used by gcc.
1024   if test -z "$LD"; then
1025     if test "$GCC" = yes; then
1026       case $build in
1027       *-*-mingw*)
1028         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1029       *)
1030         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1031       esac
1032       case $gcc_prog_ld in
1033       # Accept absolute paths.
1034       [[\\/]* | [A-Za-z]:[\\/]*)]
1035         LD="$gcc_prog_ld" ;;
1036       esac
1037     fi
1038   fi
1039
1040   CXX=${CXX-"c++"}
1041   CFLAGS=${CFLAGS-"-g"}
1042   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1043 fi
1044
1045 ACX_PROG_GNAT
1046 ACX_PROG_CMP_IGNORE_INITIAL
1047
1048 # Check for GMP and MPFR
1049 gmplibs=
1050 gmpinc=
1051 have_gmp=yes
1052 # Specify a location for mpfr
1053 # check for this first so it ends up on the link line before gmp.
1054 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1055
1056 if test "x$with_mpfr_dir" != x; then
1057   gmpinc="-I$with_mpfr_dir"
1058   gmplibs="$with_mpfr_dir/libmpfr.a"
1059 else
1060   gmplibs="-lmpfr"
1061 fi
1062
1063 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1064
1065 if test "x$with_mpfr" != x; then
1066   gmplibs="-L$with_mpfr/lib $gmplibs"
1067   gmpinc="-I$with_mpfr/include"
1068 fi
1069
1070 # Specify a location for gmp
1071 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1072
1073 if test "x$with_gmp_dir" != x; then
1074   gmpinc="$gmpinc -I$with_gmp_dir"
1075   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1076     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1077   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1078     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1079   fi
1080   # One of the later tests will catch the error if neither library is present.
1081 else
1082   gmplibs="$gmplibs -lgmp"
1083 fi
1084
1085 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1086
1087 if test "x$with_gmp" != x; then
1088   gmplibs="-L$with_gmp/lib $gmplibs"
1089   gmpinc="-I$with_gmp/include $gmpinc"
1090 fi
1091
1092 saved_CFLAGS="$CFLAGS"
1093 CFLAGS="$CFLAGS $gmpinc"
1094 # Check GMP actually works
1095 AC_MSG_CHECKING([for correct version of gmp.h])
1096 AC_TRY_COMPILE([#include "gmp.h"],[
1097 #if __GNU_MP_VERSION < 3
1098 choke me
1099 #endif
1100 ], [AC_MSG_RESULT([yes])],
1101   [AC_MSG_RESULT([no]); have_gmp=no])
1102
1103 if test x"$have_gmp" = xyes; then
1104   AC_MSG_CHECKING([for MPFR])
1105
1106   saved_LIBS="$LIBS"
1107   LIBS="$LIBS $gmplibs"
1108   AC_TRY_LINK([#include <gmp.h>
1109 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1110     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1111   LIBS="$saved_LIBS"
1112   CFLAGS="$saved_CFLAGS"
1113 fi
1114
1115 # Flags needed for both GMP and/or MPFR
1116 AC_SUBST(gmplibs)
1117 AC_SUBST(gmpinc)
1118
1119 # By default, C is the only stage 1 language.
1120 stage1_languages=c
1121 AC_SUBST(stage1_languages)
1122
1123 # Figure out what language subdirectories are present.
1124 # Look if the user specified --enable-languages="..."; if not, use
1125 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1126 # go away some day.
1127 # NB:  embedded tabs in this IF block -- do not untabify
1128 if test -d ${srcdir}/gcc; then
1129   if test x"${enable_languages+set}" != xset; then
1130     if test x"${LANGUAGES+set}" = xset; then
1131       enable_languages="${LANGUAGES}"
1132         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1133     else
1134       enable_languages=all
1135     fi
1136   else
1137     if test x"${enable_languages}" = x ||
1138        test x"${enable_languages}" = xyes;
1139        then
1140       echo configure.in: --enable-languages needs at least one language argument 1>&2
1141       exit 1
1142     fi
1143   fi
1144   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1145
1146   # 'f95' is the old name for the 'fortran' language. We issue a warning
1147   # and make the substitution.
1148   case ,${enable_languages}, in
1149     *,f95,*)
1150       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1151       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1152       ;;
1153   esac
1154
1155   # First scan to see if an enabled language requires some other language.
1156   # We assume that a given config-lang.in will list all the language
1157   # front ends it requires, even if some are required indirectly.
1158   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1159     case ${lang_frag} in
1160       ..) ;;
1161       # The odd quoting in the next line works around
1162       # an apparent bug in bash 1.12 on linux.
1163       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1164       *)
1165         # From the config-lang.in, get $language, $lang_requires
1166         language=
1167         lang_requires=
1168         . ${lang_frag}
1169         for other in ${lang_requires} ; do
1170           case ,${enable_languages}, in
1171             *,$other,*) ;;
1172             *,all,*) ;;
1173             *,$language,*)
1174               echo " \`$other' language required by \`$language'; enabling" 1>&2
1175               enable_languages="${enable_languages},${other}"
1176               ;;
1177           esac
1178         done
1179         ;;
1180     esac
1181   done
1182
1183   new_enable_languages=c
1184   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1185   potential_languages=c
1186
1187   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1188     case ${lang_frag} in
1189       ..) ;;
1190       # The odd quoting in the next line works around
1191       # an apparent bug in bash 1.12 on linux.
1192       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1193       *)
1194         # From the config-lang.in, get $language, $target_libs,
1195         # $lang_dirs, $boot_language, and $build_by_default
1196         language=
1197         target_libs=
1198         lang_dirs=
1199         boot_language=
1200         build_by_default=
1201         need_gmp=
1202         . ${lang_frag}
1203         potential_languages="${potential_languages},${language}"
1204         # This is quite sensitive to the ordering of the case statement arms.
1205         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1206           *::*:*)
1207             echo "${lang_frag} doesn't set \$language." 1>&2
1208             exit 1
1209             ;;
1210           *:ada:no:*)
1211             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1212             add_this_lang=no
1213             ;;
1214           *,${language},*:*:*:*)
1215             # Language was explicitly selected; include it.
1216             add_this_lang=yes
1217             ;;
1218           *,all,*:*:*:no)
1219             # 'all' was selected, but this is not a default language
1220             # so do not include it.
1221             add_this_lang=no
1222             ;;
1223           *,all,*:*:*:*)
1224             # 'all' was selected and this is a default language; include it.
1225             add_this_lang=yes
1226             ;;
1227           *)
1228             add_this_lang=no
1229             ;;
1230         esac
1231
1232         # Disable languages that need GMP if it isn't available.
1233         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1234           *,${language},*:no:yes)
1235             # Specifically requested language; tell them.
1236             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1237             ;;
1238           *:no:yes)
1239             # Silently disable.
1240             add_this_lang=no
1241             ;;
1242         esac
1243
1244         # Disable a language that is unsupported by the target.
1245         case " $unsupported_languages " in
1246           *" $language "*)
1247             add_this_lang=no
1248             ;;
1249         esac
1250
1251         case $add_this_lang in
1252           no)
1253             # Remove language-dependent dirs.
1254             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1255             ;;
1256           *)
1257             new_enable_languages="$new_enable_languages,$language"
1258             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1259             case ${boot_language} in
1260               yes)
1261                 # Add to (comma-separated) list of stage 1 languages.
1262                 stage1_languages="${stage1_languages},${language}"
1263                 ;;
1264             esac
1265             ;;
1266         esac
1267         ;;
1268     esac
1269   done
1270
1271   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1272   if test "x$missing_languages" != x; then
1273     AC_MSG_ERROR([
1274 The following requested languages could not be built: ${missing_languages}
1275 Recognised languages are: ${potential_languages}])
1276   fi
1277
1278   if test "x$new_enable_languages" != "x$enable_languages"; then
1279     echo The following languages will be built: ${new_enable_languages}
1280   fi
1281   enable_languages="$new_enable_languages"
1282   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1283 fi
1284
1285 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1286 # $build_configdirs and $target_configdirs.
1287 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1288
1289 notsupp=""
1290 for dir in . $skipdirs $noconfigdirs ; do
1291   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1292   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1293     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1294     if test -r $srcdir/$dirname/configure ; then
1295       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1296         true
1297       else
1298         notsupp="$notsupp $dir"
1299       fi
1300     fi
1301   fi
1302   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1303     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1304     if test -r $srcdir/$dirname/configure ; then
1305       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1306         true
1307       else
1308         notsupp="$notsupp $dir"
1309       fi
1310     fi
1311   fi
1312   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1313     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1314     if test -r $srcdir/$dirname/configure ; then
1315       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1316         true
1317       else
1318         notsupp="$notsupp $dir"
1319       fi
1320     fi
1321   fi
1322 done
1323
1324 # Sometimes the tools are distributed with libiberty but with no other
1325 # libraries.  In that case, we don't want to build target-libiberty.
1326 if test -n "${target_configdirs}" ; then
1327   others=
1328   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1329     if test "$i" != "libiberty" ; then
1330       if test -r $srcdir/$i/configure ; then
1331         others=yes;
1332         break;
1333       fi
1334     fi
1335   done
1336   if test -z "${others}" ; then
1337     target_configdirs=
1338   fi
1339 fi
1340
1341 # Quietly strip out all directories which aren't configurable in this tree.
1342 # This relies on all configurable subdirectories being autoconfiscated, which
1343 # is now the case.
1344 build_configdirs_all="$build_configdirs"
1345 build_configdirs=
1346 for i in ${build_configdirs_all} ; do
1347   j=`echo $i | sed -e s/build-//g`
1348   if test -f ${srcdir}/$j/configure ; then
1349     build_configdirs="${build_configdirs} $i"
1350   fi
1351 done
1352
1353 configdirs_all="$configdirs"
1354 configdirs=
1355 for i in ${configdirs_all} ; do
1356   if test -f ${srcdir}/$i/configure ; then
1357     configdirs="${configdirs} $i"
1358   fi
1359 done
1360
1361 target_configdirs_all="$target_configdirs"
1362 target_configdirs=
1363 for i in ${target_configdirs_all} ; do
1364   j=`echo $i | sed -e s/target-//g`
1365   if test -f ${srcdir}/$j/configure ; then
1366     target_configdirs="${target_configdirs} $i"
1367   fi
1368 done
1369
1370 # Produce a warning message for the subdirs we can't configure.
1371 # This isn't especially interesting in the Cygnus tree, but in the individual
1372 # FSF releases, it's important to let people know when their machine isn't
1373 # supported by the one or two programs in a package.
1374
1375 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1376   # If $appdirs is non-empty, at least one of those directories must still
1377   # be configured, or we error out.  (E.g., if the gas release supports a
1378   # specified target in some subdirs but not the gas subdir, we shouldn't
1379   # pretend that all is well.)
1380   if test -n "$appdirs" ; then
1381     for dir in $appdirs ; do
1382       if test -r $dir/Makefile.in ; then
1383         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1384           appdirs=""
1385           break
1386         fi
1387         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1388           appdirs=""
1389           break
1390         fi
1391       fi
1392     done
1393     if test -n "$appdirs" ; then
1394       echo "*** This configuration is not supported by this package." 1>&2
1395       exit 1
1396     fi
1397   fi
1398   # Okay, some application will build, or we don't care to check.  Still
1399   # notify of subdirs not getting built.
1400   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1401   echo "    ${notsupp}" 1>&2
1402   echo "    (Any other directories should still work fine.)" 1>&2
1403 fi
1404
1405 case "$host" in
1406   *msdosdjgpp*)
1407     enable_gdbtk=no ;;
1408 esac
1409
1410 copy_dirs=
1411
1412 AC_ARG_WITH([build-sysroot],
1413   [  --with-build-sysroot=sysroot
1414                           use sysroot as the system root during the build],
1415   [if test x"$withval" != x ; then
1416      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1417    fi],
1418   [SYSROOT_CFLAGS_FOR_TARGET=])
1419 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1420
1421 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1422 # the named directory are copied to $(tooldir)/sys-include.
1423 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1424   if test x${is_cross_compiler} = xno ; then
1425     echo 1>&2 '***' --with-headers is only supported when cross compiling
1426     exit 1
1427   fi
1428   if test x"${with_headers}" != xyes ; then
1429     case "${exec_prefixoption}" in
1430     "") x=${prefix} ;;
1431     *) x=${exec_prefix} ;;
1432     esac
1433     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1434   fi
1435 fi
1436
1437 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1438 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1439 # are permitted.
1440 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1441   if test x${is_cross_compiler} = xno ; then
1442     echo 1>&2 '***' --with-libs is only supported when cross compiling
1443     exit 1
1444   fi
1445   if test x"${with_libs}" != xyes ; then
1446     # Copy the libraries in reverse order, so that files in the first named
1447     # library override files in subsequent libraries.
1448     case "${exec_prefixoption}" in
1449     "") x=${prefix} ;;
1450     *) x=${exec_prefix} ;;
1451     esac
1452     for l in ${with_libs}; do
1453       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1454     done
1455   fi
1456 fi
1457
1458 # Handle ${copy_dirs}
1459 set fnord ${copy_dirs}
1460 shift
1461 while test $# != 0 ; do
1462   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1463     :
1464   else
1465     echo Copying $1 to $2
1466
1467     # Use the install script to create the directory and all required
1468     # parent directories.
1469     if test -d $2 ; then
1470       :
1471     else
1472       echo >config.temp
1473       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1474     fi
1475
1476     # Copy the directory, assuming we have tar.
1477     # FIXME: Should we use B in the second tar?  Not all systems support it.
1478     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1479
1480     # It is the responsibility of the user to correctly adjust all
1481     # symlinks.  If somebody can figure out how to handle them correctly
1482     # here, feel free to add the code.
1483
1484     echo $1 > $2/COPIED
1485   fi
1486   shift; shift
1487 done
1488
1489 extra_arflags_for_target=
1490 extra_nmflags_for_target=
1491 extra_ranlibflags_for_target=
1492 target_makefile_frag=/dev/null
1493 case "${target}" in
1494   *-*-netware*)
1495     target_makefile_frag="config/mt-netware"
1496     ;;
1497   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1498     target_makefile_frag="config/mt-gnu"
1499     ;;
1500   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1501     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1502     # commands to handle both 32-bit and 64-bit objects.  These flags are
1503     # harmless if we're using GNU nm or ar.
1504     extra_arflags_for_target=" -X32_64"
1505     extra_nmflags_for_target=" -B -X32_64"
1506     ;;
1507   *-*-darwin*)
1508     # ranlib from Darwin requires the -c flag to look at common symbols.
1509     extra_ranlibflags_for_target=" -c"
1510     ;;
1511   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1512     target_makefile_frag="config/mt-wince"
1513     ;;
1514 esac
1515
1516 alphaieee_frag=/dev/null
1517 case $target in
1518   alpha*-*-*)
1519     # This just makes sure to use the -mieee option to build target libs.
1520     # This should probably be set individually by each library.
1521     alphaieee_frag="config/mt-alphaieee"
1522     ;;
1523 esac
1524
1525 # If --enable-target-optspace always use -Os instead of -O2 to build
1526 # the target libraries, similarly if it is not specified, use -Os
1527 # on selected platforms.
1528 ospace_frag=/dev/null
1529 case "${enable_target_optspace}:${target}" in
1530   yes:*)
1531     ospace_frag="config/mt-ospace"
1532     ;;
1533   :d30v-*)
1534     ospace_frag="config/mt-d30v"
1535     ;;
1536   :m32r-* | :d10v-* | :fr30-*)
1537     ospace_frag="config/mt-ospace"
1538     ;;
1539   no:* | :*)
1540     ;;
1541   *)
1542     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1543     ;;
1544 esac
1545
1546 # Set with_gnu_as and with_gnu_ld as appropriate.
1547 #
1548 # This is done by determining whether or not the appropriate directory
1549 # is available, and by checking whether or not specific configurations
1550 # have requested that this magic not happen.
1551 #
1552 # The command line options always override the explicit settings in
1553 # configure.in, and the settings in configure.in override this magic.
1554 #
1555 # If the default for a toolchain is to use GNU as and ld, and you don't
1556 # want to do that, then you should use the --without-gnu-as and
1557 # --without-gnu-ld options for the configure script.
1558
1559 if test x${use_gnu_as} = x &&
1560    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1561   with_gnu_as=yes
1562   extra_host_args="$extra_host_args --with-gnu-as"
1563 fi
1564
1565 if test x${use_gnu_ld} = x &&
1566    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1567   with_gnu_ld=yes
1568   extra_host_args="$extra_host_args --with-gnu-ld"
1569 fi
1570
1571 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1572 # can detect this case.
1573
1574 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1575   with_newlib=yes
1576   extra_host_args="$extra_host_args --with-newlib"
1577 fi
1578
1579 # Default to using --with-stabs for certain targets.
1580 if test x${with_stabs} = x ; then
1581   case "${target}" in
1582   mips*-*-irix[[56]]*)
1583     ;;
1584   mips*-*-* | alpha*-*-osf*)
1585     with_stabs=yes;
1586     extra_host_args="${extra_host_args} --with-stabs"
1587     ;;
1588   esac
1589 fi
1590
1591 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1592 # them automatically.
1593 case "${host}" in
1594   hppa*64*-*-hpux11*)
1595     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1596     ;;
1597 esac
1598
1599 # Some systems (e.g., one of the i386-aix systems the gas testers are
1600 # using) don't handle "\$" correctly, so don't use it here.
1601 tooldir='${exec_prefix}'/${target_alias}
1602 build_tooldir=${tooldir}
1603
1604 # Generate default definitions for YACC, M4, LEX and other programs that run
1605 # on the build machine.  These are used if the Makefile can't locate these
1606 # programs in objdir.
1607 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
1608 AC_CHECK_PROGS([CONFIGURED_BISON], [bison], [$MISSING bison])
1609 AC_CHECK_PROGS([CONFIGURED_YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
1610 AC_CHECK_PROGS([CONFIGURED_M4], [gm4 gnum4 m4], [$MISSING m4])
1611 AC_CHECK_PROGS([CONFIGURED_FLEX], [flex], [$MISSING flex])
1612 AC_CHECK_PROGS([CONFIGURED_LEX], [flex lex], [$MISSING flex])
1613 AC_CHECK_PROGS([CONFIGURED_MAKEINFO], makeinfo, [$MISSING makeinfo])
1614
1615 # Create a .gdbinit file which runs the one in srcdir
1616 # and tells GDB to look there for source files.
1617
1618 if test -r ${srcdir}/.gdbinit ; then
1619   case ${srcdir} in
1620     .) ;;
1621     *) cat > ./.gdbinit <<EOF
1622 # ${NO_EDIT}
1623 dir ${srcdir}
1624 dir .
1625 source ${srcdir}/.gdbinit
1626 EOF
1627     ;;
1628   esac
1629 fi
1630
1631 # Make sure that the compiler is able to generate an executable.  If it
1632 # can't, we are probably in trouble.  We don't care whether we can run the
1633 # executable--we might be using a cross compiler--we only care whether it
1634 # can be created.  At this point the main configure script has set CC.
1635 we_are_ok=no
1636 echo "int main () { return 0; }" > conftest.c
1637 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1638 if test $? = 0 ; then
1639   if test -s conftest || test -s conftest.exe ; then
1640     we_are_ok=yes
1641   fi
1642 fi
1643 case $we_are_ok in
1644   no)
1645     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1646     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1647     rm -f conftest*
1648     exit 1
1649     ;;
1650 esac
1651 rm -f conftest*
1652
1653 # The Solaris /usr/ucb/cc compiler does not appear to work.
1654 case "${host}" in
1655   sparc-sun-solaris2*)
1656       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1657       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1658           could_use=
1659           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1660           if test -d /opt/cygnus/bin ; then
1661               if test "$could_use" = "" ; then
1662                   could_use="/opt/cygnus/bin"
1663               else
1664                   could_use="$could_use or /opt/cygnus/bin"
1665               fi
1666           fi
1667         if test "$could_use" = "" ; then
1668             echo "Warning: compilation may fail because you're using"
1669             echo "/usr/ucb/cc.  You should change your PATH or CC "
1670             echo "variable and rerun configure."
1671         else
1672             echo "Warning: compilation may fail because you're using"
1673             echo "/usr/ucb/cc, when you should use the C compiler from"
1674             echo "$could_use.  You should change your"
1675             echo "PATH or CC variable and rerun configure."
1676         fi
1677       fi
1678   ;;
1679 esac
1680
1681 case "${host}" in
1682   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1683   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1684   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1685 esac
1686
1687 # Record target_configdirs and the configure arguments for target and
1688 # build configuration in Makefile.
1689 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1690 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1691
1692 # Determine whether gdb needs tk/tcl or not.
1693 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1694 # and in that case we want gdb to be built without tk.  Ugh!
1695 # In fact I believe gdb is the *only* package directly dependent on tk,
1696 # so we should be able to put the 'maybe's in unconditionally and
1697 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1698 # 100% sure that that's safe though.
1699
1700 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1701 case "$enable_gdbtk" in
1702   no)
1703     GDB_TK="" ;;
1704   yes)
1705     GDB_TK="${gdb_tk}" ;;
1706   *)
1707     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1708     # distro.  Eventually someone will fix this and move Insight, nee
1709     # gdbtk to a separate directory.
1710     if test -d ${srcdir}/gdb/gdbtk ; then
1711       GDB_TK="${gdb_tk}"
1712     else
1713       GDB_TK=""
1714     fi
1715     ;;
1716 esac
1717
1718 # Strip out unwanted targets.
1719
1720 # While at that, we remove Makefiles if we were started for recursive
1721 # configuration, so that the top-level Makefile reconfigures them,
1722 # like we used to do when configure itself was recursive.
1723
1724 # Loop over modules.  $extrasub must be used with care, limiting as
1725 # much as possible the usage of range addresses.  That's because autoconf
1726 # splits the sed script to overcome limits in the number of commands,
1727 # and relying on carefully-timed sed passes may turn out to be very hard
1728 # to maintain later.  In this particular case, you just have to be careful
1729 # not to nest @if/@endif pairs, because configure will not warn you at all.
1730
1731 AC_ARG_ENABLE([bootstrap],
1732 [  --enable-bootstrap[=lean]     Enable bootstrapping [no]],,
1733 enable_bootstrap=default)
1734
1735 # Issue errors and warnings for invalid/strange bootstrap combinations.
1736 case "$configdirs" in
1737   *gcc*) have_compiler=yes ;;
1738   *) have_compiler=no ;;
1739 esac
1740
1741 case "$have_compiler:$host:$target:$enable_bootstrap" in
1742   *:*:*:no) ;;
1743
1744   # Default behavior.  (We'll) enable bootstrap if we have a compiler
1745   # and we are in a native configuration.
1746   yes:$build:$build:default)
1747     # This will become 'yes'
1748     enable_bootstrap=no ;;
1749
1750   *:*:*:default)
1751     enable_bootstrap=no ;;
1752
1753   # We have a compiler and we are in a native configuration, bootstrap is ok
1754   yes:$build:$build:yes | yes:$build:$build:lean)
1755     ;;
1756
1757   # Other configurations, but we have a compiler.  Assume the user knows
1758   # what he's doing.
1759   yes:*:*:yes | yes:*:*:lean)
1760     AC_MSG_WARN([trying to bootstrap a cross compiler])
1761     ;;
1762
1763   # No compiler: if they passed --enable-bootstrap explicitly, fail
1764   no:*:*:yes | no:*:*:lean)
1765     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1766
1767   # Fail if wrong command line
1768   *)
1769     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1770     ;;
1771 esac
1772
1773 # Adjust the toplevel makefile according to whether bootstrap was selected.
1774 case "$enable_bootstrap" in
1775   yes)
1776     bootstrap_lean='#'
1777     default_target=bootstrap
1778     bootstrap_suffix=bootstrap ;;
1779   lean)
1780     bootstrap_lean=''
1781     default_target=bootstrap
1782     bootstrap_suffix=bootstrap ;;
1783   no)
1784     default_target=all
1785     bootstrap_suffix=no-bootstrap ;;
1786 esac
1787 AC_SUBST(bootstrap_lean)
1788 AC_SUBST(default_target)
1789
1790 for module in ${build_configdirs} ; do
1791   if test -z "${no_recursion}" \
1792      && test -f ${build_subdir}/${module}/Makefile; then
1793     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1794     rm -f ${build_subdir}/${module}/Makefile
1795   fi
1796   extrasub="$extrasub
1797 /^@if build-$module\$/d
1798 /^@endif build-$module\$/d
1799 /^@if build-$module-$bootstrap_suffix\$/d
1800 /^@endif build-$module-$bootstrap_suffix\$/d"
1801 done
1802 for module in ${configdirs} ; do
1803   if test -z "${no_recursion}" \
1804      && test -f ${module}/Makefile; then
1805     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1806     rm -f ${module}/Makefile
1807   fi
1808   extrasub="$extrasub
1809 /^@if $module\$/d
1810 /^@endif $module\$/d
1811 /^@if $module-$bootstrap_suffix\$/d
1812 /^@endif $module-$bootstrap_suffix\$/d"
1813 done
1814 for module in ${target_configdirs} ; do
1815   if test -z "${no_recursion}" \
1816      && test -f ${target_subdir}/${module}/Makefile; then
1817     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1818     rm -f ${target_subdir}/${module}/Makefile
1819   fi
1820   extrasub="$extrasub
1821 /^@if target-$module\$/d
1822 /^@endif target-$module\$/d
1823 /^@if target-$module-$bootstrap_suffix\$/d
1824 /^@endif target-$module-$bootstrap_suffix\$/d"
1825 done
1826
1827 extrasub="$extrasub
1828 /^@if /,/^@endif /d"
1829
1830 # Create the serialization dependencies.  This uses a temporary file.
1831
1832 AC_ARG_ENABLE([serial-configure],
1833 [  --enable-serial-[{host,target,build}-]configure
1834                           Force sequential configuration of
1835                           sub-packages for the host, target or build
1836                           machine, or all sub-packages])
1837
1838 case ${enable_serial_configure} in
1839   yes)
1840     enable_serial_build_configure=yes
1841     enable_serial_host_configure=yes
1842     enable_serial_target_configure=yes
1843     ;;
1844 esac
1845
1846 # These force 'configure's to be done one at a time, to avoid problems
1847 # with contention over a shared config.cache.
1848 rm -f serdep.tmp
1849 echo '# serdep.tmp' > serdep.tmp
1850 olditem=
1851 test "x${enable_serial_build_configure}" = xyes &&
1852 for item in ${build_configdirs} ; do
1853   case ${olditem} in
1854     "") ;;
1855     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1856   esac
1857   olditem=${item}
1858 done
1859 olditem=
1860 test "x${enable_serial_host_configure}" = xyes &&
1861 for item in ${configdirs} ; do
1862   case ${olditem} in
1863     "") ;;
1864     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1865   esac
1866   olditem=${item}
1867 done
1868 olditem=
1869 test "x${enable_serial_target_configure}" = xyes &&
1870 for item in ${target_configdirs} ; do
1871   case ${olditem} in
1872     "") ;;
1873     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1874   esac
1875   olditem=${item}
1876 done
1877 serialization_dependencies=serdep.tmp
1878 AC_SUBST_FILE(serialization_dependencies)
1879
1880 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1881 # target and nonopt.  These are the ones we might not want to pass
1882 # down to subconfigures.  Also strip program-prefix, program-suffix,
1883 # and program-transform-name, so that we can pass down a consistent
1884 # program-transform-name.  If autoconf has put single quotes around
1885 # any of these arguments (because they contain shell metacharacters)
1886 # then this will fail; in practice this only happens for
1887 # --program-transform-name, so be sure to override --program-transform-name
1888 # at the end of the argument list.
1889 # These will be expanded by make, so quote '$'.
1890 cat <<\EOF_SED > conftestsed
1891 s/ --no[[^ ]]*/ /g
1892 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1893 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1894 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1895 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1896 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1897 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1898 s/ -cache-file[[= ]][[^ ]]*//g
1899 s/ -srcdir[[= ]][[^ ]]*//g
1900 s/ -host[[= ]][[^ ]]*//g
1901 s/ -build[[= ]][[^ ]]*//g
1902 s/ -target[[= ]][[^ ]]*//g
1903 s/ -program-prefix[[= ]][[^ ]]*//g
1904 s/ -program-suffix[[= ]][[^ ]]*//g
1905 s/ -program-transform-name[[= ]][[^ ]]*//g
1906 s/ [[^' -][^ ]*] / /
1907 s/^ *//;s/ *$//
1908 s,\$,$$,g
1909 EOF_SED
1910 sed -f conftestsed <<EOF_SED > conftestsed.out
1911  ${ac_configure_args}
1912 EOF_SED
1913 baseargs=`cat conftestsed.out`
1914 rm -f conftestsed conftestsed.out
1915
1916 # Add in --program-transform-name, after --program-prefix and
1917 # --program-suffix have been applied to it.  Autoconf has already
1918 # doubled dollar signs and backslashes in program_transform_name; we want
1919 # the backslashes un-doubled, and then the entire thing wrapped in single
1920 # quotes, because this will be expanded first by make and then by the shell.
1921 # Also, because we want to override the logic in subdir configure scripts to
1922 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1923 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1924 ${program_transform_name}
1925 EOF_SED
1926 gcc_transform_name=`cat conftestsed.out`
1927 rm -f conftestsed.out
1928 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1929
1930 # For the build-side libraries, we just need to pretend we're native,
1931 # and not use the same cache file.  Multilibs are neither needed nor
1932 # desired.
1933 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
1934
1935 # For host modules, accept cache file option, or specification as blank.
1936 case "${cache_file}" in
1937 "") # empty
1938   cache_file_option="" ;;
1939 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1940   cache_file_option="--cache-file=${cache_file}" ;;
1941 *) # relative path
1942   cache_file_option="--cache-file=../${cache_file}" ;;
1943 esac
1944
1945 # Host dirs don't like to share a cache file either, horribly enough.
1946 # This seems to be due to autoconf 2.5x stupidity.
1947 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1948
1949 target_configargs=${baseargs}
1950
1951 # Passing a --with-cross-host argument lets the target libraries know
1952 # whether they are being built with a cross-compiler or being built
1953 # native.  However, it would be better to use other mechanisms to make the
1954 # sorts of decisions they want to make on this basis.  Please consider
1955 # this option to be deprecated.  FIXME.
1956 if test x${is_cross_compiler} = xyes ; then
1957   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1958 fi
1959
1960 # Default to --enable-multilib.
1961 if test x${enable_multilib} = x ; then
1962   target_configargs="--enable-multilib ${target_configargs}"
1963 fi
1964
1965 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1966 # changed from the earlier setting of with_newlib.
1967 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1968   target_configargs="--with-newlib ${target_configargs}"
1969 fi
1970
1971 # Different target subdirs use different values of certain variables
1972 # (notably CXX).  Worse, multilibs use *lots* of different values.
1973 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1974 # it doesn't automatically accept command-line overrides of them.
1975 # This means it's not safe for target subdirs to share a cache file,
1976 # which is disgusting, but there you have it.  Hopefully this can be
1977 # fixed in future.  It's still worthwhile to use a cache file for each
1978 # directory.  I think.
1979
1980 # Pass the appropriate --build, --host, --target and --cache-file arguments.
1981 # We need to pass --target, as newer autoconf's requires consistency
1982 # for target_alias and gcc doesn't manage it consistently.
1983 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
1984
1985 FLAGS_FOR_TARGET=
1986 case " $target_configdirs " in
1987  *" newlib "*)
1988   case " $target_configargs " in
1989   *" --with-newlib "*)
1990    case "$target" in
1991    *-cygwin*)
1992      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' ;;
1993    esac
1994
1995    # If we're not building GCC, don't discard standard headers.
1996    if test -d ${srcdir}/gcc; then
1997      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1998
1999      if test "${build}" != "${host}"; then
2000        # On Canadian crosses, CC_FOR_TARGET will have already been set
2001        # by `configure', so we won't have an opportunity to add -Bgcc/
2002        # to it.  This is right: we don't want to search that directory
2003        # for binaries, but we want the header files in there, so add
2004        # them explicitly.
2005        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2006
2007        # Someone might think of using the pre-installed headers on
2008        # Canadian crosses, in case the installed compiler is not fully
2009        # compatible with the compiler being built.  In this case, it
2010        # would be better to flag an error than risking having
2011        # incompatible object files being constructed.  We can't
2012        # guarantee that an error will be flagged, but let's hope the
2013        # compiler will do it, when presented with incompatible header
2014        # files.
2015      fi
2016    fi
2017
2018    case "${target}-${is_cross_compiler}" in
2019    i[[3456789]]86-*-linux*-no)
2020       # Here host == target, so we don't need to build gcc,
2021       # so we don't want to discard standard headers.
2022       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2023       ;;
2024    *)
2025       # If we're building newlib, use its generic headers last, but search
2026       # for any libc-related directories first (so make it the last -B
2027       # switch).
2028       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2029       ;;
2030    esac
2031    ;;
2032   esac
2033   ;;
2034 esac
2035
2036 # Allow the user to override the flags for
2037 # our build compiler if desired.
2038 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2039
2040 # On Canadian crosses, we'll be searching the right directories for
2041 # the previously-installed cross compiler, so don't bother to add
2042 # flags for directories within the install tree of the compiler
2043 # being built; programs in there won't even run.
2044 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2045   # Search for pre-installed headers if nothing else fits.
2046   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2047 fi
2048
2049 if test "x${use_gnu_ld}" = x &&
2050    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2051   # Arrange for us to find uninstalled linker scripts.
2052   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2053 fi
2054
2055 # Makefile fragments.
2056 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2057 do
2058   eval fragval=\$$frag
2059   if test $fragval != /dev/null; then
2060     eval $frag=${srcdir}/$fragval
2061   fi
2062 done
2063 AC_SUBST_FILE(host_makefile_frag)
2064 AC_SUBST_FILE(target_makefile_frag)
2065 AC_SUBST_FILE(alphaieee_frag)
2066 AC_SUBST_FILE(ospace_frag)
2067
2068 # Miscellanea: directories, flags, etc.
2069 AC_SUBST(RPATH_ENVVAR)
2070 AC_SUBST(BUILD_PREFIX)
2071 AC_SUBST(BUILD_PREFIX_1)
2072 AC_SUBST(tooldir)
2073 AC_SUBST(build_tooldir)
2074 AC_SUBST(GDB_TK)
2075
2076 # Build module lists & subconfigure args.
2077 AC_SUBST(build_configargs)
2078 AC_SUBST(build_configdirs)
2079
2080 # Host module lists & subconfigure args.
2081 AC_SUBST(host_configargs)
2082 AC_SUBST(configdirs)
2083
2084 # Target module lists & subconfigure args.
2085 AC_SUBST(target_configargs)
2086 AC_SUBST(target_configdirs)
2087
2088 # Build tools.
2089 AC_SUBST(CC_FOR_BUILD)
2090 AC_SUBST(config_shell)
2091
2092 # Host tools.
2093 NCN_STRICT_CHECK_TOOLS(AR, ar)
2094 NCN_STRICT_CHECK_TOOLS(AS, as)
2095 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2096 NCN_STRICT_CHECK_TOOLS(LD, ld)
2097 NCN_STRICT_CHECK_TOOLS(NM, nm)
2098 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2099 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2100 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2101 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2102 AC_SUBST(CC)
2103 AC_SUBST(CXX)
2104 AC_SUBST(CFLAGS)
2105 AC_SUBST(CFLAGS_FOR_BUILD)
2106 AC_SUBST(CXXFLAGS)
2107
2108 # Target tools.  Do the tests using the names they may have passed in
2109 # the environment, then move it to CONFIGURED_*_FOR_TARGET.
2110 NCN_STRICT_CHECK_TARGET_TOOLS(AR_FOR_TARGET, ar)
2111 NCN_STRICT_CHECK_TARGET_TOOLS(AS_FOR_TARGET, as)
2112 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2113 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2114 NCN_STRICT_CHECK_TARGET_TOOLS(DLLTOOL_FOR_TARGET, dlltool)
2115 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2116 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2117 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2118 NCN_STRICT_CHECK_TARGET_TOOLS(LD_FOR_TARGET, ld)
2119 NCN_STRICT_CHECK_TARGET_TOOLS(NM_FOR_TARGET, nm)
2120 NCN_STRICT_CHECK_TARGET_TOOLS(RANLIB_FOR_TARGET, ranlib, :)
2121 NCN_STRICT_CHECK_TARGET_TOOLS(WINDRES_FOR_TARGET, windres)
2122
2123 CONFIGURED_AR_FOR_TARGET="$AR_FOR_TARGET"
2124 CONFIGURED_AS_FOR_TARGET="$AS_FOR_TARGET"
2125 CONFIGURED_CC_FOR_TARGET="$CC_FOR_TARGET"
2126 CONFIGURED_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2127 CONFIGURED_DLLTOOL_FOR_TARGET="$DLLTOOL_FOR_TARGET"
2128 CONFIGURED_GCC_FOR_TARGET="$GCC_FOR_TARGET"
2129 CONFIGURED_GCJ_FOR_TARGET="$GCJ_FOR_TARGET"
2130 CONFIGURED_GFORTRAN_FOR_TARGET="$GFORTRAN_FOR_TARGET"
2131 CONFIGURED_LD_FOR_TARGET="$LD_FOR_TARGET"
2132 CONFIGURED_NM_FOR_TARGET="$NM_FOR_TARGET"
2133 CONFIGURED_RANLIB_FOR_TARGET="$RANLIB_FOR_TARGET"
2134 CONFIGURED_WINDRES_FOR_TARGET="$WINDRES_FOR_TARGET"
2135
2136 AC_SUBST(CONFIGURED_AR_FOR_TARGET)dnl
2137 AC_SUBST(CONFIGURED_AS_FOR_TARGET)dnl
2138 AC_SUBST(CONFIGURED_CC_FOR_TARGET)dnl
2139 AC_SUBST(CONFIGURED_CXX_FOR_TARGET)dnl
2140 AC_SUBST(CONFIGURED_DLLTOOL_FOR_TARGET)dnl
2141 AC_SUBST(CONFIGURED_GCC_FOR_TARGET)dnl
2142 AC_SUBST(CONFIGURED_GCJ_FOR_TARGET)dnl
2143 AC_SUBST(CONFIGURED_GFORTRAN_FOR_TARGET)dnl
2144 AC_SUBST(CONFIGURED_LD_FOR_TARGET)dnl
2145 AC_SUBST(CONFIGURED_NM_FOR_TARGET)dnl
2146 AC_SUBST(CONFIGURED_RANLIB_FOR_TARGET)dnl
2147 AC_SUBST(CONFIGURED_WINDRES_FOR_TARGET)dnl
2148 AC_SUBST(FLAGS_FOR_TARGET)
2149
2150 # Fix up target tools.
2151 if test "x${build}" = "x${host}" ; then
2152   # In this case, the newly built tools can and should be used,
2153   # so we override the results of the autoconf tests.
2154   # This should really only happen when the tools are actually being built,
2155   # but that's a further refinement.  The new build scheme, where
2156   # tools are built into a structure paralleling where they're installed,
2157   # should also eliminate all of this cleanly.
2158   AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
2159   AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
2160   CC_FOR_TARGET="\$(USUAL_CC_FOR_TARGET)"
2161   CXX_FOR_TARGET="\$(USUAL_CXX_FOR_TARGET)"
2162   RAW_CXX_FOR_TARGET="\$(USUAL_RAW_CXX_FOR_TARGET)"
2163   DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
2164   GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
2165   GCJ_FOR_TARGET="\$(USUAL_GCJ_FOR_TARGET)"
2166   GFORTRAN_FOR_TARGET="\$(USUAL_GFORTRAN_FOR_TARGET)"
2167   LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
2168   NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
2169   RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
2170   WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
2171 else
2172   # Just use the ones we found.
2173   AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)"
2174   AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)"
2175   CC_FOR_TARGET="\$(CONFIGURED_CC_FOR_TARGET)"
2176   CXX_FOR_TARGET="\$(CONFIGURED_CXX_FOR_TARGET)"
2177   RAW_CXX_FOR_TARGET="\$(CONFIGURED_CXX_FOR_TARGET)"
2178   DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)"
2179   GCC_FOR_TARGET="\$(CONFIGURED_GCC_FOR_TARGET)"
2180   GCJ_FOR_TARGET="\$(CONFIGURED_GCJ_FOR_TARGET)"
2181   GFORTRAN_FOR_TARGET="\$(CONFIGURED_GFORTRAN_FOR_TARGET)"
2182   LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)"
2183   NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)"
2184   RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)"
2185   WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)"
2186 fi
2187
2188 AC_SUBST(RAW_CXX_FOR_TARGET)
2189
2190 # Certain tools may need extra flags.
2191 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2192 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2193 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2194
2195 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2196 AC_ARG_ENABLE(maintainer-mode,
2197 [  --enable-maintainer-mode enable make rules and dependencies not useful
2198                           (and sometimes confusing) to the casual installer],
2199       USE_MAINTAINER_MODE=$enableval,
2200       USE_MAINTAINER_MODE=no)
2201 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2202 AC_SUBST(MAINTAINER_MODE_TRUE)
2203 AC_SUBST(MAINTAINER_MODE_FALSE)
2204 if test "$USE_MAINTAINER_MODE" = yes; then
2205   MAINTAINER_MODE_TRUE=
2206   MAINTAINER_MODE_FALSE='#'
2207 else
2208   MAINTAINER_MODE_TRUE='#'
2209   MAINTAINER_MODE_FALSE=
2210 fi
2211 MAINT=$MAINTAINER_MODE_TRUE
2212 AC_SUBST(MAINT)dnl
2213
2214 # ---------------------
2215 # GCC bootstrap support
2216 # ---------------------
2217
2218 # Stage specific cflags for build.
2219 stage1_cflags="-g"
2220 case $build in
2221   vax-*-*)
2222     case ${GCC} in
2223       yes) stage1_cflags="-g -Wa,-J" ;;
2224       *) stage1_cflags="-g -J" ;;
2225     esac ;;
2226   powerpc-*-darwin*)
2227     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2228     # sources; use -no-cpp-precomp to get to GNU cpp.
2229     # Apple's GCC has bugs in designated initializer handling, so disable
2230     # that too.
2231     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2232     ;;
2233 esac
2234 AC_SUBST(stage1_cflags)
2235
2236 # It makes debugging easier if we create as symlinks the stage directories
2237 # gcc for stageN-gcc and stagePREV-gcc for stage(N-1).  In case this is not
2238 # possible, however, we can resort to mv.
2239 AC_CACHE_CHECK([if symbolic links between directories work],
2240 [gcc_cv_prog_ln_s_dir],
2241 [if test "${LN_S}" = "ln -s" \
2242    && mkdir confdir.s1 \
2243    && ln -s confdir.s1 confdir.s2 \
2244    && echo timestamp1 > confdir.s1/conftest.1 \
2245    && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
2246    && echo timestamp2 > confdir.s2/conftest.2 \
2247    && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
2248    && rm -f confdir.s2; then
2249   gcc_cv_prog_ln_s_dir=yes
2250 else
2251   gcc_cv_prog_ln_s_dir=no
2252 fi
2253 rm -rf confdir.s1 confdir.s2])
2254
2255 case ${gcc_cv_prog_ln_s_dir} in
2256   yes)
2257     CREATE_LINK_TO_DIR='ln -s $$1 $$2'
2258     UNDO_LINK_TO_DIR='rm -f $$1' ;;
2259   *)
2260     CREATE_LINK_TO_DIR='mv $$1 $$2'
2261     UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
2262 esac
2263 AC_SUBST(CREATE_LINK_TO_DIR)
2264 AC_SUBST(UNDO_LINK_TO_DIR)
2265
2266 # Enable -Werror in bootstrap stage2 and later.
2267 # Change the default to "no" on release branches.
2268 AC_ARG_ENABLE(werror,
2269 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2270 [enable_werror=yes])
2271 case ${enable_werror} in
2272   yes) stage2_werror_flag="--enable-werror-always" ;;
2273   *) stage2_werror_flag="" ;;
2274 esac
2275 AC_SUBST(stage2_werror_flag)
2276
2277 AC_OUTPUT(Makefile)