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-libssp \
 151                 target-libgfortran \
 152                 ${libgcj} \
 153                 target-libobjc \
 154                 target-libada"
 155
 156 # these tools are built using the target libraries, and are intended to
 157 # run only in the target environment
 158 #
 159 # note: any program that *uses* libraries that are in the "target_libraries"
 160 # list belongs in this list.  those programs are also very likely
 161 # candidates for the "native_only" list which follows
 162 #
 163 target_tools="target-examples target-groff target-gperf target-rda"
 164
 165 ################################################################################
 166
 167 ## All tools belong in one of the four categories, and are assigned above
 168 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 169 ## is important because configure will choke if they ever get through.
 170 ## ${configdirs} is directories we build using the host tools.
 171 ## ${target_configdirs} is directories we build using the target tools.
 172 configdirs=`echo ${host_libs} ${host_tools}`
 173 target_configdirs=`echo ${target_libraries} ${target_tools}`
 174 build_configdirs=`echo ${build_libs} ${build_tools}`
 175
 176 ################################################################################
 177
 178 srcname="gnu development package"
 179
 180 # This gets set non-empty for some net releases of packages.
 181 appdirs=""
 182
 183 # Define is_cross_compiler to save on calls to 'test'.
 184 is_cross_compiler=
 185 if test x"${host}" = x"${target}" ; then
 186   is_cross_compiler=no
 187 else
 188   is_cross_compiler=yes
 189 fi
 190
 191 # Find the build and target subdir names.
 192 GCC_TOPLEV_SUBDIRS
 193
 194 # Skipdirs are removed silently.
 195 skipdirs=
 196 # Noconfigdirs are removed loudly.
 197 noconfigdirs=""
 198
 199 use_gnu_ld=
 200 # Make sure we don't let GNU ld be added if we didn't want it.
 201 if test x$with_gnu_ld = xno ; then
 202   use_gnu_ld=no
 203   noconfigdirs="$noconfigdirs ld"
 204 fi
 205
 206 use_gnu_as=
 207 # Make sure we don't let GNU as be added if we didn't want it.
 208 if test x$with_gnu_as = xno ; then
 209   use_gnu_as=no
 210   noconfigdirs="$noconfigdirs gas"
 211 fi
 212
 213 # some tools are so dependent upon X11 that if we're not building with X,
 214 # it's not even worth trying to configure, much less build, that tool.
 215
 216 case ${with_x} in
 217   yes | "") ;; # the default value for this tree is that X11 is available
 218   no)
 219     skipdirs="${skipdirs} tk itcl libgui"
 220     # We won't be able to build gdbtk without X.
 221     enable_gdbtk=no
 222     ;;
 223   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 224 esac
 225
 226 # Some tools are only suitable for building in a "native" situation.
 227 # Remove these if host!=target.
 228 native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff gprof target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
 229
 230 # Similarly, some are only suitable for cross toolchains.
 231 # Remove these if host=target.
 232 cross_only="target-libgloss target-newlib target-opcodes"
 233
 234 case $is_cross_compiler in
 235   no) skipdirs="${skipdirs} ${cross_only}" ;;
 236   yes) skipdirs="${skipdirs} ${native_only}" ;;
 237 esac
 238
 239 # If both --with-headers and --with-libs are specified, default to
 240 # --without-newlib.
 241 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 242    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 243   if test x"${with_newlib}" = x ; then
 244     with_newlib=no
 245   fi
 246 fi
 247
 248 # Recognize --with-newlib/--without-newlib.
 249 case ${with_newlib} in
 250   no) skipdirs="${skipdirs} target-newlib" ;;
 251   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 252 esac
 253
 254 # Configure extra directories which are host specific
 255
 256 case "${host}" in
 257   *-cygwin*)
 258     configdirs="$configdirs libtermcap" ;;
 259 esac
 260
 261 # A target can indicate whether a language isn't supported for some reason.
 262 # Only spaces may be used in this macro; not newlines or tabs.
 263 unsupported_languages=
 264
 265 # Remove more programs from consideration, based on the host or
 266 # target this usually means that a port of the program doesn't
 267 # exist yet.
 268
 269 case "${host}" in
 270   hppa*64*-*-*)
 271     noconfigdirs="$noconfigdirs byacc"
 272     ;;
 273   i[[3456789]]86-*-vsta)
 274     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 275     ;;
 276   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 277     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 278     ;;
 279   i[[3456789]]86-*-mingw32*)
 280     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 281     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 282     ;;
 283   i[[3456789]]86-*-beos*)
 284     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 285     ;;
 286   *-*-cygwin*)
 287     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 288     ;;
 289   *-*-netbsd*)
 290     noconfigdirs="$noconfigdirs rcs"
 291     ;;
 292   ppc*-*-pe)
 293     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 294     ;;
 295   powerpc-*-beos*)
 296     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 297     ;;
 298 esac
 299
 300
 301 AC_ARG_ENABLE(libada,
 302 [  --enable-libada        Builds libada directory],
 303 ENABLE_LIBADA=$enableval,
 304 ENABLE_LIBADA=yes)
 305 if test "${ENABLE_LIBADA}" != "yes" ; then
 306   noconfigdirs="$noconfigdirs target-libada"
 307   noconfigdirs="$noconfigdirs gnattools"
 308 fi
 309
 310 AC_ARG_ENABLE(libssp,
 311 [  --enable-libssp        Builds libssp directory],
 312 ENABLE_LIBSSP=$enableval,
 313 ENABLE_LIBSSP=yes)
 314 if test "${ENABLE_LIBSSP}" != "yes" ; then
 315   noconfigdirs="$noconfigdirs target-libssp"
 316 fi
 317
 318 # Save it here so that, even in case of --enable-libgcj, if the Java
 319 # front-end isn't enabled, we still get libgcj disabled.
 320 libgcj_saved=$libgcj
 321 case $enable_libgcj in
 322 yes)
 323   # If we reset it here, it won't get added to noconfigdirs in the
 324   # target-specific build rules, so it will be forcibly enabled
 325   # (unless the Java language itself isn't enabled).
 326   libgcj=
 327   ;;
 328 no)
 329   # Make sure we get it printed in the list of not supported target libs.
 330   noconfigdirs="$noconfigdirs ${libgcj}"
 331   ;;
 332 esac
 333
 334
 335 # Allow --disable-libmudflap to exclude target-libmudflap
 336 case $enable_libmudflap in
 337 yes)
 338     ;;
 339 no)
 340     noconfigdirs="$noconfigdirs target-libmudflap"
 341     ;;
 342 "")
 343     case "${target}" in
 344     *-*-linux*-gnu | *-*-gnu* | *-*-k*bsd*-gnu)
 345         # Enable libmudflap by default in GNU and friends.
 346         ;;
 347     *-*-freebsd*)
 348         # Enable libmudflap by default in FreeBSD.
 349         ;;
 350     *)
 351         # Disable it by default everywhere else.
 352         noconfigdirs="$noconfigdirs target-libmudflap"
 353         ;;
 354     esac
 355 esac
 356
 357
 358 case "${target}" in
 359   *-*-chorusos)
 360     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 361     ;;
 362   powerpc-*-darwin*)
 363     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 364     noconfigdirs="$noconfigdirs sim target-rda"
 365     ;;
 366   *-*-darwin*)
 367     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 368     noconfigdirs="$noconfigdirs sim target-rda"
 369     noconfigdirs="$noconfigdirs ${libgcj}"
 370     ;;
 371   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 372     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 373     ;;
 374   *-*-freebsd*)
 375     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 376     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 377         && test -f /usr/local/include/gmp.h; then
 378       with_gmp=/usr/local
 379     fi
 380
 381     # Skip some stuff that's unsupported on some FreeBSD configurations.
 382     case "${target}" in
 383       i*86-*-*) ;;
 384       alpha*-*-*) ;;
 385       *)
 386         noconfigdirs="$noconfigdirs ${libgcj}"
 387         ;;
 388     esac
 389     ;;
 390   *-*-kaos*)
 391     # Remove unsupported stuff on all kaOS configurations.
 392     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 393     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 394     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 395     noconfigdirs="$noconfigdirs target-libgloss"
 396     ;;
 397   *-*-netbsd*)
 398     # Skip some stuff on all NetBSD configurations.
 399     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 400
 401     # Skip some stuff that's unsupported on some NetBSD configurations.
 402     case "${target}" in
 403       i*86-*-netbsdelf*) ;;
 404       arm*-*-netbsdelf*) ;;
 405       *)
 406         noconfigdirs="$noconfigdirs ${libgcj}"
 407         ;;
 408     esac
 409     ;;
 410   *-*-netware*)
 411     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 412     ;;
 413   *-*-rtems*)
 414     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 415     ;;
 416     # The tpf target doesn't support gdb yet.
 417   *-*-tpf*)
 418     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 419     ;;
 420   *-*-uclinux*)
 421     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 422     ;;
 423   *-*-vxworks*)
 424     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj}"
 425     ;;
 426   alpha*-dec-osf*)
 427     # ld works, but does not support shared libraries.
 428     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 429     # gas doesn't generate exception information.
 430     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 431     ;;
 432   alpha*-*-*vms*)
 433     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 434     ;;
 435   alpha*-*-linux*)
 436     # newlib is not 64 bit ready
 437     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 438     ;;
 439   alpha*-*-*)
 440     # newlib is not 64 bit ready
 441     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 442     ;;
 443   am33_2.0-*-linux*)
 444     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 445     ;;
 446   sh-*-linux*)
 447     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 448     ;;
 449   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 450     noconfigdirs="$noconfigdirs ${libgcj}"
 451     noconfigdirs="$noconfigdirs target-examples"
 452     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 453     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 454     noconfigdirs="$noconfigdirs expect dejagnu"
 455     # the C++ libraries don't build on top of CE's C libraries
 456     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 457     noconfigdirs="$noconfigdirs target-newlib"
 458     case "${host}" in
 459       *-*-cygwin*) ;; # keep gdb and readline
 460       *) noconfigdirs="$noconfigdirs gdb readline"
 461          ;;
 462     esac
 463     ;;
 464   arc-*-*)
 465     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 466     ;;
 467   arm-semi-aof )
 468     ;;
 469   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 470     noconfigdirs="$noconfigdirs ${libgcj}"
 471     ;;
 472   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 473     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 474     ;;
 475   arm*-*-symbianelf*)
 476     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 477     ;;
 478   arm-*-pe*)
 479     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 480     ;;
 481   thumb-*-coff)
 482     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 483     ;;
 484   thumb-*-elf)
 485     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 486     ;;
 487   thumb-*-pe)
 488     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 489     ;;
 490   arm-*-riscix*)
 491     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 492     ;;
 493   avr-*-*)
 494     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 495     ;;
 496   c4x-*-* | tic4x-*-*)
 497     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 498     ;;
 499   c54x*-*-* | tic54x-*-*)
 500     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 501     ;;
 502   cris-*-* | crisv32-*-*)
 503     unsupported_languages="$unsupported_languages java"
 504     case "${target}" in
 505       *-*-aout)
 506         unsupported_languages="$unsupported_languages f95"
 507         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 508       *-*-elf)
 509         unsupported_languages="$unsupported_languages f95"
 510         noconfigdirs="$noconfigdirs target-boehm-gc";;
 511       *-*-linux*)
 512         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 513       *)
 514         unsupported_languages="$unsupported_languages f95"
 515         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 516     esac
 517     ;;
 518   crx-*-*)
 519     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 520     ;;
 521   d10v-*-*)
 522     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 523     ;;
 524   d30v-*-*)
 525     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 526     ;;
 527   fr30-*-elf*)
 528     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 529     ;;
 530   frv-*-*)
 531     noconfigdirs="$noconfigdirs ${libgcj}"
 532     ;;
 533   h8300*-*-*)
 534     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 535     ;;
 536   h8500-*-*)
 537     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 538     ;;
 539   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 540     ;;
 541   hppa*64*-*-linux* | parisc*64*-*-linux*)
 542     # In this case, it's because the hppa64-linux target is for
 543     # the kernel only at this point and has no libc, and thus no
 544     # headers, crt*.o, etc., all of which are needed by these.
 545     noconfigdirs="$noconfigdirs target-zlib"
 546     ;;
 547   parisc*-*-linux* | hppa*-*-linux*)
 548     ;;
 549   hppa*-*-*elf* | \
 550   hppa*-*-lites* | \
 551   hppa*-*-openbsd* | \
 552   hppa*64*-*-*)
 553     noconfigdirs="$noconfigdirs ${libgcj}"
 554     ;;
 555   hppa*-*-*)
 556     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 557     # build on HP-UX 10.20.
 558     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 559     ;;
 560   i960-*-*)
 561     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 562     ;;
 563   ia64*-*-elf*)
 564     # No gdb support yet.
 565     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 566     ;;
 567   ia64*-**-hpux*)
 568     # No gdb or ld support yet.
 569     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 570     ;;
 571   i370-*-opened*)
 572     ;;
 573   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 574     noconfigdirs="$noconfigdirs ${libgcj}"
 575     ;;
 576   i[[3456789]]86-*-linux*)
 577     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 578     # not build java stuff by default.
 579     case "${target}" in
 580       *-*-*libc1*)
 581         noconfigdirs="$noconfigdirs ${libgcj}";;
 582     esac
 583
 584     # This section makes it possible to build newlib natively on linux.
 585     # If we are using a cross compiler then don't configure newlib.
 586     if test x${is_cross_compiler} != xno ; then
 587       noconfigdirs="$noconfigdirs target-newlib"
 588     fi
 589     noconfigdirs="$noconfigdirs target-libgloss"
 590     # If we are not using a cross compiler, do configure newlib.
 591     # Note however, that newlib will only be configured in this situation
 592     # if the --with-newlib option has been given, because otherwise
 593     # 'target-newlib' will appear in skipdirs.
 594     ;;
 595   i[[3456789]]86-*-mingw32*)
 596     target_configdirs="$target_configdirs target-mingw"
 597     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 598
 599     # Can't build gdb for mingw32 if not native.
 600     case "${host}" in
 601       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 602       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 603          ;;
 604     esac
 605     ;;
 606   *-*-cygwin*)
 607     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 608     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 609     # always build newlib if winsup directory is present.
 610     if test -d "$srcdir/winsup"; then
 611       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 612     elif test -d "$srcdir/newlib"; then
 613       echo "Warning: winsup is missing so newlib can't be built."
 614     fi
 615
 616     # Can't build gdb for Cygwin if not native.
 617     case "${host}" in
 618       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 619       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 620          ;;
 621     esac
 622     ;;
 623   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 624   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 625     ;;
 626   i[[3456789]]86-*-pe)
 627     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 628     ;;
 629   i[[3456789]]86-*-sco3.2v5*)
 630     # The linker does not yet know about weak symbols in COFF,
 631     # and is not configured to handle mixed ELF and COFF.
 632     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 633     ;;
 634   i[[3456789]]86-*-sco*)
 635     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 636     ;;
 637   i[[3456789]]86-*-solaris2*)
 638     noconfigdirs="$noconfigdirs target-libgloss"
 639     ;;
 640   i[[3456789]]86-*-sysv4*)
 641     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 642     ;;
 643   i[[3456789]]86-*-beos*)
 644     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 645     ;;
 646   m32r-*-*)
 647     noconfigdirs="$noconfigdirs ${libgcj}"
 648     ;;
 649   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 650     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 651     ;;
 652   m68k-*-elf*)
 653     noconfigdirs="$noconfigdirs ${libgcj}"
 654     ;;
 655   m68k-*-coff*)
 656     noconfigdirs="$noconfigdirs ${libgcj}"
 657     ;;
 658   mcore-*-pe*)
 659   # The EPOC C++ environment does not support exceptions or rtti,
 660   # and so building libstdc++-v3 tends not to always work.
 661     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 662     ;;
 663   mmix-*-*)
 664     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 665     unsupported_languages="$unsupported_languages f95 java"
 666     ;;
 667   mn10200-*-*)
 668     noconfigdirs="$noconfigdirs ${libgcj}"
 669     ;;
 670   mn10300-*-*)
 671     noconfigdirs="$noconfigdirs ${libgcj}"
 672     ;;
 673   ms1-*-*)
 674     noconfigdirs="$noconfigdirs sim"
 675     ;;
 676   powerpc-*-aix*)
 677     # copied from rs6000-*-* entry
 678     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 679     ;;
 680   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 681     target_configdirs="$target_configdirs target-winsup"
 682     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 683     # always build newlib.
 684     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 685     ;;
 686     # This is temporary until we can link against shared libraries
 687   powerpcle-*-solaris*)
 688     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 689     ;;
 690   powerpc-*-beos*)
 691     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 692     ;;
 693   powerpc-*-eabi)
 694     noconfigdirs="$noconfigdirs ${libgcj}"
 695     ;;
 696   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 697     ;;
 698   rs6000-*-lynxos*)
 699     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 700     ;;
 701   rs6000-*-aix*)
 702     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 703     ;;
 704   rs6000-*-*)
 705     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 706     ;;
 707   m68k-apollo-*)
 708     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 709     ;;
 710   mips*-*-irix5*)
 711     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 712     ;;
 713   mips*-*-irix6*)
 714     # Linking libjava exceeds command-line length limits on at least
 715     # IRIX 6.2, but not on IRIX 6.5.
 716     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 717     # <oldham@codesourcery.com>
 718     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 719     ;;
 720   mips*-dec-bsd*)
 721     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 722     ;;
 723   mips*-*-bsd*)
 724     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 725     ;;
 726   mipstx39-*-*)
 727     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 728     ;;
 729   mips64*-*-linux*)
 730     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 731     ;;
 732   mips*-*-linux*)
 733     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 734     ;;
 735   mips*-*-*)
 736     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 737     ;;
 738   romp-*-*)
 739     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 740     ;;
 741   sh-*-* | sh64-*-*)
 742     case "${host}" in
 743       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 744       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 745       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 746       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 747     esac
 748     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 749     ;;
 750   sparc-*-elf*)
 751     noconfigdirs="$noconfigdirs ${libgcj}"
 752     ;;
 753   sparc64-*-elf*)
 754     noconfigdirs="$noconfigdirs ${libgcj}"
 755     ;;
 756   sparclite-*-*)
 757     noconfigdirs="$noconfigdirs ${libgcj}"
 758     ;;
 759   sparc-*-sunos4*)
 760     noconfigdirs="$noconfigdirs ${libgcj}"
 761     if test x${is_cross_compiler} != xno ; then
 762            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 763     else
 764            use_gnu_ld=no
 765     fi
 766     ;;
 767   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 768     noconfigdirs="$noconfigdirs ${libgcj}"
 769     ;;
 770   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 771     ;;
 772   v810-*-*)
 773     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 774     ;;
 775   v850-*-*)
 776     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 777     ;;
 778   v850e-*-*)
 779     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 780     ;;
 781   v850ea-*-*)
 782     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 783     ;;
 784   vax-*-vms)
 785     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 786     ;;
 787   vax-*-*)
 788     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 789     ;;
 790   xtensa-*-*)
 791     noconfigdirs="$noconfigdirs ${libgcj}"
 792     ;;
 793   ip2k-*-*)
 794     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 795     ;;
 796   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 797     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 798     ;;
 799   *-*-lynxos*)
 800     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 801     ;;
 802   *-*-*)
 803     noconfigdirs="$noconfigdirs ${libgcj}"
 804     ;;
 805 esac
 806
 807 # If we aren't building newlib, then don't build libgloss, since libgloss
 808 # depends upon some newlib header files.
 809 case "${noconfigdirs}" in
 810   *target-libgloss*) ;;
 811   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 812 esac
 813
 814 # Work in distributions that contain no compiler tools, like Autoconf.
 815 tentative_cc=""
 816 host_makefile_frag=/dev/null
 817 if test -d ${srcdir}/config ; then
 818 case "${host}" in
 819   m68k-hp-hpux*)
 820     # Avoid "too much defining" errors from HPUX compiler.
 821     tentative_cc="cc -Wp,-H256000"
 822     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 823     # If it's HP/UX ar, this should be harmless.
 824     RANLIB="ar ts"
 825     ;;
 826   m68k-apollo-sysv*)
 827     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 828     ;;
 829   m68k-apollo-bsd*)
 830     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 831     # chokes on bfd, the compiler won't let you assign integers to enums, and
 832     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 833     # the apollo compiler" (the preferred version of GCC could be called cc,
 834     # or whatever), but I'm not sure leaving CC as cc is any better...
 835     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 836     # Used to have BISON=yacc.
 837     tentative_cc=gcc
 838     ;;
 839   m88k-dg-dgux*)
 840     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 841     ;;
 842   m88k-harris-cxux*)
 843     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 844     tentative_cc="cc -Xa"
 845     host_makefile_frag="config/mh-cxux"
 846     ;;
 847   m88k-motorola-sysv*)
 848     ;;
 849   mips*-dec-ultrix*)
 850     tentative_cc="cc -Wf,-XNg1000"
 851     host_makefile_frag="config/mh-decstation"
 852     ;;
 853   mips*-nec-sysv4*)
 854     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 855     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 856     host_makefile_frag="config/mh-necv4"
 857     ;;
 858   mips*-sgi-irix4*)
 859     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 860     # environment.  Also bump switch table size so that cp-parse will
 861     # compile.  Bump string length limit so linker builds.
 862     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 863     ;;
 864   mips*-*-sysv4*)
 865     host_makefile_frag="config/mh-sysv4"
 866     ;;
 867   mips*-*-sysv*)
 868     # This is for a MIPS running RISC/os 4.52C.
 869
 870     # This is needed for GDB, but needs to be in the top-level make because
 871     # if a library is compiled with the bsd headers and gets linked with the
 872     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 873     # a different size).
 874     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 875     # known except to select the sysv environment.  Could we use /proc instead?
 876     # These "sysv environments" and "bsd environments" often end up being a pain.
 877     #
 878     # This is not part of CFLAGS because perhaps not all C compilers have this
 879     # option.
 880     tentative_cc="cc -systype sysv"
 881     ;;
 882   i370-ibm-opened*)
 883     tentative_cc="c89"
 884     ;;
 885   i[[3456789]]86-*-sysv5*)
 886     host_makefile_frag="config/mh-sysv5"
 887     ;;
 888   i[[3456789]]86-*-dgux*)
 889     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 890     host_makefile_frag="config/mh-dgux386"
 891     ;;
 892   i[[3456789]]86-ncr-sysv4.3*)
 893     # The MetaWare compiler will generate a copyright message unless you
 894     # turn it off by adding the -Hnocopyr flag.
 895     tentative_cc="cc -Hnocopyr"
 896     ;;
 897   i[[3456789]]86-ncr-sysv4*)
 898     # for an NCR 3000 (i486/SVR4) system.
 899     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 900     # This compiler not only emits obnoxious copyright messages every time
 901     # you run it, but it chokes and dies on a whole bunch of GNU source
 902     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 903     tentative_cc="/usr/ccs/ATT/cc"
 904     host_makefile_frag="config/mh-ncr3000"
 905     ;;
 906   i[[3456789]]86-*-sco3.2v5*)
 907     ;;
 908   i[[3456789]]86-*-sco*)
 909     # The native C compiler botches some simple uses of const.  Unfortunately,
 910     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 911     tentative_cc="cc -Dconst="
 912     host_makefile_frag="config/mh-sco"
 913     ;;
 914   i[[3456789]]86-*-udk*)
 915     host_makefile_frag="config/mh-sysv5"
 916     ;;
 917   i[[3456789]]86-*-solaris2*)
 918     host_makefile_frag="config/mh-sysv4"
 919     ;;
 920   i[[3456789]]86-*-msdosdjgpp*)
 921     host_makefile_frag="config/mh-djgpp"
 922     ;;
 923   *-cygwin*)
 924     host_makefile_frag="config/mh-cygwin"
 925     ;;
 926   *-mingw32*)
 927     ;;
 928   *-interix*)
 929     host_makefile_frag="config/mh-interix"
 930     ;;
 931   vax-*-ultrix2*)
 932     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 933     tentative_cc=gcc
 934     ;;
 935   *-*-solaris2*)
 936     host_makefile_frag="config/mh-solaris"
 937     ;;
 938   m68k-sun-sunos*)
 939     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 940     # without overflowing the jump tables (-J says to use a 32 bit table)
 941     tentative_cc="cc -J"
 942     ;;
 943   *-hp-hpux*)
 944     tentative_cc="cc -Wp,-H256000"
 945     ;;
 946   *-*-hiux*)
 947     tentative_cc="cc -Wp,-H256000"
 948     ;;
 949   rs6000-*-lynxos*)
 950     # /bin/cc is less than useful for our purposes.  Always use GCC
 951     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 952     host_makefile_frag="config/mh-lynxrs6k"
 953     ;;
 954   powerpc-*-darwin*)
 955     host_makefile_frag="config/mh-ppc-darwin"
 956     ;;
 957   *-*-lynxos*)
 958     # /bin/cc is less than useful for our purposes.  Always use GCC
 959     tentative_cc="/bin/gcc"
 960     ;;
 961   *-*-sysv4*)
 962     host_makefile_frag="config/mh-sysv4"
 963     ;;
 964   # This is placed last to prevent interfering with the cases above.
 965   i[[3456789]]86-*-*)
 966     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 967     host_makefile_frag="config/mh-x86omitfp"
 968     ;;
 969 esac
 970 fi
 971
 972 # If we aren't going to be using gcc, see if we can extract a definition
 973 # of CC from the fragment.
 974 # Actually, use the 'pre-extracted' version above.
 975 if test -z "${CC}" && test "${build}" = "${host}" ; then
 976   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 977   found=
 978   for dir in $PATH; do
 979     test -z "$dir" && dir=.
 980     if test -f $dir/gcc; then
 981       found=yes
 982       break
 983     fi
 984   done
 985   IFS="$save_ifs"
 986   if test -z "${found}" && test -n "${tentative_cc}" ; then
 987     CC=$tentative_cc
 988   fi
 989 fi
 990
 991 if test "${build}" != "${host}" ; then
 992   # If we are doing a Canadian Cross, in which the host and build systems
 993   # are not the same, we set reasonable default values for the tools.
 994
 995   CC=${CC-${host_alias}-gcc}
 996   CFLAGS=${CFLAGS-"-g -O2"}
 997   CXX=${CXX-${host_alias}-c++}
 998   CXXFLAGS=${CXXFLAGS-"-g -O2"}
 999   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1000   CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc}
1001   CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++}
1002   GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj}
1003   GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}}
1004   BUILD_PREFIX=${build_alias}-
1005   BUILD_PREFIX_1=${build_alias}-
1006
1007 else
1008   # Set reasonable default values for some tools even if not Canadian.
1009   # Of course, these are different reasonable default values, originally
1010   # specified directly in the Makefile.
1011   # We don't export, so that autoconf can do its job.
1012   # Note that all these settings are above the fragment inclusion point
1013   # in Makefile.in, so can still be overridden by fragments.
1014   # This is all going to change when we autoconfiscate...
1015
1016   CC_FOR_BUILD="\$(CC)"
1017   GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
1018   BUILD_PREFIX=
1019   BUILD_PREFIX_1=loser-
1020
1021   AC_PROG_CC
1022
1023   # We must set the default linker to the linker used by gcc for the correct
1024   # operation of libtool.  If LD is not defined and we are using gcc, try to
1025   # set the LD default to the ld used by gcc.
1026   if test -z "$LD"; then
1027     if test "$GCC" = yes; then
1028       case $build in
1029       *-*-mingw*)
1030         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1031       *)
1032         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1033       esac
1034       case $gcc_prog_ld in
1035       # Accept absolute paths.
1036       [[\\/]* | [A-Za-z]:[\\/]*)]
1037         LD="$gcc_prog_ld" ;;
1038       esac
1039     fi
1040   fi
1041
1042   CXX=${CXX-"c++"}
1043   CFLAGS=${CFLAGS-"-g"}
1044   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1045 fi
1046
1047 ACX_PROG_GNAT
1048 ACX_PROG_CMP_IGNORE_INITIAL
1049
1050 # Check for GMP and MPFR
1051 gmplibs=
1052 gmpinc=
1053 have_gmp=yes
1054 # Specify a location for mpfr
1055 # check for this first so it ends up on the link line before gmp.
1056 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1057
1058 if test "x$with_mpfr_dir" != x; then
1059   gmpinc="-I$with_mpfr_dir"
1060   gmplibs="$with_mpfr_dir/libmpfr.a"
1061 else
1062   gmplibs="-lmpfr"
1063 fi
1064
1065 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1066
1067 if test "x$with_mpfr" != x; then
1068   gmplibs="-L$with_mpfr/lib $gmplibs"
1069   gmpinc="-I$with_mpfr/include"
1070 fi
1071
1072 # Specify a location for gmp
1073 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1074
1075 if test "x$with_gmp_dir" != x; then
1076   gmpinc="$gmpinc -I$with_gmp_dir"
1077   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1078     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1079   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1080     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1081   fi
1082   # One of the later tests will catch the error if neither library is present.
1083 else
1084   gmplibs="$gmplibs -lgmp"
1085 fi
1086
1087 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1088
1089 if test "x$with_gmp" != x; then
1090   gmplibs="-L$with_gmp/lib $gmplibs"
1091   gmpinc="-I$with_gmp/include $gmpinc"
1092 fi
1093
1094 saved_CFLAGS="$CFLAGS"
1095 CFLAGS="$CFLAGS $gmpinc"
1096 # Check GMP actually works
1097 AC_MSG_CHECKING([for correct version of gmp.h])
1098 AC_TRY_COMPILE([#include "gmp.h"],[
1099 #if __GNU_MP_VERSION < 3
1100 choke me
1101 #endif
1102 ], [AC_MSG_RESULT([yes])],
1103   [AC_MSG_RESULT([no]); have_gmp=no])
1104
1105 if test x"$have_gmp" = xyes; then
1106   AC_MSG_CHECKING([for MPFR])
1107
1108   saved_LIBS="$LIBS"
1109   LIBS="$LIBS $gmplibs"
1110   AC_TRY_LINK([#include <gmp.h>
1111 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1112     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1113   LIBS="$saved_LIBS"
1114   CFLAGS="$saved_CFLAGS"
1115 fi
1116
1117 # Flags needed for both GMP and/or MPFR
1118 AC_SUBST(gmplibs)
1119 AC_SUBST(gmpinc)
1120
1121 # By default, C is the only stage 1 language.
1122 stage1_languages=c
1123 AC_SUBST(stage1_languages)
1124
1125 # Figure out what language subdirectories are present.
1126 # Look if the user specified --enable-languages="..."; if not, use
1127 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1128 # go away some day.
1129 # NB:  embedded tabs in this IF block -- do not untabify
1130 if test -d ${srcdir}/gcc; then
1131   if test x"${enable_languages+set}" != xset; then
1132     if test x"${LANGUAGES+set}" = xset; then
1133       enable_languages="${LANGUAGES}"
1134         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1135     else
1136       enable_languages=all
1137     fi
1138   else
1139     if test x"${enable_languages}" = x ||
1140        test x"${enable_languages}" = xyes;
1141        then
1142       echo configure.in: --enable-languages needs at least one language argument 1>&2
1143       exit 1
1144     fi
1145   fi
1146   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1147
1148   # First scan to see if an enabled language requires some other language.
1149   # We assume that a given config-lang.in will list all the language
1150   # front ends it requires, even if some are required indirectly.
1151   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1152     case ${lang_frag} in
1153       ..) ;;
1154       # The odd quoting in the next line works around
1155       # an apparent bug in bash 1.12 on linux.
1156       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1157       *)
1158         # From the config-lang.in, get $language, $lang_requires
1159         language=
1160         lang_requires=
1161         . ${lang_frag}
1162         for other in ${lang_requires} ; do
1163           case ,${enable_languages}, in
1164             *,$other,*) ;;
1165             *,all,*) ;;
1166             *,$language,*)
1167               echo " \`$other' language required by \`$language'; enabling" 1>&2
1168               enable_languages="${enable_languages},${other}"
1169               ;;
1170           esac
1171         done
1172         ;;
1173     esac
1174   done
1175
1176   new_enable_languages=c
1177   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1178   potential_languages=c
1179
1180   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1181     case ${lang_frag} in
1182       ..) ;;
1183       # The odd quoting in the next line works around
1184       # an apparent bug in bash 1.12 on linux.
1185       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1186       *)
1187         # From the config-lang.in, get $language, $target_libs,
1188         # $lang_dirs, $boot_language, and $build_by_default
1189         language=
1190         target_libs=
1191         lang_dirs=
1192         boot_language=
1193         build_by_default=
1194         need_gmp=
1195         . ${lang_frag}
1196         potential_languages="${potential_languages},${language}"
1197         # This is quite sensitive to the ordering of the case statement arms.
1198         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1199           *::*:*)
1200             echo "${lang_frag} doesn't set \$language." 1>&2
1201             exit 1
1202             ;;
1203           *:ada:no:*)
1204             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1205             add_this_lang=no
1206             ;;
1207           *,${language},*:*:*:*)
1208             # Language was explicitly selected; include it.
1209             add_this_lang=yes
1210             ;;
1211           *,all,*:*:*:no)
1212             # 'all' was selected, but this is not a default language
1213             # so do not include it.
1214             add_this_lang=no
1215             ;;
1216           *,all,*:*:*:*)
1217             # 'all' was selected and this is a default language; include it.
1218             add_this_lang=yes
1219             ;;
1220           *)
1221             add_this_lang=no
1222             ;;
1223         esac
1224
1225         # Disable languages that need GMP if it isn't available.
1226         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1227           *,${language},*:no:yes)
1228             # Specifically requested language; tell them.
1229             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1230             ;;
1231           *:no:yes)
1232             # Silently disable.
1233             add_this_lang=no
1234             ;;
1235         esac
1236
1237         # Disable a language that is unsupported by the target.
1238         case " $unsupported_languages " in
1239           *" $language "*)
1240             add_this_lang=no
1241             ;;
1242         esac
1243
1244         case $add_this_lang in
1245           no)
1246             # Remove language-dependent dirs.
1247             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1248             ;;
1249           *)
1250             new_enable_languages="$new_enable_languages,$language"
1251             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1252             case ${boot_language} in
1253               yes)
1254                 # Add to (comma-separated) list of stage 1 languages.
1255                 stage1_languages="${stage1_languages},${language}"
1256                 ;;
1257             esac
1258             ;;
1259         esac
1260         ;;
1261     esac
1262   done
1263
1264   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1265   if test "x$missing_languages" != x; then
1266     AC_MSG_ERROR([
1267 The following requested languages could not be built: ${missing_languages}
1268 Recognised languages are: ${potential_languages}])
1269   fi
1270
1271   if test "x$new_enable_languages" != "x$enable_languages"; then
1272     echo The following languages will be built: ${new_enable_languages}
1273   fi
1274   enable_languages="$new_enable_languages"
1275   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1276 fi
1277
1278 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1279 # $build_configdirs and $target_configdirs.
1280 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1281
1282 notsupp=""
1283 for dir in . $skipdirs $noconfigdirs ; do
1284   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1285   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1286     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1287     if test -r $srcdir/$dirname/configure ; then
1288       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1289         true
1290       else
1291         notsupp="$notsupp $dir"
1292       fi
1293     fi
1294   fi
1295   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1296     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1297     if test -r $srcdir/$dirname/configure ; then
1298       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1299         true
1300       else
1301         notsupp="$notsupp $dir"
1302       fi
1303     fi
1304   fi
1305   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1306     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1307     if test -r $srcdir/$dirname/configure ; then
1308       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1309         true
1310       else
1311         notsupp="$notsupp $dir"
1312       fi
1313     fi
1314   fi
1315 done
1316
1317 # Sometimes the tools are distributed with libiberty but with no other
1318 # libraries.  In that case, we don't want to build target-libiberty.
1319 if test -n "${target_configdirs}" ; then
1320   others=
1321   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1322     if test "$i" != "libiberty" ; then
1323       if test -r $srcdir/$i/configure ; then
1324         others=yes;
1325         break;
1326       fi
1327     fi
1328   done
1329   if test -z "${others}" ; then
1330     target_configdirs=
1331   fi
1332 fi
1333
1334 # Quietly strip out all directories which aren't configurable in this tree.
1335 # This relies on all configurable subdirectories being autoconfiscated, which
1336 # is now the case.
1337 build_configdirs_all="$build_configdirs"
1338 build_configdirs=
1339 for i in ${build_configdirs_all} ; do
1340   j=`echo $i | sed -e s/build-//g`
1341   if test -f ${srcdir}/$j/configure ; then
1342     build_configdirs="${build_configdirs} $i"
1343   fi
1344 done
1345
1346 configdirs_all="$configdirs"
1347 configdirs=
1348 for i in ${configdirs_all} ; do
1349   if test -f ${srcdir}/$i/configure ; then
1350     configdirs="${configdirs} $i"
1351   fi
1352 done
1353
1354 target_configdirs_all="$target_configdirs"
1355 target_configdirs=
1356 for i in ${target_configdirs_all} ; do
1357   j=`echo $i | sed -e s/target-//g`
1358   if test -f ${srcdir}/$j/configure ; then
1359     target_configdirs="${target_configdirs} $i"
1360   fi
1361 done
1362
1363 # Produce a warning message for the subdirs we can't configure.
1364 # This isn't especially interesting in the Cygnus tree, but in the individual
1365 # FSF releases, it's important to let people know when their machine isn't
1366 # supported by the one or two programs in a package.
1367
1368 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1369   # If $appdirs is non-empty, at least one of those directories must still
1370   # be configured, or we error out.  (E.g., if the gas release supports a
1371   # specified target in some subdirs but not the gas subdir, we shouldn't
1372   # pretend that all is well.)
1373   if test -n "$appdirs" ; then
1374     for dir in $appdirs ; do
1375       if test -r $dir/Makefile.in ; then
1376         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1377           appdirs=""
1378           break
1379         fi
1380         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1381           appdirs=""
1382           break
1383         fi
1384       fi
1385     done
1386     if test -n "$appdirs" ; then
1387       echo "*** This configuration is not supported by this package." 1>&2
1388       exit 1
1389     fi
1390   fi
1391   # Okay, some application will build, or we don't care to check.  Still
1392   # notify of subdirs not getting built.
1393   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1394   echo "    ${notsupp}" 1>&2
1395   echo "    (Any other directories should still work fine.)" 1>&2
1396 fi
1397
1398 case "$host" in
1399   *msdosdjgpp*)
1400     enable_gdbtk=no ;;
1401 esac
1402
1403 copy_dirs=
1404
1405 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1406 # the named directory are copied to $(tooldir)/sys-include.
1407 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1408   if test x${is_cross_compiler} = xno ; then
1409     echo 1>&2 '***' --with-headers is only supported when cross compiling
1410     exit 1
1411   fi
1412   if test x"${with_headers}" != xyes ; then
1413     case "${exec_prefixoption}" in
1414     "") x=${prefix} ;;
1415     *) x=${exec_prefix} ;;
1416     esac
1417     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1418   fi
1419 fi
1420
1421 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1422 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1423 # are permitted.
1424 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1425   if test x${is_cross_compiler} = xno ; then
1426     echo 1>&2 '***' --with-libs is only supported when cross compiling
1427     exit 1
1428   fi
1429   if test x"${with_libs}" != xyes ; then
1430     # Copy the libraries in reverse order, so that files in the first named
1431     # library override files in subsequent libraries.
1432     case "${exec_prefixoption}" in
1433     "") x=${prefix} ;;
1434     *) x=${exec_prefix} ;;
1435     esac
1436     for l in ${with_libs}; do
1437       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1438     done
1439   fi
1440 fi
1441
1442 # Handle ${copy_dirs}
1443 set fnord ${copy_dirs}
1444 shift
1445 while test $# != 0 ; do
1446   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1447     :
1448   else
1449     echo Copying $1 to $2
1450
1451     # Use the install script to create the directory and all required
1452     # parent directories.
1453     if test -d $2 ; then
1454       :
1455     else
1456       echo >config.temp
1457       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1458     fi
1459
1460     # Copy the directory, assuming we have tar.
1461     # FIXME: Should we use B in the second tar?  Not all systems support it.
1462     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1463
1464     # It is the responsibility of the user to correctly adjust all
1465     # symlinks.  If somebody can figure out how to handle them correctly
1466     # here, feel free to add the code.
1467
1468     echo $1 > $2/COPIED
1469   fi
1470   shift; shift
1471 done
1472
1473 extra_arflags_for_target=
1474 extra_nmflags_for_target=
1475 extra_ranlibflags_for_target=
1476 target_makefile_frag=/dev/null
1477 case "${target}" in
1478   *-*-netware*)
1479     target_makefile_frag="config/mt-netware"
1480     ;;
1481   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1482     target_makefile_frag="config/mt-gnu"
1483     ;;
1484   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1485     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1486     # commands to handle both 32-bit and 64-bit objects.  These flags are
1487     # harmless if we're using GNU nm or ar.
1488     extra_arflags_for_target=" -X32_64"
1489     extra_nmflags_for_target=" -B -X32_64"
1490     ;;
1491   *-*-darwin*)
1492     # ranlib from Darwin requires the -c flag to look at common symbols.
1493     extra_ranlibflags_for_target=" -c"
1494     ;;
1495   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1496     target_makefile_frag="config/mt-wince"
1497     ;;
1498 esac
1499
1500 alphaieee_frag=/dev/null
1501 case $target in
1502   alpha*-*-*)
1503     # This just makes sure to use the -mieee option to build target libs.
1504     # This should probably be set individually by each library.
1505     alphaieee_frag="config/mt-alphaieee"
1506     ;;
1507 esac
1508
1509 # If --enable-target-optspace always use -Os instead of -O2 to build
1510 # the target libraries, similarly if it is not specified, use -Os
1511 # on selected platforms.
1512 ospace_frag=/dev/null
1513 case "${enable_target_optspace}:${target}" in
1514   yes:*)
1515     ospace_frag="config/mt-ospace"
1516     ;;
1517   :d30v-*)
1518     ospace_frag="config/mt-d30v"
1519     ;;
1520   :m32r-* | :d10v-* | :fr30-*)
1521     ospace_frag="config/mt-ospace"
1522     ;;
1523   no:* | :*)
1524     ;;
1525   *)
1526     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1527     ;;
1528 esac
1529
1530 # Set with_gnu_as and with_gnu_ld as appropriate.
1531 #
1532 # This is done by determining whether or not the appropriate directory
1533 # is available, and by checking whether or not specific configurations
1534 # have requested that this magic not happen.
1535 #
1536 # The command line options always override the explicit settings in
1537 # configure.in, and the settings in configure.in override this magic.
1538 #
1539 # If the default for a toolchain is to use GNU as and ld, and you don't
1540 # want to do that, then you should use the --without-gnu-as and
1541 # --without-gnu-ld options for the configure script.
1542
1543 if test x${use_gnu_as} = x &&
1544    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1545   with_gnu_as=yes
1546   extra_host_args="$extra_host_args --with-gnu-as"
1547 fi
1548
1549 if test x${use_gnu_ld} = x &&
1550    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1551   with_gnu_ld=yes
1552   extra_host_args="$extra_host_args --with-gnu-ld"
1553 fi
1554
1555 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1556 # can detect this case.
1557
1558 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1559   with_newlib=yes
1560   extra_host_args="$extra_host_args --with-newlib"
1561 fi
1562
1563 # Default to using --with-stabs for certain targets.
1564 if test x${with_stabs} = x ; then
1565   case "${target}" in
1566   mips*-*-irix[[56]]*)
1567     ;;
1568   mips*-*-* | alpha*-*-osf*)
1569     with_stabs=yes;
1570     extra_host_args="${extra_host_args} --with-stabs"
1571     ;;
1572   esac
1573 fi
1574
1575 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1576 # them automatically.
1577 case "${host}" in
1578   hppa*64*-*-hpux11*)
1579     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1580     ;;
1581 esac
1582
1583 # Some systems (e.g., one of the i386-aix systems the gas testers are
1584 # using) don't handle "\$" correctly, so don't use it here.
1585 tooldir='${exec_prefix}'/${target_alias}
1586 build_tooldir=${tooldir}
1587
1588 # Generate default definitions for YACC, M4, LEX and other programs that run
1589 # on the build machine.  These are used if the Makefile can't locate these
1590 # programs in objdir.
1591 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
1592 AC_CHECK_PROGS([CONFIGURED_BISON], [bison], [$MISSING bison])
1593 AC_CHECK_PROGS([CONFIGURED_YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
1594 AC_CHECK_PROGS([CONFIGURED_M4], [gm4 gnum4 m4], [$MISSING m4])
1595 AC_CHECK_PROGS([CONFIGURED_FLEX], [flex], [$MISSING flex])
1596 AC_CHECK_PROGS([CONFIGURED_LEX], [flex lex], [$MISSING flex])
1597 AC_CHECK_PROGS([CONFIGURED_MAKEINFO], makeinfo, [$MISSING makeinfo])
1598
1599 # Create a .gdbinit file which runs the one in srcdir
1600 # and tells GDB to look there for source files.
1601
1602 if test -r ${srcdir}/.gdbinit ; then
1603   case ${srcdir} in
1604     .) ;;
1605     *) cat > ./.gdbinit <<EOF
1606 # ${NO_EDIT}
1607 dir ${srcdir}
1608 dir .
1609 source ${srcdir}/.gdbinit
1610 EOF
1611     ;;
1612   esac
1613 fi
1614
1615 # Make sure that the compiler is able to generate an executable.  If it
1616 # can't, we are probably in trouble.  We don't care whether we can run the
1617 # executable--we might be using a cross compiler--we only care whether it
1618 # can be created.  At this point the main configure script has set CC.
1619 we_are_ok=no
1620 echo "int main () { return 0; }" > conftest.c
1621 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1622 if test $? = 0 ; then
1623   if test -s conftest || test -s conftest.exe ; then
1624     we_are_ok=yes
1625   fi
1626 fi
1627 case $we_are_ok in
1628   no)
1629     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1630     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1631     rm -f conftest*
1632     exit 1
1633     ;;
1634 esac
1635 rm -f conftest*
1636
1637 # The Solaris /usr/ucb/cc compiler does not appear to work.
1638 case "${host}" in
1639   sparc-sun-solaris2*)
1640       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1641       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1642           could_use=
1643           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1644           if test -d /opt/cygnus/bin ; then
1645               if test "$could_use" = "" ; then
1646                   could_use="/opt/cygnus/bin"
1647               else
1648                   could_use="$could_use or /opt/cygnus/bin"
1649               fi
1650           fi
1651         if test "$could_use" = "" ; then
1652             echo "Warning: compilation may fail because you're using"
1653             echo "/usr/ucb/cc.  You should change your PATH or CC "
1654             echo "variable and rerun configure."
1655         else
1656             echo "Warning: compilation may fail because you're using"
1657             echo "/usr/ucb/cc, when you should use the C compiler from"
1658             echo "$could_use.  You should change your"
1659             echo "PATH or CC variable and rerun configure."
1660         fi
1661       fi
1662   ;;
1663 esac
1664
1665 case "${host}" in
1666   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1667   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1668   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1669 esac
1670
1671 # Record target_configdirs and the configure arguments for target and
1672 # build configuration in Makefile.
1673 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1674 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1675
1676 # Determine whether gdb needs tk/tcl or not.
1677 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1678 # and in that case we want gdb to be built without tk.  Ugh!
1679 # In fact I believe gdb is the *only* package directly dependent on tk,
1680 # so we should be able to put the 'maybe's in unconditionally and
1681 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1682 # 100% sure that that's safe though.
1683
1684 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1685 case "$enable_gdbtk" in
1686   no)
1687     GDB_TK="" ;;
1688   yes)
1689     GDB_TK="${gdb_tk}" ;;
1690   *)
1691     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1692     # distro.  Eventually someone will fix this and move Insight, nee
1693     # gdbtk to a separate directory.
1694     if test -d ${srcdir}/gdb/gdbtk ; then
1695       GDB_TK="${gdb_tk}"
1696     else
1697       GDB_TK=""
1698     fi
1699     ;;
1700 esac
1701
1702 # Strip out unwanted targets.
1703
1704 # While at that, we remove Makefiles if we were started for recursive
1705 # configuration, so that the top-level Makefile reconfigures them,
1706 # like we used to do when configure itself was recursive.
1707
1708 # Loop over modules.  $extrasub must be used with care, limiting as
1709 # much as possible the usage of range addresses.  That's because autoconf
1710 # splits the sed script to overcome limits in the number of commands,
1711 # and relying on carefully-timed sed passes may turn out to be very hard
1712 # to maintain later.  In this particular case, you just have to be careful
1713 # not to nest @if/@endif pairs, because configure will not warn you at all.
1714
1715 AC_ARG_ENABLE([bootstrap],
1716 [  --enable-bootstrap[=lean]     Enable bootstrapping [no]],,
1717 enable_bootstrap=default)
1718
1719 # Issue errors and warnings for invalid/strange bootstrap combinations.
1720 case "$configdirs" in
1721   *gcc*) have_compiler=yes ;;
1722   *) have_compiler=no ;;
1723 esac
1724
1725 case "$have_compiler:$host:$target:$enable_bootstrap" in
1726   *:*:*:no) ;;
1727
1728   # Default behavior.  (We'll) enable bootstrap if we have a compiler
1729   # and we are in a native configuration.
1730   yes:$build:$build:default)
1731     # This will become 'yes'
1732     enable_bootstrap=no ;;
1733
1734   *:*:*:default)
1735     enable_bootstrap=no ;;
1736
1737   # We have a compiler and we are in a native configuration, bootstrap is ok
1738   yes:$build:$build:yes | yes:$build:$build:lean)
1739     ;;
1740
1741   # Other configurations, but we have a compiler.  Assume the user knows
1742   # what he's doing.
1743   yes:*:*:yes | yes:*:*:lean)
1744     AC_MSG_WARN([trying to bootstrap a cross compiler])
1745     ;;
1746
1747   # No compiler: if they passed --enable-bootstrap explicitly, fail
1748   no:*:*:yes | no:*:*:lean)
1749     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1750
1751   # Fail if wrong command line
1752   *)
1753     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1754     ;;
1755 esac
1756
1757 # Adjust the toplevel makefile according to whether bootstrap was selected.
1758 case "$enable_bootstrap" in
1759   yes)
1760     bootstrap_lean='#'
1761     default_target=bootstrap
1762     bootstrap_suffix=bootstrap ;;
1763   lean)
1764     bootstrap_lean=''
1765     default_target=bootstrap
1766     bootstrap_suffix=bootstrap ;;
1767   no)
1768     default_target=all
1769     bootstrap_suffix=no-bootstrap ;;
1770 esac
1771 AC_SUBST(bootstrap_lean)
1772 AC_SUBST(default_target)
1773
1774 for module in ${build_configdirs} ; do
1775   if test -z "${no_recursion}" \
1776      && test -f ${build_subdir}/${module}/Makefile; then
1777     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1778     rm -f ${build_subdir}/${module}/Makefile
1779   fi
1780   extrasub="$extrasub
1781 /^@if build-$module\$/d
1782 /^@endif build-$module\$/d
1783 /^@if build-$module-$bootstrap_suffix\$/d
1784 /^@endif build-$module-$bootstrap_suffix\$/d"
1785 done
1786 for module in ${configdirs} ; do
1787   if test -z "${no_recursion}" \
1788      && test -f ${module}/Makefile; then
1789     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1790     rm -f ${module}/Makefile
1791   fi
1792   extrasub="$extrasub
1793 /^@if $module\$/d
1794 /^@endif $module\$/d
1795 /^@if $module-$bootstrap_suffix\$/d
1796 /^@endif $module-$bootstrap_suffix\$/d"
1797 done
1798 for module in ${target_configdirs} ; do
1799   if test -z "${no_recursion}" \
1800      && test -f ${target_subdir}/${module}/Makefile; then
1801     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1802     rm -f ${target_subdir}/${module}/Makefile
1803   fi
1804   extrasub="$extrasub
1805 /^@if target-$module\$/d
1806 /^@endif target-$module\$/d
1807 /^@if target-$module-$bootstrap_suffix\$/d
1808 /^@endif target-$module-$bootstrap_suffix\$/d"
1809 done
1810
1811 extrasub="$extrasub
1812 /^@if /,/^@endif /d"
1813
1814 # Create the serialization dependencies.  This uses a temporary file.
1815
1816 AC_ARG_ENABLE([serial-configure],
1817 [  --enable-serial-[{host,target,build}-]configure
1818                           Force sequential configuration of
1819                           sub-packages for the host, target or build
1820                           machine, or all sub-packages])
1821
1822 case ${enable_serial_configure} in
1823   yes)
1824     enable_serial_build_configure=yes
1825     enable_serial_host_configure=yes
1826     enable_serial_target_configure=yes
1827     ;;
1828 esac
1829
1830 # These force 'configure's to be done one at a time, to avoid problems
1831 # with contention over a shared config.cache.
1832 rm -f serdep.tmp
1833 echo '# serdep.tmp' > serdep.tmp
1834 olditem=
1835 test "x${enable_serial_build_configure}" = xyes &&
1836 for item in ${build_configdirs} ; do
1837   case ${olditem} in
1838     "") ;;
1839     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1840   esac
1841   olditem=${item}
1842 done
1843 olditem=
1844 test "x${enable_serial_host_configure}" = xyes &&
1845 for item in ${configdirs} ; do
1846   case ${olditem} in
1847     "") ;;
1848     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1849   esac
1850   olditem=${item}
1851 done
1852 olditem=
1853 test "x${enable_serial_target_configure}" = xyes &&
1854 for item in ${target_configdirs} ; do
1855   case ${olditem} in
1856     "") ;;
1857     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1858   esac
1859   olditem=${item}
1860 done
1861 serialization_dependencies=serdep.tmp
1862 AC_SUBST_FILE(serialization_dependencies)
1863
1864 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1865 # target and nonopt.  These are the ones we might not want to pass
1866 # down to subconfigures.  Also strip program-prefix, program-suffix,
1867 # and program-transform-name, so that we can pass down a consistent
1868 # program-transform-name.  If autoconf has put single quotes around
1869 # any of these arguments (because they contain shell metacharacters)
1870 # then this will fail; in practice this only happens for
1871 # --program-transform-name, so be sure to override --program-transform-name
1872 # at the end of the argument list.
1873 # These will be expanded by make, so quote '$'.
1874 cat <<\EOF_SED > conftestsed
1875 s/ --no[[^ ]]*/ /g
1876 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1877 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1878 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1879 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1880 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1881 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1882 s/ -cache-file[[= ]][[^ ]]*//g
1883 s/ -srcdir[[= ]][[^ ]]*//g
1884 s/ -host[[= ]][[^ ]]*//g
1885 s/ -build[[= ]][[^ ]]*//g
1886 s/ -target[[= ]][[^ ]]*//g
1887 s/ -program-prefix[[= ]][[^ ]]*//g
1888 s/ -program-suffix[[= ]][[^ ]]*//g
1889 s/ -program-transform-name[[= ]][[^ ]]*//g
1890 s/ [[^' -][^ ]*] / /
1891 s/^ *//;s/ *$//
1892 s,\$,$$,g
1893 EOF_SED
1894 sed -f conftestsed <<EOF_SED > conftestsed.out
1895  ${ac_configure_args}
1896 EOF_SED
1897 baseargs=`cat conftestsed.out`
1898 rm -f conftestsed conftestsed.out
1899
1900 # Add in --program-transform-name, after --program-prefix and
1901 # --program-suffix have been applied to it.  Autoconf has already
1902 # doubled dollar signs and backslashes in program_transform_name; we want
1903 # the backslashes un-doubled, and then the entire thing wrapped in single
1904 # quotes, because this will be expanded first by make and then by the shell.
1905 # Also, because we want to override the logic in subdir configure scripts to
1906 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1907 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1908 ${program_transform_name}
1909 EOF_SED
1910 gcc_transform_name=`cat conftestsed.out`
1911 rm -f conftestsed.out
1912 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1913
1914 # For the build-side libraries, we just need to pretend we're native,
1915 # and not use the same cache file.  Multilibs are neither needed nor
1916 # desired.
1917 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
1918
1919 # For host modules, accept cache file option, or specification as blank.
1920 case "${cache_file}" in
1921 "") # empty
1922   cache_file_option="" ;;
1923 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1924   cache_file_option="--cache-file=${cache_file}" ;;
1925 *) # relative path
1926   cache_file_option="--cache-file=../${cache_file}" ;;
1927 esac
1928
1929 # Host dirs don't like to share a cache file either, horribly enough.
1930 # This seems to be due to autoconf 2.5x stupidity.
1931 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1932
1933 target_configargs=${baseargs}
1934
1935 # Passing a --with-cross-host argument lets the target libraries know
1936 # whether they are being built with a cross-compiler or being built
1937 # native.  However, it would be better to use other mechanisms to make the
1938 # sorts of decisions they want to make on this basis.  Please consider
1939 # this option to be deprecated.  FIXME.
1940 if test x${is_cross_compiler} = xyes ; then
1941   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1942 fi
1943
1944 # Default to --enable-multilib.
1945 if test x${enable_multilib} = x ; then
1946   target_configargs="--enable-multilib ${target_configargs}"
1947 fi
1948
1949 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1950 # changed from the earlier setting of with_newlib.
1951 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1952   target_configargs="--with-newlib ${target_configargs}"
1953 fi
1954
1955 # Different target subdirs use different values of certain variables
1956 # (notably CXX).  Worse, multilibs use *lots* of different values.
1957 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1958 # it doesn't automatically accept command-line overrides of them.
1959 # This means it's not safe for target subdirs to share a cache file,
1960 # which is disgusting, but there you have it.  Hopefully this can be
1961 # fixed in future.  It's still worthwhile to use a cache file for each
1962 # directory.  I think.
1963
1964 # Pass the appropriate --build, --host, --target and --cache-file arguments.
1965 # We need to pass --target, as newer autoconf's requires consistency
1966 # for target_alias and gcc doesn't manage it consistently.
1967 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
1968
1969 FLAGS_FOR_TARGET=
1970 case " $target_configdirs " in
1971  *" newlib "*)
1972   case " $target_configargs " in
1973   *" --with-newlib "*)
1974    case "$target" in
1975    *-cygwin*)
1976      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' ;;
1977    esac
1978
1979    # If we're not building GCC, don't discard standard headers.
1980    if test -d ${srcdir}/gcc; then
1981      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1982
1983      if test "${build}" != "${host}"; then
1984        # On Canadian crosses, CC_FOR_TARGET will have already been set
1985        # by `configure', so we won't have an opportunity to add -Bgcc/
1986        # to it.  This is right: we don't want to search that directory
1987        # for binaries, but we want the header files in there, so add
1988        # them explicitly.
1989        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
1990
1991        # Someone might think of using the pre-installed headers on
1992        # Canadian crosses, in case the installed compiler is not fully
1993        # compatible with the compiler being built.  In this case, it
1994        # would be better to flag an error than risking having
1995        # incompatible object files being constructed.  We can't
1996        # guarantee that an error will be flagged, but let's hope the
1997        # compiler will do it, when presented with incompatible header
1998        # files.
1999      fi
2000    fi
2001
2002    case "${target}-${is_cross_compiler}" in
2003    i[[3456789]]86-*-linux*-no)
2004       # Here host == target, so we don't need to build gcc,
2005       # so we don't want to discard standard headers.
2006       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2007       ;;
2008    *)
2009       # If we're building newlib, use its generic headers last, but search
2010       # for any libc-related directories first (so make it the last -B
2011       # switch).
2012       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2013       ;;
2014    esac
2015    ;;
2016   esac
2017   ;;
2018 esac
2019
2020 # Allow the user to override the flags for
2021 # our build compiler if desired.
2022 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2023
2024 # On Canadian crosses, we'll be searching the right directories for
2025 # the previously-installed cross compiler, so don't bother to add
2026 # flags for directories within the install tree of the compiler
2027 # being built; programs in there won't even run.
2028 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2029   # Search for pre-installed headers if nothing else fits.
2030   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2031 fi
2032
2033 if test "x${use_gnu_ld}" = x &&
2034    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2035   # Arrange for us to find uninstalled linker scripts.
2036   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2037 fi
2038
2039 if test "x${CC_FOR_TARGET+set}" = xset; then
2040   :
2041 elif test -d ${srcdir}/gcc; then
2042   CC_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/'
2043 elif test "$host" = "$target"; then
2044   CC_FOR_TARGET='$(CC)'
2045 else
2046   CC_FOR_TARGET=`echo gcc | sed "${program_transform_name}"`
2047 fi
2048 CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2049
2050 if test "x${GCJ_FOR_TARGET+set}" = xset; then
2051   :
2052 elif test -d ${srcdir}/gcc; then
2053   GCJ_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/'
2054 elif test "$host" = "$target"; then
2055   GCJ_FOR_TARGET='gcj'
2056 else
2057   GCJ_FOR_TARGET=`echo gcj | sed "${program_transform_name}"`
2058 fi
2059 GCJ_FOR_TARGET=$GCJ_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2060
2061 if test "x${GFORTRAN_FOR_TARGET+set}" = xset; then
2062   :
2063 elif test -d ${srcdir}/gcc; then
2064   GFORTRAN_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/'
2065 elif test "$host" = "$target"; then
2066   GFORTRAN_FOR_TARGET='gfortran'
2067 else
2068   GFORTRAN_FOR_TARGET=`echo gfortran | sed "${program_transform_name}"`
2069 fi
2070 case $GFORTRAN_FOR_TARGET in
2071 *' $(FLAGS_FOR_TARGET)') ;;
2072 *) GFORTRAN_FOR_TARGET=$GFORTRAN_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
2073 esac
2074
2075 # Don't use libstdc++-v3's flags to configure/build itself.
2076 libstdcxx_flags='`test ! -f $$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$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2077 raw_libstdcxx_flags='-L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2078
2079 if test "x${CXX_FOR_TARGET+set}" = xset; then
2080   if test "x${RAW_CXX_FOR_TARGET+set}" != xset; then
2081     RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2082   fi
2083 elif test -d ${srcdir}/gcc; then
2084   # We add -shared-libgcc to CXX_FOR_TARGET whenever we use xgcc instead
2085   # of g++ for linking C++ or Java, because g++ has -shared-libgcc by
2086   # default whereas gcc does not.
2087   # RAW_CXX_FOR_TARGET is for linking C++ or java; CXX_FOR_TARGET is for
2088   # all other cases.
2089   CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ '$libstdcxx_flags
2090   RAW_CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ '$raw_libstdcxx_flags
2091 elif test "$host" = "$target"; then
2092   CXX_FOR_TARGET='$(CXX)'
2093   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2094 else
2095   CXX_FOR_TARGET=`echo c++ | sed "${program_transform_name}"`
2096   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2097 fi
2098 CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2099 RAW_CXX_FOR_TARGET=$RAW_CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2100
2101 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2102 qRAW_CXX_FOR_TARGET=`echo "$RAW_CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2103
2104 # We want to defer the evaluation of `cmd`s and shell variables in
2105 # CXX_FOR_TARGET when recursing in the top-level Makefile, such as for
2106 # bootstrap.  We'll enclose CXX_FOR_TARGET_FOR_RECURSIVE_MAKE in single
2107 # quotes, but we still have to duplicate `$'s so that shell variables
2108 # can be expanded by the nested make as shell variables, not as make
2109 # macros.
2110 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2111 qqRAW_CXX_FOR_TARGET=`echo "$qRAW_CXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2112
2113 # Wrap CC_FOR_TARGET and friends, for certain types of builds.
2114 CC_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${CC_FOR_TARGET}"
2115 GCJ_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GCJ_FOR_TARGET}"
2116 GFORTRAN_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GFORTRAN_FOR_TARGET}"
2117 CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qCXX_FOR_TARGET}"
2118 RAW_CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qRAW_CXX_FOR_TARGET}"
2119 CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqCXX_FOR_TARGET}"
2120 RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqRAW_CXX_FOR_TARGET}"
2121
2122 # Makefile fragments.
2123 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2124 do
2125   eval fragval=\$$frag
2126   if test $fragval != /dev/null; then
2127     eval $frag=${srcdir}/$fragval
2128   fi
2129 done
2130 AC_SUBST_FILE(host_makefile_frag)
2131 AC_SUBST_FILE(target_makefile_frag)
2132 AC_SUBST_FILE(alphaieee_frag)
2133 AC_SUBST_FILE(ospace_frag)
2134
2135 # Miscellanea: directories, flags, etc.
2136 AC_SUBST(RPATH_ENVVAR)
2137 AC_SUBST(BUILD_PREFIX)
2138 AC_SUBST(BUILD_PREFIX_1)
2139 AC_SUBST(tooldir)
2140 AC_SUBST(build_tooldir)
2141 AC_SUBST(GDB_TK)
2142
2143 # Build module lists & subconfigure args.
2144 AC_SUBST(build_configargs)
2145 AC_SUBST(build_configdirs)
2146
2147 # Host module lists & subconfigure args.
2148 AC_SUBST(host_configargs)
2149 AC_SUBST(configdirs)
2150
2151 # Target module lists & subconfigure args.
2152 AC_SUBST(target_configargs)
2153 AC_SUBST(target_configdirs)
2154
2155 # Build tools.
2156 AC_SUBST(CC_FOR_BUILD)
2157 AC_SUBST(config_shell)
2158
2159 # Host tools.
2160 NCN_STRICT_CHECK_TOOL(AR, ar)
2161 NCN_STRICT_CHECK_TOOL(AS, as)
2162 NCN_STRICT_CHECK_TOOL(DLLTOOL, dlltool)
2163 NCN_STRICT_CHECK_TOOL(LD, ld)
2164 NCN_STRICT_CHECK_TOOL(NM, nm)
2165 NCN_STRICT_CHECK_TOOL(RANLIB, ranlib, :)
2166 NCN_STRICT_CHECK_TOOL(WINDRES, windres)
2167 NCN_STRICT_CHECK_TOOL(OBJCOPY, objcopy)
2168 NCN_STRICT_CHECK_TOOL(OBJDUMP, objdump)
2169 AC_SUBST(CC)
2170 AC_SUBST(CXX)
2171 AC_SUBST(CFLAGS)
2172 AC_SUBST(CFLAGS_FOR_BUILD)
2173 AC_SUBST(CXXFLAGS)
2174
2175 # Target tools.
2176 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AR_FOR_TARGET, ar)
2177 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AS_FOR_TARGET, as)
2178 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_DLLTOOL_FOR_TARGET, dlltool)
2179 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_LD_FOR_TARGET, ld)
2180 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_NM_FOR_TARGET, nm)
2181 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_RANLIB_FOR_TARGET, ranlib, :)
2182 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_WINDRES_FOR_TARGET, windres)
2183
2184 AC_SUBST(GCC_FOR_TARGET)
2185 AC_SUBST(FLAGS_FOR_TARGET)
2186 AC_SUBST(CC_FOR_TARGET)
2187 AC_SUBST(GCJ_FOR_TARGET)
2188 AC_SUBST(GFORTRAN_FOR_TARGET)
2189 AC_SUBST(CXX_FOR_TARGET)
2190 AC_SUBST(RAW_CXX_FOR_TARGET)
2191 AC_SUBST(CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2192 AC_SUBST(RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2193
2194 # Fix up target tools.
2195 if test "x${build}" = "x${host}" ; then
2196   # In this case, the newly built tools can and should be used,
2197   # so we override the results of the autoconf tests.
2198   # This should really only happen when the tools are actually being built,
2199   # but that's a further refinement.  The new build scheme, where
2200   # tools are built into a structure paralleling where they're installed,
2201   # should also eliminate all of this cleanly.
2202   AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
2203   AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
2204   DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
2205   LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
2206   NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
2207   RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
2208   WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
2209 else
2210   # Just use the ones we found.
2211   AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)"
2212   AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)"
2213   DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)"
2214   LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)"
2215   NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)"
2216   RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)"
2217   WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)"
2218 fi
2219 AC_SUBST(AR_FOR_TARGET)
2220 AC_SUBST(AS_FOR_TARGET)
2221 AC_SUBST(DLLTOOL_FOR_TARGET)
2222 AC_SUBST(LD_FOR_TARGET)
2223 AC_SUBST(NM_FOR_TARGET)
2224 AC_SUBST(RANLIB_FOR_TARGET)
2225 AC_SUBST(WINDRES_FOR_TARGET)
2226
2227 # Certain tools may need extra flags.
2228 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2229 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2230 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2231
2232 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2233 AC_ARG_ENABLE(maintainer-mode,
2234 [  --enable-maintainer-mode enable make rules and dependencies not useful
2235                           (and sometimes confusing) to the casual installer],
2236       USE_MAINTAINER_MODE=$enableval,
2237       USE_MAINTAINER_MODE=no)
2238 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2239 AC_SUBST(MAINTAINER_MODE_TRUE)
2240 AC_SUBST(MAINTAINER_MODE_FALSE)
2241 if test "$USE_MAINTAINER_MODE" = yes; then
2242   MAINTAINER_MODE_TRUE=
2243   MAINTAINER_MODE_FALSE='#'
2244 else
2245   MAINTAINER_MODE_TRUE='#'
2246   MAINTAINER_MODE_FALSE=
2247 fi
2248 MAINT=$MAINTAINER_MODE_TRUE
2249 AC_SUBST(MAINT)dnl
2250
2251 # ---------------------
2252 # GCC bootstrap support
2253 # ---------------------
2254
2255 # Stage specific cflags for build.
2256 stage1_cflags="-g"
2257 case $build in
2258   vax-*-*)
2259     case ${GCC} in
2260       yes) stage1_cflags="-g -Wa,-J" ;;
2261       *) stage1_cflags="-g -J" ;;
2262     esac ;;
2263   powerpc-*-darwin*)
2264     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2265     # sources; use -no-cpp-precomp to get to GNU cpp.
2266     # Apple's GCC has bugs in designated initializer handling, so disable
2267     # that too.
2268     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2269     ;;
2270 esac
2271 AC_SUBST(stage1_cflags)
2272
2273 # It makes debugging easier if we create as symlinks the stage directories
2274 # gcc for stageN-gcc and stagePREV-gcc for stage(N-1).  In case this is not
2275 # possible, however, we can resort to mv.
2276 AC_CACHE_CHECK([if symbolic links between directories work],
2277 [gcc_cv_prog_ln_s_dir],
2278 [if test "${LN_S}" = "ln -s" \
2279    && mkdir confdir.s1 \
2280    && ln -s confdir.s1 confdir.s2 \
2281    && echo timestamp1 > confdir.s1/conftest.1 \
2282    && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
2283    && echo timestamp2 > confdir.s2/conftest.2 \
2284    && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
2285    && rm -f confdir.s2; then
2286   gcc_cv_prog_ln_s_dir=yes
2287 else
2288   gcc_cv_prog_ln_s_dir=no
2289 fi
2290 rm -rf confdir.s1 confdir.s2])
2291
2292 case ${gcc_cv_prog_ln_s_dir} in
2293   yes)
2294     CREATE_LINK_TO_DIR='ln -s $$1 $$2'
2295     UNDO_LINK_TO_DIR='rm -f $$1' ;;
2296   *)
2297     CREATE_LINK_TO_DIR='mv $$1 $$2'
2298     UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
2299 esac
2300 AC_SUBST(CREATE_LINK_TO_DIR)
2301 AC_SUBST(UNDO_LINK_TO_DIR)
2302
2303 # Enable -Werror in bootstrap stage2 and later.
2304 # Change the default to "no" on release branches.
2305 AC_ARG_ENABLE(werror,
2306 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2307 [enable_werror=yes])
2308 case ${enable_werror} in
2309   yes) stage2_werror_flag="--enable-werror-always" ;;
2310   *) stage2_werror_flag="" ;;
2311 esac
2312 AC_SUBST(stage2_werror_flag)
2313
2314 AC_OUTPUT(Makefile)