configure.in

   1 #! /bin/bash
   2 ##############################################################################
   3
   4 ## This file is a shell script fragment that supplies the information
   5 ## necessary to tailor a template configure script into the configure
   6 ## script appropriate for this directory.  For more information, check
   7 ## any existing configure script.
   8
   9 ## Be warned, there are two types of configure.in files.  There are those
  10 ## used by Autoconf, which are macros which are expanded into a configure
  11 ## script by autoconf.  The other sort, of which this is one, is executed
  12 ## by Cygnus configure.
  13
  14 ## For more information on these two systems, check out the documentation
  15 ## for 'Autoconf' (autoconf.texi) and 'Configure' (configure.texi).
  16
  17 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
  18 #   1999, 2000 Free Software Foundation, Inc.
  19 #
  20 # This file is free software; you can redistribute it and/or modify it
  21 # under the terms of the GNU General Public License as published by
  22 # the Free Software Foundation; either version 2 of the License, or
  23 # (at your option) any later version.
  24 #
  25 # This program is distributed in the hope that it will be useful, but
  26 # WITHOUT ANY WARRANTY; without even the implied warranty of
  27 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  28 # General Public License for more details.
  29 #
  30 # You should have received a copy of the GNU General Public License
  31 # along with this program; if not, write to the Free Software
  32 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  33
  34 ##############################################################################
  35
  36 ### To add a new directory to the tree, first choose whether it is a target
  37 ### or a host dependent tool.  Then put it into the appropriate list
  38 ### (library or tools, host or target), doing a dependency sort.  For
  39 ### example, gdb requires that byacc (or bison) be built first, so it is in
  40 ### the ${host_tools} list after byacc and bison.
  41
  42
  43 # these libraries are used by various programs built for the host environment
  44 #
  45 host_libs="intl mmalloc libiberty opcodes bfd readline gash db tcl tk tcl8.1 tk8.1 tclX itcl tix libgui zlib"
  46
  47 if [ "${enable_gdbgui}" = "yes" ] ; then
  48         host_libs="${host_libs} libgui"
  49 fi
  50
  51 # Set up configure/Makefile variables if libstdc++-v3 is to be built.
  52 if [ "${enable_libstdcxx_v3}" = "yes" ] && test -d $srcdir/libstdc++-v3; then
  53         libstdcxx_version="target-libstdc++-v3"
  54         # Don't use libstdc++-v3's flags to configure/build itself.
  55         libstdcxx_flags='`case $$dir in libstdc++-v3) ;; *) cat $$r/$(TARGET_SUBDIR)/libstdc++-v3/src/libstdc++.INC 2>/dev/null || : ;; esac` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
  56 else
  57         libstdcxx_version="target-libio target-libstdc++"
  58         libstdcxx_flags='-isystem $$s/libstdc++ -isystem $$s/libstdc++/std -isystem $$s/libstdc++/stl -isystem $$s/libio -isystem $$r/$(TARGET_SUBDIR)/libio -L$$r/$(TARGET_SUBDIR)/libstdc++'
  59 fi
  60
  61 # these tools are built for the host environment
  62 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
  63 # know that we are building the simulator.
  64 host_tools="texinfo byacc flex bison binutils ld gas gcc sim gdb make patch prms send-pr gprof gdbtest tgas etc expect dejagnu ash bash bzip2 m4 autoconf automake libtool ispell grep diff rcs cvssrc fileutils shellutils time textutils wdiff find emacs emacs19 uudecode hello tar gzip indent recode release sed utils guile perl apache inet gawk findutils snavigator libtool gettext zip fastjar"
  65
  66 # libgcj represents the runtime libraries only used by gcj.
  67 libgcj="target-libffi \
  68         target-boehm-gc \
  69         target-zlib \
  70         target-qthreads \
  71         target-libjava"
  72
  73 # these libraries are built for the target environment, and are built after
  74 # the host libraries and the host tools (which may be a cross compiler)
  75 #
  76 target_libs="target-libiberty \
  77                 target-libgloss \
  78                 target-newlib \
  79                 target-librx \
  80                 ${libstdcxx_version} \
  81                 target-libg++ \
  82                 target-libf2c \
  83                 target-libchill \
  84                 ${libgcj}
  85                 target-libobjc"
  86
  87 # these tools are built using the target libs, and are intended to run only
  88 # in the target environment
  89 #
  90 # note: any program that *uses* libraries that are in the "target_libs"
  91 # list belongs in this list.  those programs are also very likely
  92 # candidates for the "native_only" list which follows
  93 #
  94 target_tools="target-examples target-groff target-gperf"
  95
  96 ################################################################################
  97
  98 ## These two lists are of directories that are to be removed from the
  99 ## ${configdirs} list for either cross-compilations or for native-
 100 ## compilations.  For example, it doesn't make that much sense to
 101 ## cross-compile Emacs, nor is it terribly useful to compile target-libiberty in
 102 ## a native environment.
 103
 104 # directories to be built in the native environment only
 105 #
 106 # This must be a single line because of the way it is searched by grep in
 107 # the code below.
 108 native_only="autoconf automake libtool cvssrc emacs emacs19 fileutils find gawk gettext grep gzip hello indent ispell m4 rcs recode sed shellutils tar textutils gash uudecode wdiff gprof target-groff guile perl apache inet time ash bash bzip2 prms snavigator gnuserv target-gperf"
 109
 110 # directories to be built in a cross environment only
 111 #
 112 cross_only="target-libgloss target-newlib target-cygmon target-opcodes target-libstub"
 113
 114 ## All tools belong in one of the four categories, and are assigned above
 115 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 116 ## is important because configure will choke if they ever get through.
 117 ## ${configdirs} is directories we build using the host tools.
 118 ## ${target_configdirs} is directories we build using the target tools.
 119 #
 120 configdirs=`echo ${host_libs} ${host_tools}`
 121 target_configdirs=`echo ${target_libs} ${target_tools}`
 122
 123 ################################################################################
 124
 125 srctrigger=move-if-change
 126 srcname="gnu development package"
 127
 128 # This gets set non-empty for some net releases of packages.
 129 appdirs=""
 130
 131 # per-host:
 132
 133 # Work in distributions that contain no compiler tools, like Autoconf.
 134 if [ -d ${srcdir}/config ]; then
 135 case "${host}" in
 136   m68k-hp-hpux*)
 137     host_makefile_frag="${host_makefile_frag} config/mh-hp300"
 138     ;;
 139   m68k-apollo-sysv*)
 140     host_makefile_frag="${host_makefile_frag} config/mh-apollo68"
 141     ;;
 142   m68k-apollo-bsd*)
 143     host_makefile_frag="${host_makefile_frag} config/mh-a68bsd"
 144     ;;
 145   m88k-dg-dgux*)
 146     host_makefile_frag="${host_makefile_frag} config/mh-dgux"
 147     ;;
 148   m88k-harris-cxux*)
 149     host_makefile_frag="${host_makefile_frag} config/mh-cxux"
 150     ;;
 151   m88k-motorola-sysv*)
 152     host_makefile_frag="${host_makefile_frag} config/mh-delta88"
 153     ;;
 154   mips*-dec-ultrix*)
 155     host_makefile_frag="${host_makefile_frag} config/mh-decstation"
 156     ;;
 157   mips*-nec-sysv4*)
 158     host_makefile_frag="${host_makefile_frag} config/mh-necv4"
 159     ;;
 160   mips*-sgi-irix6*)
 161     host_makefile_frag="${host_makefile_frag} config/mh-irix6"
 162     ;;
 163   mips*-sgi-irix5*)
 164     host_makefile_frag="${host_makefile_frag} config/mh-irix5"
 165     ;;
 166   mips*-sgi-irix4*)
 167     host_makefile_frag="${host_makefile_frag} config/mh-irix4"
 168     ;;
 169   mips*-sgi-irix3*)
 170     host_makefile_frag="${host_makefile_frag} config/mh-sysv"
 171     ;;
 172   mips*-*-sysv4*)
 173     host_makefile_frag="${host_makefile_frag} config/mh-sysv4"
 174     ;;
 175   mips*-*-sysv*)
 176     host_makefile_frag="${host_makefile_frag} config/mh-riscos"
 177     ;;
 178   i370-ibm-opened*)
 179     host_makefile_frag="${host_makefile_frag} config/mh-openedition"
 180     ;;
 181   i[3456]86-*-sysv5*)
 182     host_makefile_frag="${host_makefile_frag} config/mh-sysv5"
 183     ;;
 184   i[3456]86-*-dgux*)
 185     host_makefile_frag="${host_makefile_frag} config/mh-dgux386"
 186     ;;
 187   i[3456]86-ncr-sysv4.3*)
 188     host_makefile_frag="${host_makefile_frag} config/mh-ncrsvr43"
 189     ;;
 190   i[3456]86-ncr-sysv4*)
 191     host_makefile_frag="${host_makefile_frag} config/mh-ncr3000"
 192     ;;
 193   i[3456]86-*-sco3.2v5*)
 194     host_makefile_frag="${host_makefile_frag} config/mh-sysv"
 195     ;;
 196   i[3456]86-*-sco*)
 197     host_makefile_frag="${host_makefile_frag} config/mh-sco"
 198     ;;
 199   i[3456]86-*-udk*)
 200     host_makefile_frag="${host_makefile_frag} config/mh-sysv5"
 201     ;;
 202   i[3456]86-*-isc*)
 203     host_makefile_frag="${host_makefile_frag} config/mh-sysv"
 204     ;;
 205   i[3456]86-*-solaris2*)
 206     host_makefile_frag="${host_makefile_frag} config/mh-sysv4"
 207     ;;
 208   i[3456]86-*-aix*)
 209     host_makefile_frag="${host_makefile_frag} config/mh-aix386"
 210     ;;
 211   i[3456]86-*-msdosdjgpp*)
 212     host_makefile_frag="${host_makefile_frag} config/mh-djgpp"
 213     ;;
 214   *-cygwin*)
 215     host_makefile_frag="${host_makefile_frag} config/mh-cygwin"
 216     ;;
 217   *-mingw32*)
 218     host_makefile_frag="${host_makefile_frag} config/mh-mingw32"
 219     ;;
 220   *-interix*)
 221     host_makefile_frag="${host_makefile_frag} config/mh-interix"
 222     ;;
 223   *-windows*)
 224     host_makefile_frag="${host_makefile_frag} config/mh-windows"
 225     ;;
 226   vax-*-ultrix2*)
 227     host_makefile_frag="${host_makefile_frag} config/mh-vaxult2"
 228     ;;
 229   *-*-solaris2*)
 230     host_makefile_frag="${host_makefile_frag} config/mh-solaris"
 231     ;;
 232   m68k-sun-sunos*)
 233     host_makefile_frag="${host_makefile_frag} config/mh-sun3"
 234     ;;
 235   *-hp-hpux[78]*)
 236     host_makefile_frag="${host_makefile_frag} config/mh-hpux8"
 237     ;;
 238   *-hp-hpux*)
 239     host_makefile_frag="${host_makefile_frag} config/mh-hpux"
 240     ;;
 241   *-*-hiux*)
 242     host_makefile_frag="${host_makefile_frag} config/mh-hpux"
 243     ;;
 244   rs6000-*-lynxos*)
 245     host_makefile_frag="${host_makefile_frag} config/mh-lynxrs6k"
 246     ;;
 247   *-*-lynxos*)
 248     host_makefile_frag="${host_makefile_frag} config/mh-lynxos"
 249     ;;
 250   *-*-sysv4*)
 251     host_makefile_frag="${host_makefile_frag} config/mh-sysv4"
 252     ;;
 253   *-*-sysv*)
 254     host_makefile_frag="${host_makefile_frag} config/mh-sysv"
 255     ;;
 256 esac
 257 fi
 258
 259 # If we aren't going to be using gcc, see if we can extract a definition
 260 # of CC from the fragment.
 261 if [ -z "${CC}" ] && [ "${build}" = "${host}" ]; then
 262   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 263   found=
 264   for dir in $PATH; do
 265     test -z "$dir" && dir=.
 266     if test -f $dir/gcc; then
 267       found=yes
 268       break
 269     fi
 270   done
 271   IFS="$save_ifs"
 272   if [ -z "${found}" ] && [ -n "${host_makefile_frag}" ] && [ -f "${srcdir}/${host_makefile_frag}" ]; then
 273     xx=`sed -n -e 's/^[         ]*CC[   ]*=[    ]*\(.*\)$/\1/p' < ${srcdir}/${host_makefile_frag}`
 274     if [ -n "${xx}" ] ; then
 275       CC=$xx
 276     fi
 277   fi
 278 fi
 279
 280 # We default to --with-shared on platforms where -fpic is meaningless.
 281 # Well, we don't yet, but we will.
 282 if false && [ "${host}" = "${target}" ] && [ x${enable_shared} = x ]; then
 283   case "${target}" in
 284     alpha*-dec-osf*)    enable_shared=yes ;;
 285     alpha*-*-linux*)    enable_shared=yes ;;
 286     mips-sgi-irix5*)    enable_shared=yes ;;
 287     *)                  enable_shared=no ;;
 288   esac
 289 fi
 290
 291 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
 292 # them automatically.
 293 case "${host}" in
 294   hppa*64*-*-hpux11*)
 295     withoptions="$withoptions -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
 296     ;;
 297 esac
 298
 299 case "${enable_shared}" in
 300   yes) shared=yes ;;
 301   no) shared=no ;;
 302   "") shared=no ;;
 303   *) shared=yes ;;
 304 esac
 305
 306 if [ x${shared} = xyes ]; then
 307   case "${host}" in
 308     alpha*-*-linux*)
 309       host_makefile_frag="${host_makefile_frag} config/mh-elfalphapic"
 310       ;;
 311     arm*-*-*)
 312       host_makefile_frag="${host_makefile_frag} config/mh-armpic"
 313       ;;
 314     hppa*-*-*)
 315       host_makefile_frag="${host_makefile_frag} config/mh-papic"
 316       ;;
 317     i[3456]86-*-cygwin*)
 318       # We don't want -fPIC on Cygwin.
 319       ;;
 320     i[3456]86-*-*)
 321       host_makefile_frag="${host_makefile_frag} config/mh-x86pic"
 322       ;;
 323     i370-*-*)
 324       host_makefile_frag="${host_makefile_frag} config/mh-i370pic"
 325       ;;
 326     ia64-*-*)
 327       host_makefile_frag="${host_makefile_frag} config/mh-ia64pic"
 328       ;;
 329     sparc64-*-*)
 330       host_makefile_frag="${host_makefile_frag} config/mh-sparcpic"
 331       ;;
 332     powerpc*-*-aix*)
 333       # We don't want -fPIC on AIX.
 334       ;;
 335     powerpc*-*-*)
 336       host_makefile_frag="${host_makefile_frag} config/mh-ppcpic"
 337       ;;
 338     *-*-*)
 339       if test -f ${srcdir}/config/mh-${host_cpu}pic; then
 340         host_makefile_frag="${host_makefile_frag} config/mh-${host_cpu}pic"
 341       fi
 342       ;;
 343   esac
 344 fi
 345
 346 rm -f mh-frag
 347 if [ -n "${host_makefile_frag}" ] ; then
 348   for f in ${host_makefile_frag}
 349   do
 350     cat ${srcdir}/$f >> mh-frag
 351   done
 352   host_makefile_frag=mh-frag
 353 fi
 354
 355 # per-target:
 356
 357 case "${target}" in
 358   v810*)
 359     target_makefile_frag="${target_makefile_frag} config/mt-v810"
 360     ;;
 361   i[3456]86-*-netware*)
 362     target_makefile_frag="${target_makefile_frag} config/mt-netware"
 363     ;;
 364   powerpc-*-netware*)
 365     target_makefile_frag="${target_makefile_frag} config/mt-netware"
 366     ;;
 367   *-*-linux*)
 368     target_makefile_frag="${target_makefile_frag} config/mt-linux"
 369     ;;
 370   *-*-aix4.[3456789]* | *-*-aix[56789].*)
 371     target_makefile_frag="${target_makefile_frag} config/mt-aix43"
 372     ;;
 373   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
 374     target_makefile_frag="${target_makefile_frag} config/mt-wince"
 375     ;;
 376 esac
 377
 378 # If --enable-target-optspace always use -Os instead of -O2 to build
 379 # the target libraries, similarly if it is not specified, use -Os
 380 # on selected platforms.
 381 case "${enable_target_optspace}:${target}" in
 382   yes:*)
 383     target_makefile_frag="${target_makefile_frag} config/mt-ospace"
 384     ;;
 385   :d30v-*)
 386     target_makefile_frag="${target_makefile_frag} config/mt-d30v"
 387     ;;
 388   :m32r-* | :d10v-* | :fr30-*)
 389     target_makefile_frag="${target_makefile_frag} config/mt-ospace"
 390     ;;
 391   no:* | :*)
 392     ;;
 393   *)
 394     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
 395     ;;
 396 esac
 397
 398 skipdirs=
 399 gasdir=gas
 400 use_gnu_ld=
 401 use_gnu_as=
 402
 403 # some tools are so dependent upon X11 that if we're not building with X,
 404 # it's not even worth trying to configure, much less build, that tool.
 405
 406 case ${with_x} in
 407   yes | "")  # the default value for this tree is that X11 is available
 408         ;;
 409   no)
 410         skipdirs="${skipdirs} tk libgui gash"
 411         ;;
 412   *)
 413         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 414         ;;
 415 esac
 416
 417 # Some tools are only suitable for building in a "native" situation.
 418 # Those are added when we have a host==target configuration.  For cross
 419 # toolchains, we add some directories that should only be useful in a
 420 # cross-compiler.
 421
 422 is_cross_compiler=
 423
 424 if [ x"${host}" = x"${target}" ] ; then
 425         # when doing a native toolchain, don't build the targets
 426         # that are in the 'cross only' list
 427         skipdirs="${skipdirs} ${cross_only}"
 428         is_cross_compiler=no
 429 else
 430         # similarly, don't build the targets in the 'native only'
 431         # list when building a cross compiler
 432         skipdirs="${skipdirs} ${native_only}"
 433         is_cross_compiler=yes
 434 fi
 435
 436 # We always want to use the same name for this directory, so that dejagnu
 437 # can reliably find it.
 438 target_subdir=${target_alias}
 439
 440 if [ ! -d ${target_subdir} ] ; then
 441   if mkdir ${target_subdir} ; then true
 442   else
 443     echo "'*** could not make ${PWD=`pwd`}/${target_subdir}" 1>&2
 444     exit 1
 445   fi
 446 fi
 447
 448 copy_dirs=
 449
 450 # Handle --with-headers=XXX.  The contents of the named directory are
 451 # copied to $(tooldir)/sys-include.
 452 if [ x"${with_headers}" != x ]; then
 453   if [ x${is_cross_compiler} = xno ]; then
 454     echo 1>&2 '***' --with-headers is only supported when cross compiling
 455     exit 1
 456   fi
 457   case "${exec_prefixoption}" in
 458   "") x=${prefix} ;;
 459   *) x=${exec_prefix} ;;
 460   esac
 461   copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
 462 fi
 463
 464 # Handle --with-libs=XXX.  Multiple directories are permitted.  The
 465 # contents are copied to $(tooldir)/lib.
 466 if [ x"${with_libs}" != x ]; then
 467   if [ x${is_cross_compiler} = xno ]; then
 468     echo 1>&2 '***' --with-libs is only supported when cross compiling
 469     exit 1
 470   fi
 471   # Copy the libraries in reverse order, so that files in the first named
 472   # library override files in subsequent libraries.
 473   case "${exec_prefixoption}" in
 474   "") x=${prefix} ;;
 475   *) x=${exec_prefix} ;;
 476   esac
 477   for l in ${with_libs}; do
 478     copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 479   done
 480 fi
 481
 482 # If both --with-headers and --with-libs are specified, default to
 483 # --without-newlib.
 484 if [ x"${with_headers}" != x ] && [ x"${with_libs}" != x ]; then
 485   if [ x"${with_newlib}" = x ]; then
 486     with_newlib=no
 487   fi
 488 fi
 489
 490 # Recognize --with-newlib/--without-newlib.
 491 if [ x${with_newlib} = xno ]; then
 492   skipdirs="${skipdirs} target-newlib"
 493 elif [ x${with_newlib} = xyes ]; then
 494   skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 495 fi
 496
 497 # Default to using --with-stabs for certain targets.
 498 if [ x${with_stabs} = x ]; then
 499   case "${target}" in
 500   mips*-*-irix6*)
 501     ;;
 502   mips*-*-* | alpha*-*-osf*)
 503     with_stabs=yes;
 504     withoptions="${withoptions} --with-stabs"
 505     ;;
 506   esac
 507 fi
 508
 509 # Handle ${copy_dirs}
 510 set fnord ${copy_dirs}
 511 shift
 512 while [ $# != 0 ]; do
 513   if [ -f $2/COPIED ] && [ x"`cat $2/COPIED`" = x"$1" ]; then
 514     :
 515   else
 516     echo Copying $1 to $2
 517
 518     # Use the install script to create the directory and all required
 519     # parent directories.
 520     if [ -d $2 ]; then
 521       :
 522     else
 523       echo >config.temp
 524       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
 525     fi
 526
 527     # Copy the directory, assuming we have tar.
 528     # FIXME: Should we use B in the second tar?  Not all systems support it.
 529     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 530
 531     # It is the responsibility of the user to correctly adjust all
 532     # symlinks.  If somebody can figure out how to handle them correctly
 533     # here, feel free to add the code.
 534
 535     echo $1 > $2/COPIED
 536   fi
 537   shift; shift
 538 done
 539
 540 # Configure extra directories which are host specific
 541
 542 case "${host}" in
 543         i[3456]86-*-go32*)
 544           configdirs="$configdirs dosrel" ;;
 545         i[3456]86-*-mingw32*)
 546           configdirs="$configdirs dosrel" ;;
 547         *-cygwin*)
 548           configdirs="$configdirs libtermcap dosrel" ;;
 549 esac
 550
 551 # Remove more programs from consideration, based on the host or
 552 # target this usually means that a port of the program doesn't
 553 # exist yet.
 554
 555 noconfigdirs=""
 556
 557 case "${host}" in
 558   hppa*64*-*-*)
 559     noconfigdirs="$noconfigdirs byacc"
 560     ;;
 561   i[3456]86-*-vsta)
 562     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl apache inet itcl tix db snavigator gnuserv gettext"
 563     ;;
 564   i[3456]86-*-go32* | i[3456]86-*-msdosdjgpp*)
 565     noconfigdirs="tcl tk expect dejagnu send-pr uudecode guile apache inet itcl tix db snavigator gnuserv libffi"
 566         ;;
 567   i[3456]86-*-mingw32*)
 568     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl apache inet itcl tix db snavigator gnuserv"
 569      noconfigdirs="expect dejagnu cvs autoconf automake send-pr rcs guile perl texinfo apache inet libtool"
 570         ;;
 571   i[3456]86-*-beos*)
 572      noconfigdirs="$noconfigdirs tk itcl tix libgui gdb"
 573      ;;
 574   *-*-cygwin*)
 575      noconfigdirs="autoconf automake send-pr rcs guile perl texinfo apache inet"
 576     ;;
 577   *-*-netbsd*)
 578     noconfigdirs="rcs"
 579     ;;
 580   ppc*-*-pe)
 581      noconfigdirs="patch diff make tk tcl expect dejagnu cvssrc autoconf automake texinfo bison send-pr gprof rcs guile perl apache inet itcl tix db snavigator gnuserv"
 582     ;;
 583   powerpc-*-beos*)
 584     noconfigdirs="$noconfigdirs tk itcl tix libgui gdb dejagnu readline"
 585     ;;
 586 esac
 587
 588 case "${target}" in
 589   *-*-netware)
 590     noconfigdirs="$noconfigdirs target-libg++ ${libstdcxx_version} target-librx target-newlib target-libiberty target-libgloss ${libgcj}"
 591     ;;
 592   *-*-rtems*)
 593     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 594     ;;
 595   *-*-vxworks*)
 596     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 597     ;;
 598   alpha*-dec-osf*)
 599     # ld works, but does not support shared libraries.  emacs doesn't
 600     # work.  newlib is not 64 bit ready.  I'm not sure about fileutils.
 601     # gas doesn't generate exception information.
 602     noconfigdirs="$noconfigdirs gas ld emacs fileutils target-newlib target-libgloss ${libgcj}"
 603     ;;
 604   alpha*-*-*vms*)
 605     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 606     ;;
 607   alpha*-*-linux*)
 608     # newlib is not 64 bit ready
 609     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 610     # linux has rx in libc
 611     skipdirs="$skipdirs target-librx"
 612     ;;
 613   alpha*-*-*)
 614     # newlib is not 64 bit ready
 615     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 616     ;;
 617   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 618     noconfigdirs="$noconfigdirs ${libgcj}"
 619     noconfigdirs="$noconfigdirs target-examples"
 620     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 621     noconfigdirs="$noconfigdirs tcl tix tk itcl libgui sim"
 622     noconfigdirs="$noconfigdirs expect dejagnu"
 623     # the C++ libraries don't build on top of CE's C libraries
 624     noconfigdirs="$noconfigdirs ${libstdcxx_version}"
 625     skipdirs="$skipdirs target-newlib"
 626     case "${host}" in
 627       *-*-cygwin*) ;; # keep gdb and readline
 628       *) noconfigdirs="$noconfigdirs gdb readline ${libstdcxx_version}"
 629          ;;
 630     esac
 631     ;;
 632   arc-*-*)
 633     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 634     ;;
 635   arm-*-pe*)
 636     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 637     ;;
 638   arm-*-coff*)
 639     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 640     if [ x${is_cross_compiler} != xno ] ; then
 641            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 642     fi
 643     ;;
 644   arm-*-elf*)
 645     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 646     if [ x${is_cross_compiler} != xno ] ; then
 647            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 648     fi
 649     ;;
 650   arm-*-oabi*)
 651     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 652     ;;
 653   c4x-*-*)
 654     noconfigdirs="$noconfigdirs target-libg++ ${libstdcxx_version} target-librx target-libgloss ${libgcj}"
 655     ;;
 656   c54x*-*-* | tic54x-*-*)
 657     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss ${libgcj} gcc gdb newlib"
 658     ;;
 659   thumb-*-coff)
 660     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 661     ;;
 662   thumb-*-elf)
 663     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 664     ;;
 665   thumb-*-oabi)
 666     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 667     ;;
 668   strongarm-*-elf)
 669     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 670     if [ x${is_cross_compiler} != xno ] ; then
 671            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 672     fi
 673     ;;
 674   strongarm-*-coff)
 675     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 676     if [ x${is_cross_compiler} != xno ] ; then
 677            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 678     fi
 679     ;;
 680   xscale-*-elf)
 681     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 682     if [ x${is_cross_compiler} != xno ] ; then
 683            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 684     fi
 685     ;;
 686   xscale-*-coff)
 687     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 688     if [ x${is_cross_compiler} != xno ] ; then
 689            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 690     fi
 691     ;;
 692   thumb-*-pe)
 693     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 694     ;;
 695   arm-*-riscix*)
 696     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 697     ;;
 698   d10v-*-*)
 699     noconfigdirs="$noconfigdirs target-librx target-libg++ ${libstdcxx_version} target-libgloss ${libgcj}"
 700     ;;
 701   d30v-*-*)
 702     noconfigdirs="${libgcj}"
 703     ;;
 704   fr30-*-elf*)
 705     noconfigdirs="${libgcj}"
 706     if [ x${is_cross_compiler} != xno ] ; then
 707            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 708     fi
 709     ;;
 710   h8300*-*-* | \
 711   h8500-*-*)
 712     noconfigdirs="$noconfigdirs target-libg++ ${libstdcxx_version} target-librx target-libgloss ${libgcj}"
 713     ;;
 714   hppa*-*-*elf* | \
 715   hppa*-*-linux* | \
 716   hppa*-*-lites* | \
 717   hppa*64*-*-*)
 718     noconfigdirs="${libgcj}"
 719     # Do configure ld/binutils/gas for this case.
 720     ;;
 721   hppa*-*-*)
 722     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 723     # cc is gcc, and on any system a user should be able to link cc to
 724     # whatever they want.  FIXME, emacs emacs19).
 725     case "${CC}" in
 726         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 727         *) ;;
 728     esac
 729     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 730     ;;
 731   ia64*-*-elf*)
 732     # No gdb support yet.
 733     noconfigdirs="$noconfigdirs tix readline mmalloc libgui itcl gdb"
 734     ;;
 735   i[3456]86-*-coff | i[3456]86-*-elf)
 736     noconfigdirs="${libgcj}"
 737     if [ x${is_cross_compiler} != xno ] ; then
 738          target_configdirs="${target_configdirs} target-libstub target-cygmon"
 739     fi
 740     ;;
 741   *-*-linux*)
 742     noconfigdirs="${libgcj}"
 743     # linux has rx in libc
 744     skipdirs="$skipdirs target-librx"
 745     ;;
 746   i[3456]86-*-mingw32*)
 747     target_configdirs="$target_configdirs target-mingw"
 748     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 749
 750     # Can't build gdb for mingw32 if not native.
 751     case "${host}" in
 752       i[3456]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 753       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix db snavigator gnuserv"
 754          ;;
 755     esac
 756     ;;
 757   *-*-cygwin*)
 758     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 759     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 760     # always build newlib.
 761     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 762
 763     # Can't build gdb for Cygwin if not native.
 764     case "${host}" in
 765       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 766       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix libgui db snavigator gnuserv"
 767          ;;
 768     esac
 769     ;;
 770   i[3456]86-*-pe)
 771     noconfigdirs="$noconfigdirs target-libg++ ${libstdcxx_version} target-librx target-libgloss ${libgcj}"
 772     ;;
 773   i[3456]86-*-sco3.2v5*)
 774     # The linker does not yet know about weak symbols in COFF,
 775     # and is not configured to handle mixed ELF and COFF.
 776     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 777     ;;
 778   i[3456]86-*-sco*)
 779     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 780     ;;
 781   i[3456]86-*-solaris2*)
 782     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 783     ;;
 784   i[3456]86-*-sysv4*)
 785     # The SYSV4 C compiler doesn't handle Emacs correctly
 786     case "${CC}" in
 787         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 788         *) ;;
 789     esac
 790     # but that's okay since emacs doesn't work anyway
 791     noconfigdirs="$noconfigdirs emacs emacs19 target-libgloss ${libgcj}"
 792     ;;
 793   i[3456]86-*-beos*)
 794      noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 795      ;;
 796   m68k-*-elf*)
 797     noconfigdirs="${libgcj}"
 798     if [ x${is_cross_compiler} != xno ] ; then
 799            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 800     fi
 801     ;;
 802   m68k-*-coff*)
 803     noconfigdirs="${libgcj}"
 804     if [ x${is_cross_compiler} != xno ] ; then
 805            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 806     fi
 807     ;;
 808   mn10200-*-*)
 809     noconfigdirs="$noconfigdirs ${libgcj}"
 810     if [ x${is_cross_compiler} != xno ] ; then
 811            target_configdirs="${target_configdirs} target-libstub target-cygmon"
 812     fi
 813     ;;
 814   mn10300-*-*)
 815     noconfigdirs="$noconfigdirs ${libgcj}"
 816     if [ x${is_cross_compiler} != xno ] ; then
 817            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 818     fi
 819     ;;
 820   powerpc-*-aix*)
 821     # copied from rs6000-*-* entry
 822     # The configure and build of ld are currently disabled because
 823     # GNU ld is known to be broken for AIX 4.2 and 4.3 (at least)
 824     # The symptom is that GDBtk 4.18 fails at startup with a segfault
 825     # if linked by GNU ld, but not if linked by the native ld.
 826     noconfigdirs="$noconfigdirs gprof cvssrc target-libgloss ${libgcj} ld"
 827     use_gnu_ld=no
 828     ;;
 829   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 830     target_configdirs="$target_configdirs target-winsup"
 831     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl tix db snavigator gnuserv ${libgcj}"
 832     # always build newlib.
 833     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 834     ;;
 835     # This is temporary until we can link against shared libraries
 836   powerpcle-*-solaris*)
 837     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl tix db snavigator gnuserv ${libgcj}"
 838     ;;
 839   powerpc-*-beos*)
 840     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 841     ;;
 842   powerpc-*-eabi)
 843     noconfigdirs="${libgcj}"
 844     if [ x${is_cross_compiler} != xno ] ; then
 845            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 846     fi
 847     ;;
 848   rs6000-*-lynxos*)
 849     # The CVS server code doesn't work on the RS/6000
 850     noconfigdirs="$noconfigdirs target-newlib gprof cvssrc ${libgcj}"
 851     ;;
 852   rs6000-*-aix*)
 853     # The configure and build of ld are currently disabled because
 854     # GNU ld is known to be broken for AIX 4.2 and 4.3 (at least)
 855     # The symptom is that GDBtk 4.18 fails at startup with a segfault
 856     # if linked by GNU ld, but not if linked by the native ld.
 857     noconfigdirs="$noconfigdirs gprof ld ${libgcj}"
 858     use_gnu_ld=no
 859     ;;
 860   rs6000-*-*)
 861     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 862     ;;
 863   m68k-apollo-*)
 864     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 865     ;;
 866   mips*-*-irix5*)
 867     # The GNU linker does not support shared libraries.
 868     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 869     noconfigdirs="$noconfigdirs ld gprof emacs target-libgloss ${libgcj}"
 870     ;;
 871   mips*-*-irix6*)
 872     # The GNU assembler does not support IRIX 6.
 873     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 874     noconfigdirs="$noconfigdirs gas gprof emacs target-libgloss ${libgcj}"
 875     ;;
 876   mips*-dec-bsd*)
 877     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 878     ;;
 879   mips*-*-bsd*)
 880     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 881     ;;
 882   mipstx39-*-*)
 883     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 884     target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 885    ;;
 886   mips*-*-*)
 887     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 888     ;;
 889   romp-*-*)
 890     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 891     ;;
 892   sh-*-*)
 893     case "${host}" in
 894       i[3456]86-*-vsta) ;; # don't add gprof back in
 895       i[3456]86-*-go32*) ;; # don't add gprof back in
 896       i[3456]86-*-msdosdjgpp*) ;; # don't add gprof back in
 897       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 898     esac
 899     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 900     ;;
 901   sparc-*-elf*)
 902     noconfigdirs="${libgcj}"
 903     if [ x${is_cross_compiler} != xno ] ; then
 904            target_configdirs="${target_configdirs} target-libstub target-cygmon"
 905     fi
 906     ;;
 907   sparc64-*-elf*)
 908     if [ x${is_cross_compiler} != xno ] ; then
 909            target_configdirs="${target_configdirs} target-libstub target-cygmon"
 910     fi
 911     noconfigdirs="${libgcj}"
 912     ;;
 913   sparclite-*-*)
 914     if [ x${is_cross_compiler} != xno ] ; then
 915            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 916     fi
 917     noconfigdirs="${libgcj}"
 918     ;;
 919   sparc-*-sunos4*)
 920     noconfigdirs="${libgcj}"
 921     if [ x${is_cross_compiler} != xno ] ; then
 922            noconfigdirs="$noconfigdirs gdb gdbtest target-newlib target-libgloss"
 923     else
 924            use_gnu_ld=no
 925     fi
 926     ;;
 927   v810-*-*)
 928     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libg++ ${libstdcxx_version} opcodes target-libgloss ${libgcj}"
 929     ;;
 930   v850-*-*)
 931     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 932     ;;
 933   v850e-*-*)
 934     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 935     ;;
 936   v850ea-*-*)
 937     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 938     ;;
 939   vax-*-vms)
 940     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 941     ;;
 942   vax-*-*)
 943     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 944     ;;
 945   *-*-lynxos*)
 946     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 947     ;;
 948   *-*-macos* | \
 949   *-*-mpw*)
 950     # Macs want a resource compiler.
 951     configdirs="$configdirs grez"
 952     noconfigdirs="${libgcj}"
 953     ;;
 954   *-*-*)
 955     noconfigdirs="${libgcj}"
 956     ;;
 957 esac
 958
 959 # If we aren't building newlib, then don't build libgloss, since libgloss
 960 # depends upon some newlib header files.
 961 case "${noconfigdirs}" in
 962   *target-libgloss*) ;;
 963   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 964 esac
 965
 966 # Make sure we don't let GNU ld be added if we didn't want it.
 967 if [ x$with_gnu_ld = xno ]; then
 968   use_gnu_ld=no
 969   noconfigdirs="$noconfigdirs ld"
 970 fi
 971
 972 # Make sure we don't let GNU as be added if we didn't want it.
 973 if [ x$with_gnu_as = xno ]; then
 974   use_gnu_as=no
 975   noconfigdirs="$noconfigdirs gas"
 976 fi
 977
 978 # Figure out what language subdirectories are present.
 979 # Look if the user specified --enable-languages="..."; if not, use
 980 # the environment variable $LANGUAGES if defined. $LANGUAGES might
 981 # go away some day.
 982 if test x"${enable_languages+set}" != xset; then
 983         if test x"${LANGUAGES+set}" = xset; then
 984                 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
 985         else
 986                 enable_languages=all
 987         fi
 988 else
 989         if test x"${enable_languages}" = x; then
 990                 echo configure.in: --enable-languages needs at least one argument 1>&2
 991                 exit 1
 992         fi
 993 fi
 994 subdirs=
 995 for lang in ${srcdir}/gcc/*/config-lang.in ..
 996 do
 997         case $lang in
 998         ..) ;;
 999         # The odd quoting in the next line works around
1000         # an apparent bug in bash 1.12 on linux.
1001         ${srcdir}/gcc/[*]/config-lang.in) ;;
1002         *)
1003           lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^   ]*\).*$,\1,p' $lang`
1004           this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^         ]*\).*$,\1,p' $lang`
1005           this_lang_dirs=`sed -n -e 's,^lang_dirs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_dirs=\([^     ]*\).*$,\1,p' $lang`
1006           build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^     ]*\).*$,\1,p' $lang`
1007           if test "x$lang_alias" = x
1008           then
1009                 echo "$lang doesn't set \$language." 1>&2
1010                 exit 1
1011           fi
1012           case ${build_by_default},${enable_languages}, in
1013           *,$lang_alias,*) add_this_lang=yes ;;
1014           no,*) add_this_lang=no ;;
1015           *,all,*) add_this_lang=yes ;;
1016           *) add_this_lang=no ;;
1017           esac
1018           if test x"${add_this_lang}" = xyes; then
1019               eval target_libs='"$target_libs "'\"$this_lang_libs\"
1020           else
1021               eval noconfigdirs='"$noconfigdirs "'\"$this_lang_libs $this_lang_dirs\"
1022           fi
1023           ;;
1024         esac
1025 done
1026
1027
1028 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
1029 # $target_configdirs.
1030 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1031
1032 notsupp=""
1033 for dir in . $skipdirs $noconfigdirs ; do
1034   dirname=`echo $dir | sed -e s/target-//g`
1035   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1036     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1037     if [ -r $srcdir/$dirname/configure ] \
1038         || [ -r $srcdir/$dirname/configure.in ]; then
1039       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1040         true
1041       else
1042         notsupp="$notsupp $dir"
1043       fi
1044     fi
1045   fi
1046   if [ $dir != . ]  && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1047     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1048     if [ -r $srcdir/$dirname/configure ] \
1049         || [ -r $srcdir/$dirname/configure.in ]; then
1050       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1051         true
1052       else
1053         notsupp="$notsupp $dir"
1054       fi
1055     fi
1056   fi
1057 done
1058
1059 # Sometimes the tools are distributed with libiberty but with no other
1060 # libraries.  In that case, we don't want to build target-libiberty.
1061 if [ -n "${target_configdirs}" ]; then
1062   others=
1063   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1064     if [ "$i" != "libiberty" ]; then
1065       if [ -r $srcdir/$i/configure ] || [ -r $srcdir/$i/configure.in ]; then
1066         others=yes;
1067         break;
1068       fi
1069     fi
1070   done
1071   if [ -z "${others}" ]; then
1072     target_configdirs=
1073   fi
1074 fi
1075
1076 # Deconfigure all subdirectories, in case we are changing the
1077 # configuration from one where a subdirectory is supported to one where it
1078 # is not.
1079 if [ -z "${norecursion}" ] && [ -n "${configdirs}" ]; then
1080   for i in `echo ${configdirs} | sed -e s/target-//g` ; do
1081     rm -f $i/Makefile
1082   done
1083 fi
1084 if [ -z "${norecursion}" ] && [ -n "${target_configdirs}" ]; then
1085   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1086     rm -f ${target_subdir}/$i/Makefile
1087   done
1088 fi
1089
1090 # Produce a warning message for the subdirs we can't configure.
1091 # This isn't especially interesting in the Cygnus tree, but in the individual
1092 # FSF releases, it's important to let people know when their machine isn't
1093 # supported by the one or two programs in a package.
1094
1095 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
1096   # If $appdirs is non-empty, at least one of those directories must still
1097   # be configured, or we error out.  (E.g., if the gas release supports a
1098   # specified target in some subdirs but not the gas subdir, we shouldn't
1099   # pretend that all is well.)
1100   if [ -n "$appdirs" ]; then
1101     for dir in $appdirs ; do
1102       if [ -r $dir/Makefile.in ]; then
1103         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1104           appdirs=""
1105           break
1106         fi
1107         if echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1108           appdirs=""
1109           break
1110         fi
1111       fi
1112     done
1113     if [ -n "$appdirs" ]; then
1114       echo "*** This configuration is not supported by this package." 1>&2
1115       exit 1
1116     fi
1117   fi
1118   # Okay, some application will build, or we don't care to check.  Still
1119   # notify of subdirs not getting built.
1120   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1121   echo "    ${notsupp}" 1>&2
1122   echo "    (Any other directories should still work fine.)" 1>&2
1123 fi
1124
1125 # Set with_gnu_as and with_gnu_ld as appropriate.
1126 #
1127 # This is done by determining whether or not the appropriate directory
1128 # is available, and by checking whether or not specific configurations
1129 # have requested that this magic not happen.
1130 #
1131 # The command line options always override the explicit settings in
1132 # configure.in, and the settings in configure.in override this magic.
1133 #
1134 # If the default for a toolchain is to use GNU as and ld, and you don't
1135 # want to do that, then you should use the --without-gnu-as and
1136 # --without-gnu-ld options for the configure script.
1137
1138 if [ x${use_gnu_as} = x ] ; then
1139   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
1140     with_gnu_as=yes
1141     withoptions="$withoptions --with-gnu-as"
1142   fi
1143 fi
1144
1145 if [ x${use_gnu_ld} = x ] ; then
1146   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
1147     with_gnu_ld=yes
1148     withoptions="$withoptions --with-gnu-ld"
1149   fi
1150 fi
1151
1152 # If using newlib, add --with-newlib to the withoptions so that gcc/configure
1153 # can detect this case.
1154
1155 if [ x${with_newlib} != xno ] && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 && [ -d ${srcdir}/newlib ] ; then
1156   with_newlib=yes
1157   withoptions="$withoptions --with-newlib"
1158 fi
1159
1160 if [ x${shared} = xyes ]; then
1161   case "${target}" in
1162     hppa*)
1163       target_makefile_frag="${target_makefile_frag} config/mt-papic"
1164       ;;
1165     i[3456]86-*)
1166       target_makefile_frag="${target_makefile_frag} config/mt-x86pic"
1167       ;;
1168     ia64-*)
1169       target_makefile_frag="${target_makefile_frag} config/mt-ia64pic"
1170       ;;
1171     powerpc*-*-aix*)
1172       # We don't want -fPIC on AIX.
1173       ;;
1174     powerpc*-*)
1175       target_makefile_frag="${target_makefile_frag} config/mt-ppcpic"
1176       ;;
1177     alpha*-*-linux*)
1178       target_makefile_frag="${target_makefile_frag} config/mt-elfalphapic"
1179       ;;
1180     *)
1181       if test -f ${srcdir}/config/mt-${target_cpu}pic; then
1182         target_makefile_frag="${target_makefile_frag} config/mt-${target_cpu}pic"
1183       fi
1184       ;;
1185   esac
1186 fi
1187
1188 rm -f mt-frag
1189 if [ -n "${target_makefile_frag}" ] ; then
1190   for f in ${target_makefile_frag}
1191   do
1192     cat ${srcdir}/$f >> mt-frag
1193   done
1194   target_makefile_frag=mt-frag
1195 fi
1196
1197 # post-target:
1198
1199 # Make sure that the compiler is able to generate an executable.  If it
1200 # can't, we are probably in trouble.  We don't care whether we can run the
1201 # executable--we might be using a cross compiler--we only care whether it
1202 # can be created.  At this point the main configure script has set CC.
1203 echo "int main () { return 0; }" > conftest.c
1204 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1205 if [ $? = 0 ] && [ -s conftest -o -s conftest.exe ]; then
1206   :
1207 else
1208   echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1209   echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1210   rm -f conftest*
1211   exit 1
1212 fi
1213 rm -f conftest*
1214
1215 # The Solaris /usr/ucb/cc compiler does not appear to work.
1216 case "${host}" in
1217   sparc-sun-solaris2*)
1218       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1219       if [ "`/usr/bin/which $CCBASE`" = "/usr/ucb/cc" ] ; then
1220           could_use=
1221           [ -d /opt/SUNWspro/bin ] && could_use="/opt/SUNWspro/bin"
1222           if [ -d /opt/cygnus/bin ] ; then
1223               if [ "$could_use" = "" ] ; then
1224                   could_use="/opt/cygnus/bin"
1225               else
1226                   could_use="$could_use or /opt/cygnus/bin"
1227               fi
1228           fi
1229         if [ "$could_use" = "" ] ; then
1230             echo "Warning: compilation may fail because you're using"
1231             echo "/usr/ucb/cc.  You should change your PATH or CC "
1232             echo "variable and rerun configure."
1233         else
1234             echo "Warning: compilation may fail because you're using"
1235             echo "/usr/ucb/cc, when you should use the C compiler from"
1236             echo "$could_use.  You should change your"
1237             echo "PATH or CC variable and rerun configure."
1238         fi
1239       fi
1240   ;;
1241 esac
1242
1243 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
1244 # binutils tools will find libbfd.so.
1245 if [ "${shared}" = "yes" ]; then
1246   sed -e 's/^SET_LIB_PATH[      ]*=.*$/SET_LIB_PATH = $(REALLY_SET_LIB_PATH)/' \
1247       Makefile > Makefile.tem
1248   rm -f Makefile
1249   mv -f Makefile.tem Makefile
1250
1251   case "${host}" in
1252   *-*-hpux*)
1253     sed -e 's/^RPATH_ENVVAR[    ]*=.*$/RPATH_ENVVAR = SHLIB_PATH/' \
1254         Makefile > Makefile.tem
1255     rm -f Makefile
1256     mv -f Makefile.tem Makefile
1257     ;;
1258   esac
1259 fi
1260
1261 # Record target_configdirs and the configure arguments in Makefile.
1262 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1263 targargs=`echo "${arguments}" | \
1264         sed -e 's/--no[^        ]*//' \
1265             -e 's/--cache[a-z-]*=[^     ]*//' \
1266             -e 's/--ho[a-z-]*=[^        ]*//' \
1267             -e 's/--bu[a-z-]*=[^        ]*//' \
1268             -e 's/--ta[a-z-]*=[^        ]*//'`
1269
1270 # Passing a --with-cross-host argument lets the target libraries know
1271 # whether they are being built with a cross-compiler or being built
1272 # native.  However, it would be better to use other mechanisms to make the
1273 # sorts of decisions they want to make on this basis.  Please consider
1274 # this option to be deprecated.  FIXME.
1275 if [ x${is_cross_compiler} = xyes ]; then
1276   targargs="--with-cross-host=${host_alias} ${targargs}"
1277 fi
1278
1279 # Default to --enable-multilib.
1280 if [ x${enable_multilib} = x ]; then
1281   targargs="--enable-multilib ${targargs}"
1282 fi
1283
1284 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1285 # changed from the earlier setting of with_newlib.
1286 if [ x${with_newlib} != xno ] && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && [ -d ${srcdir}/newlib ] ; then
1287   targargs="--with-newlib ${targargs}"
1288 fi
1289
1290 # provide a proper gxx_include_dir.
1291 # Note, if you change the default, make sure to fix both here and in
1292 # the gcc, libio, libstdc++ and libg++ subdirectories.
1293 # Check whether --with-gxx-include-dir or --without-gxx-include-dir was given.
1294 gxx_include_dir=
1295 if test -n "${with_gxx_include_dir}"; then
1296   case "${with_gxx_include_dir}" in
1297     yes )
1298       echo "configure.in: error: bad value ${withval} given for g++ include directory" 1>&2
1299       exit 1
1300       ;;
1301     no )
1302       ;;
1303     * )
1304       gxx_include_dir=${with_gxx_include_dir}
1305       ;;
1306   esac
1307 fi
1308 if test x${gxx_include_dir} = x; then
1309   if test x${enable_version_specific_runtime_libs} = xyes; then
1310     gxx_include_dir='${libsubdir}/include/g++'
1311   else
1312     . ${topsrcdir}/config.if
1313     gxx_include_dir='${prefix}/include/${libstdcxx_incdir}'
1314   fi
1315 else
1316   gxx_include_dir=${gxx_include_dir}
1317 fi
1318
1319 FLAGS_FOR_TARGET=
1320 case " $skipdirs " in
1321 *" target-newlib "*) ;;
1322 *)
1323  case " $target_configdirs " in
1324  *" newlib "*)
1325   case " $targargs " in
1326   *" --with-newlib "*)
1327    case "$target" in
1328    *-cygwin*)
1329      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 -isystem $$s/newlib/libc/sys/cygwin -isystem $$s/newlib/libc/sys/cygwin32' ;;
1330    esac
1331
1332    # If we're not building GCC, don't discard standard headers.
1333    if test -d ${topsrcdir}/gcc; then
1334      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1335
1336      if test "${build}" != "${host}"; then
1337        # On Canadian crosses, CC_FOR_TARGET will have already been set
1338        # by `configure', so we won't have an opportunity to add -Bgcc/
1339        # to it.  This is right: we don't want to search that directory
1340        # for binaries, but we want the header files in there, so add
1341        # them explicitly.
1342        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/gcc/include'
1343
1344        # Someone might think of using the pre-installed headers on
1345        # Canadian crosses, in case the installed compiler is not fully
1346        # compatible with the compiler being built.  In this case, it
1347        # would be better to flag an error than risking having
1348        # incompatible object files being constructed.  We can't
1349        # guarantee that an error will be flagged, but let's hope the
1350        # compiler will do it, when presented with incompatible header
1351        # files.
1352      fi
1353    fi
1354
1355    # If we're building newlib, use its generic headers last, but search
1356    # for any libc-related directories first (so make it the last -B
1357    # switch).
1358    FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
1359    ;;
1360   esac
1361   ;;
1362  esac
1363  ;;
1364 esac
1365
1366 # On Canadian crosses, we'll be searching the right directories for
1367 # the previously-installed cross compiler, so don't bother to add
1368 # flags for directories within the install tree of the compiler
1369 # being built; programs in there won't even run.
1370 if test "${build}" = "${host}" && test -d ${topsrcdir}/gcc; then
1371   # Search for pre-installed headers if nothing else fits.
1372   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include'
1373 fi
1374
1375 if test "x${use_gnu_ld}" = x && test "x${with_gnu_ld}" != xno &&
1376    echo " ${configdirs} " | grep " ld " > /dev/null &&
1377    test -d ${srcdir}/ld; then
1378   # Arrange for us to find uninstalled linker scripts.
1379   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/ld'
1380 fi
1381
1382 if test "x${CC_FOR_TARGET+set}" = xset; then
1383   :
1384 elif test -d ${topsrcdir}/gcc; then
1385   CC_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/'
1386 elif test "$host" = "$target"; then
1387   CC_FOR_TARGET='$(CC)'
1388 else
1389   CC_FOR_TARGET=`echo gcc | sed -e 's/x/x/' ${program_transform_name}`
1390 fi
1391 # On Canadian crosses, configure reads CC_FOR_TARGET from Makefile,
1392 # if Makefile exists.  Prevent $(FLAGS_FOR_TARGET) from being duplicated.
1393 case $CC_FOR_TARGET in
1394 *' $(FLAGS_FOR_TARGET)') ;;
1395 *) CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
1396 esac
1397
1398 if test "x${CHILL_FOR_TARGET+set}" = xset; then
1399   :
1400 elif test -d ${topsrcdir}/gcc; then
1401   CHILL_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/ -L$$r/gcc/ch/runtime/'
1402 elif test "$host" = "$target"; then
1403   CHILL_FOR_TARGET='$(CC)'
1404 else
1405   CHILL_FOR_TARGET=`echo gcc | sed -e 's/x/x/' ${program_transform_name}`
1406 fi
1407 case $CHILL_FOR_TARGET in
1408 *' $(FLAGS_FOR_TARGET)') ;;
1409 *) CHILL_FOR_TARGET=$CHILL_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
1410 esac
1411
1412 if test "x${CXX_FOR_TARGET+set}" = xset; then
1413   :
1414 elif test -d ${topsrcdir}/gcc; then
1415   CXX_FOR_TARGET='$$r/gcc/g++ -B$$r/gcc/ -nostdinc++ '$libstdcxx_flags
1416 elif test "$host" = "$target"; then
1417   CXX_FOR_TARGET='$(CXX)'
1418 else
1419   CXX_FOR_TARGET=`echo c++ | sed -e 's/x/x/' ${program_transform_name}`
1420 fi
1421 case $CXX_FOR_TARGET in
1422 *' $(FLAGS_FOR_TARGET)') ;;
1423 *) CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
1424 esac
1425 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,&,\\\&,g'`
1426
1427 targargs="--cache-file=../config.cache --host=${target_alias} --build=${build_alias} ${targargs}"
1428 sed -e "s:^TARGET_CONFIGDIRS[   ]*=.*$:TARGET_CONFIGDIRS = ${target_configdirs}:" \
1429     -e "s%^CONFIG_ARGUMENTS[    ]*=.*$%CONFIG_ARGUMENTS = ${targargs}%" \
1430     -e "s%^FLAGS_FOR_TARGET[    ]*=.*$%FLAGS_FOR_TARGET = ${FLAGS_FOR_TARGET}%" \
1431     -e "s%^CC_FOR_TARGET[       ]*=.*$%CC_FOR_TARGET = ${CC_FOR_TARGET}%" \
1432     -e "s%^CHILL_FOR_TARGET[    ]*=.*$%CHILL_FOR_TARGET = ${CHILL_FOR_TARGET}%" \
1433     -e "s%^CXX_FOR_TARGET[      ]*=.*$%CXX_FOR_TARGET = ${qCXX_FOR_TARGET}%" \
1434     -e "s%^TARGET_SUBDIR[       ]*=.*$%TARGET_SUBDIR = ${target_subdir}%" \
1435     -e "s%^gxx_include_dir[     ]*=.*$%gxx_include_dir=${gxx_include_dir}%" \
1436        Makefile > Makefile.tem
1437 rm -f Makefile
1438 mv -f Makefile.tem Makefile
1439
1440 #
1441 # Local Variables:
1442 # fill-column: 131
1443 # End:
1444 #