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, 93, 94, 95, 1996 Free Software Foundation, Inc.
  18 #
  19 # This file is free software; you can redistribute it and/or modify it
  20 # under the terms of the GNU General Public License as published by
  21 # the Free Software Foundation; either version 2 of the License, or
  22 # (at your option) any later version.
  23 #
  24 # This program is distributed in the hope that it will be useful, but
  25 # WITHOUT ANY WARRANTY; without even the implied warranty of
  26 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  27 # General Public License for more details.
  28 #
  29 # You should have received a copy of the GNU General Public License
  30 # along with this program; if not, write to the Free Software
  31 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  32
  33 ##############################################################################
  34
  35 ### To add a new directory to the tree, first choose whether it is a target
  36 ### or a host dependent tool.  Then put it into the appropriate list
  37 ### (library or tools, host or target), doing a dependency sort.  For
  38 ### example, gdb requires that byacc (or bison) be built first, so it is in
  39 ### the ${host_tools} list after byacc and bison.
  40
  41
  42 # these libraries are used by various programs built for the host environment
  43 #
  44 host_libs="mmalloc libiberty opcodes bfd readline gash tcl tk tclX"
  45
  46 if [ "${enable_gdbgui}" = "yes" ] ; then
  47         host_libs="${host_libs} libgui"
  48 fi
  49
  50 # these tools are built for the host environment
  51 #
  52 host_tools="texinfo byacc flex bison binutils ld gas gcc gdb make patch
  53             prms send-pr gprof gdbtest tgas etc expect dejagnu sim bash
  54             m4 autoconf ispell grep diff rcs cvs fileutils shellutils time
  55             textutils wdiff find emacs emacs19 uudecode hello tar gzip indent
  56             recode release sed utils guile perl apache inet gawk"
  57
  58
  59 # these libraries are built for the target environment, and are built after
  60 # the host libraries and the host tools (which may be a cross compiler)
  61 #
  62 target_libs="target-libiberty target-libgloss target-newlib target-libio target-librx target-libstdc++ target-libg++"
  63
  64
  65 # these tools are built using the target libs, and are intended to run only
  66 # in the target environment
  67 #
  68 # note: any program that *uses* libraries that are in the "target_libs"
  69 # list belongs in this list.  those programs are also very likely
  70 # candidates for the "native_only" list which follows
  71 #
  72 target_tools="target-examples target-groff"
  73
  74 ################################################################################
  75
  76 ## These two lists are of directories that are to be removed from the
  77 ## ${configdirs} list for either cross-compilations or for native-
  78 ## compilations.  For example, it doesn't make that much sense to
  79 ## cross-compile Emacs, nor is it terribly useful to compile target-libiberty in
  80 ## a native environment.
  81
  82 # directories to be built in the native environment only
  83 #
  84 native_only="autoconf cvs emacs emacs19 fileutils find gawk grep gzip hello
  85              indent ispell m4 rcs recode sed shellutils tar textutils gash
  86              uudecode wdiff gprof target-groff guile perl apache inet time
  87              bash prms"
  88
  89 # directories to be built in a cross environment only
  90 #
  91 cross_only="target-libiberty target-libgloss target-newlib"
  92
  93 ## All tools belong in one of the four categories, and are assigned above
  94 ## We assign ${configdirs} this way to remove all embedded newlines.  This
  95 ## is important because configure will choke if they ever get through.
  96 ## ${configdirs} is directories we build using the host tools.
  97 ## ${target_configdirs} is directories we build using the target tools.
  98 #
  99 configdirs=`echo ${host_libs} ${host_tools}`
 100 target_configdirs=`echo ${target_libs} ${target_tools}`
 101
 102 ################################################################################
 103
 104 srctrigger=move-if-change
 105 srcname="gnu development package"
 106
 107 # This gets set non-empty for some net releases of packages.
 108 appdirs=""
 109
 110 # per-host:
 111
 112 # Work in distributions that contain no compiler tools, like Autoconf.
 113 if [ -d ${srcdir}/config ]; then
 114 case "${host}" in
 115   m68k-hp-hpux*)          host_makefile_frag=config/mh-hp300 ;;
 116   m68k-apollo-sysv*)      host_makefile_frag=config/mh-apollo68 ;;
 117   m68k-apollo-bsd*)       host_makefile_frag=config/mh-a68bsd ;;
 118   m68k-*-linux*)          host_makefile_frag=config/mh-linux ;;
 119   m88k-dg-dgux*)          host_makefile_frag=config/mh-dgux ;;
 120   m88k-harris-cxux*)      host_makefile_frag=config/mh-cxux ;;
 121   m88k-motorola-sysv*)    host_makefile_frag=config/mh-delta88;;
 122   mips*-dec-ultrix*)      host_makefile_frag=config/mh-decstation ;;
 123   mips*-nec-sysv4*)       host_makefile_frag=config/mh-necv4 ;;
 124   mips*-sgi-irix6*)       host_makefile_frag=config/mh-irix6 ;;
 125   mips*-sgi-irix5*)       host_makefile_frag=config/mh-irix5 ;;
 126   mips*-sgi-irix4*)       host_makefile_frag=config/mh-irix4 ;;
 127   mips*-sgi-irix3*)       host_makefile_frag=config/mh-sysv ;;
 128   mips*-*-sysv4*)         host_makefile_frag=config/mh-sysv4 ;;
 129   mips*-*-sysv*)          host_makefile_frag=config/mh-riscos ;;
 130   i[345]86-ncr-sysv4.3)   host_makefile_frag=config/mh-ncrsvr43 ;;
 131   i[345]86-ncr-sysv4*)    host_makefile_frag=config/mh-ncr3000 ;;
 132   i[345]86-*-sco3.2v5*)   host_makefile_frag=config/mh-sysv ;;
 133   i[345]86-*-sco*)        host_makefile_frag=config/mh-sco ;;
 134   i[345]86-*-isc*)        host_makefile_frag=config/mh-sysv ;;
 135   i[345]86-*-linux*)      host_makefile_frag=config/mh-linux ;;
 136   i[345]86-*-solaris2*)   host_makefile_frag=config/mh-sysv4 ;;
 137   i[345]86-*-aix*)        host_makefile_frag=config/mh-aix386 ;;
 138   i[345]86-*-go32*)       host_makefile_frag=config/mh-go32 ;;
 139   *-cygwin32*)            host_makefile_frag=config/mh-cygwin32 ;;
 140   vax-*-ultrix2*)         host_makefile_frag=config/mh-vaxult2 ;;
 141   *-*-solaris2*)          host_makefile_frag=config/mh-solaris ;;
 142   m68k-sun-sunos*)        host_makefile_frag=config/mh-sun3 ;;
 143   *-hp-hpux[78]*)         host_makefile_frag=config/mh-hpux8 ;;
 144   *-hp-hpux*)             host_makefile_frag=config/mh-hpux ;;
 145   *-*-hiux*)              host_makefile_frag=config/mh-hpux ;;
 146   rs6000-*-lynxos*)       host_makefile_frag=config/mh-lynxrs6k ;;
 147   *-*-lynxos*)            host_makefile_frag=config/mh-lynxos ;;
 148   *-*-sysv4*)             host_makefile_frag=config/mh-sysv4 ;;
 149   *-*-sysv*)              host_makefile_frag=config/mh-sysv ;;
 150 esac
 151 fi
 152
 153 # If we aren't going to be using gcc, see if we can extract a definition
 154 # of CC from the fragment.
 155 if [ -z "${CC}" -a "${build}" = "${host}" ]; then
 156   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 157   found=
 158   for dir in $PATH; do
 159     test -z "$dir" && dir=.
 160     if test -f $dir/gcc; then
 161       found=yes
 162       break
 163     fi
 164   done
 165   IFS="$save_ifs"
 166   if [ -z "${found}" -a -n "${host_makefile_frag}" -a -f "${srcdir}/${host_makefile_frag}" ]; then
 167     xx=`sed -n -e 's/^[         ]*CC[   ]*=[    ]*\(.*\)$/\1/p' < ${srcdir}/${host_makefile_frag}`
 168     if [ -n "${xx}" ] ; then
 169       CC=$xx
 170     fi
 171   fi
 172 fi
 173
 174 # We default to --with-shared on platforms where -fpic is meaningless.
 175 # Well, we don't yet, but we will.
 176 if false && [ "${host}" = "${target}" ] && [ x${enable_shared} = x ]; then
 177   case "${target}" in
 178     alpha-dec-osf*)     enable_shared=yes ;;
 179     alpha-*-linux*)     enable_shared=yes ;;
 180     mips-sgi-irix5*)    enable_shared=yes ;;
 181     *)                  enable_shared=no ;;
 182   esac
 183 fi
 184
 185 case "${enable_shared}" in
 186   yes) shared=yes ;;
 187   no) shared=no ;;
 188   "") shared=no ;;
 189   *) shared=yes ;;
 190 esac
 191
 192 if [ x${shared} = xyes ]; then
 193   waugh=
 194   case "${host}" in
 195     hppa*)              waugh=config/mh-papic ;;
 196     i[345]86-*)         waugh=config/mh-x86pic ;;
 197     sparc64-*)          waugh=config/mh-sparcpic ;;
 198     *)                  waugh=config/mh-${host_cpu}pic ;;
 199   esac
 200   if [ -f ${srcdir}/${waugh} ]; then
 201     if [ -n "${host_makefile_frag}" ] ; then
 202       cat ${srcdir}/${host_makefile_frag} > mh-frag
 203       cat ${srcdir}/${waugh} >> mh-frag
 204       host_makefile_frag=mh-frag
 205     else
 206       host_makefile_frag=${waugh}
 207     fi
 208   fi
 209 fi
 210
 211 # per-target:
 212
 213 case "${target}" in
 214   v810*)                target_makefile_frag=config/mt-v810 ;;
 215   i[345]86-*-netware*)  target_makefile_frag=config/mt-netware ;;
 216   powerpc-*-netware*)   target_makefile_frag=config/mt-netware ;;
 217 esac
 218
 219 skipdirs=
 220 gasdir=gas
 221 use_gnu_ld=
 222 use_gnu_as=
 223
 224 # some tools are so dependent upon X11 that if we're not building with X,
 225 # it's not even worth trying to configure, much less build, that tool.
 226
 227 case ${with_x} in
 228   yes | "")  # the default value for this tree is that X11 is available
 229         ;;
 230   no)
 231         skipdirs="${skipdirs} tk gash"
 232         ;;
 233   *)
 234         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 235         ;;
 236 esac
 237
 238 # Some tools are only suitable for building in a "native" situation.
 239 # Those are added when we have a host==target configuration.  For cross
 240 # toolchains, we add some directories that should only be useful in a
 241 # cross-compiler.
 242
 243 is_cross_compiler=
 244
 245 if [ x"${host}" = x"${target}" ] ; then
 246         # when doing a native toolchain, don't build the targets
 247         # that are in the 'cross only' list
 248         skipdirs="${skipdirs} ${cross_only}"
 249         is_cross_compiler=no
 250         target_subdir=.
 251 else
 252         # similarly, don't build the targets in the 'native only'
 253         # list when building a cross compiler
 254         skipdirs="${skipdirs} ${native_only}"
 255         is_cross_compiler=yes
 256         target_subdir=${target_alias}
 257         if [ ! -d ${target_subdir} ] ; then
 258             if mkdir ${target_subdir} ; then true
 259             else
 260                 echo "'*** could not make ${PWD=`pwd`}/${target_subdir}" 1>&2
 261                 exit 1
 262             fi
 263         fi
 264 fi
 265
 266 copy_dirs=
 267
 268 # Handle --with-headers=XXX.  The contents of the named directory are
 269 # copied to $(tooldir)/sys-include.
 270 if [ x"${with_headers}" != x ]; then
 271   if [ x${is_cross_compiler} = xno ]; then
 272     echo 1>&2 '***' --with-headers is only supported when cross compiling
 273     exit 1
 274   fi
 275   case "${exec_prefixoption}" in
 276   "") x=${prefix} ;;
 277   *) x=${exec_prefix} ;;
 278   esac
 279   copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
 280 fi
 281
 282 # Handle --with-libs=XXX.  Multiple directories are permitted.  The
 283 # contents are copied to $(tooldir)/lib.
 284 if [ x"${with_libs}" != x ]; then
 285   if [ x${is_cross_compiler} = xno ]; then
 286     echo 1>&2 '***' --with-libs is only supported when cross compiling
 287     exit 1
 288   fi
 289   # Copy the libraries in reverse order, so that files in the first named
 290   # library override files in subsequent libraries.
 291   case "${exec_prefixoption}" in
 292   "") x=${prefix} ;;
 293   *) x=${exec_prefix} ;;
 294   esac
 295   for l in ${with_libs}; do
 296     copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 297   done
 298 fi
 299
 300 # If both --with-headers and --with-libs are specified, default to
 301 # --without-newlib.
 302 if [ x"${with_headers}" != x ] && [ x"${with_libs}" != x ]; then
 303   if [ x"${with_newlib}" = x ]; then
 304     with_newlib=no
 305   fi
 306 fi
 307
 308 # Recognize --with-newlib/--without-newlib.
 309 if [ x${with_newlib} = xno ]; then
 310   skipdirs="${skipdirs} target-newlib"
 311 elif [ x${with_newlib} = xyes ]; then
 312   skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 313 fi
 314
 315 # Default to using --with-stabs for certain targets.
 316 if [ x${with_stabs} = x ]; then
 317   case "${target}" in
 318   mips*-*-* | alpha*-*-osf* | i[345]86*-*-sysv4* | i[345]86*-*-unixware*)
 319     with_stabs=yes;
 320     withoptions="${withoptions} --with-stabs"
 321     ;;
 322   esac
 323 fi
 324
 325 # Handle ${copy_dirs}
 326 set fnord ${copy_dirs}
 327 shift
 328 while [ $# != 0 ]; do
 329   if [ -f $2/COPIED ] && [ x"`cat $2/COPIED`" = x"$1" ]; then
 330     :
 331   else
 332     echo Copying $1 to $2
 333
 334     # Use the install script to create the directory and all required
 335     # parent directories.
 336     if [ -d $2 ]; then
 337       :
 338     else
 339       echo >config.temp
 340       ${srcdir}/install.sh -c -m 644 config.temp $2/COPIED
 341     fi
 342
 343     # Copy the directory, assuming we have tar.
 344     # FIXME: Should we use B in the second tar?  Not all systems support it.
 345     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 346
 347     # It is the responsibility of the user to correctly adjust all
 348     # symlinks.  If somebody can figure out how to handle them correctly
 349     # here, feel free to add the code.
 350
 351     echo $1 > $2/COPIED
 352   fi
 353   shift; shift
 354 done
 355
 356 # Configure extra directories which are host specific
 357
 358 case "${host}" in
 359         i[345]86-*-go32*)
 360           configdirs="$configdirs dosrel" ;;
 361         *-cygwin32*)
 362           configdirs="$configdirs dosrel" ;;
 363 esac
 364
 365 # Remove more programs from consideration, based on the host or
 366 # target this usually means that a port of the program doesn't
 367 # exist yet.
 368
 369 noconfigdirs=""
 370
 371 case "${host}" in
 372   i[345]86-*-vsta)
 373     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl apache inet"
 374     ;;
 375   i[345]86-*-go32)
 376     noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl apache inet"
 377         ;;
 378   *-*-cygwin32)
 379      noconfigdirs="tk tcl expect dejagnu cvs autoconf bison send-pr gprof rcs guile perl texinfo apache inet"
 380     ;;
 381   ppc*-*-pe)
 382      noconfigdirs="patch diff make tk tcl expect dejagnu cvs autoconf texinfo bison send-pr gprof rcs guile perl apache inet"
 383     ;;
 384 esac
 385
 386
 387 case "${target}" in
 388   *-*-netware)
 389     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-librx target-newlib target-libiberty target-libgloss"
 390     ;;
 391   *-*-vxworks*)
 392     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 393     ;;
 394   alpha-dec-osf*)
 395     # ld works, but does not support shared libraries.  emacs doesn't
 396     # work.  newlib is not 64 bit ready.  I'm not sure about fileutils or grep.
 397     # gas doesn't generate exception information.
 398     noconfigdirs="$noconfigdirs gas ld emacs fileutils grep target-newlib target-libgloss"
 399     ;;
 400   alpha*-*-*vms*)
 401     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss"
 402     ;;
 403   alpha*-*-*)
 404     # newlib is not 64 bit ready
 405     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 406     ;;
 407 # start-sanitize-arc
 408   arc-*-*)
 409     noconfigdirs="$noconfigdirs target-libgloss"
 410     ;;
 411 # end-sanitize-arc
 412   arm-*-pe*)
 413     noconfigdirs="$noconfigdirs target-libgloss"
 414     ;;
 415   arm-*-riscix*)
 416     noconfigdirs="$noconfigdirs ld target-libgloss"
 417     ;;
 418 # start-sanitize-d10v
 419   d10v-*-*)
 420     noconfigdirs="$noconfigdirs gdb target-libgloss"
 421     ;;
 422 # end-sanitize-d10v
 423   h8300*-*-* | \
 424   h8500-*-*)
 425     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx target-libgloss"
 426     ;;
 427   hppa*-*-*elf* | \
 428   hppa*-*-lites*)
 429     # Do configure ld/binutils/gas for this case.
 430     ;;
 431   hppa*-*-*)
 432     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 433     # cc is gcc, and on any system a user should be able to link cc to
 434     # whatever they want.  FIXME, emacs emacs19).
 435     case "${CC}" in
 436         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 437         *) ;;
 438     esac
 439     noconfigdirs="$noconfigdirs ld shellutils"
 440     ;;
 441   i[345]86-*-go32)
 442     # but don't build gdb
 443     noconfigdirs="$noconfigdirs gdb target-libg++ target-libstdc++ target-libio target-librx"
 444     ;;
 445   *-*-cygwin32)
 446     target_configdirs="$target_configdirs target-winsup"
 447     noconfigdirs="$noconfigdirs tcl tk expect target-libgloss"
 448     # always build newlib.
 449     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 450
 451     # Can't build gdb for cygwin32 if not native.
 452     case "${host}" in
 453       *-*-cygwin32) ;; # keep gdb
 454       *) noconfigdirs="$noconfigdirs gdb"
 455     esac
 456     ;;
 457   i[345]86-*-pe)
 458     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx target-libgloss"
 459     ;;
 460   i[345]86-*-sco3.2v5*)
 461     # The linker does not yet know about weak symbols in COFF,
 462     # and is not configured to handle mixed ELF and COFF.
 463     noconfigdirs="$noconfigdirs gprof ld target-libgloss"
 464     ;;
 465   i[345]86-*-sco*)
 466     noconfigdirs="$noconfigdirs gprof target-libgloss"
 467     ;;
 468   i[345]86-*-solaris2*)
 469     # The linker does static linking correctly, but the Solaris C library
 470     # has bugs such that some important functions won't work when statically
 471     # linked.  (See man pages for getpwuid, for example.)
 472     noconfigdirs="$noconfigdirs ld target-libgloss"
 473     ;;
 474   i[345]86-*-sysv4*)
 475     # The SYSV4 C compiler doesn't handle Emacs correctly
 476     case "${CC}" in
 477         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 478         *) ;;
 479     esac
 480     # but that's okay since emacs doesn't work anyway
 481     noconfigdirs="$noconfigdirs emacs emacs19 target-libgloss"
 482     ;;
 483   powerpc-*-aix*)
 484     # copied from rs6000-*-* entry
 485     noconfigdirs="$noconfigdirs gprof cvs target-libgloss"
 486     # This is needed until gcc and ld are fixed to work together.
 487     use_gnu_ld=no
 488     ;;
 489   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 490     target_configdirs="$target_configdirs target-winsup"
 491     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss"
 492     # always build newlib.
 493     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 494     ;;
 495     # This is temporary until we can link against shared libraries
 496   powerpcle-*-solaris*)
 497     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect"
 498     ;;
 499   rs6000-*-lynxos*)
 500     # The CVS server code doesn't work on the RS/6000
 501     # Newlib makes problems for libg++ in crosses.
 502     noconfigdirs="$noconfigdirs target-newlib gprof cvs"
 503     ;;
 504   rs6000-*-aix*)
 505     noconfigdirs="$noconfigdirs gprof"
 506     # This is needed until gcc and ld are fixed to work together.
 507     use_gnu_ld=no
 508     ;;
 509   rs6000-*-*)
 510     noconfigdirs="$noconfigdirs gprof"
 511     ;;
 512   m68k-apollo-*)
 513     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
 514     ;;
 515   mips*-*-irix5*)
 516     # The GNU linker does not support shared libraries.
 517     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 518     noconfigdirs="$noconfigdirs ld gprof emacs target-libgloss"
 519     ;;
 520   mips*-*-irix6*)
 521     # The GNU linker does not support shared libraries.
 522     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 523     # BFD does not have Irix 6 support yet.
 524     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb readline mmalloc sim gprof emacs target-libgloss"
 525     ;;
 526   mips*-dec-bsd*)
 527     noconfigdirs="$noconfigdirs gprof target-libgloss"
 528     ;;
 529   mips*-*-bsd*)
 530     noconfigdirs="$noconfigdirs gprof target-libgloss"
 531     ;;
 532   mips*-*-*)
 533     noconfigdirs="$noconfigdirs gprof"
 534     ;;
 535   romp-*-*)
 536     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss"
 537     ;;
 538   sh-*-*)
 539     case "${host}" in
 540       i[345]86-*-vsta) ;; # don't add gprof back in
 541       i[345]86-*-go32) ;; # don't add gprof back in
 542       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 543     esac
 544     noconfigdirs="$noconfigdirs target-libgloss"
 545     ;;
 546   sparc-*-sunos4*)
 547     if [ x${is_cross_compiler} != xno ] ; then
 548            noconfigdirs="$noconfigdirs gdb gdbtest target-newlib target-libgloss"
 549     else
 550            use_gnu_ld=no
 551     fi
 552     ;;
 553   v810-*-*)
 554     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libio target-libg++ target-libstdc++ opcodes target-libgloss"
 555     ;;
 556   vax-*-vms)
 557     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss"
 558     ;;
 559   vax-*-*)
 560     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 561     ;;
 562   *-*-lynxos*)
 563     # Newlib makes problems for libg++ in crosses.
 564     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 565     ;;
 566   *-*-macos* | \
 567   *-*-mpw*)
 568     # Macs want a resource compiler.
 569     configdirs="$configdirs grez"
 570     ;;
 571 esac
 572
 573 # targets that need a second pass
 574 case "${target}" in
 575   *-gm-magic*)
 576     noconfigdirs="$noconfigdirs target-libgloss"
 577     ;;
 578 esac
 579
 580 # If we aren't building newlib, then don't build libgloss, since libgloss
 581 # depends upon some newlib header files.
 582 case "${noconfigdirs}" in
 583   *target-libgloss*) ;;
 584   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 585 esac
 586
 587 # If we are building a Canadian Cross, discard tools that can not be built
 588 # using a cross compiler.  FIXME: These tools should be fixed.
 589 if [ "${build}" != "${host}" ]; then
 590   noconfigdirs="$noconfigdirs tcl tk expect dejagnu"
 591 fi
 592
 593 # Make sure we don't let GNU ld be added if we didn't want it.
 594 if [ x$with_gnu_ld = xno ]; then
 595   use_gnu_ld=no
 596   noconfigdirs="$noconfigdirs ld"
 597 fi
 598
 599 # Make sure we don't let GNU as be added if we didn't want it.
 600 if [ x$with_gnu_as = xno ]; then
 601   use_gnu_as=no
 602   noconfigdirs="$noconfigdirs gas"
 603 fi
 604
 605 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
 606 # $target_configdirs.
 607 # If we have the source for $noconfigdirs entries, add them to $notsupp.
 608
 609 notsupp=""
 610 for dir in . $skipdirs $noconfigdirs ; do
 611   dirname=`echo $dir | sed -e s/target-//g`
 612   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 613     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 614     if [ -r $srcdir/$dirname/configure ] \
 615         || [ -r $srcdir/$dirname/configure.in ]; then
 616       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 617         true
 618       else
 619         notsupp="$notsupp $dir"
 620       fi
 621     fi
 622   fi
 623   if [ $dir != . ]  && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 624     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
 625     if [ -r $srcdir/$dirname/configure ] \
 626         || [ -r $srcdir/$dirname/configure.in ]; then
 627       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 628         true
 629       else
 630         notsupp="$notsupp $dir"
 631       fi
 632     fi
 633   fi
 634 done
 635
 636 # Sometimes the tools are distributed with libiberty but with no other
 637 # libraries.  In that case, we don't want to build target-libiberty.
 638 if [ -n "${target_configdirs}" ]; then
 639   others=
 640   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
 641     if [ "$i" != "libiberty" ]; then
 642       if [ -r $srcdir/$i/configure ] || [ -r $srcdir/$i/configure.in ]; then
 643         others=yes;
 644         break;
 645       fi
 646     fi
 647   done
 648   if [ -z "${others}" ]; then
 649     target_configdirs=
 650   fi
 651 fi
 652
 653 # Deconfigure all subdirectories, in case we are changing the
 654 # configuration from one where a subdirectory is supported to one where it
 655 # is not.
 656 if [ -z "${norecursion}" -a -n "${configdirs}" ]; then
 657   for i in `echo ${configdirs} | sed -e s/target-//g` ; do
 658     rm -f $i/Makefile
 659   done
 660 fi
 661 if [ -z "${norecursion}" -a -n "${target_configdirs}" ]; then
 662   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
 663     rm -f ${target_subdir}/$i/Makefile
 664   done
 665 fi
 666
 667 # Produce a warning message for the subdirs we can't configure.
 668 # This isn't especially interesting in the Cygnus tree, but in the individual
 669 # FSF releases, it's important to let people know when their machine isn't
 670 # supported by the one or two programs in a package.
 671
 672 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 673   # If $appdirs is non-empty, at least one of those directories must still
 674   # be configured, or we error out.  (E.g., if the gas release supports a
 675   # specified target in some subdirs but not the gas subdir, we shouldn't
 676   # pretend that all is well.)
 677   if [ -n "$appdirs" ]; then
 678     for dir in $appdirs ; do
 679       if [ -r $dir/Makefile.in ]; then
 680         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 681           appdirs=""
 682           break
 683         fi
 684         if echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 685           appdirs=""
 686           break
 687         fi
 688       fi
 689     done
 690     if [ -n "$appdirs" ]; then
 691       echo "*** This configuration is not supported by this package." 1>&2
 692       exit 1
 693     fi
 694   fi
 695   # Okay, some application will build, or we don't care to check.  Still
 696   # notify of subdirs not getting built.
 697   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 698   echo "    ${notsupp}" 1>&2
 699   echo "    (Any other directories should still work fine.)" 1>&2
 700 fi
 701
 702 # Set with_gnu_as and with_gnu_ld as appropriate.
 703 #
 704 # This is done by determining whether or not the appropriate directory
 705 # is available, and by checking whether or not specific configurations
 706 # have requested that this magic not happen.
 707 #
 708 # The command line options always override the explicit settings in
 709 # configure.in, and the settings in configure.in override this magic.
 710 #
 711 # If the default for a toolchain is to use GNU as and ld, and you don't
 712 # want to do that, then you should use the --without-gnu-as and
 713 # --without-gnu-ld options for the configure script.
 714
 715 if [ x${use_gnu_as} = x ] ; then
 716   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 717     with_gnu_as=yes
 718     withoptions="$withoptions --with-gnu-as"
 719   fi
 720 fi
 721
 722 if [ x${use_gnu_ld} = x ] ; then
 723   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 724     with_gnu_ld=yes
 725     withoptions="$withoptions --with-gnu-ld"
 726   fi
 727 fi
 728
 729 if [ x${shared} = xyes ]; then
 730   case "${target}" in
 731     hppa*)              target_makefile_frag=config/mt-papic ;;
 732     i[345]86-*)         target_makefile_frag=config/mt-x86pic ;;
 733     *)                  target_makefile_frag=config/mt-${target_cpu}pic ;;
 734   esac
 735 fi
 736
 737 # post-target:
 738
 739 # Make sure that the compiler is able to generate an executable.  If it
 740 # can't, we are probably in trouble.  We don't care whether we can run the
 741 # executable--we might be using a cross compiler--we only care whether it
 742 # can be created.  At this point the main configure script has set CC.
 743 echo "int main () { return 0; }" > conftest.c
 744 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
 745 if [ $? = 0 ] && [ -s conftest ]; then
 746   :
 747 else
 748   echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
 749   echo 1>&2 "*** You must set the environment variable CC to a working compiler."
 750   rm -f conftest*
 751   exit 1
 752 fi
 753 rm -f conftest*
 754
 755 # The Solaris /usr/ucb/cc compiler does not appear to work.
 756 case "${host}" in
 757   sparc-sun-solaris2*)
 758       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
 759       if [ "`/usr/bin/which $CCBASE`" = "/usr/ucb/cc" ] ; then
 760           could_use=
 761           [ -d /opt/SUNWspro/bin ] && could_use="/opt/SUNWspro/bin"
 762           if [ -d /opt/cygnus/bin ] ; then
 763               if [ "$could_use" = "" ] ; then
 764                   could_use="/opt/cygnus/bin"
 765               else
 766                   could_use="$could_use or /opt/cygnus/bin"
 767               fi
 768           fi
 769         if [ "$could_use" = "" ] ; then
 770             echo "Warning: compilation may fail because you're using"
 771             echo "/usr/ucb/cc.  You should change your PATH or CC "
 772             echo "variable and rerun configure."
 773         else
 774             echo "Warning: compilation may fail because you're using"
 775             echo "/usr/ucb/cc, when you should use the C compiler from"
 776             echo "$could_use.  You should change your"
 777             echo "PATH or CC variable and rerun configure."
 778         fi
 779       fi
 780   ;;
 781 esac
 782
 783 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
 784 # binutils tools will find libbfd.so.
 785 if [ "${shared}" = "yes" ]; then
 786   sed -e 's/^SET_LIB_PATH[      ]*=.*$/SET_LIB_PATH = $(REALLY_SET_LIB_PATH)/' \
 787       Makefile > Makefile.tem
 788   rm -f Makefile
 789   mv -f Makefile.tem Makefile
 790
 791   case "${host}" in
 792   *-*-hpux*)
 793     sed -e 's/RPATH_ENVVAR[     ]*=.*$/RPATH_ENVVAR = SHLIB_PATH/' \
 794         Makefile > Makefile.tem
 795     rm -f Makefile
 796     mv -f Makefile.tem Makefile
 797     ;;
 798   esac
 799 fi
 800
 801 # Record target_configdirs and the configure arguments in Makefile.
 802 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
 803 targargs=`echo "${arguments}" | \
 804         sed -e 's/--norecursion//' \
 805             -e 's/--cache[a-z-]*=[^     ]*//' \
 806             -e 's/--ho[a-z-]*=[^        ]*//' \
 807             -e 's/--ta[a-z-]*=[^        ]*//'`
 808
 809 # Passing a --with-cross-host argument lets the target libraries know
 810 # whether they are being built with a cross-compiler or being built
 811 # native.  However, it would be better to use other mechanisms to make the
 812 # sorts of decisions they want to make on this basis.  Please consider
 813 # this option to be deprecated.  FIXME.
 814 if [ x${is_cross_compiler} = xyes ]; then
 815   targargs="--with-cross-host=${host_alias} ${targargs}"
 816 fi
 817
 818 targargs="--host=${target_alias} ${targargs}"
 819 sed -e "s:^TARGET_CONFIGDIRS[   ]*=.*$:TARGET_CONFIGDIRS = ${target_configdirs}:" \
 820     -e "s%^CONFIG_ARGUMENTS[    ]*=.*$%CONFIG_ARGUMENTS = ${targargs}%" \
 821     -e "s%^TARGET_SUBDIR[       ]*=.*$%TARGET_SUBDIR = ${target_subdir}%" \
 822        Makefile > Makefile.tem
 823 rm -f Makefile
 824 mv -f Makefile.tem Makefile
 825
 826 #
 827 # Local Variables:
 828 # fill-column: 131
 829 # End:
 830 #