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 ${host_tools} list after byacc and bison.
  40
  41
  42 # these libraries are used by various programs built for the host environment
  43 #
  44 host_libs="mmalloc libiberty opcodes bfd readline gash db tcl tk tclX itcl"
  45
  46 if [ "${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 prms send-pr gprof gdbtest tgas etc expect dejagnu sim bash m4 autoconf ispell grep diff rcs cvs fileutils shellutils time textutils wdiff find emacs emacs19 uudecode hello tar gzip indent recode release sed utils guile perl apache inet gawk findutils sn"
  53
  54
  55 # these libraries are built for the target environment, and are built after
  56 # the host libraries and the host tools (which may be a cross compiler)
  57 #
  58 target_libs="target-libiberty target-libgloss target-newlib target-libio target-librx target-libstdc++ target-libg++"
  59
  60
  61 # these tools are built using the target libs, and are intended to run only
  62 # in the target environment
  63 #
  64 # note: any program that *uses* libraries that are in the "target_libs"
  65 # list belongs in this list.  those programs are also very likely
  66 # candidates for the "native_only" list which follows
  67 #
  68 target_tools="target-examples target-groff"
  69
  70 ################################################################################
  71
  72 ## These two lists are of directories that are to be removed from the
  73 ## ${configdirs} list for either cross-compilations or for native-
  74 ## compilations.  For example, it doesn't make that much sense to
  75 ## cross-compile Emacs, nor is it terribly useful to compile target-libiberty in
  76 ## a native environment.
  77
  78 # directories to be built in the native environment only
  79 #
  80 # This must be a single line because of the way it is searched by grep in
  81 # the code below.
  82 native_only="autoconf cvs emacs emacs19 fileutils find gawk grep gzip hello indent ispell m4 rcs recode sed shellutils tar textutils gash uudecode wdiff gprof target-groff guile perl apache inet time bash prms sn"
  83
  84 # directories to be built in a cross environment only
  85 #
  86 cross_only="target-libiberty target-libgloss target-newlib"
  87
  88 ## All tools belong in one of the four categories, and are assigned above
  89 ## We assign ${configdirs} this way to remove all embedded newlines.  This
  90 ## is important because configure will choke if they ever get through.
  91 ## ${configdirs} is directories we build using the host tools.
  92 ## ${target_configdirs} is directories we build using the target tools.
  93 #
  94 configdirs=`echo ${host_libs} ${host_tools}`
  95 target_configdirs=`echo ${target_libs} ${target_tools}`
  96
  97 ################################################################################
  98
  99 srctrigger=move-if-change
 100 srcname="gnu development package"
 101
 102 # This gets set non-empty for some net releases of packages.
 103 appdirs=""
 104
 105 # per-host:
 106
 107 # Work in distributions that contain no compiler tools, like Autoconf.
 108 if [ -d ${srcdir}/config ]; then
 109 case "${host}" in
 110   m68k-hp-hpux*)          host_makefile_frag=config/mh-hp300 ;;
 111   m68k-apollo-sysv*)      host_makefile_frag=config/mh-apollo68 ;;
 112   m68k-apollo-bsd*)       host_makefile_frag=config/mh-a68bsd ;;
 113   m88k-dg-dgux*)          host_makefile_frag=config/mh-dgux ;;
 114   m88k-harris-cxux*)      host_makefile_frag=config/mh-cxux ;;
 115   m88k-motorola-sysv*)    host_makefile_frag=config/mh-delta88;;
 116   mips*-dec-ultrix*)      host_makefile_frag=config/mh-decstation ;;
 117   mips*-nec-sysv4*)       host_makefile_frag=config/mh-necv4 ;;
 118   mips*-sgi-irix6*)       host_makefile_frag=config/mh-irix6 ;;
 119   mips*-sgi-irix5*)       host_makefile_frag=config/mh-irix5 ;;
 120   mips*-sgi-irix4*)       host_makefile_frag=config/mh-irix4 ;;
 121   mips*-sgi-irix3*)       host_makefile_frag=config/mh-sysv ;;
 122   mips*-*-sysv4*)         host_makefile_frag=config/mh-sysv4 ;;
 123   mips*-*-sysv*)          host_makefile_frag=config/mh-riscos ;;
 124   i[3456]86-*-dgux*)      host_makefile_frag=config/mh-dgux386 ;;
 125   i[3456]86-ncr-sysv4.3)  host_makefile_frag=config/mh-ncrsvr43 ;;
 126   i[3456]86-ncr-sysv4*)   host_makefile_frag=config/mh-ncr3000 ;;
 127   i[3456]86-*-sco3.2v5*)  host_makefile_frag=config/mh-sysv ;;
 128   i[3456]86-*-sco*)       host_makefile_frag=config/mh-sco ;;
 129   i[3456]86-*-isc*)       host_makefile_frag=config/mh-sysv ;;
 130   i[3456]86-*-solaris2*)  host_makefile_frag=config/mh-sysv4 ;;
 131   i[3456]86-*-aix*)       host_makefile_frag=config/mh-aix386 ;;
 132   i[3456]86-*-go32*)      host_makefile_frag=config/mh-go32 ;;
 133   *-cygwin32*)            host_makefile_frag=config/mh-cygwin32 ;;
 134   *-windows*)             host_makefile_frag=config/mh-windows ;;
 135   vax-*-ultrix2*)         host_makefile_frag=config/mh-vaxult2 ;;
 136   *-*-solaris2*)          host_makefile_frag=config/mh-solaris ;;
 137   m68k-sun-sunos*)        host_makefile_frag=config/mh-sun3 ;;
 138   *-hp-hpux[78]*)         host_makefile_frag=config/mh-hpux8 ;;
 139   *-hp-hpux*)             host_makefile_frag=config/mh-hpux ;;
 140   *-*-hiux*)              host_makefile_frag=config/mh-hpux ;;
 141   rs6000-*-lynxos*)       host_makefile_frag=config/mh-lynxrs6k ;;
 142   *-*-lynxos*)            host_makefile_frag=config/mh-lynxos ;;
 143   *-*-sysv4*)             host_makefile_frag=config/mh-sysv4 ;;
 144   *-*-sysv*)              host_makefile_frag=config/mh-sysv ;;
 145 esac
 146 fi
 147
 148 # If we aren't going to be using gcc, see if we can extract a definition
 149 # of CC from the fragment.
 150 if [ -z "${CC}" -a "${build}" = "${host}" ]; then
 151   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 152   found=
 153   for dir in $PATH; do
 154     test -z "$dir" && dir=.
 155     if test -f $dir/gcc; then
 156       found=yes
 157       break
 158     fi
 159   done
 160   IFS="$save_ifs"
 161   if [ -z "${found}" -a -n "${host_makefile_frag}" -a -f "${srcdir}/${host_makefile_frag}" ]; then
 162     xx=`sed -n -e 's/^[         ]*CC[   ]*=[    ]*\(.*\)$/\1/p' < ${srcdir}/${host_makefile_frag}`
 163     if [ -n "${xx}" ] ; then
 164       CC=$xx
 165     fi
 166   fi
 167 fi
 168
 169 # We default to --with-shared on platforms where -fpic is meaningless.
 170 # Well, we don't yet, but we will.
 171 if false && [ "${host}" = "${target}" ] && [ x${enable_shared} = x ]; then
 172   case "${target}" in
 173     alpha-dec-osf*)     enable_shared=yes ;;
 174     alpha-*-linux*)     enable_shared=yes ;;
 175     mips-sgi-irix5*)    enable_shared=yes ;;
 176     *)                  enable_shared=no ;;
 177   esac
 178 fi
 179
 180 case "${enable_shared}" in
 181   yes) shared=yes ;;
 182   no) shared=no ;;
 183   "") shared=no ;;
 184   *) shared=yes ;;
 185 esac
 186
 187 if [ x${shared} = xyes ]; then
 188   waugh=
 189   case "${host}" in
 190     hppa*)              waugh=config/mh-papic ;;
 191     i[3456]86-*)        waugh=config/mh-x86pic ;;
 192     sparc64-*)          waugh=config/mh-sparcpic ;;
 193     *)                  waugh=config/mh-${host_cpu}pic ;;
 194   esac
 195   if [ -f ${srcdir}/${waugh} ]; then
 196     if [ -n "${host_makefile_frag}" ] ; then
 197       cat ${srcdir}/${host_makefile_frag} > mh-frag
 198       cat ${srcdir}/${waugh} >> mh-frag
 199       host_makefile_frag=mh-frag
 200     else
 201       host_makefile_frag=${waugh}
 202     fi
 203   fi
 204 fi
 205
 206 # per-target:
 207
 208 case "${target}" in
 209   v810*)                target_makefile_frag=config/mt-v810 ;;
 210   i[3456]86-*-netware*) target_makefile_frag=config/mt-netware ;;
 211 # start-sanitize-r5900
 212   mips64vr5900*-*-*)    target_makefile_frag=config/mt-r5900 ;;
 213 # end-sanitize-r5900
 214   powerpc-*-netware*)   target_makefile_frag=config/mt-netware ;;
 215 esac
 216
 217 skipdirs=
 218 gasdir=gas
 219 use_gnu_ld=
 220 use_gnu_as=
 221
 222 # some tools are so dependent upon X11 that if we're not building with X,
 223 # it's not even worth trying to configure, much less build, that tool.
 224
 225 case ${with_x} in
 226   yes | "")  # the default value for this tree is that X11 is available
 227         ;;
 228   no)
 229         skipdirs="${skipdirs} tk gash"
 230         ;;
 231   *)
 232         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 233         ;;
 234 esac
 235
 236 # Some tools are only suitable for building in a "native" situation.
 237 # Those are added when we have a host==target configuration.  For cross
 238 # toolchains, we add some directories that should only be useful in a
 239 # cross-compiler.
 240
 241 is_cross_compiler=
 242
 243 if [ x"${host}" = x"${target}" ] ; then
 244         # when doing a native toolchain, don't build the targets
 245         # that are in the 'cross only' list
 246         skipdirs="${skipdirs} ${cross_only}"
 247         is_cross_compiler=no
 248         target_subdir=.
 249 else
 250         # similarly, don't build the targets in the 'native only'
 251         # list when building a cross compiler
 252         skipdirs="${skipdirs} ${native_only}"
 253         is_cross_compiler=yes
 254         target_subdir=${target_alias}
 255         if [ ! -d ${target_subdir} ] ; then
 256             if mkdir ${target_subdir} ; then true
 257             else
 258                 echo "'*** could not make ${PWD=`pwd`}/${target_subdir}" 1>&2
 259                 exit 1
 260             fi
 261         fi
 262 fi
 263
 264 copy_dirs=
 265
 266 # Handle --with-headers=XXX.  The contents of the named directory are
 267 # copied to $(tooldir)/sys-include.
 268 if [ x"${with_headers}" != x ]; then
 269   if [ x${is_cross_compiler} = xno ]; then
 270     echo 1>&2 '***' --with-headers is only supported when cross compiling
 271     exit 1
 272   fi
 273   case "${exec_prefixoption}" in
 274   "") x=${prefix} ;;
 275   *) x=${exec_prefix} ;;
 276   esac
 277   copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
 278 fi
 279
 280 # Handle --with-libs=XXX.  Multiple directories are permitted.  The
 281 # contents are copied to $(tooldir)/lib.
 282 if [ x"${with_libs}" != x ]; then
 283   if [ x${is_cross_compiler} = xno ]; then
 284     echo 1>&2 '***' --with-libs is only supported when cross compiling
 285     exit 1
 286   fi
 287   # Copy the libraries in reverse order, so that files in the first named
 288   # library override files in subsequent libraries.
 289   case "${exec_prefixoption}" in
 290   "") x=${prefix} ;;
 291   *) x=${exec_prefix} ;;
 292   esac
 293   for l in ${with_libs}; do
 294     copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 295   done
 296 fi
 297
 298 # If both --with-headers and --with-libs are specified, default to
 299 # --without-newlib.
 300 if [ x"${with_headers}" != x ] && [ x"${with_libs}" != x ]; then
 301   if [ x"${with_newlib}" = x ]; then
 302     with_newlib=no
 303   fi
 304 fi
 305
 306 # Recognize --with-newlib/--without-newlib.
 307 if [ x${with_newlib} = xno ]; then
 308   skipdirs="${skipdirs} target-newlib"
 309 elif [ x${with_newlib} = xyes ]; then
 310   skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 311 fi
 312
 313 # Default to using --with-stabs for certain targets.
 314 if [ x${with_stabs} = x ]; then
 315   case "${target}" in
 316   mips*-*-irix6*)
 317     ;;
 318   mips*-*-* | alpha*-*-osf* | i[3456]86*-*-sysv4* | i[3456]86*-*-unixware*)
 319     with_stabs=yes;
 320     withoptions="${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[3456]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 "${host}" in
 372   i[3456]86-*-vsta)
 373     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl apache inet itcl db sn"
 374     ;;
 375   i[3456]86-*-go32)
 376     noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl apache inet itcl db sn"
 377         ;;
 378   *-*-cygwin32)
 379      noconfigdirs="expect dejagnu cvs autoconf bison send-pr gprof rcs guile perl texinfo apache inet itcl db sn"
 380     ;;
 381   *-*-windows*)
 382 # This is only used to build WinGDB...
 383      configdirs="bfd gdb libiberty opcodes readline sim"
 384      target_configdirs=
 385     ;;
 386   ppc*-*-pe)
 387      noconfigdirs="patch diff make tk tcl expect dejagnu cvs autoconf texinfo bison send-pr gprof rcs guile perl apache inet itcl db sn"
 388     ;;
 389 esac
 390
 391
 392 case "${target}" in
 393   *-*-netware)
 394     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-librx target-newlib target-libiberty target-libgloss"
 395     ;;
 396   *-*-vxworks*)
 397     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 398     ;;
 399   alpha-dec-osf*)
 400     # ld works, but does not support shared libraries.  emacs doesn't
 401     # work.  newlib is not 64 bit ready.  I'm not sure about fileutils or grep.
 402     # gas doesn't generate exception information.
 403     noconfigdirs="$noconfigdirs gas ld emacs fileutils grep target-newlib target-libgloss"
 404     ;;
 405   alpha*-*-*vms*)
 406     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss"
 407     ;;
 408   alpha*-*-*)
 409     # newlib is not 64 bit ready
 410     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 411     ;;
 412 # start-sanitize-arc
 413   arc-*-*)
 414     noconfigdirs="$noconfigdirs target-libgloss"
 415     ;;
 416 # end-sanitize-arc
 417   arm-*-pe*)
 418     noconfigdirs="$noconfigdirs target-libgloss"
 419     ;;
 420   arm-*-coff*)
 421     noconfigdirs="$noconfigdirs target-libgloss"
 422     ;;
 423   arm-*-riscix*)
 424     noconfigdirs="$noconfigdirs ld target-libgloss"
 425     ;;
 426   d10v-*-*)
 427     noconfigdirs="$noconfigdirs target-librx target-libg++ target-libstdc++ target-libio target-libgloss"
 428     ;;
 429 # start-sanitize-d30v
 430   d30v-*-*)
 431     noconfigdirs="$noconfigdirs tcl tk expect gcc gdb newlib target-librx target-libg++ target-libstdc++ target-libio target-libgloss itcl db sn target-libiberty target-newlib target-examples"
 432     ;;
 433 # end-sanitize-d30v
 434   h8300*-*-* | \
 435   h8500-*-*)
 436     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx target-libgloss"
 437     ;;
 438   hppa*-*-*elf* | \
 439   hppa*-*-lites*)
 440     # Do configure ld/binutils/gas for this case.
 441     ;;
 442   hppa*-*-*)
 443     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 444     # cc is gcc, and on any system a user should be able to link cc to
 445     # whatever they want.  FIXME, emacs emacs19).
 446     case "${CC}" in
 447         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 448         *) ;;
 449     esac
 450     noconfigdirs="$noconfigdirs ld shellutils"
 451     ;;
 452   i[3456]86-*-go32)
 453     # but don't build gdb
 454     noconfigdirs="$noconfigdirs gdb target-libg++ target-libstdc++ target-libio target-librx"
 455     ;;
 456   *-*-cygwin32)
 457     target_configdirs="$target_configdirs target-winsup"
 458     noconfigdirs="$noconfigdirs expect target-libgloss itcl db sn"
 459     # always build newlib.
 460     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 461
 462     # Can't build gdb for cygwin32 if not native.
 463     case "${host}" in
 464       *-*-cygwin32) ;; # keep gdb
 465       *) noconfigdirs="$noconfigdirs gdb"
 466     esac
 467     ;;
 468   i[3456]86-*-pe)
 469     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx target-libgloss"
 470     ;;
 471   i[3456]86-*-sco3.2v5*)
 472     # The linker does not yet know about weak symbols in COFF,
 473     # and is not configured to handle mixed ELF and COFF.
 474     noconfigdirs="$noconfigdirs gprof ld target-libgloss"
 475     ;;
 476   i[3456]86-*-sco*)
 477     noconfigdirs="$noconfigdirs gprof target-libgloss"
 478     ;;
 479   i[3456]86-*-solaris2*)
 480     # The linker does static linking correctly, but the Solaris C library
 481     # has bugs such that some important functions won't work when statically
 482     # linked.  (See man pages for getpwuid, for example.)
 483     noconfigdirs="$noconfigdirs ld target-libgloss"
 484     ;;
 485   i[3456]86-*-sysv4*)
 486     # The SYSV4 C compiler doesn't handle Emacs correctly
 487     case "${CC}" in
 488         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 489         *) ;;
 490     esac
 491     # but that's okay since emacs doesn't work anyway
 492     noconfigdirs="$noconfigdirs emacs emacs19 target-libgloss"
 493     ;;
 494   mn10200-*-*)
 495     noconfigdirs="$noconfigdirs target-libgloss"
 496     ;;
 497   mn10300-*-*)
 498     noconfigdirs="$noconfigdirs target-libgloss"
 499     ;;
 500   powerpc-*-aix*)
 501     # copied from rs6000-*-* entry
 502     noconfigdirs="$noconfigdirs gprof cvs target-libgloss"
 503     # This is needed until gcc and ld are fixed to work together.
 504     use_gnu_ld=no
 505     ;;
 506   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 507     target_configdirs="$target_configdirs target-winsup"
 508     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl db sn"
 509     # always build newlib.
 510     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 511     ;;
 512     # This is temporary until we can link against shared libraries
 513   powerpcle-*-solaris*)
 514     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl db sn"
 515     ;;
 516   rs6000-*-lynxos*)
 517     # The CVS server code doesn't work on the RS/6000
 518     # Newlib makes problems for libg++ in crosses.
 519     noconfigdirs="$noconfigdirs target-newlib gprof cvs"
 520     ;;
 521   rs6000-*-aix*)
 522     noconfigdirs="$noconfigdirs gprof"
 523     # This is needed until gcc and ld are fixed to work together.
 524     use_gnu_ld=no
 525     ;;
 526   rs6000-*-*)
 527     noconfigdirs="$noconfigdirs gprof"
 528     ;;
 529   m68k-apollo-*)
 530     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
 531     ;;
 532   mips*-*-irix5*)
 533     # The GNU linker does not support shared libraries.
 534     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 535     noconfigdirs="$noconfigdirs ld gprof emacs target-libgloss"
 536     ;;
 537   mips*-*-irix6*)
 538     # The GNU linker does not support shared libraries.
 539     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 540     noconfigdirs="$noconfigdirs ld gas gprof emacs target-libgloss"
 541     ;;
 542   mips*-dec-bsd*)
 543     noconfigdirs="$noconfigdirs gprof target-libgloss"
 544     ;;
 545   mips*-*-bsd*)
 546     noconfigdirs="$noconfigdirs gprof target-libgloss"
 547     ;;
 548   mips*-*-*)
 549     noconfigdirs="$noconfigdirs gprof"
 550     ;;
 551   romp-*-*)
 552     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss"
 553     ;;
 554   sh-*-*)
 555     case "${host}" in
 556       i[3456]86-*-vsta) ;; # don't add gprof back in
 557       i[3456]86-*-go32) ;; # don't add gprof back in
 558       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 559     esac
 560     noconfigdirs="$noconfigdirs target-libgloss"
 561     ;;
 562   sparc-*-sunos4*)
 563     if [ x${is_cross_compiler} != xno ] ; then
 564            noconfigdirs="$noconfigdirs gdb gdbtest target-newlib target-libgloss"
 565     else
 566            use_gnu_ld=no
 567     fi
 568     ;;
 569 # start-sanitize-tic80
 570   tic80-*-*)
 571     noconfigdirs="$noconfigdirs gdb target-libio target-libg++ target-libstdc++ target-libgloss"
 572     ;;
 573 # end-sanitize-tic80
 574   v810-*-*)
 575     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libio target-libg++ target-libstdc++ opcodes target-libgloss"
 576     ;;
 577 # start-sanitize-v850
 578   v850-*-*)
 579     noconfigdirs="$noconfigdirs target-libgloss"
 580     ;;
 581 # end-sanitize-v850
 582   vax-*-vms)
 583     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss"
 584     ;;
 585   vax-*-*)
 586     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 587     ;;
 588   *-*-lynxos*)
 589     # Newlib makes problems for libg++ in crosses.
 590     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 591     ;;
 592   *-*-macos* | \
 593   *-*-mpw*)
 594     # Macs want a resource compiler.
 595     configdirs="$configdirs grez"
 596     ;;
 597 esac
 598
 599 # targets that need a second pass
 600 case "${target}" in
 601   *-gm-magic*)
 602     noconfigdirs="$noconfigdirs target-libgloss"
 603     ;;
 604 esac
 605
 606 # If we aren't building newlib, then don't build libgloss, since libgloss
 607 # depends upon some newlib header files.
 608 case "${noconfigdirs}" in
 609   *target-libgloss*) ;;
 610   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 611 esac
 612
 613 # If we are building a Canadian Cross, discard tools that can not be built
 614 # using a cross compiler.  FIXME: These tools should be fixed.
 615 if [ "${build}" != "${host}" ]; then
 616   noconfigdirs="$noconfigdirs expect dejagnu itcl db sn"
 617 fi
 618
 619 # Make sure we don't let GNU ld be added if we didn't want it.
 620 if [ x$with_gnu_ld = xno ]; then
 621   use_gnu_ld=no
 622   noconfigdirs="$noconfigdirs ld"
 623 fi
 624
 625 # Make sure we don't let GNU as be added if we didn't want it.
 626 if [ x$with_gnu_as = xno ]; then
 627   use_gnu_as=no
 628   noconfigdirs="$noconfigdirs gas"
 629 fi
 630
 631 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
 632 # $target_configdirs.
 633 # If we have the source for $noconfigdirs entries, add them to $notsupp.
 634
 635 notsupp=""
 636 for dir in . $skipdirs $noconfigdirs ; do
 637   dirname=`echo $dir | sed -e s/target-//g`
 638   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 639     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 640     if [ -r $srcdir/$dirname/configure ] \
 641         || [ -r $srcdir/$dirname/configure.in ]; then
 642       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 643         true
 644       else
 645         notsupp="$notsupp $dir"
 646       fi
 647     fi
 648   fi
 649   if [ $dir != . ]  && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 650     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
 651     if [ -r $srcdir/$dirname/configure ] \
 652         || [ -r $srcdir/$dirname/configure.in ]; then
 653       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 654         true
 655       else
 656         notsupp="$notsupp $dir"
 657       fi
 658     fi
 659   fi
 660 done
 661
 662 # Sometimes the tools are distributed with libiberty but with no other
 663 # libraries.  In that case, we don't want to build target-libiberty.
 664 if [ -n "${target_configdirs}" ]; then
 665   others=
 666   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
 667     if [ "$i" != "libiberty" ]; then
 668       if [ -r $srcdir/$i/configure ] || [ -r $srcdir/$i/configure.in ]; then
 669         others=yes;
 670         break;
 671       fi
 672     fi
 673   done
 674   if [ -z "${others}" ]; then
 675     target_configdirs=
 676   fi
 677 fi
 678
 679 # Deconfigure all subdirectories, in case we are changing the
 680 # configuration from one where a subdirectory is supported to one where it
 681 # is not.
 682 if [ -z "${norecursion}" -a -n "${configdirs}" ]; then
 683   for i in `echo ${configdirs} | sed -e s/target-//g` ; do
 684     rm -f $i/Makefile
 685   done
 686 fi
 687 if [ -z "${norecursion}" -a -n "${target_configdirs}" ]; then
 688   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
 689     rm -f ${target_subdir}/$i/Makefile
 690   done
 691 fi
 692
 693 # Produce a warning message for the subdirs we can't configure.
 694 # This isn't especially interesting in the Cygnus tree, but in the individual
 695 # FSF releases, it's important to let people know when their machine isn't
 696 # supported by the one or two programs in a package.
 697
 698 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 699   # If $appdirs is non-empty, at least one of those directories must still
 700   # be configured, or we error out.  (E.g., if the gas release supports a
 701   # specified target in some subdirs but not the gas subdir, we shouldn't
 702   # pretend that all is well.)
 703   if [ -n "$appdirs" ]; then
 704     for dir in $appdirs ; do
 705       if [ -r $dir/Makefile.in ]; then
 706         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 707           appdirs=""
 708           break
 709         fi
 710         if echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 711           appdirs=""
 712           break
 713         fi
 714       fi
 715     done
 716     if [ -n "$appdirs" ]; then
 717       echo "*** This configuration is not supported by this package." 1>&2
 718       exit 1
 719     fi
 720   fi
 721   # Okay, some application will build, or we don't care to check.  Still
 722   # notify of subdirs not getting built.
 723   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 724   echo "    ${notsupp}" 1>&2
 725   echo "    (Any other directories should still work fine.)" 1>&2
 726 fi
 727
 728 # Set with_gnu_as and with_gnu_ld as appropriate.
 729 #
 730 # This is done by determining whether or not the appropriate directory
 731 # is available, and by checking whether or not specific configurations
 732 # have requested that this magic not happen.
 733 #
 734 # The command line options always override the explicit settings in
 735 # configure.in, and the settings in configure.in override this magic.
 736 #
 737 # If the default for a toolchain is to use GNU as and ld, and you don't
 738 # want to do that, then you should use the --without-gnu-as and
 739 # --without-gnu-ld options for the configure script.
 740
 741 if [ x${use_gnu_as} = x ] ; then
 742   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 743     with_gnu_as=yes
 744     withoptions="$withoptions --with-gnu-as"
 745   fi
 746 fi
 747
 748 if [ x${use_gnu_ld} = x ] ; then
 749   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 750     with_gnu_ld=yes
 751     withoptions="$withoptions --with-gnu-ld"
 752   fi
 753 fi
 754
 755 # If using newlib, add --with-newlib to the withoptions so that gcc/configure
 756 # can detect this case.
 757
 758 if [ x${with_newlib} != xno ] && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 && [ -d ${srcdir}/newlib ] ; then
 759   with_newlib=yes
 760   withoptions="$withoptions --with-newlib"
 761 fi
 762
 763 if [ x${shared} = xyes ]; then
 764   case "${target}" in
 765     hppa*)              target_makefile_frag=config/mt-papic ;;
 766     i[3456]86-*)                target_makefile_frag=config/mt-x86pic ;;
 767     *)                  target_makefile_frag=config/mt-${target_cpu}pic ;;
 768   esac
 769 fi
 770
 771 # post-target:
 772
 773 # Make sure that the compiler is able to generate an executable.  If it
 774 # can't, we are probably in trouble.  We don't care whether we can run the
 775 # executable--we might be using a cross compiler--we only care whether it
 776 # can be created.  At this point the main configure script has set CC.
 777 echo "int main () { return 0; }" > conftest.c
 778 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
 779 if [ $? = 0 ] && [ -s conftest ]; then
 780   :
 781 else
 782   echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
 783   echo 1>&2 "*** You must set the environment variable CC to a working compiler."
 784   rm -f conftest*
 785   exit 1
 786 fi
 787 rm -f conftest*
 788
 789 # The Solaris /usr/ucb/cc compiler does not appear to work.
 790 case "${host}" in
 791   sparc-sun-solaris2*)
 792       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
 793       if [ "`/usr/bin/which $CCBASE`" = "/usr/ucb/cc" ] ; then
 794           could_use=
 795           [ -d /opt/SUNWspro/bin ] && could_use="/opt/SUNWspro/bin"
 796           if [ -d /opt/cygnus/bin ] ; then
 797               if [ "$could_use" = "" ] ; then
 798                   could_use="/opt/cygnus/bin"
 799               else
 800                   could_use="$could_use or /opt/cygnus/bin"
 801               fi
 802           fi
 803         if [ "$could_use" = "" ] ; then
 804             echo "Warning: compilation may fail because you're using"
 805             echo "/usr/ucb/cc.  You should change your PATH or CC "
 806             echo "variable and rerun configure."
 807         else
 808             echo "Warning: compilation may fail because you're using"
 809             echo "/usr/ucb/cc, when you should use the C compiler from"
 810             echo "$could_use.  You should change your"
 811             echo "PATH or CC variable and rerun configure."
 812         fi
 813       fi
 814   ;;
 815 esac
 816
 817 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
 818 # binutils tools will find libbfd.so.
 819 if [ "${shared}" = "yes" ]; then
 820   sed -e 's/^SET_LIB_PATH[      ]*=.*$/SET_LIB_PATH = $(REALLY_SET_LIB_PATH)/' \
 821       Makefile > Makefile.tem
 822   rm -f Makefile
 823   mv -f Makefile.tem Makefile
 824
 825   case "${host}" in
 826   *-*-hpux*)
 827     sed -e 's/RPATH_ENVVAR[     ]*=.*$/RPATH_ENVVAR = SHLIB_PATH/' \
 828         Makefile > Makefile.tem
 829     rm -f Makefile
 830     mv -f Makefile.tem Makefile
 831     ;;
 832   esac
 833 fi
 834
 835 # Record target_configdirs and the configure arguments in Makefile.
 836 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
 837 targargs=`echo "${arguments}" | \
 838         sed -e 's/--norecursion//' \
 839             -e 's/--cache[a-z-]*=[^     ]*//' \
 840             -e 's/--ho[a-z-]*=[^        ]*//' \
 841             -e 's/--ta[a-z-]*=[^        ]*//'`
 842
 843 # Passing a --with-cross-host argument lets the target libraries know
 844 # whether they are being built with a cross-compiler or being built
 845 # native.  However, it would be better to use other mechanisms to make the
 846 # sorts of decisions they want to make on this basis.  Please consider
 847 # this option to be deprecated.  FIXME.
 848 if [ x${is_cross_compiler} = xyes ]; then
 849   targargs="--with-cross-host=${host_alias} ${targargs}"
 850 fi
 851
 852 targargs="--host=${target_alias} ${targargs}"
 853 sed -e "s:^TARGET_CONFIGDIRS[   ]*=.*$:TARGET_CONFIGDIRS = ${target_configdirs}:" \
 854     -e "s%^CONFIG_ARGUMENTS[    ]*=.*$%CONFIG_ARGUMENTS = ${targargs}%" \
 855     -e "s%^TARGET_SUBDIR[       ]*=.*$%TARGET_SUBDIR = ${target_subdir}%" \
 856        Makefile > Makefile.tem
 857 rm -f Makefile
 858 mv -f Makefile.tem Makefile
 859
 860 #
 861 # Local Variables:
 862 # fill-column: 131
 863 # End:
 864 #