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, 96, 1997 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 ${host_tools} list after byacc and bison.
  40
  41
  42 # these libraries are used by various programs built for the host environment
  43 #
  44 host_libs="mmalloc libiberty opcodes bfd readline gash db tcl tk tclX itcl tix"
  45
  46 if [ "${enable_gdbgui}" = "yes" ] ; then
  47         host_libs="${host_libs} libgui"
  48 fi
  49
  50 # these tools are built for the host environment
  51 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
  52 # know that we are building the simulator.
  53 host_tools="texinfo byacc flex bison binutils ld gas gcc sim gdb make patch prms send-pr gprof gdbtest tgas etc expect dejagnu bash m4 autoconf automake 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"
  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 target-gperf"
  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 automake 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 gnuserv target-gperf"
  83
  84 # directories to be built in a cross environment only
  85 #
  86 cross_only="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   i[3456]86-*-msdosdjgpp*) host_makefile_frag=config/mh-go32 ;;
 134   *-cygwin32*)            host_makefile_frag=config/mh-cygwin32 ;;
 135   *-windows*)             host_makefile_frag=config/mh-windows ;;
 136   vax-*-ultrix2*)         host_makefile_frag=config/mh-vaxult2 ;;
 137   *-*-solaris2*)          host_makefile_frag=config/mh-solaris ;;
 138   m68k-sun-sunos*)        host_makefile_frag=config/mh-sun3 ;;
 139   *-hp-hpux[78]*)         host_makefile_frag=config/mh-hpux8 ;;
 140   *-hp-hpux*)             host_makefile_frag=config/mh-hpux ;;
 141   *-*-hiux*)              host_makefile_frag=config/mh-hpux ;;
 142   rs6000-*-lynxos*)       host_makefile_frag=config/mh-lynxrs6k ;;
 143   *-*-lynxos*)            host_makefile_frag=config/mh-lynxos ;;
 144   *-*-sysv4*)             host_makefile_frag=config/mh-sysv4 ;;
 145   *-*-sysv*)              host_makefile_frag=config/mh-sysv ;;
 146 esac
 147 fi
 148
 149 # If we aren't going to be using gcc, see if we can extract a definition
 150 # of CC from the fragment.
 151 if [ -z "${CC}" -a "${build}" = "${host}" ]; then
 152   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 153   found=
 154   for dir in $PATH; do
 155     test -z "$dir" && dir=.
 156     if test -f $dir/gcc; then
 157       found=yes
 158       break
 159     fi
 160   done
 161   IFS="$save_ifs"
 162   if [ -z "${found}" -a -n "${host_makefile_frag}" -a -f "${srcdir}/${host_makefile_frag}" ]; then
 163     xx=`sed -n -e 's/^[         ]*CC[   ]*=[    ]*\(.*\)$/\1/p' < ${srcdir}/${host_makefile_frag}`
 164     if [ -n "${xx}" ] ; then
 165       CC=$xx
 166     fi
 167   fi
 168 fi
 169
 170 # We default to --with-shared on platforms where -fpic is meaningless.
 171 # Well, we don't yet, but we will.
 172 if false && [ "${host}" = "${target}" ] && [ x${enable_shared} = x ]; then
 173   case "${target}" in
 174     alpha-dec-osf*)     enable_shared=yes ;;
 175     alpha-*-linux*)     enable_shared=yes ;;
 176     mips-sgi-irix5*)    enable_shared=yes ;;
 177     *)                  enable_shared=no ;;
 178   esac
 179 fi
 180
 181 case "${enable_shared}" in
 182   yes) shared=yes ;;
 183   no) shared=no ;;
 184   "") shared=no ;;
 185   *) shared=yes ;;
 186 esac
 187
 188 if [ x${shared} = xyes ]; then
 189   waugh=
 190   case "${host}" in
 191     hppa*)              waugh=config/mh-papic ;;
 192     i[3456]86-*)        waugh=config/mh-x86pic ;;
 193     sparc64-*)          waugh=config/mh-sparcpic ;;
 194     powerpc*-*)         waugh=config/mh-ppcpic ;;
 195     *)                  waugh=config/mh-${host_cpu}pic ;;
 196   esac
 197   if [ -f ${srcdir}/${waugh} ]; then
 198     if [ -n "${host_makefile_frag}" ] ; then
 199       cat ${srcdir}/${host_makefile_frag} > mh-frag
 200       cat ${srcdir}/${waugh} >> mh-frag
 201       host_makefile_frag=mh-frag
 202     else
 203       host_makefile_frag=${waugh}
 204     fi
 205   fi
 206 fi
 207
 208 # per-target:
 209
 210 case "${target}" in
 211   v810*)                target_makefile_frag=config/mt-v810 ;;
 212   i[3456]86-*-netware*) target_makefile_frag=config/mt-netware ;;
 213   powerpc-*-netware*)   target_makefile_frag=config/mt-netware ;;
 214 esac
 215
 216 skipdirs=
 217 gasdir=gas
 218 use_gnu_ld=
 219 use_gnu_as=
 220
 221 # some tools are so dependent upon X11 that if we're not building with X,
 222 # it's not even worth trying to configure, much less build, that tool.
 223
 224 case ${with_x} in
 225   yes | "")  # the default value for this tree is that X11 is available
 226         ;;
 227   no)
 228         skipdirs="${skipdirs} tk gash"
 229         ;;
 230   *)
 231         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 232         ;;
 233 esac
 234
 235 # Some tools are only suitable for building in a "native" situation.
 236 # Those are added when we have a host==target configuration.  For cross
 237 # toolchains, we add some directories that should only be useful in a
 238 # cross-compiler.
 239
 240 is_cross_compiler=
 241
 242 if [ x"${host}" = x"${target}" ] ; then
 243         # when doing a native toolchain, don't build the targets
 244         # that are in the 'cross only' list
 245         skipdirs="${skipdirs} ${cross_only}"
 246         is_cross_compiler=no
 247         target_subdir=.
 248         case "${host}" in
 249           # We need multilib support for irix6, to get libiberty built
 250           #  properly for o32 and n32.
 251           mips-sgi-irix6*) target_subdir=${host} ;;
 252         esac
 253 else
 254         # similarly, don't build the targets in the 'native only'
 255         # list when building a cross compiler
 256         skipdirs="${skipdirs} ${native_only}"
 257         is_cross_compiler=yes
 258         target_subdir=${target_alias}
 259 fi
 260
 261 if [ ! -d ${target_subdir} ] ; then
 262   if mkdir ${target_subdir} ; then true
 263   else
 264     echo "'*** could not make ${PWD=`pwd`}/${target_subdir}" 1>&2
 265     exit 1
 266   fi
 267 fi
 268
 269 copy_dirs=
 270
 271 # Handle --with-headers=XXX.  The contents of the named directory are
 272 # copied to $(tooldir)/sys-include.
 273 if [ x"${with_headers}" != x ]; then
 274   if [ x${is_cross_compiler} = xno ]; then
 275     echo 1>&2 '***' --with-headers is only supported when cross compiling
 276     exit 1
 277   fi
 278   case "${exec_prefixoption}" in
 279   "") x=${prefix} ;;
 280   *) x=${exec_prefix} ;;
 281   esac
 282   copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
 283 fi
 284
 285 # Handle --with-libs=XXX.  Multiple directories are permitted.  The
 286 # contents are copied to $(tooldir)/lib.
 287 if [ x"${with_libs}" != x ]; then
 288   if [ x${is_cross_compiler} = xno ]; then
 289     echo 1>&2 '***' --with-libs is only supported when cross compiling
 290     exit 1
 291   fi
 292   # Copy the libraries in reverse order, so that files in the first named
 293   # library override files in subsequent libraries.
 294   case "${exec_prefixoption}" in
 295   "") x=${prefix} ;;
 296   *) x=${exec_prefix} ;;
 297   esac
 298   for l in ${with_libs}; do
 299     copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 300   done
 301 fi
 302
 303 # If both --with-headers and --with-libs are specified, default to
 304 # --without-newlib.
 305 if [ x"${with_headers}" != x ] && [ x"${with_libs}" != x ]; then
 306   if [ x"${with_newlib}" = x ]; then
 307     with_newlib=no
 308   fi
 309 fi
 310
 311 # Recognize --with-newlib/--without-newlib.
 312 if [ x${with_newlib} = xno ]; then
 313   skipdirs="${skipdirs} target-newlib"
 314 elif [ x${with_newlib} = xyes ]; then
 315   skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 316 fi
 317
 318 # Default to using --with-stabs for certain targets.
 319 if [ x${with_stabs} = x ]; then
 320   case "${target}" in
 321   mips*-*-irix6*)
 322     ;;
 323   mips*-*-* | alpha*-*-osf* | i[3456]86*-*-sysv4* | i[3456]86*-*-unixware*)
 324     with_stabs=yes;
 325     withoptions="${withoptions} --with-stabs"
 326     ;;
 327   esac
 328 fi
 329
 330 # Handle ${copy_dirs}
 331 set fnord ${copy_dirs}
 332 shift
 333 while [ $# != 0 ]; do
 334   if [ -f $2/COPIED ] && [ x"`cat $2/COPIED`" = x"$1" ]; then
 335     :
 336   else
 337     echo Copying $1 to $2
 338
 339     # Use the install script to create the directory and all required
 340     # parent directories.
 341     if [ -d $2 ]; then
 342       :
 343     else
 344       echo >config.temp
 345       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
 346     fi
 347
 348     # Copy the directory, assuming we have tar.
 349     # FIXME: Should we use B in the second tar?  Not all systems support it.
 350     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 351
 352     # It is the responsibility of the user to correctly adjust all
 353     # symlinks.  If somebody can figure out how to handle them correctly
 354     # here, feel free to add the code.
 355
 356     echo $1 > $2/COPIED
 357   fi
 358   shift; shift
 359 done
 360
 361 # Configure extra directories which are host specific
 362
 363 case "${host}" in
 364         i[3456]86-*-go32*)
 365           configdirs="$configdirs dosrel" ;;
 366         *-cygwin32*)
 367           configdirs="$configdirs dosrel" ;;
 368 esac
 369
 370 # Remove more programs from consideration, based on the host or
 371 # target this usually means that a port of the program doesn't
 372 # exist yet.
 373
 374 noconfigdirs=""
 375
 376 case "${host}" in
 377   i[3456]86-*-vsta)
 378     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl apache inet itcl tix db sn gnuserv"
 379     ;;
 380   i[3456]86-*-go32* | i[3456]86-*-msdosdjgpp*)
 381     noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl apache inet itcl tix db sn gnuserv"
 382         ;;
 383   *-*-cygwin32)
 384      noconfigdirs="expect dejagnu cvs autoconf automake bison send-pr gprof rcs guile perl texinfo apache inet"
 385     ;;
 386   *-*-windows*)
 387 # This is only used to build WinGDB...
 388 # note that powerpc-eabi depends on sim configured before gdb.
 389      configdirs="bfd libiberty opcodes readline sim gdb"
 390      target_configdirs=
 391     ;;
 392   ppc*-*-pe)
 393      noconfigdirs="patch diff make tk tcl expect dejagnu cvs autoconf automake texinfo bison send-pr gprof rcs guile perl apache inet itcl tix db sn gnuserv"
 394     ;;
 395 esac
 396
 397
 398 case "${target}" in
 399   *-*-netware)
 400     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-librx target-newlib target-libiberty target-libgloss"
 401     ;;
 402   *-*-vxworks*)
 403     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 404     ;;
 405   alpha-dec-osf*)
 406     # ld works, but does not support shared libraries.  emacs doesn't
 407     # work.  newlib is not 64 bit ready.  I'm not sure about fileutils.
 408     # gas doesn't generate exception information.
 409     noconfigdirs="$noconfigdirs gas ld emacs fileutils target-newlib target-libgloss"
 410     ;;
 411   alpha*-*-*vms*)
 412     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss"
 413     ;;
 414   alpha*-*-*)
 415     # newlib is not 64 bit ready
 416     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 417     ;;
 418   arc-*-*)
 419     noconfigdirs="$noconfigdirs target-libgloss"
 420     ;;
 421   arm-*-pe*)
 422     noconfigdirs="$noconfigdirs target-libgloss"
 423     ;;
 424   arm-*-coff*)
 425     noconfigdirs="$noconfigdirs target-libgloss"
 426     ;;
 427   arm-*-riscix*)
 428     noconfigdirs="$noconfigdirs ld target-libgloss"
 429     ;;
 430   d10v-*-*)
 431     noconfigdirs="$noconfigdirs target-librx target-libg++ target-libstdc++ target-libio target-libgloss"
 432     ;;
 433   h8300*-*-* | \
 434   h8500-*-*)
 435     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx target-libgloss"
 436     ;;
 437   hppa*-*-*elf* | \
 438   hppa*-*-lites* | \
 439   hppa*-*-rtems* )
 440     # Do configure ld/binutils/gas for this case.
 441     ;;
 442   hppa*-*-*)
 443     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 444     # cc is gcc, and on any system a user should be able to link cc to
 445     # whatever they want.  FIXME, emacs emacs19).
 446     case "${CC}" in
 447         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 448         *) ;;
 449     esac
 450     noconfigdirs="$noconfigdirs ld shellutils"
 451     ;;
 452   i[3456]86-*-go32* | i[3456]-*-msdosdjgpp*)
 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"
 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 tcl tk expect etc.
 465       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix db sn gnuserv"
 466          ;;
 467     esac
 468     ;;
 469   i[3456]86-*-pe)
 470     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx target-libgloss"
 471     ;;
 472   i[3456]86-*-sco3.2v5*)
 473     # The linker does not yet know about weak symbols in COFF,
 474     # and is not configured to handle mixed ELF and COFF.
 475     noconfigdirs="$noconfigdirs gprof ld target-libgloss"
 476     ;;
 477   i[3456]86-*-sco*)
 478     noconfigdirs="$noconfigdirs gprof target-libgloss"
 479     ;;
 480   i[3456]86-*-solaris2*)
 481     # The linker does static linking correctly, but the Solaris C library
 482     # has bugs such that some important functions won't work when statically
 483     # linked.  (See man pages for getpwuid, for example.)
 484     noconfigdirs="$noconfigdirs ld target-libgloss"
 485     ;;
 486   i[3456]86-*-sysv4*)
 487     # The SYSV4 C compiler doesn't handle Emacs correctly
 488     case "${CC}" in
 489         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 490         *) ;;
 491     esac
 492     # but that's okay since emacs doesn't work anyway
 493     noconfigdirs="$noconfigdirs emacs emacs19 target-libgloss"
 494     ;;
 495   mn10200-*-*)
 496     noconfigdirs="$noconfigdirs target-libgloss"
 497     ;;
 498   mn10300-*-*)
 499     noconfigdirs="$noconfigdirs target-libgloss"
 500     ;;
 501   powerpc-*-aix*)
 502     # copied from rs6000-*-* entry
 503     noconfigdirs="$noconfigdirs gprof cvs target-libgloss"
 504     # This is needed until gcc and ld are fixed to work together.
 505     use_gnu_ld=no
 506     ;;
 507   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 508     target_configdirs="$target_configdirs target-winsup"
 509     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl tix db sn gnuserv"
 510     # always build newlib.
 511     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 512     ;;
 513     # This is temporary until we can link against shared libraries
 514   powerpcle-*-solaris*)
 515     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl tix db sn gnuserv"
 516     ;;
 517   rs6000-*-lynxos*)
 518     # The CVS server code doesn't work on the RS/6000
 519     # Newlib makes problems for libg++ in crosses.
 520     noconfigdirs="$noconfigdirs target-newlib gprof cvs"
 521     ;;
 522   rs6000-*-aix*)
 523     noconfigdirs="$noconfigdirs gprof"
 524     # This is needed until gcc and ld are fixed to work together.
 525     use_gnu_ld=no
 526     ;;
 527   rs6000-*-*)
 528     noconfigdirs="$noconfigdirs gprof"
 529     ;;
 530   m68k-apollo-*)
 531     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
 532     ;;
 533   mips*-*-irix5*)
 534     # The GNU linker does not support shared libraries.
 535     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 536     noconfigdirs="$noconfigdirs ld gprof emacs target-libgloss"
 537     ;;
 538   mips*-*-irix6*)
 539     # The GNU assembler and linker do not support IRIX 6.
 540     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 541     noconfigdirs="$noconfigdirs ld gas gprof emacs target-libgloss"
 542     ;;
 543   mips*-dec-bsd*)
 544     noconfigdirs="$noconfigdirs gprof target-libgloss"
 545     ;;
 546   mips*-*-bsd*)
 547     noconfigdirs="$noconfigdirs gprof target-libgloss"
 548     ;;
 549   mips*-*-*)
 550     noconfigdirs="$noconfigdirs gprof"
 551     ;;
 552   romp-*-*)
 553     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss"
 554     ;;
 555   sh-*-*)
 556     case "${host}" in
 557       i[3456]86-*-vsta) ;; # don't add gprof back in
 558       i[3456]86-*-go32*) ;; # don't add gprof back in
 559       i[3456]86-*-msdosdjgpp*) ;; # don't add gprof back in
 560       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 561     esac
 562     noconfigdirs="$noconfigdirs target-libgloss"
 563     ;;
 564   sparc-*-sunos4*)
 565     if [ x${is_cross_compiler} != xno ] ; then
 566            noconfigdirs="$noconfigdirs gdb gdbtest target-newlib target-libgloss"
 567     else
 568            use_gnu_ld=no
 569     fi
 570     ;;
 571   v810-*-*)
 572     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libio target-libg++ target-libstdc++ opcodes target-libgloss"
 573     ;;
 574   vax-*-vms)
 575     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss"
 576     ;;
 577   vax-*-*)
 578     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 579     ;;
 580   *-*-lynxos*)
 581     # Newlib makes problems for libg++ in crosses.
 582     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 583     ;;
 584   *-*-macos* | \
 585   *-*-mpw*)
 586     # Macs want a resource compiler.
 587     configdirs="$configdirs grez"
 588     ;;
 589 esac
 590
 591 # targets that need a second pass
 592 case "${target}" in
 593   *-gm-magic*)
 594     noconfigdirs="$noconfigdirs target-libgloss"
 595     ;;
 596 esac
 597
 598 # If we aren't building newlib, then don't build libgloss, since libgloss
 599 # depends upon some newlib header files.
 600 case "${noconfigdirs}" in
 601   *target-libgloss*) ;;
 602   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 603 esac
 604
 605 # If we are building a Canadian Cross, discard tools that can not be built
 606 # using a cross compiler.  FIXME: These tools should be fixed.
 607 if [ "${build}" != "${host}" ]; then
 608   noconfigdirs="$noconfigdirs expect dejagnu"
 609 fi
 610
 611 # Make sure we don't let GNU ld be added if we didn't want it.
 612 if [ x$with_gnu_ld = xno ]; then
 613   use_gnu_ld=no
 614   noconfigdirs="$noconfigdirs ld"
 615 fi
 616
 617 # Make sure we don't let GNU as be added if we didn't want it.
 618 if [ x$with_gnu_as = xno ]; then
 619   use_gnu_as=no
 620   noconfigdirs="$noconfigdirs gas"
 621 fi
 622
 623 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
 624 # $target_configdirs.
 625 # If we have the source for $noconfigdirs entries, add them to $notsupp.
 626
 627 notsupp=""
 628 for dir in . $skipdirs $noconfigdirs ; do
 629   dirname=`echo $dir | sed -e s/target-//g`
 630   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 631     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 632     if [ -r $srcdir/$dirname/configure ] \
 633         || [ -r $srcdir/$dirname/configure.in ]; then
 634       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 635         true
 636       else
 637         notsupp="$notsupp $dir"
 638       fi
 639     fi
 640   fi
 641   if [ $dir != . ]  && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 642     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
 643     if [ -r $srcdir/$dirname/configure ] \
 644         || [ -r $srcdir/$dirname/configure.in ]; then
 645       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 646         true
 647       else
 648         notsupp="$notsupp $dir"
 649       fi
 650     fi
 651   fi
 652 done
 653
 654 # Sometimes the tools are distributed with libiberty but with no other
 655 # libraries.  In that case, we don't want to build target-libiberty.
 656 if [ -n "${target_configdirs}" ]; then
 657   others=
 658   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
 659     if [ "$i" != "libiberty" ]; then
 660       if [ -r $srcdir/$i/configure ] || [ -r $srcdir/$i/configure.in ]; then
 661         others=yes;
 662         break;
 663       fi
 664     fi
 665   done
 666   if [ -z "${others}" ]; then
 667     target_configdirs=
 668   fi
 669 fi
 670
 671 # Deconfigure all subdirectories, in case we are changing the
 672 # configuration from one where a subdirectory is supported to one where it
 673 # is not.
 674 if [ -z "${norecursion}" -a -n "${configdirs}" ]; then
 675   for i in `echo ${configdirs} | sed -e s/target-//g` ; do
 676     rm -f $i/Makefile
 677   done
 678 fi
 679 if [ -z "${norecursion}" -a -n "${target_configdirs}" ]; then
 680   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
 681     rm -f ${target_subdir}/$i/Makefile
 682   done
 683 fi
 684
 685 # Produce a warning message for the subdirs we can't configure.
 686 # This isn't especially interesting in the Cygnus tree, but in the individual
 687 # FSF releases, it's important to let people know when their machine isn't
 688 # supported by the one or two programs in a package.
 689
 690 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 691   # If $appdirs is non-empty, at least one of those directories must still
 692   # be configured, or we error out.  (E.g., if the gas release supports a
 693   # specified target in some subdirs but not the gas subdir, we shouldn't
 694   # pretend that all is well.)
 695   if [ -n "$appdirs" ]; then
 696     for dir in $appdirs ; do
 697       if [ -r $dir/Makefile.in ]; then
 698         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 699           appdirs=""
 700           break
 701         fi
 702         if echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 703           appdirs=""
 704           break
 705         fi
 706       fi
 707     done
 708     if [ -n "$appdirs" ]; then
 709       echo "*** This configuration is not supported by this package." 1>&2
 710       exit 1
 711     fi
 712   fi
 713   # Okay, some application will build, or we don't care to check.  Still
 714   # notify of subdirs not getting built.
 715   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 716   echo "    ${notsupp}" 1>&2
 717   echo "    (Any other directories should still work fine.)" 1>&2
 718 fi
 719
 720 # Set with_gnu_as and with_gnu_ld as appropriate.
 721 #
 722 # This is done by determining whether or not the appropriate directory
 723 # is available, and by checking whether or not specific configurations
 724 # have requested that this magic not happen.
 725 #
 726 # The command line options always override the explicit settings in
 727 # configure.in, and the settings in configure.in override this magic.
 728 #
 729 # If the default for a toolchain is to use GNU as and ld, and you don't
 730 # want to do that, then you should use the --without-gnu-as and
 731 # --without-gnu-ld options for the configure script.
 732
 733 if [ x${use_gnu_as} = x ] ; then
 734   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 735     with_gnu_as=yes
 736     withoptions="$withoptions --with-gnu-as"
 737   fi
 738 fi
 739
 740 if [ x${use_gnu_ld} = x ] ; then
 741   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 742     with_gnu_ld=yes
 743     withoptions="$withoptions --with-gnu-ld"
 744   fi
 745 fi
 746
 747 # If using newlib, add --with-newlib to the withoptions so that gcc/configure
 748 # can detect this case.
 749
 750 if [ x${with_newlib} != xno ] && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 && [ -d ${srcdir}/newlib ] ; then
 751   with_newlib=yes
 752   withoptions="$withoptions --with-newlib"
 753 fi
 754
 755 if [ x${shared} = xyes ]; then
 756   case "${target}" in
 757     hppa*)              target_makefile_frag=config/mt-papic ;;
 758     i[3456]86-*)        target_makefile_frag=config/mt-x86pic ;;
 759     powerpc*-*)         target_makefile_frag=config/mt-ppcpic ;;
 760     *)                  target_makefile_frag=config/mt-${target_cpu}pic ;;
 761   esac
 762 fi
 763
 764 # post-target:
 765
 766 # Make sure that the compiler is able to generate an executable.  If it
 767 # can't, we are probably in trouble.  We don't care whether we can run the
 768 # executable--we might be using a cross compiler--we only care whether it
 769 # can be created.  At this point the main configure script has set CC.
 770 echo "int main () { return 0; }" > conftest.c
 771 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
 772 if [ $? = 0 ] && [ -s conftest ]; then
 773   :
 774 else
 775   echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
 776   echo 1>&2 "*** You must set the environment variable CC to a working compiler."
 777   rm -f conftest*
 778   exit 1
 779 fi
 780 rm -f conftest*
 781
 782 # The Solaris /usr/ucb/cc compiler does not appear to work.
 783 case "${host}" in
 784   sparc-sun-solaris2*)
 785       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
 786       if [ "`/usr/bin/which $CCBASE`" = "/usr/ucb/cc" ] ; then
 787           could_use=
 788           [ -d /opt/SUNWspro/bin ] && could_use="/opt/SUNWspro/bin"
 789           if [ -d /opt/cygnus/bin ] ; then
 790               if [ "$could_use" = "" ] ; then
 791                   could_use="/opt/cygnus/bin"
 792               else
 793                   could_use="$could_use or /opt/cygnus/bin"
 794               fi
 795           fi
 796         if [ "$could_use" = "" ] ; then
 797             echo "Warning: compilation may fail because you're using"
 798             echo "/usr/ucb/cc.  You should change your PATH or CC "
 799             echo "variable and rerun configure."
 800         else
 801             echo "Warning: compilation may fail because you're using"
 802             echo "/usr/ucb/cc, when you should use the C compiler from"
 803             echo "$could_use.  You should change your"
 804             echo "PATH or CC variable and rerun configure."
 805         fi
 806       fi
 807   ;;
 808 esac
 809
 810 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
 811 # binutils tools will find libbfd.so.
 812 if [ "${shared}" = "yes" ]; then
 813   sed -e 's/^SET_LIB_PATH[      ]*=.*$/SET_LIB_PATH = $(REALLY_SET_LIB_PATH)/' \
 814       Makefile > Makefile.tem
 815   rm -f Makefile
 816   mv -f Makefile.tem Makefile
 817
 818   case "${host}" in
 819   *-*-hpux*)
 820     sed -e 's/RPATH_ENVVAR[     ]*=.*$/RPATH_ENVVAR = SHLIB_PATH/' \
 821         Makefile > Makefile.tem
 822     rm -f Makefile
 823     mv -f Makefile.tem Makefile
 824     ;;
 825   esac
 826 fi
 827
 828 # If we are building for a cygwin32 host, then set INSTALL_PROGRAM_ARGS to
 829 # -x.  This will cause programs to be installed with .exe extensions.
 830 case "${host}" in
 831 *-*-cygwin32*)
 832     sed -e 's/^INSTALL_PROGRAM_ARGS[    ]*=.*$/INSTALL_PROGRAM_ARGS = -x/' \
 833         Makefile > Makefile.tem
 834     rm -f Makefile
 835     mv -f Makefile.tem Makefile
 836     ;;
 837 esac
 838
 839 # Record target_configdirs and the configure arguments in Makefile.
 840 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
 841 targargs=`echo "${arguments}" | \
 842         sed -e 's/--norecursion//' \
 843             -e 's/--cache[a-z-]*=[^     ]*//' \
 844             -e 's/--ho[a-z-]*=[^        ]*//' \
 845             -e 's/--bu[a-z-]*=[^        ]*//' \
 846             -e 's/--ta[a-z-]*=[^        ]*//'`
 847
 848 # Passing a --with-cross-host argument lets the target libraries know
 849 # whether they are being built with a cross-compiler or being built
 850 # native.  However, it would be better to use other mechanisms to make the
 851 # sorts of decisions they want to make on this basis.  Please consider
 852 # this option to be deprecated.  FIXME.
 853 if [ x${is_cross_compiler} = xyes ]; then
 854   targargs="--with-cross-host=${host_alias} ${targargs}"
 855 fi
 856
 857 # Default to --enable-multilib.
 858 if [ x${enable_multilib} = x ]; then
 859   targargs="--enable-multilib ${targargs}"
 860 fi
 861
 862 targargs="--host=${target_alias} --build=${build_alias} ${targargs}"
 863 sed -e "s:^TARGET_CONFIGDIRS[   ]*=.*$:TARGET_CONFIGDIRS = ${target_configdirs}:" \
 864     -e "s%^CONFIG_ARGUMENTS[    ]*=.*$%CONFIG_ARGUMENTS = ${targargs}%" \
 865     -e "s%^TARGET_SUBDIR[       ]*=.*$%TARGET_SUBDIR = ${target_subdir}%" \
 866        Makefile > Makefile.tem
 867 rm -f Makefile
 868 mv -f Makefile.tem Makefile
 869
 870 #
 871 # Local Variables:
 872 # fill-column: 131
 873 # End:
 874 #