configure.in

   1 ##############################################################################
   2
   3 ## This file is a shell script fragment that supplies the information
   4 ## necessary to tailor a template configure script into the configure
   5 ## script appropriate for this directory.  For more information, check
   6 ## any existing configure script.
   7
   8 ## Be warned, there are two types of configure.in files.  There are those
   9 ## used by Autoconf, which are macros which are expanded into a configure
  10 ## script by autoconf.  The other sort, of which this is one, is executed
  11 ## by Cygnus configure.
  12
  13 ## For more information on these two systems, check out the documentation
  14 ## for 'Autoconf' (autoconf.texi) and 'Configure' (configure.texi).
  15
  16 ##############################################################################
  17
  18 ### To add a new directory to the tree, first choose whether it is a target
  19 ### or a host dependent tool.  Then put it into the appropriate list
  20 ### (library or tools, host or target), doing a dependency sort.  For
  21 ### example, gdb requires that byacc (or bison) be built first, so it is in
  22 ### the ${host_tools} list after byacc and bison.
  23
  24
  25 # these libraries are used by various programs built for the host environment
  26 #
  27 host_libs="mmalloc libiberty opcodes bfd readline gash tcl tk tclX"
  28
  29 if [ "${enable_gdbgui}" = "yes" ] ; then
  30         host_libs="${host_libs} libgui"
  31 fi
  32
  33 # these tools are built for the host environment
  34 #
  35 host_tools="texinfo byacc flex bison binutils ld gas gcc gdb make patch
  36             prms send-pr gprof gdbtest tgas etc expect dejagnu sim
  37             m4 autoconf ispell grep diff rcs cvs fileutils shellutils
  38             textutils wdiff find emacs emacs19 uudecode hello tar gzip indent
  39             recode release sed utils"
  40
  41
  42 # these libraries are built for the target environment, and are built after
  43 # the host libraries and the host tools (which may be a cross compiler)
  44 #
  45 target_libs="target-libiberty target-libgloss target-newlib target-libio target-librx target-libstdc++ target-libg++"
  46
  47
  48 # these tools are built using the target libs, and are intended to run only
  49 # in the target environment
  50 #
  51 # note: any program that *uses* libraries that are in the "target_libs"
  52 # list belongs in this list.  those programs are also very likely
  53 # candidates for the "native_only" list which follows
  54 #
  55 target_tools="target-examples target-groff"
  56
  57 ################################################################################
  58
  59 ## These two lists are of directories that are to be removed from the
  60 ## ${configdirs} list for either cross-compilations or for native-
  61 ## compilations.  For example, it doesn't make that much sense to
  62 ## cross-compile Emacs, nor is it terribly useful to compile target-libiberty in
  63 ## a native environment.
  64
  65 # directories to be built in the native environment only
  66 #
  67 native_only="autoconf cvs emacs emacs19 fileutils find grep gzip hello
  68              indent ispell m4 rcs recode sed shellutils tar textutils gash
  69              uudecode wdiff gprof target-groff"
  70
  71 # directories to be built in a cross environment only
  72 #
  73 cross_only="target-libiberty target-libgloss target-newlib"
  74
  75 ## All tools belong in one of the four categories, and are assigned above
  76 ## We assign ${configdirs} this way to remove all embedded newlines.  This
  77 ## is important because configure will choke if they ever get through.
  78 ## ${configdirs} is directories we build using the host tools.
  79 ## ${target_configdirs} is directories we build using the target tools.
  80 #
  81 configdirs=`echo ${host_libs} ${host_tools}`
  82 target_configdirs=`echo ${target_libs} ${target_tools}`
  83
  84 ################################################################################
  85
  86 srctrigger=move-if-change
  87 srcname="gnu development package"
  88
  89 # This gets set non-empty for some net releases of packages.
  90 appdirs=""
  91
  92 # per-host:
  93
  94 # Work in distributions that contain no compiler tools, like Autoconf.
  95 if [ -d ${srcdir}/config ]; then
  96 case "${host}" in
  97   m68k-hp-hpux*)          host_makefile_frag=config/mh-hp300 ;;
  98   m68k-apollo-sysv*)      host_makefile_frag=config/mh-apollo68 ;;
  99   m68k-apollo-bsd*)       host_makefile_frag=config/mh-a68bsd ;;
 100   m88k-dg-dgux*)          host_makefile_frag=config/mh-dgux ;;
 101   m88k-harris-cxux*)      host_makefile_frag=config/mh-cxux ;;
 102   m88k-motorola-sysv*)    host_makefile_frag=config/mh-delta88;;
 103   mips*-dec-ultrix*)      host_makefile_frag=config/mh-decstation ;;
 104   mips*-sgi-irix[56]*)    host_makefile_frag=config/mh-irix5 ;;
 105   mips*-sgi-irix4*)       host_makefile_frag=config/mh-irix4 ;;
 106   mips*-sgi-irix3*)       host_makefile_frag=config/mh-sysv ;;
 107   mips*-*-sysv4*)         host_makefile_frag=config/mh-sysv4 ;;
 108   mips*-*-sysv*)          host_makefile_frag=config/mh-riscos ;;
 109   i[345]86-ncr-sysv4.3)   host_makefile_frag=config/mh-ncrsvr43 ;;
 110   i[345]86-ncr-sysv4*)    host_makefile_frag=config/mh-ncr3000 ;;
 111   i[345]86-*-sco*)        host_makefile_frag=config/mh-sco ;;
 112   i[345]86-*-isc*)        host_makefile_frag=config/mh-sysv ;;
 113   i[345]86-*-linux*)      host_makefile_frag=config/mh-linux ;;
 114   i[345]86-*-solaris2*)   host_makefile_frag=config/mh-sysv4 ;;
 115   i[345]86-*-aix*)        host_makefile_frag=config/mh-aix386 ;;
 116   i[345]86-*-go32*)       host_makefile_frag=config/mh-go32 ;;
 117   i[345]86-*-win32)       host_makefile_frag=config/mh-i386win32 ;;
 118   vax-*-ultrix2*)         host_makefile_frag=config/mh-vaxult2 ;;
 119   *-*-solaris2*)          host_makefile_frag=config/mh-solaris ;;
 120   m68k-sun-sunos*)        host_makefile_frag=config/mh-sun3 ;;
 121   *-hp-hpux[78]*)         host_makefile_frag=config/mh-hpux8 ;;
 122   *-hp-hpux*)             host_makefile_frag=config/mh-hpux ;;
 123   *-*-hiux*)              host_makefile_frag=config/mh-hpux ;;
 124   rs6000-*-lynxos*)       host_makefile_frag=config/mh-lynxrs6k ;;
 125   *-*-lynxos*)            host_makefile_frag=config/mh-lynxos ;;
 126   *-*-sysv4*)             host_makefile_frag=config/mh-sysv4 ;;
 127   *-*-sysv*)              host_makefile_frag=config/mh-sysv ;;
 128 esac
 129 fi
 130
 131 # See if we can extract a definition of CC from the fragment.
 132 if [ -z "${CC}" ]; then
 133   if [ -n "${host_makefile_frag}" -a -f "${srcdir}/${host_makefile_frag}" ]; then
 134     xx=`sed -n -e 's/^[         ]*CC[   ]*=[    ]*\(.*\)$/\1/p' < ${srcdir}/${host_makefile_frag}`
 135     if [ -n "${xx}" ] ; then
 136       CC=$xx
 137     fi
 138   fi
 139 fi
 140
 141 # The Solaris /usr/ucb/cc compiler does not appear to work.
 142 case "${host}" in
 143   sparc-sun-solaris2*)
 144       if [ "`/usr/bin/which ${CC-cc}`" = "/usr/ucb/cc" ] ; then
 145           could_use=
 146           [ -d /opt/SUNWspro/bin ] && could_use="/opt/SUNWspro/bin"
 147           if [ -d /opt/cygnus/bin ] ; then
 148               if [ "$could_use" = "" ] ; then
 149                   could_use="/opt/cygnus/bin"
 150               else
 151                   could_use="$could_use or /opt/cygnus/bin"
 152               fi
 153           fi
 154         if [ "$could_use" = "" ] ; then
 155             echo "Warning: compilation may fail because you're using"
 156             echo "/usr/ucb/cc.  You should change your PATH or CC "
 157             echo "variable and rerun configure."
 158         else
 159             echo "Warning: compilation may fail because you're using"
 160             echo "/usr/ucb/cc, when you should use the C compiler from"
 161             echo "$could_use.  You should change your"
 162             echo "PATH or CC variable and rerun configure."
 163         fi
 164       fi
 165   ;;
 166 esac
 167
 168 # We default to --with-shared on platforms where -fpic is meaningless.
 169 # Well, we don't yet, but we will.
 170 if false && [ "${host}" = "${target}" ] && [ x${enable_shared} = x ]; then
 171   case "${target}" in
 172     alpha-dec-osf*)     enable_shared=yes ;;
 173     mips-sgi-irix5*)    enable_shared=yes ;;
 174     *)                  enable_shared=no ;;
 175   esac
 176 fi
 177
 178 if [ x${enable_shared} = xyes ]; then
 179   waugh=
 180   case "${host}" in
 181     hppa*)              waugh=config/mh-papic ;;
 182     i[345]86-*)         waugh=config/mh-x86pic ;;
 183     *)                  waugh=config/mh-${host_cpu}pic ;;
 184   esac
 185   if [ -f ${srcdir}/${waugh} ]; then
 186     if [ -n "${host_makefile_frag}" ] ; then
 187       cat ${srcdir}/${host_makefile_frag} > mh-frag
 188       cat ${srcdir}/${waugh} >> mh-frag
 189       host_makefile_frag=mh-frag
 190     else
 191       host_makefile_frag=${waugh}
 192     fi
 193   fi
 194 fi
 195
 196 # per-target:
 197
 198 case "${target}" in
 199   v810*)                target_makefile_frag=config/mt-v810 ;;
 200   i[345]86-*-netware*)  target_makefile_frag=config/mt-netware ;;
 201   powerpc-*-netware*)   target_makefile_frag=config/mt-netware ;;
 202 esac
 203
 204 skipdirs=
 205 gasdir=gas
 206 use_gnu_ld=
 207 use_gnu_as=
 208
 209 # some tools are so dependent upon X11 that if we're not building with X,
 210 # it's not even worth trying to configure, much less build, that tool.
 211
 212 case ${with_x} in
 213   yes | "")  # the default value for this tree is that X11 is available
 214         ;;
 215   no)
 216         skipdirs="${skipdirs} tk gash"
 217         ;;
 218   *)
 219         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 220         ;;
 221 esac
 222
 223 # Some tools are only suitable for building in a "native" situation.
 224 # Those are added when we have a host==target configuration.  For cross
 225 # toolchains, we add some directories that should only be useful in a
 226 # cross-compiler.
 227
 228 is_cross_compiler=
 229
 230 if [ x"${host}" = x"${target}" ] ; then
 231         # when doing a native toolchain, don't build the targets
 232         # that are in the 'cross only' list
 233         skipdirs="${skipdirs} ${cross_only}"
 234         is_cross_compiler=no
 235         target_subdir=.
 236 else
 237         # similarly, don't build the targets in the 'native only'
 238         # list when building a cross compiler
 239         skipdirs="${skipdirs} ${native_only}"
 240         is_cross_compiler=yes
 241         target_subdir=${target_alias}
 242         if [ ! -d ${target_subdir} ] ; then
 243             if mkdir ${target_subdir} ; then true
 244             else
 245                 echo "'*** could not make ${PWD=`pwd`}/${target_subdir}" 1>&2
 246                 exit 1
 247             fi
 248         fi
 249 fi
 250
 251 copy_dirs=
 252
 253 # Handle --with-headers=XXX.  The contents of the named directory are
 254 # copied to $(tooldir)/sys-include.
 255 if [ x"${with_headers}" != x ]; then
 256   if [ x${is_cross_compiler} = xno ]; then
 257     echo 1>&2 '***' --with-headers is only supported when cross compiling
 258     exit 1
 259   fi
 260   case "${exec_prefixoption}" in
 261   "") x=${prefix} ;;
 262   *) x=${exec_prefix} ;;
 263   esac
 264   copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
 265 fi
 266
 267 # Handle --with-libs=XXX.  Multiple directories are permitted.  The
 268 # contents are copied to $(tooldir)/lib.
 269 if [ x"${with_libs}" != x ]; then
 270   if [ x${is_cross_compiler} = xno ]; then
 271     echo 1>&2 '***' --with-libs is only supported when cross compiling
 272     exit 1
 273   fi
 274   # Copy the libraries in reverse order, so that files in the first named
 275   # library override files in subsequent libraries.
 276   case "${exec_prefixoption}" in
 277   "") x=${prefix} ;;
 278   *) x=${exec_prefix} ;;
 279   esac
 280   for l in ${with_libs}; do
 281     copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 282   done
 283 fi
 284
 285 # If both --with-headers and --with-libs are specified, default to
 286 # --without-newlib.
 287 if [ x"${with_headers}" != x ] && [ x"${with_libs}" != x ]; then
 288   if [ x"${with_newlib}" = x ]; then
 289     with_newlib=no
 290   fi
 291 fi
 292
 293 # Recognize --with-newlib/--without-newlib.
 294 if [ x${with_newlib} = xno ]; then
 295   skipdirs="${skipdirs} target-newlib"
 296 elif [ x${with_newlib} = xyes ]; then
 297   skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 298 fi
 299
 300 # Default to using --with-stabs for certain targets.
 301 if [ x${with_stabs} = x ]; then
 302   case "${target}" in
 303   mips*-*-* | alpha*-*-osf* | i[345]86*-*-sysv4* | i[345]86*-*-unixware*)
 304     with_stabs=yes;
 305     withoptions="${withoptions} --with-stabs"
 306     ;;
 307   esac
 308 fi
 309
 310 # Handle ${copy_dirs}
 311 set fnord ${copy_dirs}
 312 shift
 313 while [ $# != 0 ]; do
 314   if [ -f $2/COPIED ] && [ x"`cat $2/COPIED`" = x"$1" ]; then
 315     :
 316   else
 317     echo Copying $1 to $2
 318
 319     # Use the install script to create the directory and all required
 320     # parent directories.
 321     if [ -d $2 ]; then
 322       :
 323     else
 324       echo >config.temp
 325       ${srcdir}/install.sh -c -m 644 config.temp $2/COPIED
 326     fi
 327
 328     # Copy the directory, assuming we have tar.
 329     # FIXME: Should we use B in the second tar?  Not all systems support it.
 330     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 331
 332     # It is the responsibility of the user to correctly adjust all
 333     # symlinks.  If somebody can figure out how to handle them correctly
 334     # here, feel free to add the code.
 335
 336     echo $1 > $2/COPIED
 337   fi
 338   shift; shift
 339 done
 340
 341 # Configure extra directories which are host specific
 342
 343 case "${host}" in
 344   i[345]86-*-win32* | i[345]86-*-go32*)
 345           configdirs="$configdirs dosrel" ;;
 346 esac
 347
 348 # Remove more programs from consideration, based on the host or
 349 # target this usually means that a port of the program doesn't
 350 # exist yet.
 351
 352 noconfigdirs=""
 353
 354 case "${host}" in
 355   i[345]86-*-vsta)
 356     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 357     ;;
 358   i[345]86-*-go32)
 359     noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 360         ;;
 361   i[345]86-*-win32)
 362      noconfigdirs="patch diff flex make tk tcl expect dejagnu cvs autoconf texinfo bison send-pr gprof rcs"
 363     ;;
 364   ppc*-*-pe)
 365      noconfigdirs="patch diff flex make tk tcl expect dejagnu cvs autoconf texinfo bison send-pr gprof rcs"
 366     ;;
 367 esac
 368
 369
 370 case "${target}" in
 371   *-*-netware)
 372     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-librx target-newlib target-libiberty"
 373     ;;
 374   *-*-vxworks*)
 375     noconfigdirs="$noconfigdirs target-newlib"
 376     ;;
 377   alpha-dec-osf*)
 378     # ld works, but does not support shared libraries.  emacs doesn't
 379     # work.  newlib is not 64 bit ready.  I'm not sure about fileutils or grep.
 380     # gas doesn't generate exception information.
 381     noconfigdirs="$noconfigdirs gas ld emacs fileutils grep target-newlib"
 382     ;;
 383   alpha*-*-*)
 384     # newlib is not 64 bit ready
 385     noconfigdirs="$noconfigdirs target-newlib"
 386     ;;
 387 # start-sanitize-arc
 388   arc-*-*)
 389     ;;
 390 # end-sanitize-arc
 391 # start-sanitize-psion
 392   arm-*-pe*)
 393     ;;
 394 # end-sanitize-psion
 395   arm-*-riscix*)
 396     noconfigdirs="$noconfigdirs ld"
 397     ;;
 398   h8300*-*-* | \
 399   h8500-*-*)
 400     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx"
 401     ;;
 402   hppa*-*-*elf* | \
 403   hppa*-*-lites*)
 404     # Do configure ld/binutils/gas for this case.
 405     ;;
 406   hppa*-*-*)
 407     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 408     # cc is gcc, and on any system a user should be able to link cc to
 409     # whatever they want.  FIXME, emacs emacs19).
 410     case "${CC}" in
 411         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 412         *) ;;
 413     esac
 414     noconfigdirs="$noconfigdirs ld shellutils"
 415     ;;
 416   i[345]86-*-go32)
 417     # but don't build gdb
 418     noconfigdirs="$noconfigdirs gdb target-libg++ target-libstdc++ target-libio target-librx"
 419     ;;
 420
 421   i[345]86-*-win32)
 422     # Can't build gdb for win32 if not native.
 423     # make/glob's configure uses some AC_TRY_RUN type tests
 424     target_configdirs="$target_configdirs target-winsup"
 425     noconfigdirs="$noconfigdirs gdb tcl tk make"
 426     # always build newlib.
 427     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 428     ;;
 429   i[345]86-*-pe)
 430     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx"
 431     ;;
 432   i[345]86-*-sco*)
 433     noconfigdirs="$noconfigdirs gprof"
 434     ;;
 435   i[345]86-*-solaris2*)
 436     # The linker does static linking correctly, but the Solaris C library
 437     # has bugs such that some important functions won't work when statically
 438     # linked.  (See man pages for getpwuid, for example.)
 439     noconfigdirs="$noconfigdirs ld"
 440     ;;
 441   i[345]86-*-sysv4*)
 442     # The SYSV4 C compiler doesn't handle Emacs correctly
 443     case "${CC}" in
 444         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 445         *) ;;
 446     esac
 447     # but that's okay since emacs doesn't work anyway
 448     noconfigdirs="$noconfigdirs emacs emacs19"
 449     ;;
 450 # start-sanitize-jaguar
 451   jaguar-*-*)
 452     ;;
 453 # end-sanitize-jaguar
 454   powerpc-*-aix*)
 455     # copied from rs6000-*-* entry
 456     noconfigdirs="$noconfigdirs gprof cvs"
 457     ;;
 458   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 459     target_configdirs="$target_configdirs target-winsup"
 460     noconfigdirs="$noconfigdirs gdb tcl tk make expect"
 461     # always build newlib.
 462     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 463     ;;
 464   rs6000-*-lynxos*)
 465     # The CVS server code doesn't work on the RS/6000
 466     # Newlib makes problems for libg++ in crosses.
 467     noconfigdirs="$noconfigdirs target-newlib gprof cvs"
 468     ;;
 469   rs6000-*-*)
 470     noconfigdirs="$noconfigdirs gprof"
 471     ;;
 472   m68k-*-netbsd*)
 473     noconfigdirs="$noconfigdirs gdb"
 474     ;;
 475   m68k-apollo-*)
 476     noconfigdirs="$noconfigdirs ld binutils gprof"
 477     ;;
 478   mips*-*-irix5*)
 479     # The GNU linker does not support shared libraries.
 480     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 481     noconfigdirs="$noconfigdirs ld gprof emacs"
 482     ;;
 483   mips*-dec-bsd*)
 484     noconfigdirs="$noconfigdirs gprof"
 485     ;;
 486   mips*-*-bsd*)
 487     noconfigdirs="$noconfigdirs gprof"
 488     ;;
 489   mips*-*-*)
 490     noconfigdirs="$noconfigdirs gprof"
 491     ;;
 492   romp-*-*)
 493     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes"
 494     ;;
 495   sh-*-*)
 496     case "${host}" in
 497       i[345]86-*-vsta) ;; # don't add gprof back in
 498       i[345]86-*-go32) ;; # don't add gprof back in
 499       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 500     esac
 501     ;;
 502   sparc-*-sunos4*)
 503     if [ x${is_cross_compiler} != xno ] ; then
 504            noconfigdirs="$noconfigdirs gdb gdbtest target-newlib"
 505     else
 506            use_gnu_ld=no
 507     fi
 508     ;;
 509   v810-*-*)
 510     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libio target-libg++ target-libstdc++ opcodes"
 511     ;;
 512   vax-*-vms)
 513     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes"
 514     ;;
 515   vax-*-*)
 516     noconfigdirs="$noconfigdirs target-newlib"
 517     ;;
 518   *-*-lynxos*)
 519     # Newlib makes problems for libg++ in crosses.
 520     noconfigdirs="$noconfigdirs target-newlib"
 521     ;;
 522   *-*-macos* | \
 523   *-*-mpw*)
 524     # Macs want a resource compiler.
 525     configdirs="$configdirs grez"
 526     ;;
 527 esac
 528
 529 # If we are building a Canadian Cross, discard tools that can not be built
 530 # using a cross compiler.  FIXME: These tools should be fixed.
 531 if [ "${build}" != "${host}" ]; then
 532   noconfigdirs="$noconfigdirs expect dejagnu make texinfo diff"
 533 fi
 534
 535 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
 536 # $target_configdirs.
 537 # If we have the source for $noconfigdirs entries, add them to $notsupp.
 538
 539 notsupp=""
 540 for dir in . $skipdirs $noconfigdirs ; do
 541   dirname=`echo $dir | sed -e s/target-//g`
 542   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 543     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 544     if [ -r $srcdir/$dirname/configure ] \
 545         || [ -r $srcdir/$dirname/configure.in ]; then
 546       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 547         true
 548       else
 549         notsupp="$notsupp $dir"
 550       fi
 551     fi
 552   fi
 553   if [ $dir != . ]  && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 554     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
 555     if [ -r $srcdir/$dirname/configure ] \
 556         || [ -r $srcdir/$dirname/configure.in ]; then
 557       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 558         true
 559       else
 560         notsupp="$notsupp $dir"
 561       fi
 562     fi
 563   fi
 564 done
 565
 566 # Sometimes the tools are distributed with libiberty but with no other
 567 # libraries.  In that case, we don't want to build target-libiberty.
 568 if [ -n "${target_configdirs}" ]; then
 569   others=
 570   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
 571     if [ "$i" != "libiberty" ]; then
 572       if [ -r $srcdir/$i/configure ] || [ -r $srcdir/$i/configure.in ]; then
 573         others=yes;
 574         break;
 575       fi
 576     fi
 577   done
 578   if [ -z "${others}" ]; then
 579     target_configdirs=
 580   fi
 581 fi
 582
 583 # Deconfigure all subdirectories, in case we are changing the
 584 # configuration from one where a subdirectory is supported to one where it
 585 # is not.
 586 if [ -z "${norecursion}" -a -n "${configdirs}" ]; then
 587   for i in `echo ${configdirs} | sed -e s/target-//g` ; do
 588     rm -f $i/Makefile
 589   done
 590 fi
 591 if [ -z "${norecursion}" -a -n "${target_configdirs}" ]; then
 592   for i in `echo ${target_configdirs} | sed -e s/target-//` ; do
 593     rm -f ${target_subdir}/$i/Makefile
 594   done
 595 fi
 596
 597 # Produce a warning message for the subdirs we can't configure.
 598 # This isn't especially interesting in the Cygnus tree, but in the individual
 599 # FSF releases, it's important to let people know when their machine isn't
 600 # supported by the one or two programs in a package.
 601
 602 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 603   # If $appdirs is non-empty, at least one of those directories must still
 604   # be configured, or we error out.  (E.g., if the gas release supports a
 605   # specified target in some subdirs but not the gas subdir, we shouldn't
 606   # pretend that all is well.)
 607   if [ -n "$appdirs" ]; then
 608     for dir in $appdirs ; do
 609       if [ -r $dir/Makefile.in ]; then
 610         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 611           appdirs=""
 612           break
 613         fi
 614         if echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 615           appdirs=""
 616           break
 617         fi
 618       fi
 619     done
 620     if [ -n "$appdirs" ]; then
 621       echo "*** This configuration is not supported by this package." 1>&2
 622       exit 1
 623     fi
 624   fi
 625   # Okay, some application will build, or we don't care to check.  Still
 626   # notify of subdirs not getting built.
 627   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 628   echo "    ${notsupp}" 1>&2
 629   echo "    (Any other directories should still work fine.)" 1>&2
 630 fi
 631
 632 # Set with_gnu_as and with_gnu_ld as appropriate.
 633 #
 634 # This is done by determining whether or not the appropriate directory
 635 # is available, and by checking whether or not specific configurations
 636 # have requested that this magic not happen.
 637 #
 638 # The command line options always override the explicit settings in
 639 # configure.in, and the settings in configure.in override this magic.
 640 #
 641 # If the default for a toolchain is to use GNU as and ld, and you don't
 642 # want to do that, then you should use the --without-gnu-as and
 643 # --without-gnu-ld options for the configure script.
 644
 645 if [ x${use_gnu_as} = x ] ; then
 646   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 647     with_gnu_as=yes
 648     withoptions="$withoptions --with-gnu-as"
 649   fi
 650 fi
 651
 652 if [ x${use_gnu_ld} = x ] ; then
 653   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 654     with_gnu_ld=yes
 655     withoptions="$withoptions --with-gnu-ld"
 656   fi
 657 fi
 658
 659 if [ x${enable_shared} = xyes ]; then
 660   case "${target}" in
 661     hppa*)              target_makefile_frag=config/mt-papic ;;
 662     i[345]86-*)         target_makefile_frag=config/mt-x86pic ;;
 663     *)                  target_makefile_frag=config/mt-${target_cpu}pic ;;
 664   esac
 665 fi
 666
 667 # post-target:
 668
 669 # Record target_configdirs and the configure arguments in Makefile.
 670 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
 671 targargs=`echo "${arguments}" | \
 672         sed -e 's/--norecursion//' \
 673             -e 's/--cache[a-z-]*=[^     ]*//' \
 674             -e 's/--ho[a-z-]*=[^        ]*//' \
 675             -e 's/--ta[a-z-]*=[^        ]*//'`
 676
 677 # Passing a --with-cross-host argument lets the target libraries know
 678 # whether they are being built with a cross-compiler or being built
 679 # native.  However, it would be better to use other mechanisms to make the
 680 # sorts of decisions they want to make on this basis.  Please consider
 681 # this option to be deprecated.  FIXME.
 682 if [ x${is_cross_compiler} = xyes ]; then
 683   targargs="--with-cross-host=${host_alias} ${targargs}"
 684 fi
 685
 686 targargs="--host=${target_alias} ${targargs}"
 687 sed -e "s:^TARGET_CONFIGDIRS[   ]*=.*$:TARGET_CONFIGDIRS = ${target_configdirs}:" \
 688     -e "s%^CONFIG_ARGUMENTS[    ]*=.*$%CONFIG_ARGUMENTS = ${targargs}%" \
 689     -e "s%^TARGET_SUBDIR[       ]*=.*$%TARGET_SUBDIR = ${target_subdir}%" \
 690        Makefile > Makefile.tem
 691 rm -f Makefile
 692 mv -f Makefile.tem Makefile
 693
 694 #
 695 # Local Variables:
 696 # fill-column: 131
 697 # End:
 698 #