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 # Handle ${copy_dirs}
 301 set fnord ${copy_dirs}
 302 shift
 303 while [ $# != 0 ]; do
 304   if [ -f $2/COPIED ] && [ x"`cat $2/COPIED`" = x"$1" ]; then
 305     :
 306   else
 307     echo Copying $1 to $2
 308
 309     # Use the install script to create the directory and all required
 310     # parent directories.
 311     if [ -d $2 ]; then
 312       :
 313     else
 314       echo >config.temp
 315       ${srcdir}/install.sh -c -m 644 config.temp $2/COPIED
 316     fi
 317
 318     # Copy the directory, assuming we have tar.
 319     # FIXME: Should we use B in the second tar?  Not all systems support it.
 320     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 321
 322     # It is the responsibility of the user to correctly adjust all
 323     # symlinks.  If somebody can figure out how to handle them correctly
 324     # here, feel free to add the code.
 325
 326     echo $1 > $2/COPIED
 327   fi
 328   shift; shift
 329 done
 330
 331 # Configure extra directories which are host specific
 332
 333 case "${host}" in
 334   i[345]86-*-win32* | i[345]86-*-go32*)
 335           configdirs="$configdirs dosrel" ;;
 336 esac
 337
 338 # Remove more programs from consideration, based on the host or
 339 # target this usually means that a port of the program doesn't
 340 # exist yet.
 341
 342 noconfigdirs=""
 343
 344 case "${host}" in
 345   i[345]86-*-vsta)
 346     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 347     ;;
 348   i[345]86-*-go32)
 349     noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 350         ;;
 351   i[345]86-*-win32)
 352      noconfigdirs="patch diff flex make tk tcl expect dejagnu cvs autoconf texinfo bison send-pr gprof rcs"
 353     ;;
 354 esac
 355
 356
 357 case "${target}" in
 358   *-*-netware)
 359     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-librx target-newlib target-libiberty"
 360     ;;
 361   *-*-vxworks5.1)
 362     noconfigdirs="$noconfigdirs target-newlib"
 363     ;;
 364   alpha-dec-osf*)
 365     # ld works, but does not support shared libraries.  emacs doesn't
 366     # work.  newlib is not 64 bit ready.  I'm not sure about fileutils or grep.
 367     noconfigdirs="$noconfigdirs ld emacs fileutils grep target-newlib"
 368     ;;
 369   alpha*-*-*)
 370     # newlib is not 64 bit ready
 371     noconfigdirs="$noconfigdirs target-newlib"
 372     ;;
 373 # start-sanitize-arc
 374   arc-*-*)
 375     ;;
 376 # end-sanitize-arc
 377 # start-sanitize-psion
 378   arm-*-pe*)
 379     ;;
 380 # end-sanitize-psion
 381   arm-*-riscix*)
 382     noconfigdirs="$noconfigdirs ld"
 383     ;;
 384   h8300*-*-* | \
 385   h8500-*-*)
 386     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx"
 387     ;;
 388   hppa*-*-*elf* | \
 389   hppa*-*-lites*)
 390     # Do configure ld/binutils/gas for this case.
 391     ;;
 392   hppa*-*-*)
 393     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 394     # cc is gcc, and on any system a user should be able to link cc to
 395     # whatever they want.  FIXME, emacs emacs19).
 396     case "${CC}" in
 397         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 398         *) ;;
 399     esac
 400     noconfigdirs="$noconfigdirs ld shellutils"
 401     ;;
 402   i[345]86-*-go32)
 403     # but don't build gdb
 404     noconfigdirs="$noconfigdirs gdb target-libg++ target-libstdc++ target-libio target-librx"
 405     ;;
 406
 407   i[345]86-*-win32)
 408     # Can't build gdb for win32 if not native.
 409     # make/glob's configure uses some AC_TRY_RUN type tests
 410     target_configdirs="$target_configdirs target-winsup"
 411     if [ x${is_cross_compiler} = xyes ]; then
 412             noconfigdirs="$noconfigdirs gdb tk make"
 413     fi
 414     # always build newlib.
 415     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 416     ;;
 417   i[345]86-*-pe)
 418     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx"
 419     ;;
 420   i[345]86-*-sco*)
 421     noconfigdirs="$noconfigdirs gprof"
 422     ;;
 423   i[345]86-*-solaris2*)
 424     # The linker does static linking correctly, but the Solaris C library
 425     # has bugs such that some important functions won't work when statically
 426     # linked.  (See man pages for getpwuid, for example.)
 427     noconfigdirs="$noconfigdirs ld"
 428     ;;
 429   i[345]86-*-sysv4*)
 430     # The SYSV4 C compiler doesn't handle Emacs correctly
 431     case "${CC}" in
 432         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 433         *) ;;
 434     esac
 435     # but that's okay since emacs doesn't work anyway
 436     noconfigdirs="$noconfigdirs emacs emacs19"
 437     ;;
 438 # start-sanitize-jaguar
 439   jaguar-*-*)
 440     ;;
 441 # end-sanitize-jaguar
 442   powerpc-*-aix*)
 443     # copied from rs6000-*-* entry
 444     noconfigdirs="$noconfigdirs gprof cvs"
 445     ;;
 446   powerpc*-*-winnt* | powerpc*-*-pe*)
 447     noconfigdirs="$noconfigdirs gdb"
 448     ;;
 449   rs6000-*-lynxos*)
 450     # The CVS server code doesn't work on the RS/6000
 451     # Newlib makes problems for libg++ in crosses.
 452     noconfigdirs="$noconfigdirs target-newlib gprof cvs"
 453     ;;
 454   rs6000-*-*)
 455     noconfigdirs="$noconfigdirs gprof"
 456     ;;
 457   m68k-*-netbsd*)
 458     noconfigdirs="$noconfigdirs gdb"
 459     ;;
 460   m68k-apollo-*)
 461     noconfigdirs="$noconfigdirs ld binutils gprof"
 462     ;;
 463   mips*-*-irix5*)
 464     # The GNU linker does not support shared libraries.
 465     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 466     noconfigdirs="$noconfigdirs ld gprof emacs"
 467     ;;
 468   mips*-dec-bsd*)
 469     noconfigdirs="$noconfigdirs gprof"
 470     ;;
 471   mips*-*-bsd*)
 472     noconfigdirs="$noconfigdirs gprof"
 473     ;;
 474   mips*-*-*)
 475     noconfigdirs="$noconfigdirs gprof"
 476     ;;
 477   romp-*-*)
 478     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes"
 479     ;;
 480   sh-*-*)
 481     case "${host}" in
 482       i[345]86-*-vsta) ;; # don't add gprof back in
 483       i[345]86-*-go32) ;; # don't add gprof back in
 484       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 485     esac
 486     ;;
 487   sparc-*-sunos4*)
 488     if [ x${is_cross_compiler} != xno ] ; then
 489            noconfigdirs="$noconfigdirs gdb gdbtest target-newlib"
 490     else
 491            use_gnu_ld=no
 492     fi
 493     ;;
 494   v810-*-*)
 495     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libg++ target-libstdc++ opcodes"
 496     ;;
 497   vax-*-vms)
 498     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes"
 499     ;;
 500   vax-*-*)
 501     noconfigdirs="$noconfigdirs target-newlib"
 502     ;;
 503   *-*-lynxos*)
 504     # Newlib makes problems for libg++ in crosses.
 505     noconfigdirs="$noconfigdirs target-newlib"
 506     ;;
 507   *-*-macos* | \
 508   *-*-mpw*)
 509     # Macs want a resource compiler.
 510     configdirs="$configdirs grez"
 511     ;;
 512 esac
 513
 514 # If we are building a Canadian Cross, discard tools that can not be built
 515 # using a cross compiler.  FIXME: These tools should be fixed.
 516 if [ "${build}" != "${host}" ]; then
 517   noconfigdirs="$noconfigdirs expect dejagnu make texinfo diff"
 518 fi
 519
 520 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
 521 # $target_configdirs.
 522 # If we have the source for $noconfigdirs entries, add them to $notsupp.
 523
 524 notsupp=""
 525 for dir in . $skipdirs $noconfigdirs ; do
 526   dirname=`echo $dir | sed -e s/target-//g`
 527   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 528     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 529     if [ -r $srcdir/$dirname/configure ] \
 530         || [ -r $srcdir/$dirname/configure.in ]; then
 531       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 532         true
 533       else
 534         notsupp="$notsupp $dir"
 535       fi
 536     fi
 537   fi
 538   if [ $dir != . ]  && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 539     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
 540     if [ -r $srcdir/$dirname/configure ] \
 541         || [ -r $srcdir/$dirname/configure.in ]; then
 542       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 543         true
 544       else
 545         notsupp="$notsupp $dir"
 546       fi
 547     fi
 548   fi
 549 done
 550
 551 # Sometimes the tools are distributed with libiberty but with no other
 552 # libraries.  In that case, we don't want to build target-libiberty.
 553 if [ -n "${target_configdirs}" ]; then
 554   others=
 555   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
 556     if [ "$i" != "libiberty" ]; then
 557       if [ -r $srcdir/$i/configure ] || [ -r $srcdir/$i/configure.in ]; then
 558         others=yes;
 559         break;
 560       fi
 561     fi
 562   done
 563   if [ -z "${others}" ]; then
 564     target_configdirs=
 565   fi
 566 fi
 567
 568 # Deconfigure all subdirectories, in case we are changing the
 569 # configuration from one where a subdirectory is supported to one where it
 570 # is not.
 571 if [ -z "${norecursion}" -a -n "${configdirs}" ]; then
 572   for i in `echo ${configdirs} | sed -e s/target-//g` ; do
 573     rm -f $i/Makefile
 574   done
 575 fi
 576 if [ -z "${norecursion}" -a -n "${target_configdirs}" ]; then
 577   for i in `echo ${target_configdirs} | sed -e s/target-//` ; do
 578     rm -f ${target_subdir}/$i/Makefile
 579   done
 580 fi
 581
 582 # Produce a warning message for the subdirs we can't configure.
 583 # This isn't especially interesting in the Cygnus tree, but in the individual
 584 # FSF releases, it's important to let people know when their machine isn't
 585 # supported by the one or two programs in a package.
 586
 587 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 588   # If $appdirs is non-empty, at least one of those directories must still
 589   # be configured, or we error out.  (E.g., if the gas release supports a
 590   # specified target in some subdirs but not the gas subdir, we shouldn't
 591   # pretend that all is well.)
 592   if [ -n "$appdirs" ]; then
 593     for dir in $appdirs ; do
 594       if [ -r $dir/Makefile.in ]; then
 595         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 596           appdirs=""
 597           break
 598         fi
 599         if echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 600           appdirs=""
 601           break
 602         fi
 603       fi
 604     done
 605     if [ -n "$appdirs" ]; then
 606       echo "*** This configuration is not supported by this package." 1>&2
 607       exit 1
 608     fi
 609   fi
 610   # Okay, some application will build, or we don't care to check.  Still
 611   # notify of subdirs not getting built.
 612   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 613   echo "    ${notsupp}" 1>&2
 614   echo "    (Any other directories should still work fine.)" 1>&2
 615 fi
 616
 617 # Set with_gnu_as and with_gnu_ld as appropriate.
 618 #
 619 # This is done by determining whether or not the appropriate directory
 620 # is available, and by checking whether or not specific configurations
 621 # have requested that this magic not happen.
 622 #
 623 # The command line options always override the explicit settings in
 624 # configure.in, and the settings in configure.in override this magic.
 625 #
 626 # If the default for a toolchain is to use GNU as and ld, and you don't
 627 # want to do that, then you should use the --without-gnu-as and
 628 # --without-gnu-ld options for the configure script.
 629
 630 if [ x${use_gnu_as} = x ] ; then
 631   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 632     with_gnu_as=yes
 633     withoptions="$withoptions --with-gnu-as"
 634   fi
 635 fi
 636
 637 if [ x${use_gnu_ld} = x ] ; then
 638   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 639     with_gnu_ld=yes
 640     withoptions="$withoptions --with-gnu-ld"
 641   fi
 642 fi
 643
 644 if [ x${enable_shared} = xyes ]; then
 645   case "${target}" in
 646     hppa*)              target_makefile_frag=config/mt-papic ;;
 647     i[345]86-*)         target_makefile_frag=config/mt-x86pic ;;
 648     *)                  target_makefile_frag=config/mt-${target_cpu}pic ;;
 649   esac
 650 fi
 651
 652 # post-target:
 653
 654 # Record target_configdirs and the configure arguments in Makefile.
 655 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
 656 targargs=`echo "${arguments}" | \
 657         sed -e 's/--norecursion//' \
 658             -e 's/--cache[a-z-]*=[^     ]*//' \
 659             -e 's/--ho[a-z-]*=[^        ]*//' \
 660             -e 's/--ta[a-z-]*=[^        ]*//'`
 661
 662 # Passing a --with-cross-host argument lets the target libraries know
 663 # whether they are being built with a cross-compiler or being built
 664 # native.  However, it would be better to use other mechanisms to make the
 665 # sorts of decisions they want to make on this basis.  Please consider
 666 # this option to be deprecated.  FIXME.
 667 if [ x${is_cross_compiler} = xyes ]; then
 668   targargs="--with-cross-host=${host_alias} ${targargs}"
 669 fi
 670
 671 targargs="--host=${target_alias} ${targargs}"
 672 sed -e "s:^TARGET_CONFIGDIRS[   ]*=.*$:TARGET_CONFIGDIRS = ${target_configdirs}:" \
 673     -e "s%^CONFIG_ARGUMENTS[    ]*=.*$%CONFIG_ARGUMENTS = ${targargs}%" \
 674     -e "s%^TARGET_SUBDIR[       ]*=.*$%TARGET_SUBDIR = ${target_subdir}%" \
 675        Makefile > Makefile.tem
 676 rm -f Makefile
 677 mv -f Makefile.tem Makefile
 678
 679 #
 680 # Local Variables:
 681 # fill-column: 131
 682 # End:
 683 #