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 esac
 365
 366
 367 case "${target}" in
 368   *-*-netware)
 369     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-librx target-newlib target-libiberty"
 370     ;;
 371   *-*-vxworks5.1)
 372     noconfigdirs="$noconfigdirs target-newlib"
 373     ;;
 374   alpha-dec-osf*)
 375     # ld works, but does not support shared libraries.  emacs doesn't
 376     # work.  newlib is not 64 bit ready.  I'm not sure about fileutils or grep.
 377     # gas doesn't generate exception information.
 378     noconfigdirs="$noconfigdirs gas ld emacs fileutils grep target-newlib"
 379     ;;
 380   alpha*-*-*)
 381     # newlib is not 64 bit ready
 382     noconfigdirs="$noconfigdirs target-newlib"
 383     ;;
 384 # start-sanitize-arc
 385   arc-*-*)
 386     ;;
 387 # end-sanitize-arc
 388 # start-sanitize-psion
 389   arm-*-pe*)
 390     ;;
 391 # end-sanitize-psion
 392   arm-*-riscix*)
 393     noconfigdirs="$noconfigdirs ld"
 394     ;;
 395   h8300*-*-* | \
 396   h8500-*-*)
 397     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx"
 398     ;;
 399   hppa*-*-*elf* | \
 400   hppa*-*-lites*)
 401     # Do configure ld/binutils/gas for this case.
 402     ;;
 403   hppa*-*-*)
 404     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 405     # cc is gcc, and on any system a user should be able to link cc to
 406     # whatever they want.  FIXME, emacs emacs19).
 407     case "${CC}" in
 408         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 409         *) ;;
 410     esac
 411     noconfigdirs="$noconfigdirs ld shellutils"
 412     ;;
 413   i[345]86-*-go32)
 414     # but don't build gdb
 415     noconfigdirs="$noconfigdirs gdb target-libg++ target-libstdc++ target-libio target-librx"
 416     ;;
 417
 418   i[345]86-*-win32)
 419     # Can't build gdb for win32 if not native.
 420     # make/glob's configure uses some AC_TRY_RUN type tests
 421     target_configdirs="$target_configdirs target-winsup"
 422     if [ x${is_cross_compiler} = xyes ]; then
 423             noconfigdirs="$noconfigdirs gdb tk make"
 424     fi
 425     # always build newlib.
 426     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 427     ;;
 428   i[345]86-*-pe)
 429     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx"
 430     ;;
 431   i[345]86-*-sco*)
 432     noconfigdirs="$noconfigdirs gprof"
 433     ;;
 434   i[345]86-*-solaris2*)
 435     # The linker does static linking correctly, but the Solaris C library
 436     # has bugs such that some important functions won't work when statically
 437     # linked.  (See man pages for getpwuid, for example.)
 438     noconfigdirs="$noconfigdirs ld"
 439     ;;
 440   i[345]86-*-sysv4*)
 441     # The SYSV4 C compiler doesn't handle Emacs correctly
 442     case "${CC}" in
 443         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 444         *) ;;
 445     esac
 446     # but that's okay since emacs doesn't work anyway
 447     noconfigdirs="$noconfigdirs emacs emacs19"
 448     ;;
 449 # start-sanitize-jaguar
 450   jaguar-*-*)
 451     ;;
 452 # end-sanitize-jaguar
 453   powerpc-*-aix*)
 454     # copied from rs6000-*-* entry
 455     noconfigdirs="$noconfigdirs gprof cvs"
 456     ;;
 457   powerpc*-*-winnt* | powerpc*-*-pe*)
 458     noconfigdirs="$noconfigdirs gdb"
 459     ;;
 460   rs6000-*-lynxos*)
 461     # The CVS server code doesn't work on the RS/6000
 462     # Newlib makes problems for libg++ in crosses.
 463     noconfigdirs="$noconfigdirs target-newlib gprof cvs"
 464     ;;
 465   rs6000-*-*)
 466     noconfigdirs="$noconfigdirs gprof"
 467     ;;
 468   m68k-*-netbsd*)
 469     noconfigdirs="$noconfigdirs gdb"
 470     ;;
 471   m68k-apollo-*)
 472     noconfigdirs="$noconfigdirs ld binutils gprof"
 473     ;;
 474   mips*-*-irix5*)
 475     # The GNU linker does not support shared libraries.
 476     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 477     noconfigdirs="$noconfigdirs ld gprof emacs"
 478     ;;
 479   mips*-dec-bsd*)
 480     noconfigdirs="$noconfigdirs gprof"
 481     ;;
 482   mips*-*-bsd*)
 483     noconfigdirs="$noconfigdirs gprof"
 484     ;;
 485   mips*-*-*)
 486     noconfigdirs="$noconfigdirs gprof"
 487     ;;
 488   romp-*-*)
 489     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes"
 490     ;;
 491   sh-*-*)
 492     case "${host}" in
 493       i[345]86-*-vsta) ;; # don't add gprof back in
 494       i[345]86-*-go32) ;; # don't add gprof back in
 495       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 496     esac
 497     ;;
 498   sparc-*-sunos4*)
 499     if [ x${is_cross_compiler} != xno ] ; then
 500            noconfigdirs="$noconfigdirs gdb gdbtest target-newlib"
 501     else
 502            use_gnu_ld=no
 503     fi
 504     ;;
 505   v810-*-*)
 506     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libio target-libg++ target-libstdc++ opcodes"
 507     ;;
 508   vax-*-vms)
 509     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes"
 510     ;;
 511   vax-*-*)
 512     noconfigdirs="$noconfigdirs target-newlib"
 513     ;;
 514   *-*-lynxos*)
 515     # Newlib makes problems for libg++ in crosses.
 516     noconfigdirs="$noconfigdirs target-newlib"
 517     ;;
 518   *-*-macos* | \
 519   *-*-mpw*)
 520     # Macs want a resource compiler.
 521     configdirs="$configdirs grez"
 522     ;;
 523 esac
 524
 525 # If we are building a Canadian Cross, discard tools that can not be built
 526 # using a cross compiler.  FIXME: These tools should be fixed.
 527 if [ "${build}" != "${host}" ]; then
 528   noconfigdirs="$noconfigdirs expect dejagnu make texinfo diff"
 529 fi
 530
 531 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
 532 # $target_configdirs.
 533 # If we have the source for $noconfigdirs entries, add them to $notsupp.
 534
 535 notsupp=""
 536 for dir in . $skipdirs $noconfigdirs ; do
 537   dirname=`echo $dir | sed -e s/target-//g`
 538   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 539     configdirs=`echo " ${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   if [ $dir != . ]  && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 550     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
 551     if [ -r $srcdir/$dirname/configure ] \
 552         || [ -r $srcdir/$dirname/configure.in ]; then
 553       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 554         true
 555       else
 556         notsupp="$notsupp $dir"
 557       fi
 558     fi
 559   fi
 560 done
 561
 562 # Sometimes the tools are distributed with libiberty but with no other
 563 # libraries.  In that case, we don't want to build target-libiberty.
 564 if [ -n "${target_configdirs}" ]; then
 565   others=
 566   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
 567     if [ "$i" != "libiberty" ]; then
 568       if [ -r $srcdir/$i/configure ] || [ -r $srcdir/$i/configure.in ]; then
 569         others=yes;
 570         break;
 571       fi
 572     fi
 573   done
 574   if [ -z "${others}" ]; then
 575     target_configdirs=
 576   fi
 577 fi
 578
 579 # Deconfigure all subdirectories, in case we are changing the
 580 # configuration from one where a subdirectory is supported to one where it
 581 # is not.
 582 if [ -z "${norecursion}" -a -n "${configdirs}" ]; then
 583   for i in `echo ${configdirs} | sed -e s/target-//g` ; do
 584     rm -f $i/Makefile
 585   done
 586 fi
 587 if [ -z "${norecursion}" -a -n "${target_configdirs}" ]; then
 588   for i in `echo ${target_configdirs} | sed -e s/target-//` ; do
 589     rm -f ${target_subdir}/$i/Makefile
 590   done
 591 fi
 592
 593 # Produce a warning message for the subdirs we can't configure.
 594 # This isn't especially interesting in the Cygnus tree, but in the individual
 595 # FSF releases, it's important to let people know when their machine isn't
 596 # supported by the one or two programs in a package.
 597
 598 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 599   # If $appdirs is non-empty, at least one of those directories must still
 600   # be configured, or we error out.  (E.g., if the gas release supports a
 601   # specified target in some subdirs but not the gas subdir, we shouldn't
 602   # pretend that all is well.)
 603   if [ -n "$appdirs" ]; then
 604     for dir in $appdirs ; do
 605       if [ -r $dir/Makefile.in ]; then
 606         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 607           appdirs=""
 608           break
 609         fi
 610         if echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 611           appdirs=""
 612           break
 613         fi
 614       fi
 615     done
 616     if [ -n "$appdirs" ]; then
 617       echo "*** This configuration is not supported by this package." 1>&2
 618       exit 1
 619     fi
 620   fi
 621   # Okay, some application will build, or we don't care to check.  Still
 622   # notify of subdirs not getting built.
 623   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 624   echo "    ${notsupp}" 1>&2
 625   echo "    (Any other directories should still work fine.)" 1>&2
 626 fi
 627
 628 # Set with_gnu_as and with_gnu_ld as appropriate.
 629 #
 630 # This is done by determining whether or not the appropriate directory
 631 # is available, and by checking whether or not specific configurations
 632 # have requested that this magic not happen.
 633 #
 634 # The command line options always override the explicit settings in
 635 # configure.in, and the settings in configure.in override this magic.
 636 #
 637 # If the default for a toolchain is to use GNU as and ld, and you don't
 638 # want to do that, then you should use the --without-gnu-as and
 639 # --without-gnu-ld options for the configure script.
 640
 641 if [ x${use_gnu_as} = x ] ; then
 642   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 643     with_gnu_as=yes
 644     withoptions="$withoptions --with-gnu-as"
 645   fi
 646 fi
 647
 648 if [ x${use_gnu_ld} = x ] ; then
 649   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 650     with_gnu_ld=yes
 651     withoptions="$withoptions --with-gnu-ld"
 652   fi
 653 fi
 654
 655 if [ x${enable_shared} = xyes ]; then
 656   case "${target}" in
 657     hppa*)              target_makefile_frag=config/mt-papic ;;
 658     i[345]86-*)         target_makefile_frag=config/mt-x86pic ;;
 659     *)                  target_makefile_frag=config/mt-${target_cpu}pic ;;
 660   esac
 661 fi
 662
 663 # post-target:
 664
 665 # Record target_configdirs and the configure arguments in Makefile.
 666 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
 667 targargs=`echo "${arguments}" | \
 668         sed -e 's/--norecursion//' \
 669             -e 's/--cache[a-z-]*=[^     ]*//' \
 670             -e 's/--ho[a-z-]*=[^        ]*//' \
 671             -e 's/--ta[a-z-]*=[^        ]*//'`
 672
 673 # Passing a --with-cross-host argument lets the target libraries know
 674 # whether they are being built with a cross-compiler or being built
 675 # native.  However, it would be better to use other mechanisms to make the
 676 # sorts of decisions they want to make on this basis.  Please consider
 677 # this option to be deprecated.  FIXME.
 678 if [ x${is_cross_compiler} = xyes ]; then
 679   targargs="--with-cross-host=${host_alias} ${targargs}"
 680 fi
 681
 682 targargs="--host=${target_alias} ${targargs}"
 683 sed -e "s:^TARGET_CONFIGDIRS[   ]*=.*$:TARGET_CONFIGDIRS = ${target_configdirs}:" \
 684     -e "s%^CONFIG_ARGUMENTS[    ]*=.*$%CONFIG_ARGUMENTS = ${targargs}%" \
 685     -e "s%^TARGET_SUBDIR[       ]*=.*$%TARGET_SUBDIR = ${target_subdir}%" \
 686        Makefile > Makefile.tem
 687 rm -f Makefile
 688 mv -f Makefile.tem Makefile
 689
 690 #
 691 # Local Variables:
 692 # fill-column: 131
 693 # End:
 694 #