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   m68k-*-linux*)          host_makefile_frag=config/mh-linux ;;
 101   m88k-dg-dgux*)          host_makefile_frag=config/mh-dgux ;;
 102   m88k-harris-cxux*)      host_makefile_frag=config/mh-cxux ;;
 103   m88k-motorola-sysv*)    host_makefile_frag=config/mh-delta88;;
 104   mips*-dec-ultrix*)      host_makefile_frag=config/mh-decstation ;;
 105   mips*-sgi-irix[56]*)    host_makefile_frag=config/mh-irix5 ;;
 106   mips*-sgi-irix4*)       host_makefile_frag=config/mh-irix4 ;;
 107   mips*-sgi-irix3*)       host_makefile_frag=config/mh-sysv ;;
 108   mips*-*-sysv4*)         host_makefile_frag=config/mh-sysv4 ;;
 109   mips*-*-sysv*)          host_makefile_frag=config/mh-riscos ;;
 110   i[345]86-ncr-sysv4.3)   host_makefile_frag=config/mh-ncrsvr43 ;;
 111   i[345]86-ncr-sysv4*)    host_makefile_frag=config/mh-ncr3000 ;;
 112   i[345]86-*-sco3.2v5*)   host_makefile_frag=config/mh-sysv ;;
 113   i[345]86-*-sco*)        host_makefile_frag=config/mh-sco ;;
 114   i[345]86-*-isc*)        host_makefile_frag=config/mh-sysv ;;
 115   i[345]86-*-linux*)      host_makefile_frag=config/mh-linux ;;
 116   i[345]86-*-solaris2*)   host_makefile_frag=config/mh-sysv4 ;;
 117   i[345]86-*-aix*)        host_makefile_frag=config/mh-aix386 ;;
 118   i[345]86-*-go32*)       host_makefile_frag=config/mh-go32 ;;
 119   vax-*-ultrix2*)         host_makefile_frag=config/mh-vaxult2 ;;
 120   *-*-solaris2*)          host_makefile_frag=config/mh-solaris ;;
 121   m68k-sun-sunos*)        host_makefile_frag=config/mh-sun3 ;;
 122   *-hp-hpux[78]*)         host_makefile_frag=config/mh-hpux8 ;;
 123   *-hp-hpux*)             host_makefile_frag=config/mh-hpux ;;
 124   *-*-hiux*)              host_makefile_frag=config/mh-hpux ;;
 125   rs6000-*-lynxos*)       host_makefile_frag=config/mh-lynxrs6k ;;
 126   *-*-lynxos*)            host_makefile_frag=config/mh-lynxos ;;
 127   *-*-sysv4*)             host_makefile_frag=config/mh-sysv4 ;;
 128   *-*-sysv*)              host_makefile_frag=config/mh-sysv ;;
 129 esac
 130 fi
 131
 132 # If we aren't going to be using gcc, see if we can extract a definition
 133 # of CC from the fragment.
 134 if [ -z "${CC}" -a "${build}" = "${host}" ]; then
 135   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 136   found=
 137   for dir in $PATH; do
 138     test -z "$dir" && dir=.
 139     if test -f $dir/gcc; then
 140       found=yes
 141       break
 142     fi
 143   done
 144   IFS="$save_ifs"
 145   if [ -z "${found}" -a -n "${host_makefile_frag}" -a -f "${srcdir}/${host_makefile_frag}" ]; then
 146     xx=`sed -n -e 's/^[         ]*CC[   ]*=[    ]*\(.*\)$/\1/p' < ${srcdir}/${host_makefile_frag}`
 147     if [ -n "${xx}" ] ; then
 148       CC=$xx
 149     fi
 150   fi
 151 fi
 152
 153 # We default to --with-shared on platforms where -fpic is meaningless.
 154 # Well, we don't yet, but we will.
 155 if false && [ "${host}" = "${target}" ] && [ x${enable_shared} = x ]; then
 156   case "${target}" in
 157     alpha-dec-osf*)     enable_shared=yes ;;
 158     mips-sgi-irix5*)    enable_shared=yes ;;
 159     *)                  enable_shared=no ;;
 160   esac
 161 fi
 162
 163 if [ x${enable_shared} = xyes ]; then
 164   waugh=
 165   case "${host}" in
 166     hppa*)              waugh=config/mh-papic ;;
 167     i[345]86-*)         waugh=config/mh-x86pic ;;
 168     sparc64-*)          waugh=config/mh-sparcpic ;;
 169     *)                  waugh=config/mh-${host_cpu}pic ;;
 170   esac
 171   if [ -f ${srcdir}/${waugh} ]; then
 172     if [ -n "${host_makefile_frag}" ] ; then
 173       cat ${srcdir}/${host_makefile_frag} > mh-frag
 174       cat ${srcdir}/${waugh} >> mh-frag
 175       host_makefile_frag=mh-frag
 176     else
 177       host_makefile_frag=${waugh}
 178     fi
 179   fi
 180 fi
 181
 182 # per-target:
 183
 184 case "${target}" in
 185   v810*)                target_makefile_frag=config/mt-v810 ;;
 186   i[345]86-*-netware*)  target_makefile_frag=config/mt-netware ;;
 187   powerpc-*-netware*)   target_makefile_frag=config/mt-netware ;;
 188 esac
 189
 190 skipdirs=
 191 gasdir=gas
 192 use_gnu_ld=
 193 use_gnu_as=
 194
 195 # some tools are so dependent upon X11 that if we're not building with X,
 196 # it's not even worth trying to configure, much less build, that tool.
 197
 198 case ${with_x} in
 199   yes | "")  # the default value for this tree is that X11 is available
 200         ;;
 201   no)
 202         skipdirs="${skipdirs} tk gash"
 203         ;;
 204   *)
 205         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 206         ;;
 207 esac
 208
 209 # Some tools are only suitable for building in a "native" situation.
 210 # Those are added when we have a host==target configuration.  For cross
 211 # toolchains, we add some directories that should only be useful in a
 212 # cross-compiler.
 213
 214 is_cross_compiler=
 215
 216 if [ x"${host}" = x"${target}" ] ; then
 217         # when doing a native toolchain, don't build the targets
 218         # that are in the 'cross only' list
 219         skipdirs="${skipdirs} ${cross_only}"
 220         is_cross_compiler=no
 221         target_subdir=.
 222 else
 223         # similarly, don't build the targets in the 'native only'
 224         # list when building a cross compiler
 225         skipdirs="${skipdirs} ${native_only}"
 226         is_cross_compiler=yes
 227         target_subdir=${target_alias}
 228         if [ ! -d ${target_subdir} ] ; then
 229             if mkdir ${target_subdir} ; then true
 230             else
 231                 echo "'*** could not make ${PWD=`pwd`}/${target_subdir}" 1>&2
 232                 exit 1
 233             fi
 234         fi
 235 fi
 236
 237 copy_dirs=
 238
 239 # Handle --with-headers=XXX.  The contents of the named directory are
 240 # copied to $(tooldir)/sys-include.
 241 if [ x"${with_headers}" != x ]; then
 242   if [ x${is_cross_compiler} = xno ]; then
 243     echo 1>&2 '***' --with-headers is only supported when cross compiling
 244     exit 1
 245   fi
 246   case "${exec_prefixoption}" in
 247   "") x=${prefix} ;;
 248   *) x=${exec_prefix} ;;
 249   esac
 250   copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
 251 fi
 252
 253 # Handle --with-libs=XXX.  Multiple directories are permitted.  The
 254 # contents are copied to $(tooldir)/lib.
 255 if [ x"${with_libs}" != x ]; then
 256   if [ x${is_cross_compiler} = xno ]; then
 257     echo 1>&2 '***' --with-libs is only supported when cross compiling
 258     exit 1
 259   fi
 260   # Copy the libraries in reverse order, so that files in the first named
 261   # library override files in subsequent libraries.
 262   case "${exec_prefixoption}" in
 263   "") x=${prefix} ;;
 264   *) x=${exec_prefix} ;;
 265   esac
 266   for l in ${with_libs}; do
 267     copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 268   done
 269 fi
 270
 271 # If both --with-headers and --with-libs are specified, default to
 272 # --without-newlib.
 273 if [ x"${with_headers}" != x ] && [ x"${with_libs}" != x ]; then
 274   if [ x"${with_newlib}" = x ]; then
 275     with_newlib=no
 276   fi
 277 fi
 278
 279 # Recognize --with-newlib/--without-newlib.
 280 if [ x${with_newlib} = xno ]; then
 281   skipdirs="${skipdirs} target-newlib"
 282 elif [ x${with_newlib} = xyes ]; then
 283   skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 284 fi
 285
 286 # Default to using --with-stabs for certain targets.
 287 if [ x${with_stabs} = x ]; then
 288   case "${target}" in
 289   mips*-*-* | alpha*-*-osf* | i[345]86*-*-sysv4* | i[345]86*-*-unixware*)
 290     with_stabs=yes;
 291     withoptions="${withoptions} --with-stabs"
 292     ;;
 293   esac
 294 fi
 295
 296 # Handle ${copy_dirs}
 297 set fnord ${copy_dirs}
 298 shift
 299 while [ $# != 0 ]; do
 300   if [ -f $2/COPIED ] && [ x"`cat $2/COPIED`" = x"$1" ]; then
 301     :
 302   else
 303     echo Copying $1 to $2
 304
 305     # Use the install script to create the directory and all required
 306     # parent directories.
 307     if [ -d $2 ]; then
 308       :
 309     else
 310       echo >config.temp
 311       ${srcdir}/install.sh -c -m 644 config.temp $2/COPIED
 312     fi
 313
 314     # Copy the directory, assuming we have tar.
 315     # FIXME: Should we use B in the second tar?  Not all systems support it.
 316     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 317
 318     # It is the responsibility of the user to correctly adjust all
 319     # symlinks.  If somebody can figure out how to handle them correctly
 320     # here, feel free to add the code.
 321
 322     echo $1 > $2/COPIED
 323   fi
 324   shift; shift
 325 done
 326
 327 # Configure extra directories which are host specific
 328
 329 case "${host}" in
 330         i[345]86-*-go32*)
 331           configdirs="$configdirs dosrel" ;;
 332 esac
 333
 334 # Remove more programs from consideration, based on the host or
 335 # target this usually means that a port of the program doesn't
 336 # exist yet.
 337
 338 noconfigdirs=""
 339
 340 case "${host}" in
 341   i[345]86-*-vsta)
 342     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 343     ;;
 344   i[345]86-*-go32)
 345     noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 346         ;;
 347   *-*-cygwin32)
 348      noconfigdirs="patch diff make tk tcl expect dejagnu cvs autoconf texinfo bison send-pr gprof rcs"
 349     ;;
 350   ppc*-*-pe)
 351      noconfigdirs="patch diff  make tk tcl expect dejagnu cvs autoconf texinfo bison send-pr gprof rcs"
 352     ;;
 353 esac
 354
 355
 356 case "${target}" in
 357   *-*-netware)
 358     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-librx target-newlib target-libiberty"
 359     ;;
 360   *-*-vxworks*)
 361     noconfigdirs="$noconfigdirs target-newlib"
 362     ;;
 363   alpha-dec-osf*)
 364     # ld works, but does not support shared libraries.  emacs doesn't
 365     # work.  newlib is not 64 bit ready.  I'm not sure about fileutils or grep.
 366     # gas doesn't generate exception information.
 367     noconfigdirs="$noconfigdirs gas ld emacs fileutils grep target-newlib"
 368     ;;
 369   alpha*-*-*)
 370     # newlib is not 64 bit ready
 371     noconfigdirs="$noconfigdirs target-newlib"
 372     ;;
 373 # start-sanitize-arc
 374   arc-*-*)
 375     ;;
 376 # end-sanitize-arc
 377   arm-*-pe*)
 378     ;;
 379   arm-*-riscix*)
 380     noconfigdirs="$noconfigdirs ld"
 381     ;;
 382   h8300*-*-* | \
 383   h8500-*-*)
 384     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx"
 385     ;;
 386   hppa*-*-*elf* | \
 387   hppa*-*-lites*)
 388     # Do configure ld/binutils/gas for this case.
 389     ;;
 390   hppa*-*-*)
 391     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 392     # cc is gcc, and on any system a user should be able to link cc to
 393     # whatever they want.  FIXME, emacs emacs19).
 394     case "${CC}" in
 395         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 396         *) ;;
 397     esac
 398     noconfigdirs="$noconfigdirs ld shellutils"
 399     ;;
 400   i[345]86-*-go32)
 401     # but don't build gdb
 402     noconfigdirs="$noconfigdirs gdb target-libg++ target-libstdc++ target-libio target-librx"
 403     ;;
 404   *-*-cygwin32)
 405
 406     # make/glob's configure uses some AC_TRY_RUN type tests
 407     target_configdirs="$target_configdirs target-winsup"
 408     noconfigdirs="$noconfigdirs tcl tk expect make"
 409     # always build newlib.
 410     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 411
 412     # Can't build gdb for cygwin32 if not native.
 413     case "${host}:${build}" in
 414       *-*-cygwin32 | *-*-cygwin32:*-*-cygwin32) ;; # keep gdb
 415       *) noconfigdirs="$noconfigdirs gdb"
 416     esac
 417
 418     ;;
 419   i[345]86-*-pe)
 420     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx"
 421     ;;
 422   i[345]86-*-sco3.2v5*)
 423     # The linker does not yet know about weak symbols in COFF,
 424     # and is not configured to handle mixed ELF and COFF.
 425     noconfigdirs="$noconfigdirs gprof ld"
 426     ;;
 427   i[345]86-*-sco*)
 428     noconfigdirs="$noconfigdirs gprof"
 429     ;;
 430   i[345]86-*-solaris2*)
 431     # The linker does static linking correctly, but the Solaris C library
 432     # has bugs such that some important functions won't work when statically
 433     # linked.  (See man pages for getpwuid, for example.)
 434     noconfigdirs="$noconfigdirs ld"
 435     ;;
 436   i[345]86-*-sysv4*)
 437     # The SYSV4 C compiler doesn't handle Emacs correctly
 438     case "${CC}" in
 439         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 440         *) ;;
 441     esac
 442     # but that's okay since emacs doesn't work anyway
 443     noconfigdirs="$noconfigdirs emacs emacs19"
 444     ;;
 445   powerpc-*-aix*)
 446     # copied from rs6000-*-* entry
 447     noconfigdirs="$noconfigdirs gprof cvs"
 448     ;;
 449   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 450     target_configdirs="$target_configdirs target-winsup"
 451     noconfigdirs="$noconfigdirs gdb tcl tk make expect"
 452     # always build newlib.
 453     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 454     ;;
 455   rs6000-*-lynxos*)
 456     # The CVS server code doesn't work on the RS/6000
 457     # Newlib makes problems for libg++ in crosses.
 458     noconfigdirs="$noconfigdirs target-newlib gprof cvs"
 459     ;;
 460   rs6000-*-*)
 461     noconfigdirs="$noconfigdirs gprof"
 462     ;;
 463   m68k-*-netbsd*)
 464     noconfigdirs="$noconfigdirs gdb"
 465     ;;
 466   m68k-apollo-*)
 467     noconfigdirs="$noconfigdirs ld binutils gprof"
 468     ;;
 469   mips*-*-irix5*)
 470     # The GNU linker does not support shared libraries.
 471     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 472     noconfigdirs="$noconfigdirs ld gprof emacs"
 473     ;;
 474   mips*-dec-bsd*)
 475     noconfigdirs="$noconfigdirs gprof"
 476     ;;
 477   mips*-*-bsd*)
 478     noconfigdirs="$noconfigdirs gprof"
 479     ;;
 480   mips*-*-*)
 481     noconfigdirs="$noconfigdirs gprof"
 482     ;;
 483   romp-*-*)
 484     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes"
 485     ;;
 486   sh-*-*)
 487     case "${host}" in
 488       i[345]86-*-vsta) ;; # don't add gprof back in
 489       i[345]86-*-go32) ;; # don't add gprof back in
 490       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 491     esac
 492     ;;
 493   sparc-*-sunos4*)
 494     if [ x${is_cross_compiler} != xno ] ; then
 495            noconfigdirs="$noconfigdirs gdb gdbtest target-newlib"
 496     else
 497            use_gnu_ld=no
 498     fi
 499     ;;
 500   sparclet-*-*)
 501     # Skip these until ready for them.
 502     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx"
 503     ;;
 504   v810-*-*)
 505     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libio target-libg++ target-libstdc++ opcodes"
 506     ;;
 507   vax-*-vms)
 508     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes"
 509     ;;
 510   vax-*-*)
 511     noconfigdirs="$noconfigdirs target-newlib"
 512     ;;
 513   *-*-lynxos*)
 514     # Newlib makes problems for libg++ in crosses.
 515     noconfigdirs="$noconfigdirs target-newlib"
 516     ;;
 517   *-*-macos* | \
 518   *-*-mpw*)
 519     # Macs want a resource compiler.
 520     configdirs="$configdirs grez"
 521     ;;
 522 esac
 523
 524 # targets that need a second pass
 525 case "${target}" in
 526   *-gm-magic*)
 527     noconfigdirs="$noconfigdirs libgloss"
 528     ;;
 529 esac
 530
 531 # If we are building a Canadian Cross, discard tools that can not be built
 532 # using a cross compiler.  FIXME: These tools should be fixed.
 533 if [ "${build}" != "${host}" ]; then
 534   noconfigdirs="$noconfigdirs expect dejagnu make texinfo diff"
 535 fi
 536
 537 # Make sure we don't let GNU ld be added if we didn't want it.
 538 if [ x$with_gnu_ld = xno ]; then
 539   use_gnu_ld=no
 540   noconfigdirs="$noconfigdirs ld"
 541 fi
 542
 543 # Make sure we don't let GNU as be added if we didn't want it.
 544 if [ x$with_gnu_as = xno ]; then
 545   use_gnu_as=no
 546   noconfigdirs="$noconfigdirs gas"
 547 fi
 548
 549 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
 550 # $target_configdirs.
 551 # If we have the source for $noconfigdirs entries, add them to $notsupp.
 552
 553 notsupp=""
 554 for dir in . $skipdirs $noconfigdirs ; do
 555   dirname=`echo $dir | sed -e s/target-//g`
 556   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 557     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 558     if [ -r $srcdir/$dirname/configure ] \
 559         || [ -r $srcdir/$dirname/configure.in ]; then
 560       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 561         true
 562       else
 563         notsupp="$notsupp $dir"
 564       fi
 565     fi
 566   fi
 567   if [ $dir != . ]  && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 568     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
 569     if [ -r $srcdir/$dirname/configure ] \
 570         || [ -r $srcdir/$dirname/configure.in ]; then
 571       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 572         true
 573       else
 574         notsupp="$notsupp $dir"
 575       fi
 576     fi
 577   fi
 578 done
 579
 580 # Sometimes the tools are distributed with libiberty but with no other
 581 # libraries.  In that case, we don't want to build target-libiberty.
 582 if [ -n "${target_configdirs}" ]; then
 583   others=
 584   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
 585     if [ "$i" != "libiberty" ]; then
 586       if [ -r $srcdir/$i/configure ] || [ -r $srcdir/$i/configure.in ]; then
 587         others=yes;
 588         break;
 589       fi
 590     fi
 591   done
 592   if [ -z "${others}" ]; then
 593     target_configdirs=
 594   fi
 595 fi
 596
 597 # Deconfigure all subdirectories, in case we are changing the
 598 # configuration from one where a subdirectory is supported to one where it
 599 # is not.
 600 if [ -z "${norecursion}" -a -n "${configdirs}" ]; then
 601   for i in `echo ${configdirs} | sed -e s/target-//g` ; do
 602     rm -f $i/Makefile
 603   done
 604 fi
 605 if [ -z "${norecursion}" -a -n "${target_configdirs}" ]; then
 606   for i in `echo ${target_configdirs} | sed -e s/target-//` ; do
 607     rm -f ${target_subdir}/$i/Makefile
 608   done
 609 fi
 610
 611 # Produce a warning message for the subdirs we can't configure.
 612 # This isn't especially interesting in the Cygnus tree, but in the individual
 613 # FSF releases, it's important to let people know when their machine isn't
 614 # supported by the one or two programs in a package.
 615
 616 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 617   # If $appdirs is non-empty, at least one of those directories must still
 618   # be configured, or we error out.  (E.g., if the gas release supports a
 619   # specified target in some subdirs but not the gas subdir, we shouldn't
 620   # pretend that all is well.)
 621   if [ -n "$appdirs" ]; then
 622     for dir in $appdirs ; do
 623       if [ -r $dir/Makefile.in ]; then
 624         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 625           appdirs=""
 626           break
 627         fi
 628         if echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 629           appdirs=""
 630           break
 631         fi
 632       fi
 633     done
 634     if [ -n "$appdirs" ]; then
 635       echo "*** This configuration is not supported by this package." 1>&2
 636       exit 1
 637     fi
 638   fi
 639   # Okay, some application will build, or we don't care to check.  Still
 640   # notify of subdirs not getting built.
 641   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 642   echo "    ${notsupp}" 1>&2
 643   echo "    (Any other directories should still work fine.)" 1>&2
 644 fi
 645
 646 # Set with_gnu_as and with_gnu_ld as appropriate.
 647 #
 648 # This is done by determining whether or not the appropriate directory
 649 # is available, and by checking whether or not specific configurations
 650 # have requested that this magic not happen.
 651 #
 652 # The command line options always override the explicit settings in
 653 # configure.in, and the settings in configure.in override this magic.
 654 #
 655 # If the default for a toolchain is to use GNU as and ld, and you don't
 656 # want to do that, then you should use the --without-gnu-as and
 657 # --without-gnu-ld options for the configure script.
 658
 659 if [ x${use_gnu_as} = x ] ; then
 660   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 661     with_gnu_as=yes
 662     withoptions="$withoptions --with-gnu-as"
 663   fi
 664 fi
 665
 666 if [ x${use_gnu_ld} = x ] ; then
 667   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 668     with_gnu_ld=yes
 669     withoptions="$withoptions --with-gnu-ld"
 670   fi
 671 fi
 672
 673 if [ x${enable_shared} = xyes ]; then
 674   case "${target}" in
 675     hppa*)              target_makefile_frag=config/mt-papic ;;
 676     i[345]86-*)         target_makefile_frag=config/mt-x86pic ;;
 677     *)                  target_makefile_frag=config/mt-${target_cpu}pic ;;
 678   esac
 679 fi
 680
 681 # post-target:
 682
 683 # Make sure that the compiler is able to generate an executable.  If it
 684 # can't, we are probably in trouble.  We don't care whether we can run the
 685 # executable--we might be using a cross compiler--we only care whether it
 686 # can be created.  At this point the main configure script has set CC.
 687 echo "int main () { return 0; }" > conftest.c
 688 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
 689 if [ $? = 0 ] && [ -s conftest ]; then
 690   :
 691 else
 692   echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
 693   echo 1>&2 "*** You must set the environment variable CC to a working compiler."
 694   rm -f conftest*
 695   exit 1
 696 fi
 697 rm -f conftest*
 698
 699 # The Solaris /usr/ucb/cc compiler does not appear to work.
 700 case "${host}" in
 701   sparc-sun-solaris2*)
 702       if [ "`/usr/bin/which ${CC-cc}`" = "/usr/ucb/cc" ] ; then
 703           could_use=
 704           [ -d /opt/SUNWspro/bin ] && could_use="/opt/SUNWspro/bin"
 705           if [ -d /opt/cygnus/bin ] ; then
 706               if [ "$could_use" = "" ] ; then
 707                   could_use="/opt/cygnus/bin"
 708               else
 709                   could_use="$could_use or /opt/cygnus/bin"
 710               fi
 711           fi
 712         if [ "$could_use" = "" ] ; then
 713             echo "Warning: compilation may fail because you're using"
 714             echo "/usr/ucb/cc.  You should change your PATH or CC "
 715             echo "variable and rerun configure."
 716         else
 717             echo "Warning: compilation may fail because you're using"
 718             echo "/usr/ucb/cc, when you should use the C compiler from"
 719             echo "$could_use.  You should change your"
 720             echo "PATH or CC variable and rerun configure."
 721         fi
 722       fi
 723   ;;
 724 esac
 725
 726 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
 727 # binutils tools will find libbfd.so.
 728 if [ "${enable_shared}" = "yes" ]; then
 729   sed -e 's/^SET_LIB_PATH[      ]*=.*$/SET_LIB_PATH = $(REALLY_SET_LIB_PATH)/' \
 730       Makefile > Makefile.tem
 731   rm -f Makefile
 732   mv -f Makefile.tem Makefile
 733
 734   case "${host}" in
 735   *-*-hpux*)
 736     sed -e 's/RPATH_ENVVAR[     ]*=.*$/RPATH_ENVVAR = SHLIB_PATH/' \
 737         Makefile > Makefile.tem
 738     rm -f Makefile
 739     mv -f Makefile.tem Makefile
 740     ;;
 741   esac
 742 fi
 743
 744 # Record target_configdirs and the configure arguments in Makefile.
 745 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
 746 targargs=`echo "${arguments}" | \
 747         sed -e 's/--norecursion//' \
 748             -e 's/--cache[a-z-]*=[^     ]*//' \
 749             -e 's/--ho[a-z-]*=[^        ]*//' \
 750             -e 's/--ta[a-z-]*=[^        ]*//'`
 751
 752 # Passing a --with-cross-host argument lets the target libraries know
 753 # whether they are being built with a cross-compiler or being built
 754 # native.  However, it would be better to use other mechanisms to make the
 755 # sorts of decisions they want to make on this basis.  Please consider
 756 # this option to be deprecated.  FIXME.
 757 if [ x${is_cross_compiler} = xyes ]; then
 758   targargs="--with-cross-host=${host_alias} ${targargs}"
 759 fi
 760
 761 targargs="--host=${target_alias} ${targargs}"
 762 sed -e "s:^TARGET_CONFIGDIRS[   ]*=.*$:TARGET_CONFIGDIRS = ${target_configdirs}:" \
 763     -e "s%^CONFIG_ARGUMENTS[    ]*=.*$%CONFIG_ARGUMENTS = ${targargs}%" \
 764     -e "s%^TARGET_SUBDIR[       ]*=.*$%TARGET_SUBDIR = ${target_subdir}%" \
 765        Makefile > Makefile.tem
 766 rm -f Makefile
 767 mv -f Makefile.tem Makefile
 768
 769 #
 770 # Local Variables:
 771 # fill-column: 131
 772 # End:
 773 #