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 guile perl"
  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 guile perl"
  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*-nec-sysv4*)       host_makefile_frag=config/mh-necv4 ;;
 106   mips*-sgi-irix[56]*)    host_makefile_frag=config/mh-irix5 ;;
 107   mips*-sgi-irix4*)       host_makefile_frag=config/mh-irix4 ;;
 108   mips*-sgi-irix3*)       host_makefile_frag=config/mh-sysv ;;
 109   mips*-*-sysv4*)         host_makefile_frag=config/mh-sysv4 ;;
 110   mips*-*-sysv*)          host_makefile_frag=config/mh-riscos ;;
 111   i[345]86-ncr-sysv4.3)   host_makefile_frag=config/mh-ncrsvr43 ;;
 112   i[345]86-ncr-sysv4*)    host_makefile_frag=config/mh-ncr3000 ;;
 113   i[345]86-*-sco3.2v5*)   host_makefile_frag=config/mh-sysv ;;
 114   i[345]86-*-sco*)        host_makefile_frag=config/mh-sco ;;
 115   i[345]86-*-isc*)        host_makefile_frag=config/mh-sysv ;;
 116   i[345]86-*-linux*)      host_makefile_frag=config/mh-linux ;;
 117   i[345]86-*-solaris2*)   host_makefile_frag=config/mh-sysv4 ;;
 118   i[345]86-*-aix*)        host_makefile_frag=config/mh-aix386 ;;
 119   i[345]86-*-go32*)       host_makefile_frag=config/mh-go32 ;;
 120   vax-*-ultrix2*)         host_makefile_frag=config/mh-vaxult2 ;;
 121   *-*-solaris2*)          host_makefile_frag=config/mh-solaris ;;
 122   m68k-sun-sunos*)        host_makefile_frag=config/mh-sun3 ;;
 123   *-hp-hpux[78]*)         host_makefile_frag=config/mh-hpux8 ;;
 124   *-hp-hpux*)             host_makefile_frag=config/mh-hpux ;;
 125   *-*-hiux*)              host_makefile_frag=config/mh-hpux ;;
 126   rs6000-*-lynxos*)       host_makefile_frag=config/mh-lynxrs6k ;;
 127   *-*-lynxos*)            host_makefile_frag=config/mh-lynxos ;;
 128   *-*-sysv4*)             host_makefile_frag=config/mh-sysv4 ;;
 129   *-*-sysv*)              host_makefile_frag=config/mh-sysv ;;
 130 esac
 131 fi
 132
 133 # If we aren't going to be using gcc, see if we can extract a definition
 134 # of CC from the fragment.
 135 if [ -z "${CC}" -a "${build}" = "${host}" ]; then
 136   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 137   found=
 138   for dir in $PATH; do
 139     test -z "$dir" && dir=.
 140     if test -f $dir/gcc; then
 141       found=yes
 142       break
 143     fi
 144   done
 145   IFS="$save_ifs"
 146   if [ -z "${found}" -a -n "${host_makefile_frag}" -a -f "${srcdir}/${host_makefile_frag}" ]; then
 147     xx=`sed -n -e 's/^[         ]*CC[   ]*=[    ]*\(.*\)$/\1/p' < ${srcdir}/${host_makefile_frag}`
 148     if [ -n "${xx}" ] ; then
 149       CC=$xx
 150     fi
 151   fi
 152 fi
 153
 154 # We default to --with-shared on platforms where -fpic is meaningless.
 155 # Well, we don't yet, but we will.
 156 if false && [ "${host}" = "${target}" ] && [ x${enable_shared} = x ]; then
 157   case "${target}" in
 158     alpha-dec-osf*)     enable_shared=yes ;;
 159     mips-sgi-irix5*)    enable_shared=yes ;;
 160     *)                  enable_shared=no ;;
 161   esac
 162 fi
 163
 164 if [ x${enable_shared} = xyes ]; then
 165   waugh=
 166   case "${host}" in
 167     hppa*)              waugh=config/mh-papic ;;
 168     i[345]86-*)         waugh=config/mh-x86pic ;;
 169     sparc64-*)          waugh=config/mh-sparcpic ;;
 170     *)                  waugh=config/mh-${host_cpu}pic ;;
 171   esac
 172   if [ -f ${srcdir}/${waugh} ]; then
 173     if [ -n "${host_makefile_frag}" ] ; then
 174       cat ${srcdir}/${host_makefile_frag} > mh-frag
 175       cat ${srcdir}/${waugh} >> mh-frag
 176       host_makefile_frag=mh-frag
 177     else
 178       host_makefile_frag=${waugh}
 179     fi
 180   fi
 181 fi
 182
 183 # per-target:
 184
 185 case "${target}" in
 186   v810*)                target_makefile_frag=config/mt-v810 ;;
 187   i[345]86-*-netware*)  target_makefile_frag=config/mt-netware ;;
 188   powerpc-*-netware*)   target_makefile_frag=config/mt-netware ;;
 189 esac
 190
 191 skipdirs=
 192 gasdir=gas
 193 use_gnu_ld=
 194 use_gnu_as=
 195
 196 # some tools are so dependent upon X11 that if we're not building with X,
 197 # it's not even worth trying to configure, much less build, that tool.
 198
 199 case ${with_x} in
 200   yes | "")  # the default value for this tree is that X11 is available
 201         ;;
 202   no)
 203         skipdirs="${skipdirs} tk gash"
 204         ;;
 205   *)
 206         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 207         ;;
 208 esac
 209
 210 # Some tools are only suitable for building in a "native" situation.
 211 # Those are added when we have a host==target configuration.  For cross
 212 # toolchains, we add some directories that should only be useful in a
 213 # cross-compiler.
 214
 215 is_cross_compiler=
 216
 217 if [ x"${host}" = x"${target}" ] ; then
 218         # when doing a native toolchain, don't build the targets
 219         # that are in the 'cross only' list
 220         skipdirs="${skipdirs} ${cross_only}"
 221         is_cross_compiler=no
 222         target_subdir=.
 223 else
 224         # similarly, don't build the targets in the 'native only'
 225         # list when building a cross compiler
 226         skipdirs="${skipdirs} ${native_only}"
 227         is_cross_compiler=yes
 228         target_subdir=${target_alias}
 229         if [ ! -d ${target_subdir} ] ; then
 230             if mkdir ${target_subdir} ; then true
 231             else
 232                 echo "'*** could not make ${PWD=`pwd`}/${target_subdir}" 1>&2
 233                 exit 1
 234             fi
 235         fi
 236 fi
 237
 238 copy_dirs=
 239
 240 # Handle --with-headers=XXX.  The contents of the named directory are
 241 # copied to $(tooldir)/sys-include.
 242 if [ x"${with_headers}" != x ]; then
 243   if [ x${is_cross_compiler} = xno ]; then
 244     echo 1>&2 '***' --with-headers is only supported when cross compiling
 245     exit 1
 246   fi
 247   case "${exec_prefixoption}" in
 248   "") x=${prefix} ;;
 249   *) x=${exec_prefix} ;;
 250   esac
 251   copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
 252 fi
 253
 254 # Handle --with-libs=XXX.  Multiple directories are permitted.  The
 255 # contents are copied to $(tooldir)/lib.
 256 if [ x"${with_libs}" != x ]; then
 257   if [ x${is_cross_compiler} = xno ]; then
 258     echo 1>&2 '***' --with-libs is only supported when cross compiling
 259     exit 1
 260   fi
 261   # Copy the libraries in reverse order, so that files in the first named
 262   # library override files in subsequent libraries.
 263   case "${exec_prefixoption}" in
 264   "") x=${prefix} ;;
 265   *) x=${exec_prefix} ;;
 266   esac
 267   for l in ${with_libs}; do
 268     copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 269   done
 270 fi
 271
 272 # If both --with-headers and --with-libs are specified, default to
 273 # --without-newlib.
 274 if [ x"${with_headers}" != x ] && [ x"${with_libs}" != x ]; then
 275   if [ x"${with_newlib}" = x ]; then
 276     with_newlib=no
 277   fi
 278 fi
 279
 280 # Recognize --with-newlib/--without-newlib.
 281 if [ x${with_newlib} = xno ]; then
 282   skipdirs="${skipdirs} target-newlib"
 283 elif [ x${with_newlib} = xyes ]; then
 284   skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 285 fi
 286
 287 # Default to using --with-stabs for certain targets.
 288 if [ x${with_stabs} = x ]; then
 289   case "${target}" in
 290   mips*-*-* | alpha*-*-osf* | i[345]86*-*-sysv4* | i[345]86*-*-unixware*)
 291     with_stabs=yes;
 292     withoptions="${withoptions} --with-stabs"
 293     ;;
 294   esac
 295 fi
 296
 297 # Handle ${copy_dirs}
 298 set fnord ${copy_dirs}
 299 shift
 300 while [ $# != 0 ]; do
 301   if [ -f $2/COPIED ] && [ x"`cat $2/COPIED`" = x"$1" ]; then
 302     :
 303   else
 304     echo Copying $1 to $2
 305
 306     # Use the install script to create the directory and all required
 307     # parent directories.
 308     if [ -d $2 ]; then
 309       :
 310     else
 311       echo >config.temp
 312       ${srcdir}/install.sh -c -m 644 config.temp $2/COPIED
 313     fi
 314
 315     # Copy the directory, assuming we have tar.
 316     # FIXME: Should we use B in the second tar?  Not all systems support it.
 317     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 318
 319     # It is the responsibility of the user to correctly adjust all
 320     # symlinks.  If somebody can figure out how to handle them correctly
 321     # here, feel free to add the code.
 322
 323     echo $1 > $2/COPIED
 324   fi
 325   shift; shift
 326 done
 327
 328 # Configure extra directories which are host specific
 329
 330 case "${host}" in
 331         i[345]86-*-go32*)
 332           configdirs="$configdirs dosrel" ;;
 333 esac
 334
 335 # Remove more programs from consideration, based on the host or
 336 # target this usually means that a port of the program doesn't
 337 # exist yet.
 338
 339 noconfigdirs=""
 340
 341 case "${host}" in
 342   i[345]86-*-vsta)
 343     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl"
 344     ;;
 345   i[345]86-*-go32)
 346     noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl"
 347         ;;
 348   *-*-cygwin32)
 349      noconfigdirs="patch diff make tk tcl expect dejagnu cvs autoconf texinfo bison send-pr gprof rcs guile perl"
 350     ;;
 351   ppc*-*-pe)
 352      noconfigdirs="patch diff  make tk tcl expect dejagnu cvs autoconf texinfo bison send-pr gprof rcs guile perl"
 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   *-*-vxworks*)
 362     noconfigdirs="$noconfigdirs target-newlib"
 363     ;;
 364   alpha-dec-osf*)
 365     # ld works, but does not support shared libraries.  emacs doesn't
 366     # work.  newlib is not 64 bit ready.  I'm not sure about fileutils or grep.
 367     # gas doesn't generate exception information.
 368     noconfigdirs="$noconfigdirs gas ld emacs fileutils grep target-newlib"
 369     ;;
 370   alpha*-*-*)
 371     # newlib is not 64 bit ready
 372     noconfigdirs="$noconfigdirs target-newlib"
 373     ;;
 374 # start-sanitize-arc
 375   arc-*-*)
 376     ;;
 377 # end-sanitize-arc
 378   arm-*-pe*)
 379     ;;
 380   arm-*-riscix*)
 381     noconfigdirs="$noconfigdirs ld"
 382     ;;
 383   h8300*-*-* | \
 384   h8500-*-*)
 385     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx"
 386     ;;
 387   hppa*-*-*elf* | \
 388   hppa*-*-lites*)
 389     # Do configure ld/binutils/gas for this case.
 390     ;;
 391   hppa*-*-*)
 392     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 393     # cc is gcc, and on any system a user should be able to link cc to
 394     # whatever they want.  FIXME, emacs emacs19).
 395     case "${CC}" in
 396         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 397         *) ;;
 398     esac
 399     noconfigdirs="$noconfigdirs ld shellutils"
 400     ;;
 401   i[345]86-*-go32)
 402     # but don't build gdb
 403     noconfigdirs="$noconfigdirs gdb target-libg++ target-libstdc++ target-libio target-librx"
 404     ;;
 405   *-*-cygwin32)
 406
 407     # make/glob's configure uses some AC_TRY_RUN type tests
 408     target_configdirs="$target_configdirs target-winsup"
 409     noconfigdirs="$noconfigdirs tcl tk expect make"
 410     # always build newlib.
 411     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 412
 413     # Can't build gdb for cygwin32 if not native.
 414     case "${host}:${build}" in
 415       *-*-cygwin32 | *-*-cygwin32:*-*-cygwin32) ;; # keep gdb
 416       *) noconfigdirs="$noconfigdirs gdb"
 417     esac
 418
 419     ;;
 420   i[345]86-*-pe)
 421     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx"
 422     ;;
 423   i[345]86-*-sco3.2v5*)
 424     # The linker does not yet know about weak symbols in COFF,
 425     # and is not configured to handle mixed ELF and COFF.
 426     noconfigdirs="$noconfigdirs gprof ld"
 427     ;;
 428   i[345]86-*-sco*)
 429     noconfigdirs="$noconfigdirs gprof"
 430     ;;
 431   i[345]86-*-solaris2*)
 432     # The linker does static linking correctly, but the Solaris C library
 433     # has bugs such that some important functions won't work when statically
 434     # linked.  (See man pages for getpwuid, for example.)
 435     noconfigdirs="$noconfigdirs ld"
 436     ;;
 437   i[345]86-*-sysv4*)
 438     # The SYSV4 C compiler doesn't handle Emacs correctly
 439     case "${CC}" in
 440         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 441         *) ;;
 442     esac
 443     # but that's okay since emacs doesn't work anyway
 444     noconfigdirs="$noconfigdirs emacs emacs19"
 445     ;;
 446   powerpc-*-aix*)
 447     # copied from rs6000-*-* entry
 448     noconfigdirs="$noconfigdirs gprof cvs"
 449     ;;
 450   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 451     target_configdirs="$target_configdirs target-winsup"
 452     noconfigdirs="$noconfigdirs gdb tcl tk make expect"
 453     # always build newlib.
 454     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 455     ;;
 456   rs6000-*-lynxos*)
 457     # The CVS server code doesn't work on the RS/6000
 458     # Newlib makes problems for libg++ in crosses.
 459     noconfigdirs="$noconfigdirs target-newlib gprof cvs"
 460     ;;
 461   rs6000-*-*)
 462     noconfigdirs="$noconfigdirs gprof"
 463     ;;
 464   m68k-apollo-*)
 465     noconfigdirs="$noconfigdirs ld binutils gprof"
 466     ;;
 467   mips*-*-irix5*)
 468     # The GNU linker does not support shared libraries.
 469     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 470     noconfigdirs="$noconfigdirs ld gprof emacs"
 471     ;;
 472   mips*-dec-bsd*)
 473     noconfigdirs="$noconfigdirs gprof"
 474     ;;
 475   mips*-*-bsd*)
 476     noconfigdirs="$noconfigdirs gprof"
 477     ;;
 478   mips*-*-*)
 479     noconfigdirs="$noconfigdirs gprof"
 480     ;;
 481   romp-*-*)
 482     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes"
 483     ;;
 484   sh-*-*)
 485     case "${host}" in
 486       i[345]86-*-vsta) ;; # don't add gprof back in
 487       i[345]86-*-go32) ;; # don't add gprof back in
 488       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 489     esac
 490     ;;
 491   sparc-*-sunos4*)
 492     if [ x${is_cross_compiler} != xno ] ; then
 493            noconfigdirs="$noconfigdirs gdb gdbtest target-newlib"
 494     else
 495            use_gnu_ld=no
 496     fi
 497     ;;
 498   v810-*-*)
 499     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libio target-libg++ target-libstdc++ opcodes"
 500     ;;
 501   vax-*-vms)
 502     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes"
 503     ;;
 504   vax-*-*)
 505     noconfigdirs="$noconfigdirs target-newlib"
 506     ;;
 507   *-*-lynxos*)
 508     # Newlib makes problems for libg++ in crosses.
 509     noconfigdirs="$noconfigdirs target-newlib"
 510     ;;
 511   *-*-macos* | \
 512   *-*-mpw*)
 513     # Macs want a resource compiler.
 514     configdirs="$configdirs grez"
 515     ;;
 516 esac
 517
 518 # targets that need a second pass
 519 case "${target}" in
 520   *-gm-magic*)
 521     noconfigdirs="$noconfigdirs libgloss"
 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="$noconfigdirs expect dejagnu make texinfo diff"
 529 fi
 530
 531 # Make sure we don't let GNU ld be added if we didn't want it.
 532 if [ x$with_gnu_ld = xno ]; then
 533   use_gnu_ld=no
 534   noconfigdirs="$noconfigdirs ld"
 535 fi
 536
 537 # Make sure we don't let GNU as be added if we didn't want it.
 538 if [ x$with_gnu_as = xno ]; then
 539   use_gnu_as=no
 540   noconfigdirs="$noconfigdirs gas"
 541 fi
 542
 543 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
 544 # $target_configdirs.
 545 # If we have the source for $noconfigdirs entries, add them to $notsupp.
 546
 547 notsupp=""
 548 for dir in . $skipdirs $noconfigdirs ; do
 549   dirname=`echo $dir | sed -e s/target-//g`
 550   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 551     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 552     if [ -r $srcdir/$dirname/configure ] \
 553         || [ -r $srcdir/$dirname/configure.in ]; then
 554       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 555         true
 556       else
 557         notsupp="$notsupp $dir"
 558       fi
 559     fi
 560   fi
 561   if [ $dir != . ]  && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 562     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
 563     if [ -r $srcdir/$dirname/configure ] \
 564         || [ -r $srcdir/$dirname/configure.in ]; then
 565       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 566         true
 567       else
 568         notsupp="$notsupp $dir"
 569       fi
 570     fi
 571   fi
 572 done
 573
 574 # Sometimes the tools are distributed with libiberty but with no other
 575 # libraries.  In that case, we don't want to build target-libiberty.
 576 if [ -n "${target_configdirs}" ]; then
 577   others=
 578   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
 579     if [ "$i" != "libiberty" ]; then
 580       if [ -r $srcdir/$i/configure ] || [ -r $srcdir/$i/configure.in ]; then
 581         others=yes;
 582         break;
 583       fi
 584     fi
 585   done
 586   if [ -z "${others}" ]; then
 587     target_configdirs=
 588   fi
 589 fi
 590
 591 # Deconfigure all subdirectories, in case we are changing the
 592 # configuration from one where a subdirectory is supported to one where it
 593 # is not.
 594 if [ -z "${norecursion}" -a -n "${configdirs}" ]; then
 595   for i in `echo ${configdirs} | sed -e s/target-//g` ; do
 596     rm -f $i/Makefile
 597   done
 598 fi
 599 if [ -z "${norecursion}" -a -n "${target_configdirs}" ]; then
 600   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
 601     rm -f ${target_subdir}/$i/Makefile
 602   done
 603 fi
 604
 605 # Produce a warning message for the subdirs we can't configure.
 606 # This isn't especially interesting in the Cygnus tree, but in the individual
 607 # FSF releases, it's important to let people know when their machine isn't
 608 # supported by the one or two programs in a package.
 609
 610 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 611   # If $appdirs is non-empty, at least one of those directories must still
 612   # be configured, or we error out.  (E.g., if the gas release supports a
 613   # specified target in some subdirs but not the gas subdir, we shouldn't
 614   # pretend that all is well.)
 615   if [ -n "$appdirs" ]; then
 616     for dir in $appdirs ; do
 617       if [ -r $dir/Makefile.in ]; then
 618         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 619           appdirs=""
 620           break
 621         fi
 622         if echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 623           appdirs=""
 624           break
 625         fi
 626       fi
 627     done
 628     if [ -n "$appdirs" ]; then
 629       echo "*** This configuration is not supported by this package." 1>&2
 630       exit 1
 631     fi
 632   fi
 633   # Okay, some application will build, or we don't care to check.  Still
 634   # notify of subdirs not getting built.
 635   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 636   echo "    ${notsupp}" 1>&2
 637   echo "    (Any other directories should still work fine.)" 1>&2
 638 fi
 639
 640 # Set with_gnu_as and with_gnu_ld as appropriate.
 641 #
 642 # This is done by determining whether or not the appropriate directory
 643 # is available, and by checking whether or not specific configurations
 644 # have requested that this magic not happen.
 645 #
 646 # The command line options always override the explicit settings in
 647 # configure.in, and the settings in configure.in override this magic.
 648 #
 649 # If the default for a toolchain is to use GNU as and ld, and you don't
 650 # want to do that, then you should use the --without-gnu-as and
 651 # --without-gnu-ld options for the configure script.
 652
 653 if [ x${use_gnu_as} = x ] ; then
 654   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 655     with_gnu_as=yes
 656     withoptions="$withoptions --with-gnu-as"
 657   fi
 658 fi
 659
 660 if [ x${use_gnu_ld} = x ] ; then
 661   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 662     with_gnu_ld=yes
 663     withoptions="$withoptions --with-gnu-ld"
 664   fi
 665 fi
 666
 667 if [ x${enable_shared} = xyes ]; then
 668   case "${target}" in
 669     hppa*)              target_makefile_frag=config/mt-papic ;;
 670     i[345]86-*)         target_makefile_frag=config/mt-x86pic ;;
 671     *)                  target_makefile_frag=config/mt-${target_cpu}pic ;;
 672   esac
 673 fi
 674
 675 # post-target:
 676
 677 # Make sure that the compiler is able to generate an executable.  If it
 678 # can't, we are probably in trouble.  We don't care whether we can run the
 679 # executable--we might be using a cross compiler--we only care whether it
 680 # can be created.  At this point the main configure script has set CC.
 681 echo "int main () { return 0; }" > conftest.c
 682 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
 683 if [ $? = 0 ] && [ -s conftest ]; then
 684   :
 685 else
 686   echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
 687   echo 1>&2 "*** You must set the environment variable CC to a working compiler."
 688   rm -f conftest*
 689   exit 1
 690 fi
 691 rm -f conftest*
 692
 693 # The Solaris /usr/ucb/cc compiler does not appear to work.
 694 case "${host}" in
 695   sparc-sun-solaris2*)
 696       if [ "`/usr/bin/which ${CC-cc}`" = "/usr/ucb/cc" ] ; then
 697           could_use=
 698           [ -d /opt/SUNWspro/bin ] && could_use="/opt/SUNWspro/bin"
 699           if [ -d /opt/cygnus/bin ] ; then
 700               if [ "$could_use" = "" ] ; then
 701                   could_use="/opt/cygnus/bin"
 702               else
 703                   could_use="$could_use or /opt/cygnus/bin"
 704               fi
 705           fi
 706         if [ "$could_use" = "" ] ; then
 707             echo "Warning: compilation may fail because you're using"
 708             echo "/usr/ucb/cc.  You should change your PATH or CC "
 709             echo "variable and rerun configure."
 710         else
 711             echo "Warning: compilation may fail because you're using"
 712             echo "/usr/ucb/cc, when you should use the C compiler from"
 713             echo "$could_use.  You should change your"
 714             echo "PATH or CC variable and rerun configure."
 715         fi
 716       fi
 717   ;;
 718 esac
 719
 720 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
 721 # binutils tools will find libbfd.so.
 722 if [ "${enable_shared}" = "yes" ]; then
 723   sed -e 's/^SET_LIB_PATH[      ]*=.*$/SET_LIB_PATH = $(REALLY_SET_LIB_PATH)/' \
 724       Makefile > Makefile.tem
 725   rm -f Makefile
 726   mv -f Makefile.tem Makefile
 727
 728   case "${host}" in
 729   *-*-hpux*)
 730     sed -e 's/RPATH_ENVVAR[     ]*=.*$/RPATH_ENVVAR = SHLIB_PATH/' \
 731         Makefile > Makefile.tem
 732     rm -f Makefile
 733     mv -f Makefile.tem Makefile
 734     ;;
 735   esac
 736 fi
 737
 738 # Record target_configdirs and the configure arguments in Makefile.
 739 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
 740 targargs=`echo "${arguments}" | \
 741         sed -e 's/--norecursion//' \
 742             -e 's/--cache[a-z-]*=[^     ]*//' \
 743             -e 's/--ho[a-z-]*=[^        ]*//' \
 744             -e 's/--ta[a-z-]*=[^        ]*//'`
 745
 746 # Passing a --with-cross-host argument lets the target libraries know
 747 # whether they are being built with a cross-compiler or being built
 748 # native.  However, it would be better to use other mechanisms to make the
 749 # sorts of decisions they want to make on this basis.  Please consider
 750 # this option to be deprecated.  FIXME.
 751 if [ x${is_cross_compiler} = xyes ]; then
 752   targargs="--with-cross-host=${host_alias} ${targargs}"
 753 fi
 754
 755 targargs="--host=${target_alias} ${targargs}"
 756 sed -e "s:^TARGET_CONFIGDIRS[   ]*=.*$:TARGET_CONFIGDIRS = ${target_configdirs}:" \
 757     -e "s%^CONFIG_ARGUMENTS[    ]*=.*$%CONFIG_ARGUMENTS = ${targargs}%" \
 758     -e "s%^TARGET_SUBDIR[       ]*=.*$%TARGET_SUBDIR = ${target_subdir}%" \
 759        Makefile > Makefile.tem
 760 rm -f Makefile
 761 mv -f Makefile.tem Makefile
 762
 763 #
 764 # Local Variables:
 765 # fill-column: 131
 766 # End:
 767 #