configure.in

   1 #! /bin/bash
   2 ##############################################################################
   3
   4 ## This file is a shell script fragment that supplies the information
   5 ## necessary to tailor a template configure script into the configure
   6 ## script appropriate for this directory.  For more information, check
   7 ## any existing configure script.
   8
   9 ## Be warned, there are two types of configure.in files.  There are those
  10 ## used by Autoconf, which are macros which are expanded into a configure
  11 ## script by autoconf.  The other sort, of which this is one, is executed
  12 ## by Cygnus configure.
  13
  14 ## For more information on these two systems, check out the documentation
  15 ## for 'Autoconf' (autoconf.texi) and 'Configure' (configure.texi).
  16
  17 #   Copyright (C) 1992-99, 2000, 2001 Free Software Foundation, Inc.
  18 #
  19 # This file is free software; you can redistribute it and/or modify it
  20 # under the terms of the GNU General Public License as published by
  21 # the Free Software Foundation; either version 2 of the License, or
  22 # (at your option) any later version.
  23 #
  24 # This program is distributed in the hope that it will be useful, but
  25 # WITHOUT ANY WARRANTY; without even the implied warranty of
  26 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  27 # General Public License for more details.
  28 #
  29 # You should have received a copy of the GNU General Public License
  30 # along with this program; if not, write to the Free Software
  31 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  32
  33 ##############################################################################
  34
  35 ### To add a new directory to the tree, first choose whether it is a target
  36 ### or a host dependent tool.  Then put it into the appropriate list
  37 ### (library or tools, host or target), doing a dependency sort.  For
  38 ### example, gdb requires that byacc (or bison) be built first, so it is in
  39 ### the ${host_tools} list after byacc and bison.
  40
  41
  42 # these libraries are used by various programs built for the host environment
  43 #
  44 host_libs="intl mmalloc libiberty opcodes bfd readline gash db tcl tk tcl8.1 tk8.1 tclX itcl tix libgui"
  45
  46 if [ "${enable_gdbgui}" = "yes" ] ; then
  47         host_libs="${host_libs} libgui"
  48 fi
  49
  50 # Set up configure/Makefile variables if libstdc++-v3 is to be built.
  51 if [ "${enable_libstdcxx_v3}" = "yes" ] && test -d $srcdir/libstdc++-v3; then
  52         libstdcxx_version="target-libstdc++-v3"
  53         # Don't use libstdc++-v3's flags to configure/build itself.
  54         libstdcxx_flags='`case $$dir in libstdc++-v3) ;; *) cat $$r/$(TARGET_SUBDIR)/libstdc++-v3/src/libstdc++.INC 2>/dev/null || : ;; esac` -L$$r/$(TARGET_SUBDIR)/libstd++-v3/src -L$$r/$(TARGET_SUBDIR)/libstd++-v3/src/.libs'
  55 else
  56         libstdcxx_version="target-libio target-libstdc++"
  57         libstdcxx_flags='-isystem $$s/libstdc++ -isystem $$s/libstdc++/std -isystem $$s/libstdc++/stl -isystem $$s/libio/ -isystem $$s/libio/stdio -L$$r/$(TARGET_SUBDIR)/libstdc++'
  58 fi
  59
  60 # these tools are built for the host environment
  61 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
  62 # know that we are building the simulator.
  63 host_tools="texinfo byacc flex bison binutils ld gas gcc cgen sid sim gdb make patch prms send-pr gprof gdbtest tgas etc expect dejagnu ash bash bzip2 m4 autoconf automake libtool ispell grep diff rcs cvssrc fileutils shellutils time textutils wdiff find emacs emacs19 uudecode hello tar gzip indent recode release sed utils guile perl apache inet gawk findutils snavigator libtool gettext zip"
  64
  65 # these libraries are built for the target environment, and are built after
  66 # the host libraries and the host tools (which may be a cross compiler)
  67 #
  68 target_libs="target-libiberty \
  69                 target-libgloss \
  70                 target-newlib \
  71                 ${libstdcxx_version} \
  72                 target-libf2c \
  73                 target-libchill \
  74                 target-libffi \
  75                 target-libjava \
  76                 target-zlib \
  77                 target-boehm-gc \
  78                 target-qthreads \
  79                 target-libobjc"
  80
  81 # these tools are built using the target libs, and are intended to run only
  82 # in the target environment
  83 #
  84 # note: any program that *uses* libraries that are in the "target_libs"
  85 # list belongs in this list.  those programs are also very likely
  86 # candidates for the "native_only" list which follows
  87 #
  88 target_tools="target-examples target-groff target-gperf"
  89
  90 ################################################################################
  91
  92 ## These two lists are of directories that are to be removed from the
  93 ## ${configdirs} list for either cross-compilations or for native-
  94 ## compilations.  For example, it doesn't make that much sense to
  95 ## cross-compile Emacs, nor is it terribly useful to compile target-libiberty in
  96 ## a native environment.
  97
  98 # directories to be built in the native environment only
  99 #
 100 # This must be a single line because of the way it is searched by grep in
 101 # the code below.
 102 native_only="autoconf automake libtool cvssrc emacs emacs19 fileutils find gawk gettext grep gzip hello indent ispell m4 rcs recode sed shellutils tar textutils gash uudecode wdiff gprof target-groff guile perl apache inet time ash bash bzip2 prms snavigator gnuserv target-gperf"
 103
 104 # directories to be built in a cross environment only
 105 #
 106 cross_only="target-libgloss target-newlib target-cygmon target-opcodes target-libstub"
 107
 108 ## All tools belong in one of the four categories, and are assigned above
 109 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 110 ## is important because configure will choke if they ever get through.
 111 ## ${configdirs} is directories we build using the host tools.
 112 ## ${target_configdirs} is directories we build using the target tools.
 113 #
 114 configdirs=`echo ${host_libs} ${host_tools}`
 115 target_configdirs=`echo ${target_libs} ${target_tools}`
 116
 117 ################################################################################
 118
 119 srctrigger=move-if-change
 120 srcname="gnu development package"
 121
 122 # This gets set non-empty for some net releases of packages.
 123 appdirs=""
 124
 125 # per-host:
 126
 127 # Work in distributions that contain no compiler tools, like Autoconf.
 128 if [ -d ${srcdir}/config ]; then
 129 case "${host}" in
 130   m68k-hp-hpux*)
 131     host_makefile_frag="${host_makefile_frag} config/mh-hp300"
 132     ;;
 133   m68k-apollo-sysv*)
 134     host_makefile_frag="${host_makefile_frag} config/mh-apollo68"
 135     ;;
 136   m68k-apollo-bsd*)
 137     host_makefile_frag="${host_makefile_frag} config/mh-a68bsd"
 138     ;;
 139   m88k-dg-dgux*)
 140     host_makefile_frag="${host_makefile_frag} config/mh-dgux"
 141     ;;
 142   m88k-harris-cxux*)
 143     host_makefile_frag="${host_makefile_frag} config/mh-cxux"
 144     ;;
 145   m88k-motorola-sysv*)
 146     host_makefile_frag="${host_makefile_frag} config/mh-delta88"
 147     ;;
 148   mips*-dec-ultrix*)
 149     host_makefile_frag="${host_makefile_frag} config/mh-decstation"
 150     ;;
 151   mips*-nec-sysv4*)
 152     host_makefile_frag="${host_makefile_frag} config/mh-necv4"
 153     ;;
 154   mips*-sgi-irix6*)
 155     host_makefile_frag="${host_makefile_frag} config/mh-irix6"
 156     ;;
 157   mips*-sgi-irix5*)
 158     host_makefile_frag="${host_makefile_frag} config/mh-irix5"
 159     ;;
 160   mips*-sgi-irix4*)
 161     host_makefile_frag="${host_makefile_frag} config/mh-irix4"
 162     ;;
 163   mips*-sgi-irix3*)
 164     host_makefile_frag="${host_makefile_frag} config/mh-sysv"
 165     ;;
 166   mips*-*-sysv4*)
 167     host_makefile_frag="${host_makefile_frag} config/mh-sysv4"
 168     ;;
 169   mips*-*-sysv*)
 170     host_makefile_frag="${host_makefile_frag} config/mh-riscos"
 171     ;;
 172   i370-ibm-opened*)
 173     host_makefile_frag="${host_makefile_frag} config/mh-openedition"
 174     ;;
 175   i[3456]86-*-sysv5*)
 176     host_makefile_frag="${host_makefile_frag} config/mh-sysv5"
 177     ;;
 178   i[3456]86-*-dgux*)
 179     host_makefile_frag="${host_makefile_frag} config/mh-dgux386"
 180     ;;
 181   i[3456]86-ncr-sysv4.3*)
 182     host_makefile_frag="${host_makefile_frag} config/mh-ncrsvr43"
 183     ;;
 184   i[3456]86-ncr-sysv4*)
 185     host_makefile_frag="${host_makefile_frag} config/mh-ncr3000"
 186     ;;
 187   i[3456]86-*-sco3.2v5*)
 188     host_makefile_frag="${host_makefile_frag} config/mh-sysv"
 189     ;;
 190   i[3456]86-*-sco*)
 191     host_makefile_frag="${host_makefile_frag} config/mh-sco"
 192     ;;
 193   i[3456]86-*-udk*)
 194     host_makefile_frag="${host_makefile_frag} config/mh-sysv5"
 195     ;;
 196   i[3456]86-*-isc*)
 197     host_makefile_frag="${host_makefile_frag} config/mh-sysv"
 198     ;;
 199   i[3456]86-*-solaris2*)
 200     host_makefile_frag="${host_makefile_frag} config/mh-sysv4"
 201     ;;
 202   i[3456]86-*-aix*)
 203     host_makefile_frag="${host_makefile_frag} config/mh-aix386"
 204     ;;
 205   i[3456]86-*-msdosdjgpp*)
 206     host_makefile_frag="${host_makefile_frag} config/mh-djgpp"
 207     ;;
 208   *-cygwin*)
 209     host_makefile_frag="${host_makefile_frag} config/mh-cygwin"
 210     ;;
 211   *-mingw32*)
 212     host_makefile_frag="${host_makefile_frag} config/mh-mingw32"
 213     ;;
 214   *-interix*)
 215     host_makefile_frag="${host_makefile_frag} config/mh-interix"
 216     ;;
 217   *-windows*)
 218     host_makefile_frag="${host_makefile_frag} config/mh-windows"
 219     ;;
 220   vax-*-ultrix2*)
 221     host_makefile_frag="${host_makefile_frag} config/mh-vaxult2"
 222     ;;
 223   *-*-solaris2*)
 224     host_makefile_frag="${host_makefile_frag} config/mh-solaris"
 225     ;;
 226   m68k-sun-sunos*)
 227     host_makefile_frag="${host_makefile_frag} config/mh-sun3"
 228     ;;
 229   *-hp-hpux[78]*)
 230     host_makefile_frag="${host_makefile_frag} config/mh-hpux8"
 231     ;;
 232   *-hp-hpux*)
 233     host_makefile_frag="${host_makefile_frag} config/mh-hpux"
 234     ;;
 235   *-*-hiux*)
 236     host_makefile_frag="${host_makefile_frag} config/mh-hpux"
 237     ;;
 238   rs6000-*-lynxos*)
 239     host_makefile_frag="${host_makefile_frag} config/mh-lynxrs6k"
 240     ;;
 241   *-*-lynxos*)
 242     host_makefile_frag="${host_makefile_frag} config/mh-lynxos"
 243     ;;
 244   *-*-sysv4*)
 245     host_makefile_frag="${host_makefile_frag} config/mh-sysv4"
 246     ;;
 247   *-*-sysv*)
 248     host_makefile_frag="${host_makefile_frag} config/mh-sysv"
 249     ;;
 250 esac
 251 fi
 252
 253 # If we aren't going to be using gcc, see if we can extract a definition
 254 # of CC from the fragment.
 255 if [ -z "${CC}" ] && [ "${build}" = "${host}" ]; then
 256   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 257   found=
 258   for dir in $PATH; do
 259     test -z "$dir" && dir=.
 260     if test -f $dir/gcc; then
 261       found=yes
 262       break
 263     fi
 264   done
 265   IFS="$save_ifs"
 266   if [ -z "${found}" ] && [ -n "${host_makefile_frag}" ] && [ -f "${srcdir}/${host_makefile_frag}" ]; then
 267     xx=`sed -n -e 's/^[         ]*CC[   ]*=[    ]*\(.*\)$/\1/p' < ${srcdir}/${host_makefile_frag}`
 268     if [ -n "${xx}" ] ; then
 269       CC=$xx
 270     fi
 271   fi
 272 fi
 273
 274 # We default to --with-shared on platforms where -fpic is meaningless.
 275 # Well, we don't yet, but we will.
 276 if false && [ "${host}" = "${target}" ] && [ x${enable_shared} = x ]; then
 277   case "${target}" in
 278     alpha*-dec-osf*)    enable_shared=yes ;;
 279     alpha*-*-linux*)    enable_shared=yes ;;
 280     mips-sgi-irix5*)    enable_shared=yes ;;
 281     *)                  enable_shared=no ;;
 282   esac
 283 fi
 284
 285 case "${enable_shared}" in
 286   yes) shared=yes ;;
 287   no) shared=no ;;
 288   "") shared=no ;;
 289   *) shared=yes ;;
 290 esac
 291
 292 if [ x${shared} = xyes ]; then
 293   case "${host}" in
 294     alpha*-*-linux*)
 295       host_makefile_frag="${host_makefile_frag} config/mh-elfalphapic"
 296       ;;
 297     arm*-*-*)
 298       host_makefile_frag="${host_makefile_frag} config/mh-armpic"
 299       ;;
 300     hppa*-*-*)
 301       host_makefile_frag="${host_makefile_frag} config/mh-papic"
 302       ;;
 303     i[3456]86-*-cygwin*)
 304       # We don't want -fPIC on Cygwin.
 305       ;;
 306     i[3456]86-*-*)
 307       host_makefile_frag="${host_makefile_frag} config/mh-x86pic"
 308       ;;
 309     i370-*-*)
 310       host_makefile_frag="${host_makefile_frag} config/mh-i370pic"
 311       ;;
 312     ia64-*-*)
 313       host_makefile_frag="${host_makefile_frag} config/mh-ia64pic"
 314       ;;
 315     sparc64-*-*)
 316       host_makefile_frag="${host_makefile_frag} config/mh-sparcpic"
 317       ;;
 318     powerpc*-*-aix*)
 319       # We don't want -fPIC on AIX.
 320       ;;
 321     powerpc*-*-*)
 322       host_makefile_frag="${host_makefile_frag} config/mh-ppcpic"
 323       ;;
 324     s390-* | s390x-*)
 325       host_makefile_frag="${host_makefile_frag} config/mh-s390pic"
 326       ;;
 327     *-*-*)
 328       if test -f ${srcdir}/config/mh-${host_cpu}pic; then
 329         host_makefile_frag="${host_makefile_frag} config/mh-${host_cpu}pic"
 330       fi
 331       ;;
 332   esac
 333 fi
 334
 335 rm -f mh-frag
 336 if [ -n "${host_makefile_frag}" ] ; then
 337   for f in ${host_makefile_frag}
 338   do
 339     cat ${srcdir}/$f >> mh-frag
 340   done
 341   host_makefile_frag=mh-frag
 342 fi
 343
 344 # per-target:
 345
 346 case "${target}" in
 347   v810*)
 348     target_makefile_frag="${target_makefile_frag} config/mt-v810"
 349     ;;
 350   i[3456]86-*-netware*)
 351     target_makefile_frag="${target_makefile_frag} config/mt-netware"
 352     ;;
 353   powerpc-*-netware*)
 354     target_makefile_frag="${target_makefile_frag} config/mt-netware"
 355     ;;
 356   *-*-linux-gnu*)
 357     target_makefile_frag="${target_makefile_frag} config/mt-linux"
 358     ;;
 359   *-*-aix4.[3456789]* | *-*-aix[56789].*)
 360     target_makefile_frag="${target_makefile_frag} config/mt-aix43"
 361     ;;
 362   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
 363     target_makefile_frag="${target_makefile_frag} config/mt-wince"
 364     ;;
 365 esac
 366
 367 # If --enable-target-optspace always use -Os instead of -O2 to build
 368 # the target libraries, similarly if it is not specified, use -Os
 369 # on selected platforms.
 370 case "${enable_target_optspace}:${target}" in
 371   yes:*)
 372     target_makefile_frag="${target_makefile_frag} config/mt-ospace"
 373     ;;
 374   :d30v-*)
 375     target_makefile_frag="${target_makefile_frag} config/mt-d30v"
 376     ;;
 377   :m32r-* | :d10v-* | :fr30-*)
 378     target_makefile_frag="${target_makefile_frag} config/mt-ospace"
 379     ;;
 380   no:* | :*)
 381     ;;
 382   *)
 383     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
 384     ;;
 385 esac
 386
 387 skipdirs=
 388 gasdir=gas
 389 use_gnu_ld=
 390 use_gnu_as=
 391
 392 # some tools are so dependent upon X11 that if we're not building with X,
 393 # it's not even worth trying to configure, much less build, that tool.
 394
 395 case ${with_x} in
 396   yes | "")  # the default value for this tree is that X11 is available
 397         ;;
 398   no)
 399         skipdirs="${skipdirs} tk libgui gash"
 400         ;;
 401   *)
 402         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 403         ;;
 404 esac
 405
 406 # Some tools are only suitable for building in a "native" situation.
 407 # Those are added when we have a host==target configuration.  For cross
 408 # toolchains, we add some directories that should only be useful in a
 409 # cross-compiler.
 410
 411 is_cross_compiler=
 412
 413 if [ x"${host}" = x"${target}" ] ; then
 414         # when doing a native toolchain, don't build the targets
 415         # that are in the 'cross only' list
 416         skipdirs="${skipdirs} ${cross_only}"
 417         is_cross_compiler=no
 418 else
 419         # similarly, don't build the targets in the 'native only'
 420         # list when building a cross compiler
 421         skipdirs="${skipdirs} ${native_only}"
 422         is_cross_compiler=yes
 423 fi
 424
 425 # We always want to use the same name for this directory, so that dejagnu
 426 # can reliably find it.
 427 target_subdir=${target_alias}
 428
 429 if [ ! -d ${target_subdir} ] ; then
 430   if mkdir ${target_subdir} ; then true
 431   else
 432     echo "'*** could not make ${PWD=`pwd`}/${target_subdir}" 1>&2
 433     exit 1
 434   fi
 435 fi
 436
 437 copy_dirs=
 438
 439 # Handle --with-headers=XXX.  The contents of the named directory are
 440 # copied to $(tooldir)/sys-include.
 441 if [ x"${with_headers}" != x ]; then
 442   if [ x${is_cross_compiler} = xno ]; then
 443     echo 1>&2 '***' --with-headers is only supported when cross compiling
 444     exit 1
 445   fi
 446   case "${exec_prefixoption}" in
 447   "") x=${prefix} ;;
 448   *) x=${exec_prefix} ;;
 449   esac
 450   copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
 451 fi
 452
 453 # Handle --with-libs=XXX.  Multiple directories are permitted.  The
 454 # contents are copied to $(tooldir)/lib.
 455 if [ x"${with_libs}" != x ]; then
 456   if [ x${is_cross_compiler} = xno ]; then
 457     echo 1>&2 '***' --with-libs is only supported when cross compiling
 458     exit 1
 459   fi
 460   # Copy the libraries in reverse order, so that files in the first named
 461   # library override files in subsequent libraries.
 462   case "${exec_prefixoption}" in
 463   "") x=${prefix} ;;
 464   *) x=${exec_prefix} ;;
 465   esac
 466   for l in ${with_libs}; do
 467     copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 468   done
 469 fi
 470
 471 # If both --with-headers and --with-libs are specified, default to
 472 # --without-newlib.
 473 if [ x"${with_headers}" != x ] && [ x"${with_libs}" != x ]; then
 474   if [ x"${with_newlib}" = x ]; then
 475     with_newlib=no
 476   fi
 477 fi
 478
 479 # Recognize --with-newlib/--without-newlib.
 480 if [ x${with_newlib} = xno ]; then
 481   skipdirs="${skipdirs} target-newlib"
 482 elif [ x${with_newlib} = xyes ]; then
 483   skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 484 fi
 485
 486 # Default to using --with-stabs for certain targets.
 487 if [ x${with_stabs} = x ]; then
 488   case "${target}" in
 489   mips*-*-irix6*)
 490     ;;
 491   mips*-*-* | alpha*-*-osf*)
 492     with_stabs=yes;
 493     withoptions="${withoptions} --with-stabs"
 494     ;;
 495   esac
 496 fi
 497
 498 # Handle ${copy_dirs}
 499 set fnord ${copy_dirs}
 500 shift
 501 while [ $# != 0 ]; do
 502   if [ -f $2/COPIED ] && [ x"`cat $2/COPIED`" = x"$1" ]; then
 503     :
 504   else
 505     echo Copying $1 to $2
 506
 507     # Use the install script to create the directory and all required
 508     # parent directories.
 509     if [ -d $2 ]; then
 510       :
 511     else
 512       echo >config.temp
 513       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
 514     fi
 515
 516     # Copy the directory, assuming we have tar.
 517     # FIXME: Should we use B in the second tar?  Not all systems support it.
 518     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 519
 520     # It is the responsibility of the user to correctly adjust all
 521     # symlinks.  If somebody can figure out how to handle them correctly
 522     # here, feel free to add the code.
 523
 524     echo $1 > $2/COPIED
 525   fi
 526   shift; shift
 527 done
 528
 529 # Configure extra directories which are host specific
 530
 531 case "${host}" in
 532         i[3456]86-*-go32*)
 533           configdirs="$configdirs dosrel" ;;
 534         i[3456]86-*-mingw32*)
 535           configdirs="$configdirs dosrel" ;;
 536         *-cygwin*)
 537           configdirs="$configdirs libtermcap dosrel" ;;
 538 esac
 539
 540 # Remove more programs from consideration, based on the host or
 541 # target this usually means that a port of the program doesn't
 542 # exist yet.
 543
 544 noconfigdirs=""
 545
 546 case "${host}" in
 547   i[3456]86-*-vsta)
 548     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl apache inet itcl tix db snavigator gnuserv gettext"
 549     ;;
 550   i[3456]86-*-go32* | i[3456]86-*-msdosdjgpp*)
 551     noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl apache inet itcl tix db snavigator gnuserv gettext libffi"
 552         ;;
 553   i[3456]86-*-mingw32*)
 554     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl apache inet itcl tix db snavigator gnuserv"
 555      noconfigdirs="expect dejagnu cvs autoconf automake send-pr rcs guile perl texinfo apache inet libtool"
 556         ;;
 557   i[3456]86-*-beos*)
 558      noconfigdirs="$noconfigdirs tk itcl tix libgui gdb"
 559      ;;
 560   *-*-cygwin*)
 561      noconfigdirs="autoconf automake send-pr rcs guile perl apache inet"
 562     ;;
 563   *-*-netbsd*)
 564     noconfigdirs="rcs"
 565     ;;
 566   ppc*-*-pe)
 567      noconfigdirs="patch diff make tk tcl expect dejagnu cvssrc autoconf automake texinfo bison send-pr gprof rcs guile perl apache inet itcl tix db snavigator gnuserv"
 568     ;;
 569   powerpc-*-beos*)
 570     noconfigdirs="$noconfigdirs tk itcl tix libgui gdb dejagnu readline"
 571     ;;
 572 esac
 573
 574
 575 # Save it here so that, even in case of --enable-libgcj, if the Java
 576 # front-end isn't enabled, we still get libgcj disabled.
 577 libgcj_saved=$libgcj
 578 case $enable_libgcj in
 579 yes)
 580   # If we reset it here, it won't get added to noconfigdirs in the
 581   # target-specific build rules, so it will be forcibly enabled
 582   # (unless the Java language itself isn't enabled).
 583   libgcj=
 584   ;;
 585 no)
 586   # Make sure we get it printed in the list of not supported target libs.
 587   noconfigdirs="$noconfigdirs ${libgcj}"
 588   ;;
 589 esac
 590
 591 case "${target}" in
 592   *-*-netware)
 593     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-newlib target-libiberty target-libgloss target-libffi"
 594     ;;
 595   *-*-rtems*)
 596     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 597     ;;
 598   *-*-vxworks*)
 599     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libffi"
 600     ;;
 601   alpha*-dec-osf*)
 602     # ld works, but does not support shared libraries.  emacs doesn't
 603     # work.  newlib is not 64 bit ready.  I'm not sure about fileutils.
 604     # gas doesn't generate exception information.
 605     noconfigdirs="$noconfigdirs gas ld emacs fileutils target-newlib target-libgloss"
 606     ;;
 607   alpha*-*-*vms*)
 608     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss target-libffi"
 609     ;;
 610   alpha*-*-*)
 611     # newlib is not 64 bit ready
 612     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 613     ;;
 614   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 615     noconfigdirs="$noconfigdirs target-libjava target-libffi target-zlib"
 616     noconfigdirs="$noconfigdirs target-boehm-gc target-qthreads target-examples"
 617     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 618     noconfigdirs="$noconfigdirs tcl tix tk itcl libgui sim"
 619     noconfigdirs="$noconfigdirs expect dejagnu"
 620     # the C++ libraries don't build on top of CE's C libraries
 621     noconfigdirs="$noconfigdirs ${libstdcxx_version}"
 622     skipdirs="$skipdirs target-newlib"
 623     case "${host}" in
 624       *-*-cygwin*) ;; # keep gdb and readline
 625       *) noconfigdirs="$noconfigdirs gdb readline ${libstdcxx_version}"
 626          ;;
 627     esac
 628     ;;
 629   arc-*-*)
 630     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 631     ;;
 632   arm-*-pe*)
 633     noconfigdirs="$noconfigdirs target-libgloss"
 634     ;;
 635   arm-*-coff*)
 636     noconfigdirs="$noconfigdirs target-libgloss"
 637     if [ x${is_cross_compiler} != xno ] ; then
 638            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 639     fi
 640     ;;
 641   arm-*-elf*)
 642     noconfigdirs="$noconfigdirs target-libgloss"
 643     if [ x${is_cross_compiler} != xno ] ; then
 644            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 645     fi
 646     ;;
 647   arm-*-oabi*)
 648     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 649     ;;
 650   thumb-*-coff)
 651     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 652     ;;
 653   thumb-*-elf)
 654     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 655     ;;
 656   thumb-*-oabi)
 657     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 658     ;;
 659   strongarm-*-elf)
 660     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 661     if [ x${is_cross_compiler} != xno ] ; then
 662            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 663     fi
 664     ;;
 665   strongarm-*-coff)
 666     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 667     if [ x${is_cross_compiler} != xno ] ; then
 668            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 669     fi
 670     ;;
 671   xscale-*-elf)
 672     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 673     if [ x${is_cross_compiler} != xno ] ; then
 674            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 675     fi
 676     ;;
 677   xscale-*-coff)
 678     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 679     if [ x${is_cross_compiler} != xno ] ; then
 680            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 681     fi
 682     ;;
 683   thumb-*-pe)
 684     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 685     ;;
 686   arm-*-riscix*)
 687     noconfigdirs="$noconfigdirs ld target-libgloss target-libffi"
 688     ;;
 689   c4x-*-*)
 690     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi"
 691     ;;
 692   c54x*-*-* | tic54x-*-*)
 693     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi gcc gdb newlib"
 694     ;;
 695   d10v-*-*)
 696     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi"
 697     ;;
 698   d30v-*-*)
 699     ;;
 700   fr30-*-elf*)
 701     if [ x${is_cross_compiler} != xno ] ; then
 702            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 703     fi
 704     ;;
 705   h8300*-*-*)
 706     noconfigdirs="$noconfigdirs target-libgloss"
 707     ;;
 708   h8500-*-*)
 709     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi"
 710     ;;
 711   hppa*-*-*elf* | \
 712   hppa*-*-linux-gnu* | \
 713   hppa*-*-lites* | \
 714   hppa*64*-*-*)
 715     # Do configure ld/binutils/gas for this case.
 716     ;;
 717   hppa*-*-*)
 718     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 719     # cc is gcc, and on any system a user should be able to link cc to
 720     # whatever they want.  FIXME, emacs emacs19).
 721     case "${CC}" in
 722         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 723         *) ;;
 724     esac
 725     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 726     # build on HP-UX 10.20.
 727     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 728     ;;
 729   ia64*-*-elf*)
 730     # No gdb support yet.
 731     noconfigdirs="$noconfigdirs tix readline mmalloc libgui itcl gdb"
 732     ;;
 733   i[3456]86-*-coff | i[3456]86-*-elf)
 734     if [ x${is_cross_compiler} != xno ] ; then
 735          target_configdirs="${target_configdirs} target-libstub target-cygmon"
 736     fi
 737     ;;
 738   i[3456]86-*-go32* | i[3456]-*-msdosdjgpp*)
 739     # but don't build gdb
 740     noconfigdirs="$noconfigdirs gdb ${libstdcxx_version} target-libffi"
 741     ;;
 742   i[3456]86-*-mingw32*)
 743     target_configdirs="$target_configdirs target-mingw"
 744     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 745
 746     # Can't build gdb for mingw32 if not native.
 747     case "${host}" in
 748       i[3456]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 749       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix db snavigator gnuserv"
 750          ;;
 751     esac
 752     ;;
 753   *-*-cygwin*)
 754     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 755     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 756     # always build newlib.
 757     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 758
 759     # Can't build gdb for Cygwin if not native.
 760     case "${host}" in
 761       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 762       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix libgui db snavigator gnuserv"
 763          ;;
 764     esac
 765     ;;
 766   i[3456]86-*-pe)
 767     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi"
 768     ;;
 769   i[3456]86-*-sco3.2v5*)
 770     # The linker does not yet know about weak symbols in COFF,
 771     # and is not configured to handle mixed ELF and COFF.
 772     noconfigdirs="$noconfigdirs ld target-libgloss target-libffi"
 773     ;;
 774   i[3456]86-*-sco*)
 775     noconfigdirs="$noconfigdirs gprof target-libgloss target-libffi"
 776     ;;
 777   i[3456]86-*-solaris2*)
 778     noconfigdirs="$noconfigdirs target-libgloss"
 779     ;;
 780   i[3456]86-*-sysv4*)
 781     # The SYSV4 C compiler doesn't handle Emacs correctly
 782     case "${CC}" in
 783         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 784         *) ;;
 785     esac
 786     # but that's okay since emacs doesn't work anyway
 787     noconfigdirs="$noconfigdirs emacs emacs19 target-libgloss target-libffi"
 788     ;;
 789   i[3456]86-*-beos*)
 790      noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 791      ;;
 792  m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 793     noconfigdirs="$noconfigdirs target-libiberty target-librx target-libg++ target-libstdc++ target-libio target-libf2c target-libchill target-zlib target-libobjc"
 794     ;;
 795  m68k-*-elf*)
 796     if [ x${is_cross_compiler} != xno ] ; then
 797            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 798     fi
 799     ;;
 800   m68k-*-coff*)
 801     if [ x${is_cross_compiler} != xno ] ; then
 802            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 803     fi
 804     ;;
 805   mn10200-*-*)
 806     noconfigdirs="$noconfigdirs target-libffi"
 807     if [ x${is_cross_compiler} != xno ] ; then
 808            target_configdirs="${target_configdirs} target-libstub target-cygmon"
 809     fi
 810     ;;
 811   mn10300-*-*)
 812     noconfigdirs="$noconfigdirs target-libffi"
 813     if [ x${is_cross_compiler} != xno ] ; then
 814            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 815     fi
 816     ;;
 817   powerpc-*-aix*)
 818     # copied from rs6000-*-* entry
 819     use_gnu_ld=yes
 820     ;;
 821   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 822     target_configdirs="$target_configdirs target-winsup"
 823     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl tix db snavigator gnuserv target-libffi"
 824     # always build newlib.
 825     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 826     ;;
 827     # This is temporary until we can link against shared libraries
 828   powerpcle-*-solaris*)
 829     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl tix db snavigator gnuserv target-libffi"
 830     ;;
 831   powerpc-*-beos*)
 832     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 833     ;;
 834   powerpc-*-eabi)
 835     if [ x${is_cross_compiler} != xno ] ; then
 836            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 837     fi
 838     ;;
 839   rs6000-*-lynxos*)
 840     # The CVS server code doesn't work on the RS/6000
 841     noconfigdirs="$noconfigdirs target-newlib gprof cvssrc target-libffi"
 842     ;;
 843   rs6000-*-aix*)
 844     noconfigdirs="$noconfigdirs gprof target-libffi"
 845     use_gnu_ld=yes
 846     ;;
 847   rs6000-*-*)
 848     noconfigdirs="$noconfigdirs gprof target-libffi"
 849     ;;
 850   m68k-apollo-*)
 851     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss target-libffi"
 852     ;;
 853   mips*-*-irix5*)
 854     # The GNU linker does not support shared libraries.
 855     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 856     noconfigdirs="$noconfigdirs ld gprof emacs target-libgloss"
 857     ;;
 858   mips*-*-irix6*)
 859     # The GNU assembler does not support IRIX 6.
 860     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 861     # Linking libjava exceeds command-line length limits on at least
 862     # IRIX 6.2, but not on IRIX 6.5.
 863     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 864     # <oldham@codesourcery.com>
 865     noconfigdirs="$noconfigdirs gas gprof emacs target-libgloss ${libgcj}"
 866     ;;
 867   mips*-dec-bsd*)
 868     noconfigdirs="$noconfigdirs gprof target-libgloss target-libffi"
 869     ;;
 870   mips*-*-bsd*)
 871     noconfigdirs="$noconfigdirs gprof target-libgloss target-libffi"
 872     ;;
 873   mipstx39-*-*)
 874     noconfigdirs="$noconfigdirs gprof target-libffi"   # same as generic mips
 875     target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 876    ;;
 877   mips*-*-*)
 878     noconfigdirs="$noconfigdirs gprof target-libffi"
 879     ;;
 880   romp-*-*)
 881     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss target-libffi"
 882     ;;
 883   sh-*-*)
 884     case "${host}" in
 885       i[3456]86-*-vsta) ;; # don't add gprof back in
 886       i[3456]86-*-go32*) ;; # don't add gprof back in
 887       i[3456]86-*-msdosdjgpp*) ;; # don't add gprof back in
 888       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 889     esac
 890     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 891     ;;
 892   sparc-*-elf*)
 893     if [ x${is_cross_compiler} != xno ] ; then
 894            target_configdirs="${target_configdirs} target-libstub target-cygmon"
 895     fi
 896     ;;
 897   sparc64-*-elf*)
 898     if [ x${is_cross_compiler} != xno ] ; then
 899            target_configdirs="${target_configdirs} target-libstub target-cygmon"
 900     fi
 901     noconfigdirs="$noconfigdirs target-libffi"
 902     ;;
 903   sparclite-*-*)
 904     if [ x${is_cross_compiler} != xno ] ; then
 905            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 906     fi
 907     noconfigdirs="$noconfigdirs target-libffi"
 908     ;;
 909   sparc-*-sunos4*)
 910     if [ x${is_cross_compiler} != xno ] ; then
 911            noconfigdirs="$noconfigdirs gdb gdbtest target-newlib target-libgloss"
 912     else
 913            use_gnu_ld=no
 914     fi
 915     ;;
 916   sparc-*-solaris*)
 917     case "${host}" in
 918     sparc-*-solaris2.8)
 919       # According to Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, libjava
 920       # won't build correctly on Solaris 8 if there's a
 921       # previously-installed version of GCC in the configured prefix.
 922       # This problem does not show up on earlier versions of Solaris.
 923       noconfigdirs="$noconfigdirs ${libgcj}"
 924       ;;
 925     esac
 926     ;;
 927   v810-*-*)
 928     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld ${libstdcxx_version} opcodes target-libgloss target-libffi"
 929     ;;
 930   v850-*-*)
 931     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 932     ;;
 933   v850e-*-*)
 934     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 935     ;;
 936   v850ea-*-*)
 937     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 938     ;;
 939   vax-*-vms)
 940     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss target-libffi"
 941     ;;
 942   vax-*-*)
 943     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libffi"
 944     ;;
 945   *-*-lynxos*)
 946     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libffi"
 947     ;;
 948   *-*-macos* | \
 949   *-*-mpw*)
 950     # Macs want a resource compiler.
 951     configdirs="$configdirs grez"
 952     noconfigdirs="$noconfigdirs target-libffi"
 953     ;;
 954 esac
 955
 956 # If we aren't building newlib, then don't build libgloss, since libgloss
 957 # depends upon some newlib header files.
 958 case "${noconfigdirs}" in
 959   *target-libgloss*) ;;
 960   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 961 esac
 962
 963 # Make sure we don't let GNU ld be added if we didn't want it.
 964 if [ x$with_gnu_ld = xno ]; then
 965   use_gnu_ld=no
 966   noconfigdirs="$noconfigdirs ld"
 967 fi
 968
 969 # Make sure we don't let GNU as be added if we didn't want it.
 970 if [ x$with_gnu_as = xno ]; then
 971   use_gnu_as=no
 972   noconfigdirs="$noconfigdirs gas"
 973 fi
 974
 975 # Figure out what language subdirectories are present.
 976 # Look if the user specified --enable-languages="..."; if not, use
 977 # the environment variable $LANGUAGES if defined. $LANGUAGES might
 978 # go away some day.
 979 # NB:  embedded tabs in this IF block -- do not untabify
 980 if test x"${enable_languages+set}" != xset; then
 981         if test x"${LANGUAGES+set}" = xset; then
 982                 enable_languages="${LANGUAGES}"
 983                 echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
 984         else
 985                 enable_languages=all
 986         fi
 987 else
 988         if test x"${enable_languages}" = x ||
 989            test x"${enable_languages}" = xyes;
 990         then
 991                 echo configure.in: --enable-languages needs at least one language argument 1>&2
 992                 exit 1
 993         fi
 994 fi
 995 enable_languages=`echo "${enable_languages}" | sed -e 's/[      ,][     ,]*/,/g' -e 's/,$//'`
 996
 997 subdirs=
 998 for lang in ${srcdir}/gcc/*/config-lang.in ..
 999 do
1000         case $lang in
1001         ..) ;;
1002         # The odd quoting in the next line works around
1003         # an apparent bug in bash 1.12 on linux.
1004         ${srcdir}/gcc/[*]/config-lang.in) ;;
1005         *)
1006           lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^   ]*\).*$,\1,p' $lang`
1007           this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^         ]*\).*$,\1,p' $lang`
1008           build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^     ]*\).*$,\1,p' $lang`
1009           if test "x$lang_alias" = x
1010           then
1011                 echo "$lang doesn't set \$language." 1>&2
1012                 exit 1
1013           fi
1014           case ${build_by_default},${enable_languages}, in
1015           *,$lang_alias,*) add_this_lang=yes ;;
1016           no,*) add_this_lang=no ;;
1017           *,all,*) add_this_lang=yes ;;
1018           *) add_this_lang=no ;;
1019           esac
1020           if test x"${add_this_lang}" = xyes; then
1021               eval target_libs='"$target_libs "'\"$this_lang_libs\"
1022           else
1023               eval noconfigdirs='"$noconfigdirs "'\"$this_lang_libs\"
1024           fi
1025           ;;
1026         esac
1027 done
1028
1029
1030 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
1031 # $target_configdirs.
1032 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1033
1034 notsupp=""
1035 for dir in . $skipdirs $noconfigdirs ; do
1036   dirname=`echo $dir | sed -e s/target-//g`
1037   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1038     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1039     if [ -r $srcdir/$dirname/configure ] \
1040         || [ -r $srcdir/$dirname/configure.in ]; then
1041       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1042         true
1043       else
1044         notsupp="$notsupp $dir"
1045       fi
1046     fi
1047   fi
1048   if [ $dir != . ]  && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1049     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1050     if [ -r $srcdir/$dirname/configure ] \
1051         || [ -r $srcdir/$dirname/configure.in ]; then
1052       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1053         true
1054       else
1055         notsupp="$notsupp $dir"
1056       fi
1057     fi
1058   fi
1059 done
1060
1061 # Sometimes the tools are distributed with libiberty but with no other
1062 # libraries.  In that case, we don't want to build target-libiberty.
1063 if [ -n "${target_configdirs}" ]; then
1064   others=
1065   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1066     if [ "$i" != "libiberty" ]; then
1067       if [ -r $srcdir/$i/configure ] || [ -r $srcdir/$i/configure.in ]; then
1068         others=yes;
1069         break;
1070       fi
1071     fi
1072   done
1073   if [ -z "${others}" ]; then
1074     target_configdirs=
1075   fi
1076 fi
1077
1078 # Deconfigure all subdirectories, in case we are changing the
1079 # configuration from one where a subdirectory is supported to one where it
1080 # is not.
1081 if [ -z "${norecursion}" ] && [ -n "${configdirs}" ]; then
1082   for i in `echo ${configdirs} | sed -e s/target-//g` ; do
1083     rm -f $i/Makefile
1084   done
1085 fi
1086 if [ -z "${norecursion}" ] && [ -n "${target_configdirs}" ]; then
1087   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1088     rm -f ${target_subdir}/$i/Makefile
1089   done
1090 fi
1091
1092 # Produce a warning message for the subdirs we can't configure.
1093 # This isn't especially interesting in the Cygnus tree, but in the individual
1094 # FSF releases, it's important to let people know when their machine isn't
1095 # supported by the one or two programs in a package.
1096
1097 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
1098   # If $appdirs is non-empty, at least one of those directories must still
1099   # be configured, or we error out.  (E.g., if the gas release supports a
1100   # specified target in some subdirs but not the gas subdir, we shouldn't
1101   # pretend that all is well.)
1102   if [ -n "$appdirs" ]; then
1103     for dir in $appdirs ; do
1104       if [ -r $dir/Makefile.in ]; then
1105         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1106           appdirs=""
1107           break
1108         fi
1109         if echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1110           appdirs=""
1111           break
1112         fi
1113       fi
1114     done
1115     if [ -n "$appdirs" ]; then
1116       echo "*** This configuration is not supported by this package." 1>&2
1117       exit 1
1118     fi
1119   fi
1120   # Okay, some application will build, or we don't care to check.  Still
1121   # notify of subdirs not getting built.
1122   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1123   echo "    ${notsupp}" 1>&2
1124   echo "    (Any other directories should still work fine.)" 1>&2
1125 fi
1126
1127 # Set with_gnu_as and with_gnu_ld as appropriate.
1128 #
1129 # This is done by determining whether or not the appropriate directory
1130 # is available, and by checking whether or not specific configurations
1131 # have requested that this magic not happen.
1132 #
1133 # The command line options always override the explicit settings in
1134 # configure.in, and the settings in configure.in override this magic.
1135 #
1136 # If the default for a toolchain is to use GNU as and ld, and you don't
1137 # want to do that, then you should use the --without-gnu-as and
1138 # --without-gnu-ld options for the configure script.
1139
1140 if [ x${use_gnu_as} = x ] ; then
1141   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
1142     with_gnu_as=yes
1143     withoptions="$withoptions --with-gnu-as"
1144   fi
1145 fi
1146
1147 if [ x${use_gnu_ld} = x ] ; then
1148   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
1149     with_gnu_ld=yes
1150     withoptions="$withoptions --with-gnu-ld"
1151   fi
1152 fi
1153
1154 # If using newlib, add --with-newlib to the withoptions so that gcc/configure
1155 # can detect this case.
1156
1157 if [ x${with_newlib} != xno ] && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 && [ -d ${srcdir}/newlib ] ; then
1158   with_newlib=yes
1159   withoptions="$withoptions --with-newlib"
1160 fi
1161
1162 if [ x${shared} = xyes ]; then
1163   case "${target}" in
1164     hppa*)
1165       target_makefile_frag="${target_makefile_frag} config/mt-papic"
1166       ;;
1167     i[3456]86-*)
1168       target_makefile_frag="${target_makefile_frag} config/mt-x86pic"
1169       ;;
1170     ia64-*)
1171       target_makefile_frag="${target_makefile_frag} config/mt-ia64pic"
1172       ;;
1173     powerpc*-*-aix*)
1174       # We don't want -fPIC on AIX.
1175       ;;
1176     powerpc*-*)
1177       target_makefile_frag="${target_makefile_frag} config/mt-ppcpic"
1178       ;;
1179     alpha*-*-linux*)
1180       target_makefile_frag="${target_makefile_frag} config/mt-elfalphapic"
1181       ;;
1182     *)
1183       if test -f ${srcdir}/config/mt-${target_cpu}pic; then
1184         target_makefile_frag="${target_makefile_frag} config/mt-${target_cpu}pic"
1185       fi
1186       ;;
1187   esac
1188 fi
1189
1190 rm -f mt-frag
1191 if [ -n "${target_makefile_frag}" ] ; then
1192   for f in ${target_makefile_frag}
1193   do
1194     cat ${srcdir}/$f >> mt-frag
1195   done
1196   target_makefile_frag=mt-frag
1197 fi
1198
1199 # post-target:
1200
1201 # Make sure that the compiler is able to generate an executable.  If it
1202 # can't, we are probably in trouble.  We don't care whether we can run the
1203 # executable--we might be using a cross compiler--we only care whether it
1204 # can be created.  At this point the main configure script has set CC.
1205 echo "int main () { return 0; }" > conftest.c
1206 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1207 if [ $? = 0 ] && [ -s conftest -o -s conftest.exe ]; then
1208   :
1209 else
1210   echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1211   echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1212   rm -f conftest*
1213   exit 1
1214 fi
1215 rm -f conftest*
1216
1217 # The Solaris /usr/ucb/cc compiler does not appear to work.
1218 case "${host}" in
1219   sparc-sun-solaris2*)
1220       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1221       if [ "`type $CCBASE | sed 's/^[^/]*//'`" = "/usr/ucb/cc" ] ; then
1222           could_use=
1223           [ -d /opt/SUNWspro/bin ] && could_use="/opt/SUNWspro/bin"
1224           if [ -d /opt/cygnus/bin ] ; then
1225               if [ "$could_use" = "" ] ; then
1226                   could_use="/opt/cygnus/bin"
1227               else
1228                   could_use="$could_use or /opt/cygnus/bin"
1229               fi
1230           fi
1231         if [ "$could_use" = "" ] ; then
1232             echo "Warning: compilation may fail because you're using"
1233             echo "/usr/ucb/cc.  You should change your PATH or CC "
1234             echo "variable and rerun configure."
1235         else
1236             echo "Warning: compilation may fail because you're using"
1237             echo "/usr/ucb/cc, when you should use the C compiler from"
1238             echo "$could_use.  You should change your"
1239             echo "PATH or CC variable and rerun configure."
1240         fi
1241       fi
1242   ;;
1243 esac
1244
1245 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
1246 # binutils tools will find libbfd.so.
1247 if [ "${shared}" = "yes" ]; then
1248   sed -e 's/^SET_LIB_PATH[      ]*=.*$/SET_LIB_PATH = $(REALLY_SET_LIB_PATH)/' \
1249       Makefile > Makefile.tem
1250   rm -f Makefile
1251   mv -f Makefile.tem Makefile
1252
1253   case "${host}" in
1254   *-*-hpux*)
1255     sed -e 's/^RPATH_ENVVAR[    ]*=.*$/RPATH_ENVVAR = SHLIB_PATH/' \
1256         Makefile > Makefile.tem
1257     rm -f Makefile
1258     mv -f Makefile.tem Makefile
1259     ;;
1260   esac
1261 fi
1262
1263 # Record target_configdirs and the configure arguments in Makefile.
1264 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1265 targargs=`echo "${arguments}" | \
1266         sed -e 's/--no[^        ]*//' \
1267             -e 's/--cache[a-z-]*=[^     ]*//' \
1268             -e 's/--ho[a-z-]*=[^        ]*//' \
1269             -e 's/--bu[a-z-]*=[^        ]*//' \
1270             -e 's/--ta[a-z-]*=[^        ]*//'`
1271
1272 # Passing a --with-cross-host argument lets the target libraries know
1273 # whether they are being built with a cross-compiler or being built
1274 # native.  However, it would be better to use other mechanisms to make the
1275 # sorts of decisions they want to make on this basis.  Please consider
1276 # this option to be deprecated.  FIXME.
1277 if [ x${is_cross_compiler} = xyes ]; then
1278   targargs="--with-cross-host=${host_alias} ${targargs}"
1279 fi
1280
1281 # Default to --enable-multilib.
1282 if [ x${enable_multilib} = x ]; then
1283   targargs="--enable-multilib ${targargs}"
1284 fi
1285
1286 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1287 # changed from the earlier setting of with_newlib.
1288 if [ x${with_newlib} != xno ] && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && [ -d ${srcdir}/newlib ] ; then
1289   targargs="--with-newlib ${targargs}"
1290 fi
1291
1292 # provide a proper gxx_include_dir.
1293 # Note, if you change the default, make sure to fix both here and in
1294 # the gcc, libio, and libstdc++ subdirectories.
1295 # Check whether --with-gxx-include-dir or --without-gxx-include-dir was given.
1296 gxx_include_dir=
1297 if test -n "${with_gxx_include_dir}"; then
1298   case "${with_gxx_include_dir}" in
1299     yes )
1300       echo "configure.in: error: bad value ${withval} given for g++ include directory" 1>&2
1301       exit 1
1302       ;;
1303     no )
1304       ;;
1305     * )
1306       gxx_include_dir=${with_gxx_include_dir}
1307       ;;
1308   esac
1309 fi
1310 if test x${gxx_include_dir} = x; then
1311   if test x${enable_version_specific_runtime_libs} = xyes; then
1312     gxx_include_dir='${libsubdir}/include/g++'
1313   else
1314     . ${topsrcdir}/config.if
1315     gxx_include_dir='${prefix}/include/g++'-${libstdcxx_interface}
1316   fi
1317 else
1318   gxx_include_dir=${gxx_include_dir}
1319 fi
1320
1321 FLAGS_FOR_TARGET=
1322 case " $skipdirs " in
1323 *" target-newlib "*) ;;
1324 *)
1325    case "$target" in
1326    *-cygwin*)
1327      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/include -isystem $$s/winsup/cygwin/include -isystem $$s/winsup/w32api/include -isystem $$s/newlib/libc/sys/cygwin -isystem $$s/newlib/libc/sys/cygwin32' ;;
1328    esac
1329
1330    # If we're not building GCC, don't discard standard headers.
1331    if test -d ${topsrcdir}/gcc; then
1332      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1333
1334      if test "${build}" != "${host}"; then
1335        # On Canadian crosses, CC_FOR_TARGET will have already been set
1336        # by `configure', so we won't have an opportunity to add -Bgcc/
1337        # to it.  This is right: we don't want to search that directory
1338        # for binaries, but we want the header files in there, so add
1339        # them explicitly.
1340        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/gcc/include'
1341
1342        # Someone might think of using the pre-installed headers on
1343        # Canadian crosses, in case the installed compiler is not fully
1344        # compatible with the compiler being built.  In this case, it
1345        # would be better to flag an error than risking having
1346        # incompatible object files being constructed.  We can't
1347        # guarantee that an error will be flagged, but let's hope the
1348        # compiler will do it, when presented with incompatible header
1349        # files.
1350      fi
1351    fi
1352
1353    # If we're building newlib, use its generic headers last, but search
1354    # for any libc-related directories first (so make it the last -B
1355    # switch).
1356    FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
1357    ;;
1358 esac
1359
1360 # On Canadian crosses, we'll be searching the right directories for
1361 # the previously-installed cross compiler, so don't bother to add
1362 # flags for directories within the install tree of the compiler
1363 # being built; programs in there won't even run.
1364 if test "${build}" = "${host}" && test -d ${topsrcdir}/gcc; then
1365   # Search for pre-installed headers if nothing else fits.
1366   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include'
1367 fi
1368
1369 if test "x${use_gnu_ld}" = x && test "x${with_gnu_ld}" != xno &&
1370    echo " ${configdirs} " | grep " ld " > /dev/null &&
1371    test -d ${srcdir}/ld; then
1372   # Arrange for us to find uninstalled linker scripts.
1373   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/ld'
1374 fi
1375
1376 if test "x${CC_FOR_TARGET+set}" = xset; then
1377   :
1378 elif test -d ${topsrcdir}/gcc; then
1379   CC_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/'
1380 elif test "$host" = "$target"; then
1381   CC_FOR_TARGET='$(CC)'
1382 else
1383   CC_FOR_TARGET=`echo gcc | sed -e 's/x/x/' ${program_transform_name}`
1384 fi
1385 # On Canadian crosses, configure reads CC_FOR_TARGET from Makefile,
1386 # if Makefile exists.  Prevent $(FLAGS_FOR_TARGET) from being duplicated.
1387 case $CC_FOR_TARGET in
1388 *' $(FLAGS_FOR_TARGET)') ;;
1389 *) CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
1390 esac
1391
1392 if test "x${CHILL_FOR_TARGET+set}" = xset; then
1393   :
1394 elif test -d ${topsrcdir}/gcc; then
1395   CHILL_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/ -L$$r/gcc/ch/runtime/'
1396 elif test "$host" = "$target"; then
1397   CHILL_FOR_TARGET='$(CC)'
1398 else
1399   CHILL_FOR_TARGET=`echo gcc | sed -e 's/x/x/' ${program_transform_name}`
1400 fi
1401 case $CHILL_FOR_TARGET in
1402 *' $(FLAGS_FOR_TARGET)') ;;
1403 *) CHILL_FOR_TARGET=$CHILL_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
1404 esac
1405
1406 if test "x${CXX_FOR_TARGET+set}" = xset; then
1407   :
1408 elif test -d ${topsrcdir}/gcc; then
1409   CXX_FOR_TARGET='$$r/gcc/`case $$dir in libstdc++-v3) echo xgcc ;; *) echo g++ ;; esac` -B$$r/gcc/ -nostdinc++ '$libstdcxx_flags
1410 elif test "$host" = "$target"; then
1411   CXX_FOR_TARGET='$(CXX)'
1412 else
1413   CXX_FOR_TARGET=`echo c++ | sed -e 's/x/x/' ${program_transform_name}`
1414 fi
1415 case $CXX_FOR_TARGET in
1416 *' $(FLAGS_FOR_TARGET)') ;;
1417 *) CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
1418 esac
1419 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,[&%],\\\&,g'`
1420
1421 # We want to defer the evaluation of `cmd`s and shell variables in
1422 # CXX_FOR_TARGET when recursing in the top-level Makefile, such as for
1423 # bootstrap.  We'll enclose CXX_FOR_TARGET_FOR_RECURSIVE_MAKE in single
1424 # quotes, but we still have to duplicate `$'s so that shell variables
1425 # can be expanded by the nested make as shell variables, not as make
1426 # macros.
1427 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[$][$],$$$$,g'`
1428
1429 targargs="--cache-file=../config.cache --host=${target_alias} --build=${build_alias} ${targargs}"
1430 sed -e "s:^TARGET_CONFIGDIRS[   ]*=.*$:TARGET_CONFIGDIRS = ${target_configdirs}:" \
1431     -e "s%^CONFIG_ARGUMENTS[    ]*=.*$%CONFIG_ARGUMENTS = ${targargs}%" \
1432     -e "s%^FLAGS_FOR_TARGET[    ]*=.*$%FLAGS_FOR_TARGET = ${FLAGS_FOR_TARGET}%" \
1433     -e "s%^CC_FOR_TARGET[       ]*=.*$%CC_FOR_TARGET = ${CC_FOR_TARGET}%" \
1434     -e "s%^CHILL_FOR_TARGET[    ]*=.*$%CHILL_FOR_TARGET = ${CHILL_FOR_TARGET}%" \
1435     -e "s%^CXX_FOR_TARGET[      ]*=.*$%CXX_FOR_TARGET = ${qCXX_FOR_TARGET}%" \
1436     -e "s%^CXX_FOR_TARGET_FOR_RECURSIVE_MAKE[   ]*=.*$%CXX_FOR_TARGET_FOR_RECURSIVE_MAKE = ${qqCXX_FOR_TARGET}%" \
1437     -e "s%^TARGET_SUBDIR[       ]*=.*$%TARGET_SUBDIR = ${target_subdir}%" \
1438     -e "s%^gxx_include_dir[     ]*=.*$%gxx_include_dir=${gxx_include_dir}%" \
1439        Makefile > Makefile.tem
1440 rm -f Makefile
1441 mv -f Makefile.tem Makefile
1442
1443 #
1444 # Local Variables:
1445 # fill-column: 131
1446 # End:
1447 #