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 libstdcxx_version="target-libstdc++-v3"
  51 # Don't use libstdc++-v3's flags to configure/build itself.
  52 libstdcxx_flags='`case $$dir in libstdc++-v3 | libjava) ;; *) test ! -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/testsuite_flags || $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/testsuite_flags --build-includes;; esac` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
  53
  54 # these tools are built for the host environment
  55 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
  56 # know that we are building the simulator.
  57 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"
  58
  59 # these libraries are built for the target environment, and are built after
  60 # the host libraries and the host tools (which may be a cross compiler)
  61 #
  62 target_libs="target-libiberty \
  63                 target-libgloss \
  64                 target-newlib \
  65                 ${libstdcxx_version} \
  66                 target-libf2c \
  67                 target-libchill \
  68                 target-libffi \
  69                 target-libjava \
  70                 target-zlib \
  71                 target-boehm-gc \
  72                 target-qthreads \
  73                 target-libobjc"
  74
  75 # these tools are built using the target libs, and are intended to run only
  76 # in the target environment
  77 #
  78 # note: any program that *uses* libraries that are in the "target_libs"
  79 # list belongs in this list.  those programs are also very likely
  80 # candidates for the "native_only" list which follows
  81 #
  82 target_tools="target-examples target-groff target-gperf"
  83
  84 ################################################################################
  85
  86 ## These two lists are of directories that are to be removed from the
  87 ## ${configdirs} list for either cross-compilations or for native-
  88 ## compilations.  For example, it doesn't make that much sense to
  89 ## cross-compile Emacs, nor is it terribly useful to compile target-libiberty in
  90 ## a native environment.
  91
  92 # directories to be built in the native environment only
  93 #
  94 # This must be a single line because of the way it is searched by grep in
  95 # the code below.
  96 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"
  97
  98 # directories to be built in a cross environment only
  99 #
 100 cross_only="target-libgloss target-newlib target-cygmon target-opcodes target-libstub"
 101
 102 ## All tools belong in one of the four categories, and are assigned above
 103 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 104 ## is important because configure will choke if they ever get through.
 105 ## ${configdirs} is directories we build using the host tools.
 106 ## ${target_configdirs} is directories we build using the target tools.
 107 #
 108 configdirs=`echo ${host_libs} ${host_tools}`
 109 target_configdirs=`echo ${target_libs} ${target_tools}`
 110
 111 ################################################################################
 112
 113 srctrigger=move-if-change
 114 srcname="gnu development package"
 115
 116 # This gets set non-empty for some net releases of packages.
 117 appdirs=""
 118
 119 # per-host:
 120
 121 # Work in distributions that contain no compiler tools, like Autoconf.
 122 if [ -d ${srcdir}/config ]; then
 123 case "${host}" in
 124   m68k-hp-hpux*)
 125     host_makefile_frag="${host_makefile_frag} config/mh-hp300"
 126     ;;
 127   m68k-apollo-sysv*)
 128     host_makefile_frag="${host_makefile_frag} config/mh-apollo68"
 129     ;;
 130   m68k-apollo-bsd*)
 131     host_makefile_frag="${host_makefile_frag} config/mh-a68bsd"
 132     ;;
 133   m88k-dg-dgux*)
 134     host_makefile_frag="${host_makefile_frag} config/mh-dgux"
 135     ;;
 136   m88k-harris-cxux*)
 137     host_makefile_frag="${host_makefile_frag} config/mh-cxux"
 138     ;;
 139   m88k-motorola-sysv*)
 140     host_makefile_frag="${host_makefile_frag} config/mh-delta88"
 141     ;;
 142   mips*-dec-ultrix*)
 143     host_makefile_frag="${host_makefile_frag} config/mh-decstation"
 144     ;;
 145   mips*-nec-sysv4*)
 146     host_makefile_frag="${host_makefile_frag} config/mh-necv4"
 147     ;;
 148   mips*-sgi-irix6*)
 149     host_makefile_frag="${host_makefile_frag} config/mh-irix6"
 150     ;;
 151   mips*-sgi-irix5*)
 152     host_makefile_frag="${host_makefile_frag} config/mh-irix5"
 153     ;;
 154   mips*-sgi-irix4*)
 155     host_makefile_frag="${host_makefile_frag} config/mh-irix4"
 156     ;;
 157   mips*-sgi-irix3*)
 158     host_makefile_frag="${host_makefile_frag} config/mh-sysv"
 159     ;;
 160   mips*-*-sysv4*)
 161     host_makefile_frag="${host_makefile_frag} config/mh-sysv4"
 162     ;;
 163   mips*-*-sysv*)
 164     host_makefile_frag="${host_makefile_frag} config/mh-riscos"
 165     ;;
 166   i370-ibm-opened*)
 167     host_makefile_frag="${host_makefile_frag} config/mh-openedition"
 168     ;;
 169   i[3456]86-*-sysv5*)
 170     host_makefile_frag="${host_makefile_frag} config/mh-sysv5"
 171     ;;
 172   i[3456]86-*-dgux*)
 173     host_makefile_frag="${host_makefile_frag} config/mh-dgux386"
 174     ;;
 175   i[3456]86-ncr-sysv4.3*)
 176     host_makefile_frag="${host_makefile_frag} config/mh-ncrsvr43"
 177     ;;
 178   i[3456]86-ncr-sysv4*)
 179     host_makefile_frag="${host_makefile_frag} config/mh-ncr3000"
 180     ;;
 181   i[3456]86-*-sco3.2v5*)
 182     host_makefile_frag="${host_makefile_frag} config/mh-sysv"
 183     ;;
 184   i[3456]86-*-sco*)
 185     host_makefile_frag="${host_makefile_frag} config/mh-sco"
 186     ;;
 187   i[3456]86-*-udk*)
 188     host_makefile_frag="${host_makefile_frag} config/mh-sysv5"
 189     ;;
 190   i[3456]86-*-isc*)
 191     host_makefile_frag="${host_makefile_frag} config/mh-sysv"
 192     ;;
 193   i[3456]86-*-solaris2*)
 194     host_makefile_frag="${host_makefile_frag} config/mh-sysv4"
 195     ;;
 196   i[3456]86-*-aix*)
 197     host_makefile_frag="${host_makefile_frag} config/mh-aix386"
 198     ;;
 199   i[3456]86-*-msdosdjgpp*)
 200     host_makefile_frag="${host_makefile_frag} config/mh-djgpp"
 201     ;;
 202   *-cygwin*)
 203     host_makefile_frag="${host_makefile_frag} config/mh-cygwin"
 204     ;;
 205   *-mingw32*)
 206     host_makefile_frag="${host_makefile_frag} config/mh-mingw32"
 207     ;;
 208   *-interix*)
 209     host_makefile_frag="${host_makefile_frag} config/mh-interix"
 210     ;;
 211   *-windows*)
 212     host_makefile_frag="${host_makefile_frag} config/mh-windows"
 213     ;;
 214   vax-*-ultrix2*)
 215     host_makefile_frag="${host_makefile_frag} config/mh-vaxult2"
 216     ;;
 217   *-*-solaris2*)
 218     host_makefile_frag="${host_makefile_frag} config/mh-solaris"
 219     ;;
 220   m68k-sun-sunos*)
 221     host_makefile_frag="${host_makefile_frag} config/mh-sun3"
 222     ;;
 223   *-hp-hpux[78]*)
 224     host_makefile_frag="${host_makefile_frag} config/mh-hpux8"
 225     ;;
 226   *-hp-hpux*)
 227     host_makefile_frag="${host_makefile_frag} config/mh-hpux"
 228     ;;
 229   *-*-hiux*)
 230     host_makefile_frag="${host_makefile_frag} config/mh-hpux"
 231     ;;
 232   rs6000-*-lynxos*)
 233     host_makefile_frag="${host_makefile_frag} config/mh-lynxrs6k"
 234     ;;
 235   *-*-lynxos*)
 236     host_makefile_frag="${host_makefile_frag} config/mh-lynxos"
 237     ;;
 238   *-*-sysv4*)
 239     host_makefile_frag="${host_makefile_frag} config/mh-sysv4"
 240     ;;
 241   *-*-sysv*)
 242     host_makefile_frag="${host_makefile_frag} config/mh-sysv"
 243     ;;
 244 esac
 245 fi
 246
 247 # If we aren't going to be using gcc, see if we can extract a definition
 248 # of CC from the fragment.
 249 if [ -z "${CC}" ] && [ "${build}" = "${host}" ]; then
 250   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 251   found=
 252   for dir in $PATH; do
 253     test -z "$dir" && dir=.
 254     if test -f $dir/gcc; then
 255       found=yes
 256       break
 257     fi
 258   done
 259   IFS="$save_ifs"
 260   if [ -z "${found}" ] && [ -n "${host_makefile_frag}" ] && [ -f "${srcdir}/${host_makefile_frag}" ]; then
 261     xx=`sed -n -e 's/^[         ]*CC[   ]*=[    ]*\(.*\)$/\1/p' < ${srcdir}/${host_makefile_frag}`
 262     if [ -n "${xx}" ] ; then
 263       CC=$xx
 264     fi
 265   fi
 266 fi
 267
 268 # We default to --with-shared on platforms where -fpic is meaningless.
 269 # Well, we don't yet, but we will.
 270 if false && [ "${host}" = "${target}" ] && [ x${enable_shared} = x ]; then
 271   case "${target}" in
 272     alpha*-dec-osf*)    enable_shared=yes ;;
 273     alpha*-*-linux*)    enable_shared=yes ;;
 274     mips-sgi-irix5*)    enable_shared=yes ;;
 275     *)                  enable_shared=no ;;
 276   esac
 277 fi
 278
 279 case "${enable_shared}" in
 280   yes) shared=yes ;;
 281   no) shared=no ;;
 282   "") shared=no ;;
 283   *) shared=yes ;;
 284 esac
 285
 286 if [ x${shared} = xyes ]; then
 287   case "${host}" in
 288     alpha*-*-linux*)
 289       host_makefile_frag="${host_makefile_frag} config/mh-elfalphapic"
 290       ;;
 291     arm*-*-*)
 292       host_makefile_frag="${host_makefile_frag} config/mh-armpic"
 293       ;;
 294     hppa*-*-*)
 295       host_makefile_frag="${host_makefile_frag} config/mh-papic"
 296       ;;
 297     i[3456]86-*-cygwin*)
 298       # We don't want -fPIC on Cygwin.
 299       ;;
 300     i[3456]86-*-*)
 301       host_makefile_frag="${host_makefile_frag} config/mh-x86pic"
 302       ;;
 303     i370-*-*)
 304       host_makefile_frag="${host_makefile_frag} config/mh-i370pic"
 305       ;;
 306     ia64-*-*)
 307       host_makefile_frag="${host_makefile_frag} config/mh-ia64pic"
 308       ;;
 309     sparc64-*-*)
 310       host_makefile_frag="${host_makefile_frag} config/mh-sparcpic"
 311       ;;
 312     powerpc*-*-aix*)
 313       # We don't want -fPIC on AIX.
 314       ;;
 315     powerpc*-*-*)
 316       host_makefile_frag="${host_makefile_frag} config/mh-ppcpic"
 317       ;;
 318     s390-* | s390x-*)
 319       host_makefile_frag="${host_makefile_frag} config/mh-s390pic"
 320       ;;
 321     *-*-*)
 322       if test -f ${srcdir}/config/mh-${host_cpu}pic; then
 323         host_makefile_frag="${host_makefile_frag} config/mh-${host_cpu}pic"
 324       fi
 325       ;;
 326   esac
 327 fi
 328
 329 rm -f mh-frag
 330 if [ -n "${host_makefile_frag}" ] ; then
 331   for f in ${host_makefile_frag}
 332   do
 333     cat ${srcdir}/$f >> mh-frag
 334   done
 335   host_makefile_frag=mh-frag
 336 fi
 337
 338 # per-target:
 339
 340 case "${target}" in
 341   v810*)
 342     target_makefile_frag="${target_makefile_frag} config/mt-v810"
 343     ;;
 344   i[3456]86-*-netware*)
 345     target_makefile_frag="${target_makefile_frag} config/mt-netware"
 346     ;;
 347   powerpc-*-netware*)
 348     target_makefile_frag="${target_makefile_frag} config/mt-netware"
 349     ;;
 350   *-*-linux-gnu*)
 351     target_makefile_frag="${target_makefile_frag} config/mt-linux"
 352     ;;
 353   *-*-aix4.[3456789]* | *-*-aix[56789].*)
 354     target_makefile_frag="${target_makefile_frag} config/mt-aix43"
 355     ;;
 356   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
 357     target_makefile_frag="${target_makefile_frag} config/mt-wince"
 358     ;;
 359 esac
 360
 361 # If --enable-target-optspace always use -Os instead of -O2 to build
 362 # the target libraries, similarly if it is not specified, use -Os
 363 # on selected platforms.
 364 case "${enable_target_optspace}:${target}" in
 365   yes:*)
 366     target_makefile_frag="${target_makefile_frag} config/mt-ospace"
 367     ;;
 368   :d30v-*)
 369     target_makefile_frag="${target_makefile_frag} config/mt-d30v"
 370     ;;
 371   :m32r-* | :d10v-* | :fr30-*)
 372     target_makefile_frag="${target_makefile_frag} config/mt-ospace"
 373     ;;
 374   no:* | :*)
 375     ;;
 376   *)
 377     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
 378     ;;
 379 esac
 380
 381 skipdirs=
 382 gasdir=gas
 383 use_gnu_ld=
 384 use_gnu_as=
 385
 386 # some tools are so dependent upon X11 that if we're not building with X,
 387 # it's not even worth trying to configure, much less build, that tool.
 388
 389 case ${with_x} in
 390   yes | "")  # the default value for this tree is that X11 is available
 391         ;;
 392   no)
 393         skipdirs="${skipdirs} tk libgui gash"
 394         ;;
 395   *)
 396         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 397         ;;
 398 esac
 399
 400 # Some tools are only suitable for building in a "native" situation.
 401 # Those are added when we have a host==target configuration.  For cross
 402 # toolchains, we add some directories that should only be useful in a
 403 # cross-compiler.
 404
 405 is_cross_compiler=
 406
 407 if [ x"${host}" = x"${target}" ] ; then
 408         # when doing a native toolchain, don't build the targets
 409         # that are in the 'cross only' list
 410         skipdirs="${skipdirs} ${cross_only}"
 411         is_cross_compiler=no
 412 else
 413         # similarly, don't build the targets in the 'native only'
 414         # list when building a cross compiler
 415         skipdirs="${skipdirs} ${native_only}"
 416         is_cross_compiler=yes
 417 fi
 418
 419 # We always want to use the same name for this directory, so that dejagnu
 420 # can reliably find it.
 421 target_subdir=${target_alias}
 422
 423 if [ ! -d ${target_subdir} ] ; then
 424   if mkdir ${target_subdir} ; then true
 425   else
 426     echo "'*** could not make ${PWD=`pwd`}/${target_subdir}" 1>&2
 427     exit 1
 428   fi
 429 fi
 430
 431 build_subdir=${build_alias}
 432
 433 if [ x"${build_alias}" != x"${host}" ] ; then
 434   if [ ! -d ${build_subdir} ] ; then
 435     if mkdir ${build_subdir} ; then true
 436     else
 437       echo "'*** could not make ${PWD=`pwd`}/${build_subdir}" 1>&2
 438       exit 1
 439     fi
 440   fi
 441 fi
 442
 443 copy_dirs=
 444
 445 # Handle --with-headers=XXX.  The contents of the named directory are
 446 # copied to $(tooldir)/sys-include.
 447 if [ x"${with_headers}" != x ]; then
 448   if [ x${is_cross_compiler} = xno ]; then
 449     echo 1>&2 '***' --with-headers is only supported when cross compiling
 450     exit 1
 451   fi
 452   case "${exec_prefixoption}" in
 453   "") x=${prefix} ;;
 454   *) x=${exec_prefix} ;;
 455   esac
 456   copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
 457 fi
 458
 459 # Handle --with-libs=XXX.  Multiple directories are permitted.  The
 460 # contents are copied to $(tooldir)/lib.
 461 if [ x"${with_libs}" != x ]; then
 462   if [ x${is_cross_compiler} = xno ]; then
 463     echo 1>&2 '***' --with-libs is only supported when cross compiling
 464     exit 1
 465   fi
 466   # Copy the libraries in reverse order, so that files in the first named
 467   # library override files in subsequent libraries.
 468   case "${exec_prefixoption}" in
 469   "") x=${prefix} ;;
 470   *) x=${exec_prefix} ;;
 471   esac
 472   for l in ${with_libs}; do
 473     copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 474   done
 475 fi
 476
 477 # If both --with-headers and --with-libs are specified, default to
 478 # --without-newlib.
 479 if [ x"${with_headers}" != x ] && [ x"${with_libs}" != x ]; then
 480   if [ x"${with_newlib}" = x ]; then
 481     with_newlib=no
 482   fi
 483 fi
 484
 485 # Recognize --with-newlib/--without-newlib.
 486 if [ x${with_newlib} = xno ]; then
 487   skipdirs="${skipdirs} target-newlib"
 488 elif [ x${with_newlib} = xyes ]; then
 489   skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 490 fi
 491
 492 # Default to using --with-stabs for certain targets.
 493 if [ x${with_stabs} = x ]; then
 494   case "${target}" in
 495   mips*-*-irix6*)
 496     ;;
 497   mips*-*-* | alpha*-*-osf*)
 498     with_stabs=yes;
 499     withoptions="${withoptions} --with-stabs"
 500     ;;
 501   esac
 502 fi
 503
 504 # Handle ${copy_dirs}
 505 set fnord ${copy_dirs}
 506 shift
 507 while [ $# != 0 ]; do
 508   if [ -f $2/COPIED ] && [ x"`cat $2/COPIED`" = x"$1" ]; then
 509     :
 510   else
 511     echo Copying $1 to $2
 512
 513     # Use the install script to create the directory and all required
 514     # parent directories.
 515     if [ -d $2 ]; then
 516       :
 517     else
 518       echo >config.temp
 519       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
 520     fi
 521
 522     # Copy the directory, assuming we have tar.
 523     # FIXME: Should we use B in the second tar?  Not all systems support it.
 524     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 525
 526     # It is the responsibility of the user to correctly adjust all
 527     # symlinks.  If somebody can figure out how to handle them correctly
 528     # here, feel free to add the code.
 529
 530     echo $1 > $2/COPIED
 531   fi
 532   shift; shift
 533 done
 534
 535 # Configure extra directories which are host specific
 536
 537 case "${host}" in
 538         i[3456]86-*-go32*)
 539           configdirs="$configdirs dosrel" ;;
 540         i[3456]86-*-mingw32*)
 541           configdirs="$configdirs dosrel" ;;
 542         *-cygwin*)
 543           configdirs="$configdirs libtermcap dosrel" ;;
 544 esac
 545
 546 # Remove more programs from consideration, based on the host or
 547 # target this usually means that a port of the program doesn't
 548 # exist yet.
 549
 550 noconfigdirs=""
 551
 552 case "${host}" in
 553   i[3456]86-*-vsta)
 554     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"
 555     ;;
 556   i[3456]86-*-go32* | i[3456]86-*-msdosdjgpp*)
 557     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"
 558         ;;
 559   i[3456]86-*-mingw32*)
 560     # 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"
 561      noconfigdirs="expect dejagnu cvs autoconf automake send-pr rcs guile perl texinfo apache inet libtool"
 562         ;;
 563   i[3456]86-*-beos*)
 564      noconfigdirs="$noconfigdirs tk itcl tix libgui gdb"
 565      ;;
 566   *-*-cygwin*)
 567      noconfigdirs="autoconf automake send-pr rcs guile perl apache inet"
 568     ;;
 569   *-*-netbsd*)
 570     noconfigdirs="rcs"
 571     ;;
 572   ppc*-*-pe)
 573      noconfigdirs="patch diff make tk tcl expect dejagnu cvssrc autoconf automake texinfo bison send-pr gprof rcs guile perl apache inet itcl tix db snavigator gnuserv"
 574     ;;
 575   powerpc-*-beos*)
 576     noconfigdirs="$noconfigdirs tk itcl tix libgui gdb dejagnu readline"
 577     ;;
 578 esac
 579
 580
 581 # Save it here so that, even in case of --enable-libgcj, if the Java
 582 # front-end isn't enabled, we still get libgcj disabled.
 583 libgcj_saved=$libgcj
 584 case $enable_libgcj in
 585 yes)
 586   # If we reset it here, it won't get added to noconfigdirs in the
 587   # target-specific build rules, so it will be forcibly enabled
 588   # (unless the Java language itself isn't enabled).
 589   libgcj=
 590   ;;
 591 no)
 592   # Make sure we get it printed in the list of not supported target libs.
 593   noconfigdirs="$noconfigdirs ${libgcj}"
 594   ;;
 595 esac
 596
 597 case "${target}" in
 598   *-*-netbsd*)
 599     # Skip some stuff on all NetBSD configurations.
 600     skipdirs="$skipdirs target-newlib target-libiberty target-libgloss"
 601
 602     # Skip some stuff that's unsupported on some NetBSD configurations.
 603     case "${target}" in
 604       *)
 605         noconfigdirs="$noconfigdirs ${libgcj}"
 606         ;;
 607     esac
 608     ;;
 609   *-*-netware)
 610     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-newlib target-libiberty target-libgloss target-libffi"
 611     ;;
 612   *-*-rtems*)
 613     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 614     ;;
 615   *-*-vxworks*)
 616     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libffi"
 617     ;;
 618   alpha*-dec-osf*)
 619     # ld works, but does not support shared libraries.  emacs doesn't
 620     # work.  newlib is not 64 bit ready.  I'm not sure about fileutils.
 621     # gas doesn't generate exception information.
 622     noconfigdirs="$noconfigdirs gas ld emacs fileutils target-newlib target-libgloss"
 623     ;;
 624   alpha*-*-*vms*)
 625     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss target-libffi"
 626     ;;
 627   alpha*-*-*)
 628     # newlib is not 64 bit ready
 629     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 630     ;;
 631   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 632     noconfigdirs="$noconfigdirs target-libjava target-libffi target-zlib"
 633     noconfigdirs="$noconfigdirs target-boehm-gc target-qthreads target-examples"
 634     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 635     noconfigdirs="$noconfigdirs tcl tix tk itcl libgui sim"
 636     noconfigdirs="$noconfigdirs expect dejagnu"
 637     # the C++ libraries don't build on top of CE's C libraries
 638     noconfigdirs="$noconfigdirs ${libstdcxx_version}"
 639     skipdirs="$skipdirs target-newlib"
 640     case "${host}" in
 641       *-*-cygwin*) ;; # keep gdb and readline
 642       *) noconfigdirs="$noconfigdirs gdb readline ${libstdcxx_version}"
 643          ;;
 644     esac
 645     ;;
 646   arc-*-*)
 647     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 648     ;;
 649   arm-*-pe*)
 650     noconfigdirs="$noconfigdirs target-libgloss"
 651     ;;
 652   arm-*-oabi*)
 653     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 654     ;;
 655   thumb-*-coff)
 656     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 657     ;;
 658   thumb-*-elf)
 659     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 660     ;;
 661   thumb-*-oabi)
 662     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 663     ;;
 664   strongarm-*-elf)
 665     noconfigdirs="$noconfigdirs target-libffi"
 666     if [ x${is_cross_compiler} != xno ] ; then
 667            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 668     fi
 669     ;;
 670   strongarm-*-coff)
 671     noconfigdirs="$noconfigdirs target-libffi"
 672     if [ x${is_cross_compiler} != xno ] ; then
 673            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 674     fi
 675     ;;
 676   xscale-*-elf)
 677     noconfigdirs="$noconfigdirs target-libffi"
 678     if [ x${is_cross_compiler} != xno ] ; then
 679            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 680     fi
 681     ;;
 682   xscale-*-coff)
 683     noconfigdirs="$noconfigdirs target-libffi"
 684     if [ x${is_cross_compiler} != xno ] ; then
 685            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 686     fi
 687     ;;
 688   thumb-*-pe)
 689     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 690     ;;
 691   arm-*-riscix*)
 692     noconfigdirs="$noconfigdirs ld target-libgloss target-libffi"
 693     ;;
 694   c4x-*-*)
 695     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi"
 696     ;;
 697   c54x*-*-* | tic54x-*-*)
 698     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi gcc gdb newlib"
 699     ;;
 700   d10v-*-*)
 701     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi"
 702     ;;
 703   d30v-*-*)
 704     ;;
 705   fr30-*-elf*)
 706     if [ x${is_cross_compiler} != xno ] ; then
 707            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 708     fi
 709     ;;
 710   h8300*-*-*)
 711     noconfigdirs="$noconfigdirs target-libgloss"
 712     ;;
 713   h8500-*-*)
 714     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi"
 715     ;;
 716   hppa*-*-*elf* | \
 717   hppa*-*-linux-gnu* | \
 718   hppa*-*-lites* | \
 719   hppa*64*-*-*)
 720     # Do configure ld/binutils/gas for this case.
 721     ;;
 722   hppa*-*-*)
 723     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 724     # cc is gcc, and on any system a user should be able to link cc to
 725     # whatever they want.  FIXME, emacs emacs19).
 726     case "${CC}" in
 727         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 728         *) ;;
 729     esac
 730     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 731     # build on HP-UX 10.20.
 732     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 733     ;;
 734   ia64*-*-elf*)
 735     # No gdb support yet.
 736     noconfigdirs="$noconfigdirs tix readline mmalloc libgui itcl gdb"
 737     ;;
 738   ia64*-**-hpux*)
 739     # No gdb or ld support yet.
 740     noconfigdirs="$noconfigdirs tix readline mmalloc libgui itcl gdb ld"
 741     ;;
 742   i[3456]86-*-coff | i[3456]86-*-elf)
 743     if [ x${is_cross_compiler} != xno ] ; then
 744          target_configdirs="${target_configdirs} target-libstub target-cygmon"
 745     fi
 746     ;;
 747   i[3456]86-*-go32* | i[3456]-*-msdosdjgpp*)
 748     # but don't build gdb
 749     noconfigdirs="$noconfigdirs gdb ${libstdcxx_version} target-libffi"
 750     ;;
 751   i[3456]86-*-mingw32*)
 752     target_configdirs="$target_configdirs target-mingw"
 753     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 754
 755     # Can't build gdb for mingw32 if not native.
 756     case "${host}" in
 757       i[3456]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 758       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix db snavigator gnuserv"
 759          ;;
 760     esac
 761     ;;
 762   *-*-cygwin*)
 763     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 764     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 765     # always build newlib.
 766     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 767
 768     # Can't build gdb for Cygwin if not native.
 769     case "${host}" in
 770       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 771       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix libgui db snavigator gnuserv"
 772          ;;
 773     esac
 774     ;;
 775   i[3456]86-*-pe)
 776     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi"
 777     ;;
 778   i[3456]86-*-sco3.2v5*)
 779     # The linker does not yet know about weak symbols in COFF,
 780     # and is not configured to handle mixed ELF and COFF.
 781     noconfigdirs="$noconfigdirs ld target-libgloss target-libffi"
 782     ;;
 783   i[3456]86-*-sco*)
 784     noconfigdirs="$noconfigdirs gprof target-libgloss target-libffi"
 785     ;;
 786   i[3456]86-*-solaris2*)
 787     noconfigdirs="$noconfigdirs target-libgloss"
 788     ;;
 789   i[3456]86-*-sysv4*)
 790     # The SYSV4 C compiler doesn't handle Emacs correctly
 791     case "${CC}" in
 792         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 793         *) ;;
 794     esac
 795     # but that's okay since emacs doesn't work anyway
 796     noconfigdirs="$noconfigdirs emacs emacs19 target-libgloss target-libffi"
 797     ;;
 798   i[3456]86-*-beos*)
 799      noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 800      ;;
 801  m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 802     noconfigdirs="$noconfigdirs target-libiberty target-librx target-libg++ target-libstdc++ target-libio target-libf2c target-libchill target-zlib target-libobjc"
 803     ;;
 804  m68k-*-elf*)
 805     if [ x${is_cross_compiler} != xno ] ; then
 806            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 807     fi
 808     ;;
 809   m68k-*-coff*)
 810     if [ x${is_cross_compiler} != xno ] ; then
 811            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 812     fi
 813     ;;
 814   mn10200-*-*)
 815     noconfigdirs="$noconfigdirs target-libffi"
 816     if [ x${is_cross_compiler} != xno ] ; then
 817            target_configdirs="${target_configdirs} target-libstub target-cygmon"
 818     fi
 819     ;;
 820   mn10300-*-*)
 821     noconfigdirs="$noconfigdirs target-libffi"
 822     if [ x${is_cross_compiler} != xno ] ; then
 823            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 824     fi
 825     ;;
 826   powerpc-*-aix*)
 827     # copied from rs6000-*-* entry
 828     use_gnu_ld=yes
 829     ;;
 830   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 831     target_configdirs="$target_configdirs target-winsup"
 832     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl tix db snavigator gnuserv target-libffi"
 833     # always build newlib.
 834     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 835     ;;
 836     # This is temporary until we can link against shared libraries
 837   powerpcle-*-solaris*)
 838     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl tix db snavigator gnuserv target-libffi"
 839     ;;
 840   powerpc-*-beos*)
 841     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 842     ;;
 843   powerpc-*-eabi)
 844     if [ x${is_cross_compiler} != xno ] ; then
 845            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 846     fi
 847     ;;
 848   rs6000-*-lynxos*)
 849     # The CVS server code doesn't work on the RS/6000
 850     noconfigdirs="$noconfigdirs target-newlib gprof cvssrc target-libffi"
 851     ;;
 852   rs6000-*-aix*)
 853     noconfigdirs="$noconfigdirs gprof target-libffi"
 854     use_gnu_ld=yes
 855     ;;
 856   rs6000-*-*)
 857     noconfigdirs="$noconfigdirs gprof target-libffi"
 858     ;;
 859   m68k-apollo-*)
 860     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss target-libffi"
 861     ;;
 862   mips*-*-irix5*)
 863     # The GNU linker does not support shared libraries.
 864     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 865     noconfigdirs="$noconfigdirs ld gprof emacs target-libgloss"
 866     ;;
 867   mips*-*-irix6*)
 868     # The GNU assembler does not support IRIX 6.
 869     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 870     # Linking libjava exceeds command-line length limits on at least
 871     # IRIX 6.2, but not on IRIX 6.5.
 872     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 873     # <oldham@codesourcery.com>
 874     noconfigdirs="$noconfigdirs gas gprof emacs target-libgloss ${libgcj}"
 875     ;;
 876   mips*-dec-bsd*)
 877     noconfigdirs="$noconfigdirs gprof target-libgloss target-libffi"
 878     ;;
 879   mips*-*-bsd*)
 880     noconfigdirs="$noconfigdirs gprof target-libgloss target-libffi"
 881     ;;
 882   mipstx39-*-*)
 883     noconfigdirs="$noconfigdirs gprof target-libffi"   # same as generic mips
 884     target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 885    ;;
 886   mips*-*-linux*)
 887     noconfigdirs="$noconfigdirs target-libffi"
 888     ;;
 889   mips*-*-*)
 890     noconfigdirs="$noconfigdirs gprof target-libffi"
 891     ;;
 892   romp-*-*)
 893     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss target-libffi"
 894     ;;
 895   sh-*-*)
 896     case "${host}" in
 897       i[3456]86-*-vsta) ;; # don't add gprof back in
 898       i[3456]86-*-go32*) ;; # don't add gprof back in
 899       i[3456]86-*-msdosdjgpp*) ;; # don't add gprof back in
 900       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 901     esac
 902     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 903     ;;
 904   sh64-*-*)
 905     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 906     ;;
 907   sparc-*-elf*)
 908     if [ x${is_cross_compiler} != xno ] ; then
 909            target_configdirs="${target_configdirs} target-libstub target-cygmon"
 910     fi
 911     ;;
 912   sparc64-*-elf*)
 913     if [ x${is_cross_compiler} != xno ] ; then
 914            target_configdirs="${target_configdirs} target-libstub target-cygmon"
 915     fi
 916     noconfigdirs="$noconfigdirs target-libffi"
 917     ;;
 918   sparclite-*-*)
 919     if [ x${is_cross_compiler} != xno ] ; then
 920            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 921     fi
 922     noconfigdirs="$noconfigdirs target-libffi"
 923     ;;
 924   sparc-*-sunos4*)
 925     if [ x${is_cross_compiler} != xno ] ; then
 926            noconfigdirs="$noconfigdirs gdb gdbtest target-newlib target-libgloss"
 927     else
 928            use_gnu_ld=no
 929     fi
 930     ;;
 931   sparc-*-solaris*)
 932     case "${host}" in
 933     sparc-*-solaris2.8)
 934       # According to Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, libjava
 935       # won't build correctly on Solaris 8 if there's a
 936       # previously-installed version of GCC in the configured prefix.
 937       # This problem does not show up on earlier versions of Solaris.
 938       noconfigdirs="$noconfigdirs ${libgcj}"
 939       ;;
 940     esac
 941     ;;
 942   v810-*-*)
 943     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld ${libstdcxx_version} opcodes target-libgloss target-libffi"
 944     ;;
 945   v850-*-*)
 946     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 947     ;;
 948   v850e-*-*)
 949     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 950     ;;
 951   v850ea-*-*)
 952     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 953     ;;
 954   vax-*-vms)
 955     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss target-libffi"
 956     ;;
 957   vax-*-*)
 958     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libffi"
 959     ;;
 960   *-*-lynxos*)
 961     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libffi"
 962     ;;
 963   *-*-macos* | \
 964   *-*-mpw*)
 965     # Macs want a resource compiler.
 966     configdirs="$configdirs grez"
 967     noconfigdirs="$noconfigdirs target-libffi"
 968     ;;
 969 esac
 970
 971 # If we aren't building newlib, then don't build libgloss, since libgloss
 972 # depends upon some newlib header files.
 973 case "${noconfigdirs}" in
 974   *target-libgloss*) ;;
 975   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 976 esac
 977
 978 # Make sure we don't let GNU ld be added if we didn't want it.
 979 if [ x$with_gnu_ld = xno ]; then
 980   use_gnu_ld=no
 981   noconfigdirs="$noconfigdirs ld"
 982 fi
 983
 984 # Make sure we don't let GNU as be added if we didn't want it.
 985 if [ x$with_gnu_as = xno ]; then
 986   use_gnu_as=no
 987   noconfigdirs="$noconfigdirs gas"
 988 fi
 989
 990 # Figure out what language subdirectories are present.
 991 # Look if the user specified --enable-languages="..."; if not, use
 992 # the environment variable $LANGUAGES if defined. $LANGUAGES might
 993 # go away some day.
 994 # NB:  embedded tabs in this IF block -- do not untabify
 995 if test x"${enable_languages+set}" != xset; then
 996         if test x"${LANGUAGES+set}" = xset; then
 997                 enable_languages="${LANGUAGES}"
 998                 echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
 999         else
1000                 enable_languages=all
1001         fi
1002 else
1003         if test x"${enable_languages}" = x ||
1004            test x"${enable_languages}" = xyes;
1005         then
1006                 echo configure.in: --enable-languages needs at least one language argument 1>&2
1007                 exit 1
1008         fi
1009 fi
1010 enable_languages=`echo "${enable_languages}" | sed -e 's/[      ,][     ,]*/,/g' -e 's/,$//'`
1011
1012 subdirs=
1013 for lang in ${srcdir}/gcc/*/config-lang.in ..
1014 do
1015         case $lang in
1016         ..) ;;
1017         # The odd quoting in the next line works around
1018         # an apparent bug in bash 1.12 on linux.
1019         ${srcdir}/gcc/[*]/config-lang.in) ;;
1020         *)
1021           lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^   ]*\).*$,\1,p' $lang`
1022           this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^         ]*\).*$,\1,p' $lang`
1023           build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^     ]*\).*$,\1,p' $lang`
1024           if test "x$lang_alias" = x
1025           then
1026                 echo "$lang doesn't set \$language." 1>&2
1027                 exit 1
1028           fi
1029           case ${build_by_default},${enable_languages}, in
1030           *,$lang_alias,*) add_this_lang=yes ;;
1031           no,*) add_this_lang=no ;;
1032           *,all,*) add_this_lang=yes ;;
1033           *) add_this_lang=no ;;
1034           esac
1035           if test x"${add_this_lang}" = xyes; then
1036               eval target_libs='"$target_libs "'\"$this_lang_libs\"
1037           else
1038               eval noconfigdirs='"$noconfigdirs "'\"$this_lang_libs\"
1039           fi
1040           ;;
1041         esac
1042 done
1043
1044
1045 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
1046 # $target_configdirs.
1047 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1048
1049 notsupp=""
1050 for dir in . $skipdirs $noconfigdirs ; do
1051   dirname=`echo $dir | sed -e s/target-//g`
1052   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1053     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1054     if [ -r $srcdir/$dirname/configure ] \
1055         || [ -r $srcdir/$dirname/configure.in ]; then
1056       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1057         true
1058       else
1059         notsupp="$notsupp $dir"
1060       fi
1061     fi
1062   fi
1063   if [ $dir != . ]  && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1064     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1065     if [ -r $srcdir/$dirname/configure ] \
1066         || [ -r $srcdir/$dirname/configure.in ]; then
1067       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1068         true
1069       else
1070         notsupp="$notsupp $dir"
1071       fi
1072     fi
1073   fi
1074 done
1075
1076 # Sometimes the tools are distributed with libiberty but with no other
1077 # libraries.  In that case, we don't want to build target-libiberty.
1078 if [ -n "${target_configdirs}" ]; then
1079   others=
1080   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1081     if [ "$i" != "libiberty" ]; then
1082       if [ -r $srcdir/$i/configure ] || [ -r $srcdir/$i/configure.in ]; then
1083         others=yes;
1084         break;
1085       fi
1086     fi
1087   done
1088   if [ -z "${others}" ]; then
1089     target_configdirs=
1090   fi
1091 fi
1092
1093 # Deconfigure all subdirectories, in case we are changing the
1094 # configuration from one where a subdirectory is supported to one where it
1095 # is not.
1096 if [ -z "${norecursion}" ] && [ -n "${configdirs}" ]; then
1097   for i in `echo ${configdirs} | sed -e s/target-//g` ; do
1098     rm -f $i/Makefile
1099   done
1100 fi
1101 if [ -z "${norecursion}" ] && [ -n "${target_configdirs}" ]; then
1102   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1103     rm -f ${target_subdir}/$i/Makefile
1104   done
1105 fi
1106
1107 # Produce a warning message for the subdirs we can't configure.
1108 # This isn't especially interesting in the Cygnus tree, but in the individual
1109 # FSF releases, it's important to let people know when their machine isn't
1110 # supported by the one or two programs in a package.
1111
1112 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
1113   # If $appdirs is non-empty, at least one of those directories must still
1114   # be configured, or we error out.  (E.g., if the gas release supports a
1115   # specified target in some subdirs but not the gas subdir, we shouldn't
1116   # pretend that all is well.)
1117   if [ -n "$appdirs" ]; then
1118     for dir in $appdirs ; do
1119       if [ -r $dir/Makefile.in ]; then
1120         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1121           appdirs=""
1122           break
1123         fi
1124         if echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1125           appdirs=""
1126           break
1127         fi
1128       fi
1129     done
1130     if [ -n "$appdirs" ]; then
1131       echo "*** This configuration is not supported by this package." 1>&2
1132       exit 1
1133     fi
1134   fi
1135   # Okay, some application will build, or we don't care to check.  Still
1136   # notify of subdirs not getting built.
1137   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1138   echo "    ${notsupp}" 1>&2
1139   echo "    (Any other directories should still work fine.)" 1>&2
1140 fi
1141
1142 # Set with_gnu_as and with_gnu_ld as appropriate.
1143 #
1144 # This is done by determining whether or not the appropriate directory
1145 # is available, and by checking whether or not specific configurations
1146 # have requested that this magic not happen.
1147 #
1148 # The command line options always override the explicit settings in
1149 # configure.in, and the settings in configure.in override this magic.
1150 #
1151 # If the default for a toolchain is to use GNU as and ld, and you don't
1152 # want to do that, then you should use the --without-gnu-as and
1153 # --without-gnu-ld options for the configure script.
1154
1155 if [ x${use_gnu_as} = x ] ; then
1156   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
1157     with_gnu_as=yes
1158     withoptions="$withoptions --with-gnu-as"
1159   fi
1160 fi
1161
1162 if [ x${use_gnu_ld} = x ] ; then
1163   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
1164     with_gnu_ld=yes
1165     withoptions="$withoptions --with-gnu-ld"
1166   fi
1167 fi
1168
1169 # If using newlib, add --with-newlib to the withoptions so that gcc/configure
1170 # can detect this case.
1171
1172 if [ x${with_newlib} != xno ] && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 && [ -d ${srcdir}/newlib ] ; then
1173   with_newlib=yes
1174   withoptions="$withoptions --with-newlib"
1175 fi
1176
1177 if [ x${shared} = xyes ]; then
1178   case "${target}" in
1179     hppa*)
1180       target_makefile_frag="${target_makefile_frag} config/mt-papic"
1181       ;;
1182     i[3456]86-*)
1183       target_makefile_frag="${target_makefile_frag} config/mt-x86pic"
1184       ;;
1185     ia64-*)
1186       target_makefile_frag="${target_makefile_frag} config/mt-ia64pic"
1187       ;;
1188     powerpc*-*-aix*)
1189       # We don't want -fPIC on AIX.
1190       ;;
1191     powerpc*-*)
1192       target_makefile_frag="${target_makefile_frag} config/mt-ppcpic"
1193       ;;
1194     alpha*-*-linux*)
1195       target_makefile_frag="${target_makefile_frag} config/mt-elfalphapic"
1196       ;;
1197     *)
1198       if test -f ${srcdir}/config/mt-${target_cpu}pic; then
1199         target_makefile_frag="${target_makefile_frag} config/mt-${target_cpu}pic"
1200       fi
1201       ;;
1202   esac
1203 fi
1204
1205 rm -f mt-frag
1206 if [ -n "${target_makefile_frag}" ] ; then
1207   for f in ${target_makefile_frag}
1208   do
1209     cat ${srcdir}/$f >> mt-frag
1210   done
1211   target_makefile_frag=mt-frag
1212 fi
1213
1214 # post-target:
1215
1216 # Make sure that the compiler is able to generate an executable.  If it
1217 # can't, we are probably in trouble.  We don't care whether we can run the
1218 # executable--we might be using a cross compiler--we only care whether it
1219 # can be created.  At this point the main configure script has set CC.
1220 echo "int main () { return 0; }" > conftest.c
1221 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1222 if [ $? = 0 ] && [ -s conftest -o -s conftest.exe ]; then
1223   :
1224 else
1225   echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1226   echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1227   rm -f conftest*
1228   exit 1
1229 fi
1230 rm -f conftest*
1231
1232 # The Solaris /usr/ucb/cc compiler does not appear to work.
1233 case "${host}" in
1234   sparc-sun-solaris2*)
1235       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1236       if [ "`type $CCBASE | sed 's/^[^/]*//'`" = "/usr/ucb/cc" ] ; then
1237           could_use=
1238           [ -d /opt/SUNWspro/bin ] && could_use="/opt/SUNWspro/bin"
1239           if [ -d /opt/cygnus/bin ] ; then
1240               if [ "$could_use" = "" ] ; then
1241                   could_use="/opt/cygnus/bin"
1242               else
1243                   could_use="$could_use or /opt/cygnus/bin"
1244               fi
1245           fi
1246         if [ "$could_use" = "" ] ; then
1247             echo "Warning: compilation may fail because you're using"
1248             echo "/usr/ucb/cc.  You should change your PATH or CC "
1249             echo "variable and rerun configure."
1250         else
1251             echo "Warning: compilation may fail because you're using"
1252             echo "/usr/ucb/cc, when you should use the C compiler from"
1253             echo "$could_use.  You should change your"
1254             echo "PATH or CC variable and rerun configure."
1255         fi
1256       fi
1257   ;;
1258 esac
1259
1260 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
1261 # binutils tools will find libbfd.so.
1262 if [ "${shared}" = "yes" ]; then
1263   sed -e 's/^SET_LIB_PATH[      ]*=.*$/SET_LIB_PATH = $(REALLY_SET_LIB_PATH)/' \
1264       Makefile > Makefile.tem
1265   rm -f Makefile
1266   mv -f Makefile.tem Makefile
1267
1268   case "${host}" in
1269   *-*-hpux*)
1270     sed -e 's/^RPATH_ENVVAR[    ]*=.*$/RPATH_ENVVAR = SHLIB_PATH/' \
1271         Makefile > Makefile.tem
1272     rm -f Makefile
1273     mv -f Makefile.tem Makefile
1274     ;;
1275   esac
1276 fi
1277
1278 # Record target_configdirs and the configure arguments for target and
1279 # build configuration in Makefile.
1280 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1281 targargs=`echo "${arguments}" | \
1282         sed -e 's/--no[^        ]*//' \
1283             -e 's/--cache[a-z-]*=[^     ]*//' \
1284             -e 's/--ho[a-z-]*=[^        ]*//' \
1285             -e 's/--bu[a-z-]*=[^        ]*//' \
1286             -e 's/--ta[a-z-]*=[^        ]*//'`
1287
1288 # For the build-side libraries, we just need to pretend we're native,
1289 # and not use the same cache file.  Multilibs are neither needed nor
1290 # desired.
1291 buildargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} ${targargs}"
1292
1293 # Passing a --with-cross-host argument lets the target libraries know
1294 # whether they are being built with a cross-compiler or being built
1295 # native.  However, it would be better to use other mechanisms to make the
1296 # sorts of decisions they want to make on this basis.  Please consider
1297 # this option to be deprecated.  FIXME.
1298 if [ x${is_cross_compiler} = xyes ]; then
1299   targargs="--with-cross-host=${host_alias} ${targargs}"
1300 fi
1301
1302 # Default to --enable-multilib.
1303 if [ x${enable_multilib} = x ]; then
1304   targargs="--enable-multilib ${targargs}"
1305 fi
1306
1307 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1308 # changed from the earlier setting of with_newlib.
1309 if [ x${with_newlib} != xno ] && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && [ -d ${srcdir}/newlib ] ; then
1310   targargs="--with-newlib ${targargs}"
1311 fi
1312
1313 # Pass the appropriate --host, --build, and --cache-file arguments.
1314 targargs="--cache-file=../config.cache --host=${target_alias} --build=${build_alias} ${targargs}"
1315
1316 # provide a proper gxx_include_dir.
1317 # Note, if you change the default, make sure to fix both here and in
1318 # the gcc, libio, and libstdc++ subdirectories.
1319 # Check whether --with-gxx-include-dir or --without-gxx-include-dir was given.
1320 gxx_include_dir=
1321 if test -n "${with_gxx_include_dir}"; then
1322   case "${with_gxx_include_dir}" in
1323     yes )
1324       echo "configure.in: error: bad value ${withval} given for g++ include directory" 1>&2
1325       exit 1
1326       ;;
1327     no )
1328       ;;
1329     * )
1330       gxx_include_dir=${with_gxx_include_dir}
1331       ;;
1332   esac
1333 fi
1334 if test x${gxx_include_dir} = x; then
1335   if test x${enable_version_specific_runtime_libs} = xyes; then
1336     gxx_include_dir='${libsubdir}/include/g++'
1337   else
1338     . ${topsrcdir}/config.if
1339     gxx_include_dir='${prefix}/include/g++'-${libstdcxx_interface}
1340   fi
1341 else
1342   gxx_include_dir=${gxx_include_dir}
1343 fi
1344
1345 FLAGS_FOR_TARGET=
1346 case " $skipdirs " in
1347 *" target-newlib "*) ;;
1348 *)
1349    case "$target" in
1350    *-cygwin*)
1351      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' ;;
1352    esac
1353
1354    # If we're not building GCC, don't discard standard headers.
1355    if test -d ${topsrcdir}/gcc; then
1356      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1357
1358      if test "${build}" != "${host}"; then
1359        # On Canadian crosses, CC_FOR_TARGET will have already been set
1360        # by `configure', so we won't have an opportunity to add -Bgcc/
1361        # to it.  This is right: we don't want to search that directory
1362        # for binaries, but we want the header files in there, so add
1363        # them explicitly.
1364        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/gcc/include'
1365
1366        # Someone might think of using the pre-installed headers on
1367        # Canadian crosses, in case the installed compiler is not fully
1368        # compatible with the compiler being built.  In this case, it
1369        # would be better to flag an error than risking having
1370        # incompatible object files being constructed.  We can't
1371        # guarantee that an error will be flagged, but let's hope the
1372        # compiler will do it, when presented with incompatible header
1373        # files.
1374      fi
1375    fi
1376
1377    case "${target}-${is_cross_compiler}" in
1378    i[3456]86-pc-linux*-no)
1379       # Here host == target, so we don't need to build gcc,
1380       # so we don't want to discard standard headers.
1381       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
1382       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/'
1383       ;;
1384    *)
1385       # If we're building newlib, use its generic headers last, but search
1386       # for any libc-related directories first (so make it the last -B
1387       # switch).
1388       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
1389       ;;
1390    esac
1391    ;;
1392 esac
1393
1394 # On Canadian crosses, we'll be searching the right directories for
1395 # the previously-installed cross compiler, so don't bother to add
1396 # flags for directories within the install tree of the compiler
1397 # being built; programs in there won't even run.
1398 if test "${build}" = "${host}" && test -d ${topsrcdir}/gcc; then
1399   # Search for pre-installed headers if nothing else fits.
1400   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include'
1401 fi
1402
1403 if test "x${use_gnu_ld}" = x && test "x${with_gnu_ld}" != xno &&
1404    echo " ${configdirs} " | grep " ld " > /dev/null &&
1405    test -d ${srcdir}/ld; then
1406   # Arrange for us to find uninstalled linker scripts.
1407   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/ld'
1408 fi
1409
1410 if test "x${CC_FOR_TARGET+set}" = xset; then
1411   :
1412 elif test -d ${topsrcdir}/gcc; then
1413   CC_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/'
1414 elif test "$host" = "$target"; then
1415   CC_FOR_TARGET='$(CC)'
1416 else
1417   CC_FOR_TARGET=`echo gcc | sed -e 's/x/x/' ${program_transform_name}`
1418 fi
1419 # On Canadian crosses, configure reads CC_FOR_TARGET from Makefile,
1420 # if Makefile exists.  Prevent $(FLAGS_FOR_TARGET) from being duplicated.
1421 case $CC_FOR_TARGET in
1422 *' $(FLAGS_FOR_TARGET)') ;;
1423 *) CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
1424 esac
1425
1426 if test "x${CHILL_FOR_TARGET+set}" = xset; then
1427   :
1428 elif test -d ${topsrcdir}/gcc; then
1429   CHILL_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/ -L$$r/gcc/ch/runtime/'
1430 elif test "$host" = "$target"; then
1431   CHILL_FOR_TARGET='$(CC)'
1432 else
1433   CHILL_FOR_TARGET=`echo gcc | sed -e 's/x/x/' ${program_transform_name}`
1434 fi
1435 case $CHILL_FOR_TARGET in
1436 *' $(FLAGS_FOR_TARGET)') ;;
1437 *) CHILL_FOR_TARGET=$CHILL_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
1438 esac
1439
1440 if test "x${CXX_FOR_TARGET+set}" = xset; then
1441   :
1442 elif test -d ${topsrcdir}/gcc; then
1443   # We add -shared-libgcc to CXX_FOR_TARGET whenever we use xgcc instead
1444   # of g++ for linking C++ or Java, because g++ has -shared-libgcc by
1445   # default whereas gcc does not.
1446   CXX_FOR_TARGET='$$r/gcc/`case $$dir in libstdc++-v3 | libjava) echo xgcc -shared-libgcc ;; *) echo g++ ;; esac` -B$$r/gcc/ -nostdinc++ '$libstdcxx_flags
1447 elif test "$host" = "$target"; then
1448   CXX_FOR_TARGET='$(CXX)'
1449 else
1450   CXX_FOR_TARGET=`echo c++ | sed -e 's/x/x/' ${program_transform_name}`
1451 fi
1452 case $CXX_FOR_TARGET in
1453 *' $(FLAGS_FOR_TARGET)') ;;
1454 *) CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
1455 esac
1456 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,[&%],\\\&,g'`
1457
1458 # We want to defer the evaluation of `cmd`s and shell variables in
1459 # CXX_FOR_TARGET when recursing in the top-level Makefile, such as for
1460 # bootstrap.  We'll enclose CXX_FOR_TARGET_FOR_RECURSIVE_MAKE in single
1461 # quotes, but we still have to duplicate `$'s so that shell variables
1462 # can be expanded by the nested make as shell variables, not as make
1463 # macros.
1464 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[$][$],$$$$,g'`
1465
1466 sed -e "s:^TARGET_CONFIGDIRS[   ]*=.*$:TARGET_CONFIGDIRS = ${target_configdirs}:" \
1467     -e "s%^TARGET_CONFIGARGS[   ]*=.*$%TARGET_CONFIGARGS = ${targargs}%" \
1468     -e "s%^FLAGS_FOR_TARGET[    ]*=.*$%FLAGS_FOR_TARGET = ${FLAGS_FOR_TARGET}%" \
1469     -e "s%^CC_FOR_TARGET[       ]*=.*$%CC_FOR_TARGET = ${CC_FOR_TARGET}%" \
1470     -e "s%^CHILL_FOR_TARGET[    ]*=.*$%CHILL_FOR_TARGET = ${CHILL_FOR_TARGET}%" \
1471     -e "s%^CXX_FOR_TARGET[      ]*=.*$%CXX_FOR_TARGET = ${qCXX_FOR_TARGET}%" \
1472     -e "s%^CXX_FOR_TARGET_FOR_RECURSIVE_MAKE[   ]*=.*$%CXX_FOR_TARGET_FOR_RECURSIVE_MAKE = ${qqCXX_FOR_TARGET}%" \
1473     -e "s%^TARGET_SUBDIR[       ]*=.*$%TARGET_SUBDIR = ${target_subdir}%" \
1474     -e "s%^BUILD_SUBDIR[        ]*=.*$%BUILD_SUBDIR = ${build_subdir}%" \
1475     -e "s%^BUILD_CONFIGARGS[    ]*=.*$%BUILD_CONFIGARGS = ${buildargs}%" \
1476     -e "s%^gxx_include_dir[     ]*=.*$%gxx_include_dir=${gxx_include_dir}%" \
1477        Makefile > Makefile.tem
1478 rm -f Makefile
1479 mv -f Makefile.tem Makefile
1480
1481 #
1482 # Local Variables:
1483 # fill-column: 131
1484 # End:
1485 #