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="${target_configdirs} target-bsp target-libstub target-cygmon"
 703     fi
 704     ;;
 705   h8300*-*-* | \
 706   h8500-*-*)
 707     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi"
 708     ;;
 709   hppa*-*-*elf* | \
 710   hppa*-*-linux-gnu* | \
 711   hppa*-*-lites* | \
 712   hppa*64*-*-*)
 713     # Do configure ld/binutils/gas for this case.
 714     ;;
 715   hppa*-*-*)
 716     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 717     # cc is gcc, and on any system a user should be able to link cc to
 718     # whatever they want.  FIXME, emacs emacs19).
 719     case "${CC}" in
 720         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 721         *) ;;
 722     esac
 723     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 724     # build on HP-UX 10.20.
 725     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 726     ;;
 727   ia64*-*-elf*)
 728     # No gdb support yet.
 729     noconfigdirs="$noconfigdirs tix readline mmalloc libgui itcl gdb"
 730     ;;
 731   i[3456]86-*-coff | i[3456]86-*-elf)
 732     if [ x${is_cross_compiler} != xno ] ; then
 733          target_configdirs="${target_configdirs} target-libstub target-cygmon"
 734     fi
 735     ;;
 736   i[3456]86-*-go32* | i[3456]-*-msdosdjgpp*)
 737     # but don't build gdb
 738     noconfigdirs="$noconfigdirs gdb ${libstdcxx_version} target-libffi"
 739     ;;
 740   i[3456]86-*-mingw32*)
 741     target_configdirs="$target_configdirs target-mingw"
 742     noconfigdirs="$noconfigdirs expect target-libgloss target-libffi"
 743
 744     # Can't build gdb for mingw32 if not native.
 745     case "${host}" in
 746       i[3456]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 747       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix db snavigator gnuserv"
 748          ;;
 749     esac
 750     ;;
 751   *-*-cygwin*)
 752     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 753     noconfigdirs="$noconfigdirs target-gperf target-libgloss target-libffi"
 754     # always build newlib.
 755     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 756
 757     # Can't build gdb for Cygwin if not native.
 758     case "${host}" in
 759       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 760       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix libgui db snavigator gnuserv"
 761          ;;
 762     esac
 763     ;;
 764   i[3456]86-*-pe)
 765     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi"
 766     ;;
 767   i[3456]86-*-sco3.2v5*)
 768     # The linker does not yet know about weak symbols in COFF,
 769     # and is not configured to handle mixed ELF and COFF.
 770     noconfigdirs="$noconfigdirs ld target-libgloss target-libffi"
 771     ;;
 772   i[3456]86-*-sco*)
 773     noconfigdirs="$noconfigdirs gprof target-libgloss target-libffi"
 774     ;;
 775   i[3456]86-*-solaris2*)
 776     noconfigdirs="$noconfigdirs target-libgloss"
 777     ;;
 778   i[3456]86-*-sysv4*)
 779     # The SYSV4 C compiler doesn't handle Emacs correctly
 780     case "${CC}" in
 781         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 782         *) ;;
 783     esac
 784     # but that's okay since emacs doesn't work anyway
 785     noconfigdirs="$noconfigdirs emacs emacs19 target-libgloss target-libffi"
 786     ;;
 787   i[3456]86-*-beos*)
 788      noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 789      ;;
 790  m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 791     noconfigdirs="$noconfigdirs target-libiberty target-librx target-libg++ target-libstdc++ target-libio target-libf2c target-libchill target-zlib target-libobjc"
 792     ;;
 793  m68k-*-elf*)
 794     if [ x${is_cross_compiler} != xno ] ; then
 795            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 796     fi
 797     ;;
 798   m68k-*-coff*)
 799     if [ x${is_cross_compiler} != xno ] ; then
 800            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 801     fi
 802     ;;
 803   mn10200-*-*)
 804     noconfigdirs="$noconfigdirs target-libffi"
 805     if [ x${is_cross_compiler} != xno ] ; then
 806            target_configdirs="${target_configdirs} target-libstub target-cygmon"
 807     fi
 808     ;;
 809   mn10300-*-*)
 810     noconfigdirs="$noconfigdirs target-libffi"
 811     if [ x${is_cross_compiler} != xno ] ; then
 812            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 813     fi
 814     ;;
 815   powerpc-*-aix*)
 816     # copied from rs6000-*-* entry
 817     # The configure and build of ld are currently disabled because
 818     # GNU ld is known to be broken for AIX 4.2 and 4.3 (at least)
 819     # The symptom is that GDBtk 4.18 fails at startup with a segfault
 820     # if linked by GNU ld, but not if linked by the native ld.
 821     noconfigdirs="$noconfigdirs gprof cvssrc target-libgloss target-libffi ld"
 822     use_gnu_ld=no
 823     ;;
 824   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 825     target_configdirs="$target_configdirs target-winsup"
 826     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl tix db snavigator gnuserv target-libffi"
 827     # always build newlib.
 828     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 829     ;;
 830     # This is temporary until we can link against shared libraries
 831   powerpcle-*-solaris*)
 832     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl tix db snavigator gnuserv target-libffi"
 833     ;;
 834   powerpc-*-beos*)
 835     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 836     ;;
 837   powerpc-*-eabi)
 838     if [ x${is_cross_compiler} != xno ] ; then
 839            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 840     fi
 841     ;;
 842   rs6000-*-lynxos*)
 843     # The CVS server code doesn't work on the RS/6000
 844     noconfigdirs="$noconfigdirs target-newlib gprof cvssrc target-libffi"
 845     ;;
 846   rs6000-*-aix*)
 847     # The configure and build of ld are currently disabled because
 848     # GNU ld is known to be broken for AIX 4.2 and 4.3 (at least)
 849     # The symptom is that GDBtk 4.18 fails at startup with a segfault
 850     # if linked by GNU ld, but not if linked by the native ld.
 851     noconfigdirs="$noconfigdirs gprof target-libffi ld"
 852     use_gnu_ld=no
 853     ;;
 854   rs6000-*-*)
 855     noconfigdirs="$noconfigdirs gprof target-libffi"
 856     ;;
 857   m68k-apollo-*)
 858     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss target-libffi"
 859     ;;
 860   mips*-*-irix5*)
 861     # The GNU linker does not support shared libraries.
 862     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 863     noconfigdirs="$noconfigdirs ld gprof emacs target-libgloss"
 864     ;;
 865   mips*-*-irix6*)
 866     # The GNU assembler does not support IRIX 6.
 867     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 868     # Linking libjava exceeds command-line length limits on at least
 869     # IRIX 6.2, but not on IRIX 6.5.
 870     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 871     # <oldham@codesourcery.com>
 872     noconfigdirs="$noconfigdirs gas gprof emacs target-libgloss ${libgcj}"
 873     ;;
 874   mips*-dec-bsd*)
 875     noconfigdirs="$noconfigdirs gprof target-libgloss target-libffi"
 876     ;;
 877   mips*-*-bsd*)
 878     noconfigdirs="$noconfigdirs gprof target-libgloss target-libffi"
 879     ;;
 880   mipstx39-*-*)
 881     noconfigdirs="$noconfigdirs gprof target-libffi"   # same as generic mips
 882     target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 883    ;;
 884   mips*-*-*)
 885     noconfigdirs="$noconfigdirs gprof target-libffi"
 886     ;;
 887   romp-*-*)
 888     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss target-libffi"
 889     ;;
 890   sh-*-*)
 891     case "${host}" in
 892       i[3456]86-*-vsta) ;; # don't add gprof back in
 893       i[3456]86-*-go32*) ;; # don't add gprof back in
 894       i[3456]86-*-msdosdjgpp*) ;; # don't add gprof back in
 895       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 896     esac
 897     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 898     ;;
 899   sparc-*-elf*)
 900     if [ x${is_cross_compiler} != xno ] ; then
 901            target_configdirs="${target_configdirs} target-libstub target-cygmon"
 902     fi
 903     ;;
 904   sparc64-*-elf*)
 905     if [ x${is_cross_compiler} != xno ] ; then
 906            target_configdirs="${target_configdirs} target-libstub target-cygmon"
 907     fi
 908     noconfigdirs="$noconfigdirs target-libffi"
 909     ;;
 910   sparclite-*-*)
 911     if [ x${is_cross_compiler} != xno ] ; then
 912            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 913     fi
 914     noconfigdirs="$noconfigdirs target-libffi"
 915     ;;
 916   sparc-*-sunos4*)
 917     if [ x${is_cross_compiler} != xno ] ; then
 918            noconfigdirs="$noconfigdirs gdb gdbtest target-newlib target-libgloss"
 919     else
 920            use_gnu_ld=no
 921     fi
 922     ;;
 923   sparc-*-solaris*)
 924     case "${host}" in
 925     sparc-*-solaris2.8)
 926       # According to Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, libjava
 927       # won't build correctly on Solaris 8 if there's a
 928       # previously-installed version of GCC in the configured prefix.
 929       # This problem does not show up on earlier versions of Solaris.
 930       noconfigdirs="$noconfigdirs ${libgcj}"
 931       ;;
 932     esac
 933     ;;
 934   v810-*-*)
 935     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld ${libstdcxx_version} opcodes target-libgloss target-libffi"
 936     ;;
 937   v850-*-*)
 938     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 939     ;;
 940   v850e-*-*)
 941     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 942     ;;
 943   v850ea-*-*)
 944     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 945     ;;
 946   vax-*-vms)
 947     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss target-libffi"
 948     ;;
 949   vax-*-*)
 950     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libffi"
 951     ;;
 952   *-*-lynxos*)
 953     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libffi"
 954     ;;
 955   *-*-macos* | \
 956   *-*-mpw*)
 957     # Macs want a resource compiler.
 958     configdirs="$configdirs grez"
 959     noconfigdirs="$noconfigdirs target-libffi"
 960     ;;
 961 esac
 962
 963 # If we aren't building newlib, then don't build libgloss, since libgloss
 964 # depends upon some newlib header files.
 965 case "${noconfigdirs}" in
 966   *target-libgloss*) ;;
 967   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 968 esac
 969
 970 # Make sure we don't let GNU ld be added if we didn't want it.
 971 if [ x$with_gnu_ld = xno ]; then
 972   use_gnu_ld=no
 973   noconfigdirs="$noconfigdirs ld"
 974 fi
 975
 976 # Make sure we don't let GNU as be added if we didn't want it.
 977 if [ x$with_gnu_as = xno ]; then
 978   use_gnu_as=no
 979   noconfigdirs="$noconfigdirs gas"
 980 fi
 981
 982 # Figure out what language subdirectories are present.
 983 # Look if the user specified --enable-languages="..."; if not, use
 984 # the environment variable $LANGUAGES if defined. $LANGUAGES might
 985 # go away some day.
 986 if test x"${enable_languages+set}" != xset; then
 987         if test x"${LANGUAGES+set}" = xset; then
 988                 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
 989         else
 990                 enable_languages=all
 991         fi
 992 else
 993         if test x"${enable_languages}" = x; then
 994                 echo configure.in: --enable-languages needs at least one argument 1>&2
 995                 exit 1
 996         fi
 997 fi
 998 subdirs=
 999 for lang in ${srcdir}/gcc/*/config-lang.in ..
1000 do
1001         case $lang in
1002         ..) ;;
1003         # The odd quoting in the next line works around
1004         # an apparent bug in bash 1.12 on linux.
1005         ${srcdir}/gcc/[*]/config-lang.in) ;;
1006         *)
1007           lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^   ]*\).*$,\1,p' $lang`
1008           this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^         ]*\).*$,\1,p' $lang`
1009           build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^     ]*\).*$,\1,p' $lang`
1010           if test "x$lang_alias" = x
1011           then
1012                 echo "$lang doesn't set \$language." 1>&2
1013                 exit 1
1014           fi
1015           case ${build_by_default},${enable_languages}, in
1016           *,$lang_alias,*) add_this_lang=yes ;;
1017           no,*) add_this_lang=no ;;
1018           *,all,*) add_this_lang=yes ;;
1019           *) add_this_lang=no ;;
1020           esac
1021           if test x"${add_this_lang}" = xyes; then
1022               eval target_libs='"$target_libs "'\"$this_lang_libs\"
1023           else
1024               eval noconfigdirs='"$noconfigdirs "'\"$this_lang_libs\"
1025           fi
1026           ;;
1027         esac
1028 done
1029
1030
1031 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
1032 # $target_configdirs.
1033 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1034
1035 notsupp=""
1036 for dir in . $skipdirs $noconfigdirs ; do
1037   dirname=`echo $dir | sed -e s/target-//g`
1038   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1039     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1040     if [ -r $srcdir/$dirname/configure ] \
1041         || [ -r $srcdir/$dirname/configure.in ]; then
1042       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1043         true
1044       else
1045         notsupp="$notsupp $dir"
1046       fi
1047     fi
1048   fi
1049   if [ $dir != . ]  && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1050     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1051     if [ -r $srcdir/$dirname/configure ] \
1052         || [ -r $srcdir/$dirname/configure.in ]; then
1053       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1054         true
1055       else
1056         notsupp="$notsupp $dir"
1057       fi
1058     fi
1059   fi
1060 done
1061
1062 # Sometimes the tools are distributed with libiberty but with no other
1063 # libraries.  In that case, we don't want to build target-libiberty.
1064 if [ -n "${target_configdirs}" ]; then
1065   others=
1066   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1067     if [ "$i" != "libiberty" ]; then
1068       if [ -r $srcdir/$i/configure ] || [ -r $srcdir/$i/configure.in ]; then
1069         others=yes;
1070         break;
1071       fi
1072     fi
1073   done
1074   if [ -z "${others}" ]; then
1075     target_configdirs=
1076   fi
1077 fi
1078
1079 # Deconfigure all subdirectories, in case we are changing the
1080 # configuration from one where a subdirectory is supported to one where it
1081 # is not.
1082 if [ -z "${norecursion}" ] && [ -n "${configdirs}" ]; then
1083   for i in `echo ${configdirs} | sed -e s/target-//g` ; do
1084     rm -f $i/Makefile
1085   done
1086 fi
1087 if [ -z "${norecursion}" ] && [ -n "${target_configdirs}" ]; then
1088   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1089     rm -f ${target_subdir}/$i/Makefile
1090   done
1091 fi
1092
1093 # Produce a warning message for the subdirs we can't configure.
1094 # This isn't especially interesting in the Cygnus tree, but in the individual
1095 # FSF releases, it's important to let people know when their machine isn't
1096 # supported by the one or two programs in a package.
1097
1098 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
1099   # If $appdirs is non-empty, at least one of those directories must still
1100   # be configured, or we error out.  (E.g., if the gas release supports a
1101   # specified target in some subdirs but not the gas subdir, we shouldn't
1102   # pretend that all is well.)
1103   if [ -n "$appdirs" ]; then
1104     for dir in $appdirs ; do
1105       if [ -r $dir/Makefile.in ]; then
1106         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1107           appdirs=""
1108           break
1109         fi
1110         if echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1111           appdirs=""
1112           break
1113         fi
1114       fi
1115     done
1116     if [ -n "$appdirs" ]; then
1117       echo "*** This configuration is not supported by this package." 1>&2
1118       exit 1
1119     fi
1120   fi
1121   # Okay, some application will build, or we don't care to check.  Still
1122   # notify of subdirs not getting built.
1123   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1124   echo "    ${notsupp}" 1>&2
1125   echo "    (Any other directories should still work fine.)" 1>&2
1126 fi
1127
1128 # Set with_gnu_as and with_gnu_ld as appropriate.
1129 #
1130 # This is done by determining whether or not the appropriate directory
1131 # is available, and by checking whether or not specific configurations
1132 # have requested that this magic not happen.
1133 #
1134 # The command line options always override the explicit settings in
1135 # configure.in, and the settings in configure.in override this magic.
1136 #
1137 # If the default for a toolchain is to use GNU as and ld, and you don't
1138 # want to do that, then you should use the --without-gnu-as and
1139 # --without-gnu-ld options for the configure script.
1140
1141 if [ x${use_gnu_as} = x ] ; then
1142   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
1143     with_gnu_as=yes
1144     withoptions="$withoptions --with-gnu-as"
1145   fi
1146 fi
1147
1148 if [ x${use_gnu_ld} = x ] ; then
1149   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
1150     with_gnu_ld=yes
1151     withoptions="$withoptions --with-gnu-ld"
1152   fi
1153 fi
1154
1155 # If using newlib, add --with-newlib to the withoptions so that gcc/configure
1156 # can detect this case.
1157
1158 if [ x${with_newlib} != xno ] && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 && [ -d ${srcdir}/newlib ] ; then
1159   with_newlib=yes
1160   withoptions="$withoptions --with-newlib"
1161 fi
1162
1163 if [ x${shared} = xyes ]; then
1164   case "${target}" in
1165     hppa*)
1166       target_makefile_frag="${target_makefile_frag} config/mt-papic"
1167       ;;
1168     i[3456]86-*)
1169       target_makefile_frag="${target_makefile_frag} config/mt-x86pic"
1170       ;;
1171     ia64-*)
1172       target_makefile_frag="${target_makefile_frag} config/mt-ia64pic"
1173       ;;
1174     powerpc*-*-aix*)
1175       # We don't want -fPIC on AIX.
1176       ;;
1177     powerpc*-*)
1178       target_makefile_frag="${target_makefile_frag} config/mt-ppcpic"
1179       ;;
1180     alpha*-*-linux*)
1181       target_makefile_frag="${target_makefile_frag} config/mt-elfalphapic"
1182       ;;
1183     *)
1184       if test -f ${srcdir}/config/mt-${target_cpu}pic; then
1185         target_makefile_frag="${target_makefile_frag} config/mt-${target_cpu}pic"
1186       fi
1187       ;;
1188   esac
1189 fi
1190
1191 rm -f mt-frag
1192 if [ -n "${target_makefile_frag}" ] ; then
1193   for f in ${target_makefile_frag}
1194   do
1195     cat ${srcdir}/$f >> mt-frag
1196   done
1197   target_makefile_frag=mt-frag
1198 fi
1199
1200 # post-target:
1201
1202 # Make sure that the compiler is able to generate an executable.  If it
1203 # can't, we are probably in trouble.  We don't care whether we can run the
1204 # executable--we might be using a cross compiler--we only care whether it
1205 # can be created.  At this point the main configure script has set CC.
1206 echo "int main () { return 0; }" > conftest.c
1207 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1208 if [ $? = 0 ] && [ -s conftest -o -s conftest.exe ]; then
1209   :
1210 else
1211   echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1212   echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1213   rm -f conftest*
1214   exit 1
1215 fi
1216 rm -f conftest*
1217
1218 # The Solaris /usr/ucb/cc compiler does not appear to work.
1219 case "${host}" in
1220   sparc-sun-solaris2*)
1221       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1222       if [ "`/usr/bin/which $CCBASE`" = "/usr/ucb/cc" ] ; then
1223           could_use=
1224           [ -d /opt/SUNWspro/bin ] && could_use="/opt/SUNWspro/bin"
1225           if [ -d /opt/cygnus/bin ] ; then
1226               if [ "$could_use" = "" ] ; then
1227                   could_use="/opt/cygnus/bin"
1228               else
1229                   could_use="$could_use or /opt/cygnus/bin"
1230               fi
1231           fi
1232         if [ "$could_use" = "" ] ; then
1233             echo "Warning: compilation may fail because you're using"
1234             echo "/usr/ucb/cc.  You should change your PATH or CC "
1235             echo "variable and rerun configure."
1236         else
1237             echo "Warning: compilation may fail because you're using"
1238             echo "/usr/ucb/cc, when you should use the C compiler from"
1239             echo "$could_use.  You should change your"
1240             echo "PATH or CC variable and rerun configure."
1241         fi
1242       fi
1243   ;;
1244 esac
1245
1246 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
1247 # binutils tools will find libbfd.so.
1248 if [ "${shared}" = "yes" ]; then
1249   sed -e 's/^SET_LIB_PATH[      ]*=.*$/SET_LIB_PATH = $(REALLY_SET_LIB_PATH)/' \
1250       Makefile > Makefile.tem
1251   rm -f Makefile
1252   mv -f Makefile.tem Makefile
1253
1254   case "${host}" in
1255   *-*-hpux*)
1256     sed -e 's/^RPATH_ENVVAR[    ]*=.*$/RPATH_ENVVAR = SHLIB_PATH/' \
1257         Makefile > Makefile.tem
1258     rm -f Makefile
1259     mv -f Makefile.tem Makefile
1260     ;;
1261   esac
1262 fi
1263
1264 # Record target_configdirs and the configure arguments in Makefile.
1265 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1266 targargs=`echo "${arguments}" | \
1267         sed -e 's/--no[^        ]*//' \
1268             -e 's/--cache[a-z-]*=[^     ]*//' \
1269             -e 's/--ho[a-z-]*=[^        ]*//' \
1270             -e 's/--bu[a-z-]*=[^        ]*//' \
1271             -e 's/--ta[a-z-]*=[^        ]*//'`
1272
1273 # Passing a --with-cross-host argument lets the target libraries know
1274 # whether they are being built with a cross-compiler or being built
1275 # native.  However, it would be better to use other mechanisms to make the
1276 # sorts of decisions they want to make on this basis.  Please consider
1277 # this option to be deprecated.  FIXME.
1278 if [ x${is_cross_compiler} = xyes ]; then
1279   targargs="--with-cross-host=${host_alias} ${targargs}"
1280 fi
1281
1282 # Default to --enable-multilib.
1283 if [ x${enable_multilib} = x ]; then
1284   targargs="--enable-multilib ${targargs}"
1285 fi
1286
1287 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1288 # changed from the earlier setting of with_newlib.
1289 if [ x${with_newlib} != xno ] && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && [ -d ${srcdir}/newlib ] ; then
1290   targargs="--with-newlib ${targargs}"
1291 fi
1292
1293 # provide a proper gxx_include_dir.
1294 # Note, if you change the default, make sure to fix both here and in
1295 # the gcc, libio, and libstdc++ subdirectories.
1296 # Check whether --with-gxx-include-dir or --without-gxx-include-dir was given.
1297 gxx_include_dir=
1298 if test -n "${with_gxx_include_dir}"; then
1299   case "${with_gxx_include_dir}" in
1300     yes )
1301       echo "configure.in: error: bad value ${withval} given for g++ include directory" 1>&2
1302       exit 1
1303       ;;
1304     no )
1305       ;;
1306     * )
1307       gxx_include_dir=${with_gxx_include_dir}
1308       ;;
1309   esac
1310 fi
1311 if test x${gxx_include_dir} = x; then
1312   if test x${enable_version_specific_runtime_libs} = xyes; then
1313     gxx_include_dir='${libsubdir}/include/g++'
1314   else
1315     . ${topsrcdir}/config.if
1316     gxx_include_dir='${prefix}/include/g++'-${libstdcxx_interface}
1317   fi
1318 else
1319   gxx_include_dir=${gxx_include_dir}
1320 fi
1321
1322 FLAGS_FOR_TARGET=
1323 case " $skipdirs " in
1324 *" target-newlib "*) ;;
1325 *)
1326    case "$target" in
1327    *-cygwin*)
1328      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' ;;
1329    esac
1330
1331    # If we're not building GCC, don't discard standard headers.
1332    if test -d ${topsrcdir}/gcc; then
1333      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1334
1335      if test "${build}" != "${host}"; then
1336        # On Canadian crosses, CC_FOR_TARGET will have already been set
1337        # by `configure', so we won't have an opportunity to add -Bgcc/
1338        # to it.  This is right: we don't want to search that directory
1339        # for binaries, but we want the header files in there, so add
1340        # them explicitly.
1341        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/gcc/include'
1342
1343        # Someone might think of using the pre-installed headers on
1344        # Canadian crosses, in case the installed compiler is not fully
1345        # compatible with the compiler being built.  In this case, it
1346        # would be better to flag an error than risking having
1347        # incompatible object files being constructed.  We can't
1348        # guarantee that an error will be flagged, but let's hope the
1349        # compiler will do it, when presented with incompatible header
1350        # files.
1351      fi
1352    fi
1353
1354    # If we're building newlib, use its generic headers last, but search
1355    # for any libc-related directories first (so make it the last -B
1356    # switch).
1357    FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
1358    ;;
1359 esac
1360
1361 # On Canadian crosses, we'll be searching the right directories for
1362 # the previously-installed cross compiler, so don't bother to add
1363 # flags for directories within the install tree of the compiler
1364 # being built; programs in there won't even run.
1365 if test "${build}" = "${host}" && test -d ${topsrcdir}/gcc; then
1366   # Search for pre-installed headers if nothing else fits.
1367   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include'
1368 fi
1369
1370 if test "x${use_gnu_ld}" = x && test "x${with_gnu_ld}" != xno &&
1371    echo " ${configdirs} " | grep " ld " > /dev/null &&
1372    test -d ${srcdir}/ld; then
1373   # Arrange for us to find uninstalled linker scripts.
1374   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/ld'
1375 fi
1376
1377 if test "x${CC_FOR_TARGET+set}" = xset; then
1378   :
1379 elif test -d ${topsrcdir}/gcc; then
1380   CC_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/'
1381 elif test "$host" = "$target"; then
1382   CC_FOR_TARGET='$(CC)'
1383 else
1384   CC_FOR_TARGET=`echo gcc | sed -e 's/x/x/' ${program_transform_name}`
1385 fi
1386 # On Canadian crosses, configure reads CC_FOR_TARGET from Makefile,
1387 # if Makefile exists.  Prevent $(FLAGS_FOR_TARGET) from being duplicated.
1388 case $CC_FOR_TARGET in
1389 *' $(FLAGS_FOR_TARGET)') ;;
1390 *) CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
1391 esac
1392
1393 if test "x${CHILL_FOR_TARGET+set}" = xset; then
1394   :
1395 elif test -d ${topsrcdir}/gcc; then
1396   CHILL_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/ -L$$r/gcc/ch/runtime/'
1397 elif test "$host" = "$target"; then
1398   CHILL_FOR_TARGET='$(CC)'
1399 else
1400   CHILL_FOR_TARGET=`echo gcc | sed -e 's/x/x/' ${program_transform_name}`
1401 fi
1402 case $CHILL_FOR_TARGET in
1403 *' $(FLAGS_FOR_TARGET)') ;;
1404 *) CHILL_FOR_TARGET=$CHILL_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
1405 esac
1406
1407 if test "x${CXX_FOR_TARGET+set}" = xset; then
1408   :
1409 elif test -d ${topsrcdir}/gcc; then
1410   CXX_FOR_TARGET='$$r/gcc/`case $$dir in libstdc++-v3) echo xgcc ;; *) echo g++ ;; esac` -B$$r/gcc/ -nostdinc++ '$libstdcxx_flags
1411 elif test "$host" = "$target"; then
1412   CXX_FOR_TARGET='$(CXX)'
1413 else
1414   CXX_FOR_TARGET=`echo c++ | sed -e 's/x/x/' ${program_transform_name}`
1415 fi
1416 case $CXX_FOR_TARGET in
1417 *' $(FLAGS_FOR_TARGET)') ;;
1418 *) CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
1419 esac
1420 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,[&%],\\\&,g'`
1421
1422 # We want to defer the evaluation of `cmd`s and shell variables in
1423 # CXX_FOR_TARGET when recursing in the top-level Makefile, such as for
1424 # bootstrap.  We'll enclose CXX_FOR_TARGET_FOR_RECURSIVE_MAKE in single
1425 # quotes, but we still have to duplicate `$'s so that shell variables
1426 # can be expanded by the nested make as shell variables, not as make
1427 # macros.
1428 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[$][$],$$$$,g'`
1429
1430 targargs="--cache-file=../config.cache --host=${target_alias} --build=${build_alias} ${targargs}"
1431 sed -e "s:^TARGET_CONFIGDIRS[   ]*=.*$:TARGET_CONFIGDIRS = ${target_configdirs}:" \
1432     -e "s%^CONFIG_ARGUMENTS[    ]*=.*$%CONFIG_ARGUMENTS = ${targargs}%" \
1433     -e "s%^FLAGS_FOR_TARGET[    ]*=.*$%FLAGS_FOR_TARGET = ${FLAGS_FOR_TARGET}%" \
1434     -e "s%^CC_FOR_TARGET[       ]*=.*$%CC_FOR_TARGET = ${CC_FOR_TARGET}%" \
1435     -e "s%^CHILL_FOR_TARGET[    ]*=.*$%CHILL_FOR_TARGET = ${CHILL_FOR_TARGET}%" \
1436     -e "s%^CXX_FOR_TARGET[      ]*=.*$%CXX_FOR_TARGET = ${qCXX_FOR_TARGET}%" \
1437     -e "s%^CXX_FOR_TARGET_FOR_RECURSIVE_MAKE[   ]*=.*$%CXX_FOR_TARGET_FOR_RECURSIVE_MAKE = ${qqCXX_FOR_TARGET}%" \
1438     -e "s%^TARGET_SUBDIR[       ]*=.*$%TARGET_SUBDIR = ${target_subdir}%" \
1439     -e "s%^gxx_include_dir[     ]*=.*$%gxx_include_dir=${gxx_include_dir}%" \
1440        Makefile > Makefile.tem
1441 rm -f Makefile
1442 mv -f Makefile.tem Makefile
1443
1444 #
1445 # Local Variables:
1446 # fill-column: 131
1447 # End:
1448 #