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 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 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     *-*-*)
 325       if test -f ${srcdir}/config/mh-${host_cpu}pic; then
 326         host_makefile_frag="${host_makefile_frag} config/mh-${host_cpu}pic"
 327       fi
 328       ;;
 329   esac
 330 fi
 331
 332 rm -f mh-frag
 333 if [ -n "${host_makefile_frag}" ] ; then
 334   for f in ${host_makefile_frag}
 335   do
 336     cat ${srcdir}/$f >> mh-frag
 337   done
 338   host_makefile_frag=mh-frag
 339 fi
 340
 341 # per-target:
 342
 343 case "${target}" in
 344   v810*)
 345     target_makefile_frag="${target_makefile_frag} config/mt-v810"
 346     ;;
 347   i[3456]86-*-netware*)
 348     target_makefile_frag="${target_makefile_frag} config/mt-netware"
 349     ;;
 350   powerpc-*-netware*)
 351     target_makefile_frag="${target_makefile_frag} config/mt-netware"
 352     ;;
 353   *-*-linux-gnu*)
 354     target_makefile_frag="${target_makefile_frag} config/mt-linux"
 355     ;;
 356   *-*-aix4.[3456789]* | *-*-aix[56789].*)
 357     target_makefile_frag="${target_makefile_frag} config/mt-aix43"
 358     ;;
 359   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
 360     target_makefile_frag="${target_makefile_frag} config/mt-wince"
 361     ;;
 362 esac
 363
 364 # If --enable-target-optspace always use -Os instead of -O2 to build
 365 # the target libraries, similarly if it is not specified, use -Os
 366 # on selected platforms.
 367 case "${enable_target_optspace}:${target}" in
 368   yes:*)
 369     target_makefile_frag="${target_makefile_frag} config/mt-ospace"
 370     ;;
 371   :d30v-*)
 372     target_makefile_frag="${target_makefile_frag} config/mt-d30v"
 373     ;;
 374   :m32r-* | :d10v-* | :fr30-*)
 375     target_makefile_frag="${target_makefile_frag} config/mt-ospace"
 376     ;;
 377   no:* | :*)
 378     ;;
 379   *)
 380     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
 381     ;;
 382 esac
 383
 384 skipdirs=
 385 gasdir=gas
 386 use_gnu_ld=
 387 use_gnu_as=
 388
 389 # some tools are so dependent upon X11 that if we're not building with X,
 390 # it's not even worth trying to configure, much less build, that tool.
 391
 392 case ${with_x} in
 393   yes | "")  # the default value for this tree is that X11 is available
 394         ;;
 395   no)
 396         skipdirs="${skipdirs} tk libgui gash"
 397         ;;
 398   *)
 399         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 400         ;;
 401 esac
 402
 403 # Some tools are only suitable for building in a "native" situation.
 404 # Those are added when we have a host==target configuration.  For cross
 405 # toolchains, we add some directories that should only be useful in a
 406 # cross-compiler.
 407
 408 is_cross_compiler=
 409
 410 if [ x"${host}" = x"${target}" ] ; then
 411         # when doing a native toolchain, don't build the targets
 412         # that are in the 'cross only' list
 413         skipdirs="${skipdirs} ${cross_only}"
 414         is_cross_compiler=no
 415 else
 416         # similarly, don't build the targets in the 'native only'
 417         # list when building a cross compiler
 418         skipdirs="${skipdirs} ${native_only}"
 419         is_cross_compiler=yes
 420 fi
 421
 422 # We always want to use the same name for this directory, so that dejagnu
 423 # can reliably find it.
 424 target_subdir=${target_alias}
 425
 426 if [ ! -d ${target_subdir} ] ; then
 427   if mkdir ${target_subdir} ; then true
 428   else
 429     echo "'*** could not make ${PWD=`pwd`}/${target_subdir}" 1>&2
 430     exit 1
 431   fi
 432 fi
 433
 434 copy_dirs=
 435
 436 # Handle --with-headers=XXX.  The contents of the named directory are
 437 # copied to $(tooldir)/sys-include.
 438 if [ x"${with_headers}" != x ]; then
 439   if [ x${is_cross_compiler} = xno ]; then
 440     echo 1>&2 '***' --with-headers is only supported when cross compiling
 441     exit 1
 442   fi
 443   case "${exec_prefixoption}" in
 444   "") x=${prefix} ;;
 445   *) x=${exec_prefix} ;;
 446   esac
 447   copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
 448 fi
 449
 450 # Handle --with-libs=XXX.  Multiple directories are permitted.  The
 451 # contents are copied to $(tooldir)/lib.
 452 if [ x"${with_libs}" != x ]; then
 453   if [ x${is_cross_compiler} = xno ]; then
 454     echo 1>&2 '***' --with-libs is only supported when cross compiling
 455     exit 1
 456   fi
 457   # Copy the libraries in reverse order, so that files in the first named
 458   # library override files in subsequent libraries.
 459   case "${exec_prefixoption}" in
 460   "") x=${prefix} ;;
 461   *) x=${exec_prefix} ;;
 462   esac
 463   for l in ${with_libs}; do
 464     copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 465   done
 466 fi
 467
 468 # If both --with-headers and --with-libs are specified, default to
 469 # --without-newlib.
 470 if [ x"${with_headers}" != x ] && [ x"${with_libs}" != x ]; then
 471   if [ x"${with_newlib}" = x ]; then
 472     with_newlib=no
 473   fi
 474 fi
 475
 476 # Recognize --with-newlib/--without-newlib.
 477 if [ x${with_newlib} = xno ]; then
 478   skipdirs="${skipdirs} target-newlib"
 479 elif [ x${with_newlib} = xyes ]; then
 480   skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 481 fi
 482
 483 # Default to using --with-stabs for certain targets.
 484 if [ x${with_stabs} = x ]; then
 485   case "${target}" in
 486   mips*-*-irix6*)
 487     ;;
 488   mips*-*-* | alpha*-*-osf*)
 489     with_stabs=yes;
 490     withoptions="${withoptions} --with-stabs"
 491     ;;
 492   esac
 493 fi
 494
 495 # Handle ${copy_dirs}
 496 set fnord ${copy_dirs}
 497 shift
 498 while [ $# != 0 ]; do
 499   if [ -f $2/COPIED ] && [ x"`cat $2/COPIED`" = x"$1" ]; then
 500     :
 501   else
 502     echo Copying $1 to $2
 503
 504     # Use the install script to create the directory and all required
 505     # parent directories.
 506     if [ -d $2 ]; then
 507       :
 508     else
 509       echo >config.temp
 510       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
 511     fi
 512
 513     # Copy the directory, assuming we have tar.
 514     # FIXME: Should we use B in the second tar?  Not all systems support it.
 515     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 516
 517     # It is the responsibility of the user to correctly adjust all
 518     # symlinks.  If somebody can figure out how to handle them correctly
 519     # here, feel free to add the code.
 520
 521     echo $1 > $2/COPIED
 522   fi
 523   shift; shift
 524 done
 525
 526 # Configure extra directories which are host specific
 527
 528 case "${host}" in
 529         i[3456]86-*-go32*)
 530           configdirs="$configdirs dosrel" ;;
 531         i[3456]86-*-mingw32*)
 532           configdirs="$configdirs dosrel" ;;
 533         *-cygwin*)
 534           configdirs="$configdirs libtermcap dosrel" ;;
 535 esac
 536
 537 # Remove more programs from consideration, based on the host or
 538 # target this usually means that a port of the program doesn't
 539 # exist yet.
 540
 541 noconfigdirs=""
 542
 543 case "${host}" in
 544   i[3456]86-*-vsta)
 545     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"
 546     ;;
 547   i[3456]86-*-go32* | i[3456]86-*-msdosdjgpp*)
 548     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"
 549         ;;
 550   i[3456]86-*-mingw32*)
 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"
 552      noconfigdirs="expect dejagnu cvs autoconf automake send-pr rcs guile perl texinfo apache inet libtool"
 553         ;;
 554   i[3456]86-*-beos*)
 555      noconfigdirs="$noconfigdirs tk itcl tix libgui gdb"
 556      ;;
 557   *-*-cygwin*)
 558      noconfigdirs="autoconf automake send-pr rcs guile perl texinfo apache inet"
 559     ;;
 560   *-*-netbsd*)
 561     noconfigdirs="rcs"
 562     ;;
 563   ppc*-*-pe)
 564      noconfigdirs="patch diff make tk tcl expect dejagnu cvssrc autoconf automake texinfo bison send-pr gprof rcs guile perl apache inet itcl tix db snavigator gnuserv"
 565     ;;
 566   powerpc-*-beos*)
 567     noconfigdirs="$noconfigdirs tk itcl tix libgui gdb dejagnu readline"
 568     ;;
 569 esac
 570
 571
 572 case "${target}" in
 573   *-*-netware)
 574     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-newlib target-libiberty target-libgloss target-libffi"
 575     ;;
 576   *-*-rtems*)
 577     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 578     ;;
 579   *-*-vxworks*)
 580     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libffi"
 581     ;;
 582   alpha*-dec-osf*)
 583     # ld works, but does not support shared libraries.  emacs doesn't
 584     # work.  newlib is not 64 bit ready.  I'm not sure about fileutils.
 585     # gas doesn't generate exception information.
 586     noconfigdirs="$noconfigdirs gas ld emacs fileutils target-newlib target-libgloss"
 587     ;;
 588   alpha*-*-*vms*)
 589     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss target-libffi"
 590     ;;
 591   alpha*-*-*)
 592     # newlib is not 64 bit ready
 593     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 594     ;;
 595   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 596     noconfigdirs="$noconfigdirs target-libjava target-libffi target-zlib"
 597     noconfigdirs="$noconfigdirs target-boehm-gc target-qthreads target-examples"
 598     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 599     noconfigdirs="$noconfigdirs tcl tix tk itcl libgui sim"
 600     noconfigdirs="$noconfigdirs expect dejagnu"
 601     # the C++ libraries don't build on top of CE's C libraries
 602     noconfigdirs="$noconfigdirs ${libstdcxx_version}"
 603     skipdirs="$skipdirs target-newlib"
 604     case "${host}" in
 605       *-*-cygwin*) ;; # keep gdb and readline
 606       *) noconfigdirs="$noconfigdirs gdb readline ${libstdcxx_version}"
 607          ;;
 608     esac
 609     ;;
 610   arc-*-*)
 611     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 612     ;;
 613   arm-*-pe*)
 614     noconfigdirs="$noconfigdirs target-libgloss"
 615     ;;
 616   arm-*-coff*)
 617     noconfigdirs="$noconfigdirs target-libgloss"
 618     if [ x${is_cross_compiler} != xno ] ; then
 619            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 620     fi
 621     ;;
 622   arm-*-elf*)
 623     noconfigdirs="$noconfigdirs target-libgloss"
 624     if [ x${is_cross_compiler} != xno ] ; then
 625            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 626     fi
 627     ;;
 628   arm-*-oabi*)
 629     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 630     ;;
 631   c4x-*-*)
 632     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi"
 633     ;;
 634   c54x*-*-* | tic54x-*-*)
 635     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi gcc gdb newlib"
 636     ;;
 637   thumb-*-coff)
 638     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 639     ;;
 640   thumb-*-elf)
 641     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 642     ;;
 643   thumb-*-oabi)
 644     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 645     ;;
 646   strongarm-*-elf)
 647     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 648     if [ x${is_cross_compiler} != xno ] ; then
 649            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 650     fi
 651     ;;
 652   strongarm-*-coff)
 653     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 654     if [ x${is_cross_compiler} != xno ] ; then
 655            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 656     fi
 657     ;;
 658   thumb-*-pe)
 659     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 660     ;;
 661   arm-*-riscix*)
 662     noconfigdirs="$noconfigdirs ld target-libgloss target-libffi"
 663     ;;
 664   d10v-*-*)
 665     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi"
 666     ;;
 667   d30v-*-*)
 668     ;;
 669   fr30-*-elf*)
 670     if [ x${is_cross_compiler} != xno ] ; then
 671            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 672     fi
 673     ;;
 674   h8300*-*-* | \
 675   h8500-*-*)
 676     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi"
 677     ;;
 678   hppa*-*-*elf* | \
 679   hppa*-*-linux-gnu* | \
 680   hppa*-*-lites* | \
 681   hppa*64*-*-*)
 682     # Do configure ld/binutils/gas for this case.
 683     ;;
 684   hppa*-*-*)
 685     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 686     # cc is gcc, and on any system a user should be able to link cc to
 687     # whatever they want.  FIXME, emacs emacs19).
 688     case "${CC}" in
 689         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 690         *) ;;
 691     esac
 692     noconfigdirs="$noconfigdirs ld shellutils"
 693     ;;
 694   ia64*-*-elf*)
 695     # No gdb support yet.
 696     noconfigdirs="$noconfigdirs tix readline mmalloc libgui itcl gdb"
 697     ;;
 698   i[3456]86-*-coff | i[3456]86-*-elf)
 699     if [ x${is_cross_compiler} != xno ] ; then
 700          target_configdirs="${target_configdirs} target-libstub target-cygmon"
 701     fi
 702     ;;
 703   i[3456]86-*-go32* | i[3456]-*-msdosdjgpp*)
 704     # but don't build gdb
 705     noconfigdirs="$noconfigdirs gdb ${libstdcxx_version} target-libffi"
 706     ;;
 707   i[3456]86-*-mingw32*)
 708     target_configdirs="$target_configdirs target-mingw"
 709     noconfigdirs="$noconfigdirs expect target-libgloss target-libffi"
 710
 711     # Can't build gdb for mingw32 if not native.
 712     case "${host}" in
 713       i[3456]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 714       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix db snavigator gnuserv"
 715          ;;
 716     esac
 717     ;;
 718   *-*-cygwin*)
 719     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 720     noconfigdirs="$noconfigdirs target-gperf target-libgloss target-libffi"
 721     # always build newlib.
 722     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 723
 724     # Can't build gdb for Cygwin if not native.
 725     case "${host}" in
 726       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 727       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix libgui db snavigator gnuserv"
 728          ;;
 729     esac
 730     ;;
 731   i[3456]86-*-pe)
 732     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi"
 733     ;;
 734   i[3456]86-*-sco3.2v5*)
 735     # The linker does not yet know about weak symbols in COFF,
 736     # and is not configured to handle mixed ELF and COFF.
 737     noconfigdirs="$noconfigdirs ld target-libgloss target-libffi"
 738     ;;
 739   i[3456]86-*-sco*)
 740     noconfigdirs="$noconfigdirs gprof target-libgloss target-libffi"
 741     ;;
 742   i[3456]86-*-solaris2*)
 743     noconfigdirs="$noconfigdirs target-libgloss"
 744     ;;
 745   i[3456]86-*-sysv4*)
 746     # The SYSV4 C compiler doesn't handle Emacs correctly
 747     case "${CC}" in
 748         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 749         *) ;;
 750     esac
 751     # but that's okay since emacs doesn't work anyway
 752     noconfigdirs="$noconfigdirs emacs emacs19 target-libgloss target-libffi"
 753     ;;
 754   i[3456]86-*-beos*)
 755      noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 756      ;;
 757  m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 758     noconfigdirs="$noconfigdirs target-libiberty target-librx target-libg++ target-libstdc++ target-libio target-libf2c target-libchill target-zlib target-libobjc"
 759     ;;
 760  m68k-*-elf*)
 761     if [ x${is_cross_compiler} != xno ] ; then
 762            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 763     fi
 764     ;;
 765   m68k-*-coff*)
 766     if [ x${is_cross_compiler} != xno ] ; then
 767            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 768     fi
 769     ;;
 770   mn10200-*-*)
 771     noconfigdirs="$noconfigdirs target-libffi"
 772     if [ x${is_cross_compiler} != xno ] ; then
 773            target_configdirs="${target_configdirs} target-libstub target-cygmon"
 774     fi
 775     ;;
 776   mn10300-*-*)
 777     noconfigdirs="$noconfigdirs target-libffi"
 778     if [ x${is_cross_compiler} != xno ] ; then
 779            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 780     fi
 781     ;;
 782   powerpc-*-aix*)
 783     # copied from rs6000-*-* entry
 784     # The configure and build of ld are currently disabled because
 785     # GNU ld is known to be broken for AIX 4.2 and 4.3 (at least)
 786     # The symptom is that GDBtk 4.18 fails at startup with a segfault
 787     # if linked by GNU ld, but not if linked by the native ld.
 788     noconfigdirs="$noconfigdirs gprof cvssrc target-libgloss target-libffi ld"
 789     use_gnu_ld=no
 790     ;;
 791   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 792     target_configdirs="$target_configdirs target-winsup"
 793     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl tix db snavigator gnuserv target-libffi"
 794     # always build newlib.
 795     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 796     ;;
 797     # This is temporary until we can link against shared libraries
 798   powerpcle-*-solaris*)
 799     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl tix db snavigator gnuserv target-libffi"
 800     ;;
 801   powerpc-*-beos*)
 802     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 803     ;;
 804   powerpc-*-eabi)
 805     if [ x${is_cross_compiler} != xno ] ; then
 806            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 807     fi
 808     ;;
 809   rs6000-*-lynxos*)
 810     # The CVS server code doesn't work on the RS/6000
 811     noconfigdirs="$noconfigdirs target-newlib gprof cvssrc target-libffi"
 812     ;;
 813   rs6000-*-aix*)
 814     # The configure and build of ld are currently disabled because
 815     # GNU ld is known to be broken for AIX 4.2 and 4.3 (at least)
 816     # The symptom is that GDBtk 4.18 fails at startup with a segfault
 817     # if linked by GNU ld, but not if linked by the native ld.
 818     noconfigdirs="$noconfigdirs gprof target-libffi ld"
 819     use_gnu_ld=no
 820     ;;
 821   rs6000-*-*)
 822     noconfigdirs="$noconfigdirs gprof target-libffi"
 823     ;;
 824   m68k-apollo-*)
 825     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss target-libffi"
 826     ;;
 827   mips*-*-irix5*)
 828     # The GNU linker does not support shared libraries.
 829     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 830     noconfigdirs="$noconfigdirs ld gprof emacs target-libgloss"
 831     ;;
 832   mips*-*-irix6*)
 833     # The GNU assembler does not support IRIX 6.
 834     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 835     noconfigdirs="$noconfigdirs gas gprof emacs target-libgloss"
 836     ;;
 837   mips*-dec-bsd*)
 838     noconfigdirs="$noconfigdirs gprof target-libgloss target-libffi"
 839     ;;
 840   mips*-*-bsd*)
 841     noconfigdirs="$noconfigdirs gprof target-libgloss target-libffi"
 842     ;;
 843   mipstx39-*-*)
 844     noconfigdirs="$noconfigdirs gprof target-libffi"   # same as generic mips
 845     target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 846    ;;
 847   mips*-*-*)
 848     noconfigdirs="$noconfigdirs gprof target-libffi"
 849     ;;
 850   romp-*-*)
 851     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss target-libffi"
 852     ;;
 853   sh-*-*)
 854     case "${host}" in
 855       i[3456]86-*-vsta) ;; # don't add gprof back in
 856       i[3456]86-*-go32*) ;; # don't add gprof back in
 857       i[3456]86-*-msdosdjgpp*) ;; # don't add gprof back in
 858       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 859     esac
 860     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 861     ;;
 862   sparc-*-elf*)
 863     if [ x${is_cross_compiler} != xno ] ; then
 864            target_configdirs="${target_configdirs} target-libstub target-cygmon"
 865     fi
 866     ;;
 867   sparc64-*-elf*)
 868     if [ x${is_cross_compiler} != xno ] ; then
 869            target_configdirs="${target_configdirs} target-libstub target-cygmon"
 870     fi
 871     noconfigdirs="target-libffi"
 872     ;;
 873   sparclite-*-*)
 874     if [ x${is_cross_compiler} != xno ] ; then
 875            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 876     fi
 877     noconfigdirs="target-libffi"
 878     ;;
 879   sparc-*-sunos4*)
 880     if [ x${is_cross_compiler} != xno ] ; then
 881            noconfigdirs="$noconfigdirs gdb gdbtest target-newlib target-libgloss"
 882     else
 883            use_gnu_ld=no
 884     fi
 885     ;;
 886   v810-*-*)
 887     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld ${libstdcxx_version} opcodes target-libgloss target-libffi"
 888     ;;
 889   v850-*-*)
 890     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 891     ;;
 892   v850e-*-*)
 893     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 894     ;;
 895   v850ea-*-*)
 896     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 897     ;;
 898   vax-*-vms)
 899     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss target-libffi"
 900     ;;
 901   vax-*-*)
 902     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libffi"
 903     ;;
 904   *-*-lynxos*)
 905     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libffi"
 906     ;;
 907   *-*-macos* | \
 908   *-*-mpw*)
 909     # Macs want a resource compiler.
 910     configdirs="$configdirs grez"
 911     noconfigdirs="target-libffi"
 912     ;;
 913 esac
 914
 915 # If we aren't building newlib, then don't build libgloss, since libgloss
 916 # depends upon some newlib header files.
 917 case "${noconfigdirs}" in
 918   *target-libgloss*) ;;
 919   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 920 esac
 921
 922 # Only configure cgen if --enable-cgen-maint.
 923 if [ "x$enable_cgen_maint" != xyes ] ; then
 924     noconfigdirs="$noconfigdirs cgen"
 925 fi
 926
 927 # Make sure we don't let GNU ld be added if we didn't want it.
 928 if [ x$with_gnu_ld = xno ]; then
 929   use_gnu_ld=no
 930   noconfigdirs="$noconfigdirs ld"
 931 fi
 932
 933 # Make sure we don't let GNU as be added if we didn't want it.
 934 if [ x$with_gnu_as = xno ]; then
 935   use_gnu_as=no
 936   noconfigdirs="$noconfigdirs gas"
 937 fi
 938
 939 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
 940 # $target_configdirs.
 941 # If we have the source for $noconfigdirs entries, add them to $notsupp.
 942
 943 notsupp=""
 944 for dir in . $skipdirs $noconfigdirs ; do
 945   dirname=`echo $dir | sed -e s/target-//g`
 946   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 947     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 948     if [ -r $srcdir/$dirname/configure ] \
 949         || [ -r $srcdir/$dirname/configure.in ]; then
 950       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 951         true
 952       else
 953         notsupp="$notsupp $dir"
 954       fi
 955     fi
 956   fi
 957   if [ $dir != . ]  && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 958     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
 959     if [ -r $srcdir/$dirname/configure ] \
 960         || [ -r $srcdir/$dirname/configure.in ]; then
 961       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 962         true
 963       else
 964         notsupp="$notsupp $dir"
 965       fi
 966     fi
 967   fi
 968 done
 969
 970 # Sometimes the tools are distributed with libiberty but with no other
 971 # libraries.  In that case, we don't want to build target-libiberty.
 972 if [ -n "${target_configdirs}" ]; then
 973   others=
 974   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
 975     if [ "$i" != "libiberty" ]; then
 976       if [ -r $srcdir/$i/configure ] || [ -r $srcdir/$i/configure.in ]; then
 977         others=yes;
 978         break;
 979       fi
 980     fi
 981   done
 982   if [ -z "${others}" ]; then
 983     target_configdirs=
 984   fi
 985 fi
 986
 987 # Deconfigure all subdirectories, in case we are changing the
 988 # configuration from one where a subdirectory is supported to one where it
 989 # is not.
 990 if [ -z "${norecursion}" ] && [ -n "${configdirs}" ]; then
 991   for i in `echo ${configdirs} | sed -e s/target-//g` ; do
 992     rm -f $i/Makefile
 993   done
 994 fi
 995 if [ -z "${norecursion}" ] && [ -n "${target_configdirs}" ]; then
 996   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
 997     rm -f ${target_subdir}/$i/Makefile
 998   done
 999 fi
1000
1001 # Produce a warning message for the subdirs we can't configure.
1002 # This isn't especially interesting in the Cygnus tree, but in the individual
1003 # FSF releases, it's important to let people know when their machine isn't
1004 # supported by the one or two programs in a package.
1005
1006 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
1007   # If $appdirs is non-empty, at least one of those directories must still
1008   # be configured, or we error out.  (E.g., if the gas release supports a
1009   # specified target in some subdirs but not the gas subdir, we shouldn't
1010   # pretend that all is well.)
1011   if [ -n "$appdirs" ]; then
1012     for dir in $appdirs ; do
1013       if [ -r $dir/Makefile.in ]; then
1014         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1015           appdirs=""
1016           break
1017         fi
1018         if echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1019           appdirs=""
1020           break
1021         fi
1022       fi
1023     done
1024     if [ -n "$appdirs" ]; then
1025       echo "*** This configuration is not supported by this package." 1>&2
1026       exit 1
1027     fi
1028   fi
1029   # Okay, some application will build, or we don't care to check.  Still
1030   # notify of subdirs not getting built.
1031   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1032   echo "    ${notsupp}" 1>&2
1033   echo "    (Any other directories should still work fine.)" 1>&2
1034 fi
1035
1036 # Set with_gnu_as and with_gnu_ld as appropriate.
1037 #
1038 # This is done by determining whether or not the appropriate directory
1039 # is available, and by checking whether or not specific configurations
1040 # have requested that this magic not happen.
1041 #
1042 # The command line options always override the explicit settings in
1043 # configure.in, and the settings in configure.in override this magic.
1044 #
1045 # If the default for a toolchain is to use GNU as and ld, and you don't
1046 # want to do that, then you should use the --without-gnu-as and
1047 # --without-gnu-ld options for the configure script.
1048
1049 if [ x${use_gnu_as} = x ] ; then
1050   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
1051     with_gnu_as=yes
1052     withoptions="$withoptions --with-gnu-as"
1053   fi
1054 fi
1055
1056 if [ x${use_gnu_ld} = x ] ; then
1057   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
1058     with_gnu_ld=yes
1059     withoptions="$withoptions --with-gnu-ld"
1060   fi
1061 fi
1062
1063 # If using newlib, add --with-newlib to the withoptions so that gcc/configure
1064 # can detect this case.
1065
1066 if [ x${with_newlib} != xno ] && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 && [ -d ${srcdir}/newlib ] ; then
1067   with_newlib=yes
1068   withoptions="$withoptions --with-newlib"
1069 fi
1070
1071 if [ x${shared} = xyes ]; then
1072   case "${target}" in
1073     hppa*)
1074       target_makefile_frag="${target_makefile_frag} config/mt-papic"
1075       ;;
1076     i[3456]86-*)
1077       target_makefile_frag="${target_makefile_frag} config/mt-x86pic"
1078       ;;
1079     ia64-*)
1080       target_makefile_frag="${target_makefile_frag} config/mt-ia64pic"
1081       ;;
1082     powerpc*-*-aix*)
1083       # We don't want -fPIC on AIX.
1084       ;;
1085     powerpc*-*)
1086       target_makefile_frag="${target_makefile_frag} config/mt-ppcpic"
1087       ;;
1088     alpha*-*-linux*)
1089       target_makefile_frag="${target_makefile_frag} config/mt-elfalphapic"
1090       ;;
1091     *)
1092       if test -f ${srcdir}/config/mt-${target_cpu}pic; then
1093         target_makefile_frag="${target_makefile_frag} config/mt-${target_cpu}pic"
1094       fi
1095       ;;
1096   esac
1097 fi
1098
1099 rm -f mt-frag
1100 if [ -n "${target_makefile_frag}" ] ; then
1101   for f in ${target_makefile_frag}
1102   do
1103     cat ${srcdir}/$f >> mt-frag
1104   done
1105   target_makefile_frag=mt-frag
1106 fi
1107
1108 # post-target:
1109
1110 # Make sure that the compiler is able to generate an executable.  If it
1111 # can't, we are probably in trouble.  We don't care whether we can run the
1112 # executable--we might be using a cross compiler--we only care whether it
1113 # can be created.  At this point the main configure script has set CC.
1114 echo "int main () { return 0; }" > conftest.c
1115 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1116 if [ $? = 0 ] && [ -s conftest -o -s conftest.exe ]; then
1117   :
1118 else
1119   echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1120   echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1121   rm -f conftest*
1122   exit 1
1123 fi
1124 rm -f conftest*
1125
1126 # The Solaris /usr/ucb/cc compiler does not appear to work.
1127 case "${host}" in
1128   sparc-sun-solaris2*)
1129       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1130       if [ "`/usr/bin/which $CCBASE`" = "/usr/ucb/cc" ] ; then
1131           could_use=
1132           [ -d /opt/SUNWspro/bin ] && could_use="/opt/SUNWspro/bin"
1133           if [ -d /opt/cygnus/bin ] ; then
1134               if [ "$could_use" = "" ] ; then
1135                   could_use="/opt/cygnus/bin"
1136               else
1137                   could_use="$could_use or /opt/cygnus/bin"
1138               fi
1139           fi
1140         if [ "$could_use" = "" ] ; then
1141             echo "Warning: compilation may fail because you're using"
1142             echo "/usr/ucb/cc.  You should change your PATH or CC "
1143             echo "variable and rerun configure."
1144         else
1145             echo "Warning: compilation may fail because you're using"
1146             echo "/usr/ucb/cc, when you should use the C compiler from"
1147             echo "$could_use.  You should change your"
1148             echo "PATH or CC variable and rerun configure."
1149         fi
1150       fi
1151   ;;
1152 esac
1153
1154 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
1155 # binutils tools will find libbfd.so.
1156 if [ "${shared}" = "yes" ]; then
1157   sed -e 's/^SET_LIB_PATH[      ]*=.*$/SET_LIB_PATH = $(REALLY_SET_LIB_PATH)/' \
1158       Makefile > Makefile.tem
1159   rm -f Makefile
1160   mv -f Makefile.tem Makefile
1161
1162   case "${host}" in
1163   *-*-hpux*)
1164     sed -e 's/^RPATH_ENVVAR[    ]*=.*$/RPATH_ENVVAR = SHLIB_PATH/' \
1165         Makefile > Makefile.tem
1166     rm -f Makefile
1167     mv -f Makefile.tem Makefile
1168     ;;
1169   esac
1170 fi
1171
1172 # Record target_configdirs and the configure arguments in Makefile.
1173 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1174 targargs=`echo "${arguments}" | \
1175         sed -e 's/--no[^        ]*//' \
1176             -e 's/--cache[a-z-]*=[^     ]*//' \
1177             -e 's/--ho[a-z-]*=[^        ]*//' \
1178             -e 's/--bu[a-z-]*=[^        ]*//' \
1179             -e 's/--ta[a-z-]*=[^        ]*//'`
1180
1181 # Passing a --with-cross-host argument lets the target libraries know
1182 # whether they are being built with a cross-compiler or being built
1183 # native.  However, it would be better to use other mechanisms to make the
1184 # sorts of decisions they want to make on this basis.  Please consider
1185 # this option to be deprecated.  FIXME.
1186 if [ x${is_cross_compiler} = xyes ]; then
1187   targargs="--with-cross-host=${host_alias} ${targargs}"
1188 fi
1189
1190 # Default to --enable-multilib.
1191 if [ x${enable_multilib} = x ]; then
1192   targargs="--enable-multilib ${targargs}"
1193 fi
1194
1195 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1196 # changed from the earlier setting of with_newlib.
1197 if [ x${with_newlib} != xno ] && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && [ -d ${srcdir}/newlib ] ; then
1198   targargs="--with-newlib ${targargs}"
1199 fi
1200
1201 # provide a proper gxx_include_dir.
1202 # Note, if you change the default, make sure to fix both here and in
1203 # the gcc, libio, and libstdc++ subdirectories.
1204 # Check whether --with-gxx-include-dir or --without-gxx-include-dir was given.
1205 gxx_include_dir=
1206 if test -n "${with_gxx_include_dir}"; then
1207   case "${with_gxx_include_dir}" in
1208     yes )
1209       echo "configure.in: error: bad value ${withval} given for g++ include directory" 1>&2
1210       exit 1
1211       ;;
1212     no )
1213       ;;
1214     * )
1215       gxx_include_dir=${with_gxx_include_dir}
1216       ;;
1217   esac
1218 fi
1219 if test x${gxx_include_dir} = x; then
1220   if test x${enable_version_specific_runtime_libs} = xyes; then
1221     gxx_include_dir='${libsubdir}/include/g++'
1222   else
1223     . ${topsrcdir}/config.if
1224     gxx_include_dir='${prefix}/include/g++'-${libstdcxx_interface}
1225   fi
1226 else
1227   gxx_include_dir=${gxx_include_dir}
1228 fi
1229
1230 FLAGS_FOR_TARGET=
1231 case " $skipdirs " in
1232 *" target-newlib "*) ;;
1233 *)
1234    case "$target" in
1235    *-cygwin*)
1236      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' ;;
1237    esac
1238
1239    # If we're not building GCC, don't discard standard headers.
1240    if test -d ${topsrcdir}/gcc; then
1241      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1242
1243      if test "${build}" != "${host}"; then
1244        # On Canadian crosses, CC_FOR_TARGET will have already been set
1245        # by `configure', so we won't have an opportunity to add -Bgcc/
1246        # to it.  This is right: we don't want to search that directory
1247        # for binaries, but we want the header files in there, so add
1248        # them explicitly.
1249        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/gcc/include'
1250
1251        # Someone might think of using the pre-installed headers on
1252        # Canadian crosses, in case the installed compiler is not fully
1253        # compatible with the compiler being built.  In this case, it
1254        # would be better to flag an error than risking having
1255        # incompatible object files being constructed.  We can't
1256        # guarantee that an error will be flagged, but let's hope the
1257        # compiler will do it, when presented with incompatible header
1258        # files.
1259      fi
1260    fi
1261
1262    # If we're building newlib, use its generic headers last, but search
1263    # for any libc-related directories first (so make it the last -B
1264    # switch).
1265    FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
1266    ;;
1267 esac
1268
1269 # On Canadian crosses, we'll be searching the right directories for
1270 # the previously-installed cross compiler, so don't bother to add
1271 # flags for directories within the install tree of the compiler
1272 # being built; programs in there won't even run.
1273 if test "${build}" = "${host}" && test -d ${topsrcdir}/gcc; then
1274   # Search for pre-installed headers if nothing else fits.
1275   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include'
1276 fi
1277
1278 if test "x${use_gnu_ld}" = x && test "x${with_gnu_ld}" != xno &&
1279    echo " ${configdirs} " | grep " ld " > /dev/null &&
1280    test -d ${srcdir}/ld; then
1281   # Arrange for us to find uninstalled linker scripts.
1282   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/ld'
1283 fi
1284
1285 if test "x${CC_FOR_TARGET+set}" = xset; then
1286   :
1287 elif test -d ${topsrcdir}/gcc; then
1288   CC_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/'
1289 elif test "$host" = "$target"; then
1290   CC_FOR_TARGET='$(CC)'
1291 else
1292   CC_FOR_TARGET=`echo gcc | sed -e 's/x/x/' ${program_transform_name}`
1293 fi
1294 # On Canadian crosses, configure reads CC_FOR_TARGET from Makefile,
1295 # if Makefile exists.  Prevent $(FLAGS_FOR_TARGET) from being duplicated.
1296 case $CC_FOR_TARGET in
1297 *' $(FLAGS_FOR_TARGET)') ;;
1298 *) CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
1299 esac
1300
1301 if test "x${CHILL_FOR_TARGET+set}" = xset; then
1302   :
1303 elif test -d ${topsrcdir}/gcc; then
1304   CHILL_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/ -L$$r/gcc/ch/runtime/'
1305 elif test "$host" = "$target"; then
1306   CHILL_FOR_TARGET='$(CC)'
1307 else
1308   CHILL_FOR_TARGET=`echo gcc | sed -e 's/x/x/' ${program_transform_name}`
1309 fi
1310 case $CHILL_FOR_TARGET in
1311 *' $(FLAGS_FOR_TARGET)') ;;
1312 *) CHILL_FOR_TARGET=$CHILL_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
1313 esac
1314
1315 if test "x${CXX_FOR_TARGET+set}" = xset; then
1316   :
1317 elif test -d ${topsrcdir}/gcc; then
1318   CXX_FOR_TARGET='$$r/gcc/g++ -B$$r/gcc/ -nostdinc++ '$libstdcxx_flags
1319 elif test "$host" = "$target"; then
1320   CXX_FOR_TARGET='$(CXX)'
1321 else
1322   CXX_FOR_TARGET=`echo c++ | sed -e 's/x/x/' ${program_transform_name}`
1323 fi
1324 case $CXX_FOR_TARGET in
1325 *' $(FLAGS_FOR_TARGET)') ;;
1326 *) CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
1327 esac
1328 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,&,\\\&,g'`
1329
1330 targargs="--cache-file=../config.cache --host=${target_alias} --build=${build_alias} ${targargs}"
1331 sed -e "s:^TARGET_CONFIGDIRS[   ]*=.*$:TARGET_CONFIGDIRS = ${target_configdirs}:" \
1332     -e "s%^CONFIG_ARGUMENTS[    ]*=.*$%CONFIG_ARGUMENTS = ${targargs}%" \
1333     -e "s%^FLAGS_FOR_TARGET[    ]*=.*$%FLAGS_FOR_TARGET = ${FLAGS_FOR_TARGET}%" \
1334     -e "s%^CC_FOR_TARGET[       ]*=.*$%CC_FOR_TARGET = ${CC_FOR_TARGET}%" \
1335     -e "s%^CHILL_FOR_TARGET[    ]*=.*$%CHILL_FOR_TARGET = ${CHILL_FOR_TARGET}%" \
1336     -e "s%^CXX_FOR_TARGET[      ]*=.*$%CXX_FOR_TARGET = ${qCXX_FOR_TARGET}%" \
1337     -e "s%^TARGET_SUBDIR[       ]*=.*$%TARGET_SUBDIR = ${target_subdir}%" \
1338     -e "s%^gxx_include_dir[     ]*=.*$%gxx_include_dir=${gxx_include_dir}%" \
1339        Makefile > Makefile.tem
1340 rm -f Makefile
1341 mv -f Makefile.tem Makefile
1342
1343 #
1344 # Local Variables:
1345 # fill-column: 131
1346 # End:
1347 #