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 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 case "${target}" in
 576   *-*-netware)
 577     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-newlib target-libiberty target-libgloss target-libffi"
 578     ;;
 579   *-*-rtems*)
 580     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 581     ;;
 582   *-*-vxworks*)
 583     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libffi"
 584     ;;
 585   alpha*-dec-osf*)
 586     # ld works, but does not support shared libraries.  emacs doesn't
 587     # work.  newlib is not 64 bit ready.  I'm not sure about fileutils.
 588     # gas doesn't generate exception information.
 589     noconfigdirs="$noconfigdirs gas ld emacs fileutils target-newlib target-libgloss"
 590     ;;
 591   alpha*-*-*vms*)
 592     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss target-libffi"
 593     ;;
 594   alpha*-*-*)
 595     # newlib is not 64 bit ready
 596     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 597     ;;
 598   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 599     noconfigdirs="$noconfigdirs target-libjava target-libffi target-zlib"
 600     noconfigdirs="$noconfigdirs target-boehm-gc target-qthreads target-examples"
 601     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 602     noconfigdirs="$noconfigdirs tcl tix tk itcl libgui sim"
 603     noconfigdirs="$noconfigdirs expect dejagnu"
 604     # the C++ libraries don't build on top of CE's C libraries
 605     noconfigdirs="$noconfigdirs ${libstdcxx_version}"
 606     skipdirs="$skipdirs target-newlib"
 607     case "${host}" in
 608       *-*-cygwin*) ;; # keep gdb and readline
 609       *) noconfigdirs="$noconfigdirs gdb readline ${libstdcxx_version}"
 610          ;;
 611     esac
 612     ;;
 613   arc-*-*)
 614     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 615     ;;
 616   arm-*-pe*)
 617     noconfigdirs="$noconfigdirs target-libgloss"
 618     ;;
 619   arm-*-coff*)
 620     noconfigdirs="$noconfigdirs target-libgloss"
 621     if [ x${is_cross_compiler} != xno ] ; then
 622            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 623     fi
 624     ;;
 625   arm-*-elf*)
 626     noconfigdirs="$noconfigdirs target-libgloss"
 627     if [ x${is_cross_compiler} != xno ] ; then
 628            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 629     fi
 630     ;;
 631   arm-*-oabi*)
 632     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 633     ;;
 634   thumb-*-coff)
 635     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 636     ;;
 637   thumb-*-elf)
 638     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 639     ;;
 640   thumb-*-oabi)
 641     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 642     ;;
 643   strongarm-*-elf)
 644     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 645     if [ x${is_cross_compiler} != xno ] ; then
 646            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 647     fi
 648     ;;
 649   strongarm-*-coff)
 650     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 651     if [ x${is_cross_compiler} != xno ] ; then
 652            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 653     fi
 654     ;;
 655   xscale-*-elf)
 656     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 657     if [ x${is_cross_compiler} != xno ] ; then
 658            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 659     fi
 660     ;;
 661   xscale-*-coff)
 662     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 663     if [ x${is_cross_compiler} != xno ] ; then
 664            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 665     fi
 666     ;;
 667   thumb-*-pe)
 668     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 669     ;;
 670   arm-*-riscix*)
 671     noconfigdirs="$noconfigdirs ld target-libgloss target-libffi"
 672     ;;
 673   c4x-*-*)
 674     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi"
 675     ;;
 676   c54x*-*-* | tic54x-*-*)
 677     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi gcc gdb newlib"
 678     ;;
 679   d10v-*-*)
 680     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi"
 681     ;;
 682   d30v-*-*)
 683     ;;
 684   fr30-*-elf*)
 685     if [ x${is_cross_compiler} != xno ] ; then
 686            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 687     fi
 688     ;;
 689   h8300*-*-* | \
 690   h8500-*-*)
 691     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi"
 692     ;;
 693   hppa*-*-*elf* | \
 694   hppa*-*-linux-gnu* | \
 695   hppa*-*-lites* | \
 696   hppa*64*-*-*)
 697     # Do configure ld/binutils/gas for this case.
 698     ;;
 699   hppa*-*-*)
 700     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 701     # cc is gcc, and on any system a user should be able to link cc to
 702     # whatever they want.  FIXME, emacs emacs19).
 703     case "${CC}" in
 704         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 705         *) ;;
 706     esac
 707     noconfigdirs="$noconfigdirs ld shellutils"
 708     ;;
 709   ia64*-*-elf*)
 710     # No gdb support yet.
 711     noconfigdirs="$noconfigdirs tix readline mmalloc libgui itcl gdb"
 712     ;;
 713   i[3456]86-*-coff | i[3456]86-*-elf)
 714     if [ x${is_cross_compiler} != xno ] ; then
 715          target_configdirs="${target_configdirs} target-libstub target-cygmon"
 716     fi
 717     ;;
 718   i[3456]86-*-go32* | i[3456]-*-msdosdjgpp*)
 719     # but don't build gdb
 720     noconfigdirs="$noconfigdirs gdb ${libstdcxx_version} target-libffi"
 721     ;;
 722   i[3456]86-*-mingw32*)
 723     target_configdirs="$target_configdirs target-mingw"
 724     noconfigdirs="$noconfigdirs expect target-libgloss target-libffi"
 725
 726     # Can't build gdb for mingw32 if not native.
 727     case "${host}" in
 728       i[3456]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 729       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix db snavigator gnuserv"
 730          ;;
 731     esac
 732     ;;
 733   *-*-cygwin*)
 734     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 735     noconfigdirs="$noconfigdirs target-gperf target-libgloss target-libffi"
 736     # always build newlib.
 737     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 738
 739     # Can't build gdb for Cygwin if not native.
 740     case "${host}" in
 741       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 742       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl tix libgui db snavigator gnuserv"
 743          ;;
 744     esac
 745     ;;
 746   i[3456]86-*-pe)
 747     noconfigdirs="$noconfigdirs ${libstdcxx_version} target-libgloss target-libffi"
 748     ;;
 749   i[3456]86-*-sco3.2v5*)
 750     # The linker does not yet know about weak symbols in COFF,
 751     # and is not configured to handle mixed ELF and COFF.
 752     noconfigdirs="$noconfigdirs ld target-libgloss target-libffi"
 753     ;;
 754   i[3456]86-*-sco*)
 755     noconfigdirs="$noconfigdirs gprof target-libgloss target-libffi"
 756     ;;
 757   i[3456]86-*-solaris2*)
 758     noconfigdirs="$noconfigdirs target-libgloss"
 759     ;;
 760   i[3456]86-*-sysv4*)
 761     # The SYSV4 C compiler doesn't handle Emacs correctly
 762     case "${CC}" in
 763         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 764         *) ;;
 765     esac
 766     # but that's okay since emacs doesn't work anyway
 767     noconfigdirs="$noconfigdirs emacs emacs19 target-libgloss target-libffi"
 768     ;;
 769   i[3456]86-*-beos*)
 770      noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 771      ;;
 772  m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 773     noconfigdirs="$noconfigdirs target-libiberty target-librx target-libg++ target-libstdc++ target-libio target-libf2c target-libchill target-zlib target-libobjc"
 774     ;;
 775  m68k-*-elf*)
 776     if [ x${is_cross_compiler} != xno ] ; then
 777            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 778     fi
 779     ;;
 780   m68k-*-coff*)
 781     if [ x${is_cross_compiler} != xno ] ; then
 782            target_configdirs="${target_configdirs} target-bsp target-cygmon"
 783     fi
 784     ;;
 785   mn10200-*-*)
 786     noconfigdirs="$noconfigdirs target-libffi"
 787     if [ x${is_cross_compiler} != xno ] ; then
 788            target_configdirs="${target_configdirs} target-libstub target-cygmon"
 789     fi
 790     ;;
 791   mn10300-*-*)
 792     noconfigdirs="$noconfigdirs target-libffi"
 793     if [ x${is_cross_compiler} != xno ] ; then
 794            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 795     fi
 796     ;;
 797   powerpc-*-aix*)
 798     # copied from rs6000-*-* entry
 799     # The configure and build of ld are currently disabled because
 800     # GNU ld is known to be broken for AIX 4.2 and 4.3 (at least)
 801     # The symptom is that GDBtk 4.18 fails at startup with a segfault
 802     # if linked by GNU ld, but not if linked by the native ld.
 803     noconfigdirs="$noconfigdirs gprof cvssrc target-libgloss target-libffi ld"
 804     use_gnu_ld=no
 805     ;;
 806   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 807     target_configdirs="$target_configdirs target-winsup"
 808     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl tix db snavigator gnuserv target-libffi"
 809     # always build newlib.
 810     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 811     ;;
 812     # This is temporary until we can link against shared libraries
 813   powerpcle-*-solaris*)
 814     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl tix db snavigator gnuserv target-libffi"
 815     ;;
 816   powerpc-*-beos*)
 817     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 818     ;;
 819   powerpc-*-eabi)
 820     if [ x${is_cross_compiler} != xno ] ; then
 821            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 822     fi
 823     ;;
 824   rs6000-*-lynxos*)
 825     # The CVS server code doesn't work on the RS/6000
 826     noconfigdirs="$noconfigdirs target-newlib gprof cvssrc target-libffi"
 827     ;;
 828   rs6000-*-aix*)
 829     # The configure and build of ld are currently disabled because
 830     # GNU ld is known to be broken for AIX 4.2 and 4.3 (at least)
 831     # The symptom is that GDBtk 4.18 fails at startup with a segfault
 832     # if linked by GNU ld, but not if linked by the native ld.
 833     noconfigdirs="$noconfigdirs gprof target-libffi ld"
 834     use_gnu_ld=no
 835     ;;
 836   rs6000-*-*)
 837     noconfigdirs="$noconfigdirs gprof target-libffi"
 838     ;;
 839   m68k-apollo-*)
 840     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss target-libffi"
 841     ;;
 842   mips*-*-irix5*)
 843     # The GNU linker does not support shared libraries.
 844     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 845     noconfigdirs="$noconfigdirs ld gprof emacs target-libgloss"
 846     ;;
 847   mips*-*-irix6*)
 848     # The GNU assembler does not support IRIX 6.
 849     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 850     noconfigdirs="$noconfigdirs gas gprof emacs target-libgloss"
 851     ;;
 852   mips*-dec-bsd*)
 853     noconfigdirs="$noconfigdirs gprof target-libgloss target-libffi"
 854     ;;
 855   mips*-*-bsd*)
 856     noconfigdirs="$noconfigdirs gprof target-libgloss target-libffi"
 857     ;;
 858   mipstx39-*-*)
 859     noconfigdirs="$noconfigdirs gprof target-libffi"   # same as generic mips
 860     target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 861    ;;
 862   mips*-*-*)
 863     noconfigdirs="$noconfigdirs gprof target-libffi"
 864     ;;
 865   romp-*-*)
 866     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss target-libffi"
 867     ;;
 868   sh-*-*)
 869     case "${host}" in
 870       i[3456]86-*-vsta) ;; # don't add gprof back in
 871       i[3456]86-*-go32*) ;; # don't add gprof back in
 872       i[3456]86-*-msdosdjgpp*) ;; # don't add gprof back in
 873       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 874     esac
 875     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 876     ;;
 877   sparc-*-elf*)
 878     if [ x${is_cross_compiler} != xno ] ; then
 879            target_configdirs="${target_configdirs} target-libstub target-cygmon"
 880     fi
 881     ;;
 882   sparc64-*-elf*)
 883     if [ x${is_cross_compiler} != xno ] ; then
 884            target_configdirs="${target_configdirs} target-libstub target-cygmon"
 885     fi
 886     noconfigdirs="target-libffi"
 887     ;;
 888   sparclite-*-*)
 889     if [ x${is_cross_compiler} != xno ] ; then
 890            target_configdirs="${target_configdirs} target-bsp target-libstub target-cygmon"
 891     fi
 892     noconfigdirs="target-libffi"
 893     ;;
 894   sparc-*-sunos4*)
 895     if [ x${is_cross_compiler} != xno ] ; then
 896            noconfigdirs="$noconfigdirs gdb gdbtest target-newlib target-libgloss"
 897     else
 898            use_gnu_ld=no
 899     fi
 900     ;;
 901   v810-*-*)
 902     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld ${libstdcxx_version} opcodes target-libgloss target-libffi"
 903     ;;
 904   v850-*-*)
 905     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 906     ;;
 907   v850e-*-*)
 908     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 909     ;;
 910   v850ea-*-*)
 911     noconfigdirs="$noconfigdirs target-libgloss target-libffi"
 912     ;;
 913   vax-*-vms)
 914     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss target-libffi"
 915     ;;
 916   vax-*-*)
 917     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libffi"
 918     ;;
 919   *-*-lynxos*)
 920     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libffi"
 921     ;;
 922   *-*-macos* | \
 923   *-*-mpw*)
 924     # Macs want a resource compiler.
 925     configdirs="$configdirs grez"
 926     noconfigdirs="target-libffi"
 927     ;;
 928 esac
 929
 930 # If we aren't building newlib, then don't build libgloss, since libgloss
 931 # depends upon some newlib header files.
 932 case "${noconfigdirs}" in
 933   *target-libgloss*) ;;
 934   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 935 esac
 936
 937 # Make sure we don't let GNU ld be added if we didn't want it.
 938 if [ x$with_gnu_ld = xno ]; then
 939   use_gnu_ld=no
 940   noconfigdirs="$noconfigdirs ld"
 941 fi
 942
 943 # Make sure we don't let GNU as be added if we didn't want it.
 944 if [ x$with_gnu_as = xno ]; then
 945   use_gnu_as=no
 946   noconfigdirs="$noconfigdirs gas"
 947 fi
 948
 949 # Figure out what language subdirectories are present.
 950 # Look if the user specified --enable-languages="..."; if not, use
 951 # the environment variable $LANGUAGES if defined. $LANGUAGES might
 952 # go away some day.
 953 if test x"${enable_languages+set}" != xset; then
 954         if test x"${LANGUAGES+set}" = xset; then
 955                 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
 956         else
 957                 enable_languages=all
 958         fi
 959 else
 960         if test x"${enable_languages}" = x; then
 961                 echo configure.in: --enable-languages needs at least one argument 1>&2
 962                 exit 1
 963         fi
 964 fi
 965 subdirs=
 966 for lang in ${srcdir}/gcc/*/config-lang.in ..
 967 do
 968         case $lang in
 969         ..) ;;
 970         # The odd quoting in the next line works around
 971         # an apparent bug in bash 1.12 on linux.
 972         ${srcdir}/gcc/[*]/config-lang.in) ;;
 973         *)
 974           lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^   ]*\).*$,\1,p' $lang`
 975           this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^         ]*\).*$,\1,p' $lang`
 976           build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^     ]*\).*$,\1,p' $lang`
 977           if test "x$lang_alias" = x
 978           then
 979                 echo "$lang doesn't set \$language." 1>&2
 980                 exit 1
 981           fi
 982           case ${build_by_default},${enable_languages}, in
 983           *,$lang_alias,*) add_this_lang=yes ;;
 984           no,*) add_this_lang=no ;;
 985           *,all,*) add_this_lang=yes ;;
 986           *) add_this_lang=no ;;
 987           esac
 988           if test x"${add_this_lang}" = xyes; then
 989               eval target_libs='"$target_libs "'\"$this_lang_libs\"
 990           else
 991               eval noconfigdirs='"$noconfigdirs "'\"$this_lang_libs\"
 992           fi
 993           ;;
 994         esac
 995 done
 996
 997
 998 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
 999 # $target_configdirs.
1000 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1001
1002 notsupp=""
1003 for dir in . $skipdirs $noconfigdirs ; do
1004   dirname=`echo $dir | sed -e s/target-//g`
1005   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1006     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1007     if [ -r $srcdir/$dirname/configure ] \
1008         || [ -r $srcdir/$dirname/configure.in ]; then
1009       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1010         true
1011       else
1012         notsupp="$notsupp $dir"
1013       fi
1014     fi
1015   fi
1016   if [ $dir != . ]  && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1017     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1018     if [ -r $srcdir/$dirname/configure ] \
1019         || [ -r $srcdir/$dirname/configure.in ]; then
1020       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1021         true
1022       else
1023         notsupp="$notsupp $dir"
1024       fi
1025     fi
1026   fi
1027 done
1028
1029 # Sometimes the tools are distributed with libiberty but with no other
1030 # libraries.  In that case, we don't want to build target-libiberty.
1031 if [ -n "${target_configdirs}" ]; then
1032   others=
1033   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1034     if [ "$i" != "libiberty" ]; then
1035       if [ -r $srcdir/$i/configure ] || [ -r $srcdir/$i/configure.in ]; then
1036         others=yes;
1037         break;
1038       fi
1039     fi
1040   done
1041   if [ -z "${others}" ]; then
1042     target_configdirs=
1043   fi
1044 fi
1045
1046 # Deconfigure all subdirectories, in case we are changing the
1047 # configuration from one where a subdirectory is supported to one where it
1048 # is not.
1049 if [ -z "${norecursion}" ] && [ -n "${configdirs}" ]; then
1050   for i in `echo ${configdirs} | sed -e s/target-//g` ; do
1051     rm -f $i/Makefile
1052   done
1053 fi
1054 if [ -z "${norecursion}" ] && [ -n "${target_configdirs}" ]; then
1055   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1056     rm -f ${target_subdir}/$i/Makefile
1057   done
1058 fi
1059
1060 # Produce a warning message for the subdirs we can't configure.
1061 # This isn't especially interesting in the Cygnus tree, but in the individual
1062 # FSF releases, it's important to let people know when their machine isn't
1063 # supported by the one or two programs in a package.
1064
1065 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
1066   # If $appdirs is non-empty, at least one of those directories must still
1067   # be configured, or we error out.  (E.g., if the gas release supports a
1068   # specified target in some subdirs but not the gas subdir, we shouldn't
1069   # pretend that all is well.)
1070   if [ -n "$appdirs" ]; then
1071     for dir in $appdirs ; do
1072       if [ -r $dir/Makefile.in ]; then
1073         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1074           appdirs=""
1075           break
1076         fi
1077         if echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1078           appdirs=""
1079           break
1080         fi
1081       fi
1082     done
1083     if [ -n "$appdirs" ]; then
1084       echo "*** This configuration is not supported by this package." 1>&2
1085       exit 1
1086     fi
1087   fi
1088   # Okay, some application will build, or we don't care to check.  Still
1089   # notify of subdirs not getting built.
1090   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1091   echo "    ${notsupp}" 1>&2
1092   echo "    (Any other directories should still work fine.)" 1>&2
1093 fi
1094
1095 # Set with_gnu_as and with_gnu_ld as appropriate.
1096 #
1097 # This is done by determining whether or not the appropriate directory
1098 # is available, and by checking whether or not specific configurations
1099 # have requested that this magic not happen.
1100 #
1101 # The command line options always override the explicit settings in
1102 # configure.in, and the settings in configure.in override this magic.
1103 #
1104 # If the default for a toolchain is to use GNU as and ld, and you don't
1105 # want to do that, then you should use the --without-gnu-as and
1106 # --without-gnu-ld options for the configure script.
1107
1108 if [ x${use_gnu_as} = x ] ; then
1109   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
1110     with_gnu_as=yes
1111     withoptions="$withoptions --with-gnu-as"
1112   fi
1113 fi
1114
1115 if [ x${use_gnu_ld} = x ] ; then
1116   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
1117     with_gnu_ld=yes
1118     withoptions="$withoptions --with-gnu-ld"
1119   fi
1120 fi
1121
1122 # If using newlib, add --with-newlib to the withoptions so that gcc/configure
1123 # can detect this case.
1124
1125 if [ x${with_newlib} != xno ] && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 && [ -d ${srcdir}/newlib ] ; then
1126   with_newlib=yes
1127   withoptions="$withoptions --with-newlib"
1128 fi
1129
1130 if [ x${shared} = xyes ]; then
1131   case "${target}" in
1132     hppa*)
1133       target_makefile_frag="${target_makefile_frag} config/mt-papic"
1134       ;;
1135     i[3456]86-*)
1136       target_makefile_frag="${target_makefile_frag} config/mt-x86pic"
1137       ;;
1138     ia64-*)
1139       target_makefile_frag="${target_makefile_frag} config/mt-ia64pic"
1140       ;;
1141     powerpc*-*-aix*)
1142       # We don't want -fPIC on AIX.
1143       ;;
1144     powerpc*-*)
1145       target_makefile_frag="${target_makefile_frag} config/mt-ppcpic"
1146       ;;
1147     alpha*-*-linux*)
1148       target_makefile_frag="${target_makefile_frag} config/mt-elfalphapic"
1149       ;;
1150     *)
1151       if test -f ${srcdir}/config/mt-${target_cpu}pic; then
1152         target_makefile_frag="${target_makefile_frag} config/mt-${target_cpu}pic"
1153       fi
1154       ;;
1155   esac
1156 fi
1157
1158 rm -f mt-frag
1159 if [ -n "${target_makefile_frag}" ] ; then
1160   for f in ${target_makefile_frag}
1161   do
1162     cat ${srcdir}/$f >> mt-frag
1163   done
1164   target_makefile_frag=mt-frag
1165 fi
1166
1167 # post-target:
1168
1169 # Make sure that the compiler is able to generate an executable.  If it
1170 # can't, we are probably in trouble.  We don't care whether we can run the
1171 # executable--we might be using a cross compiler--we only care whether it
1172 # can be created.  At this point the main configure script has set CC.
1173 echo "int main () { return 0; }" > conftest.c
1174 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1175 if [ $? = 0 ] && [ -s conftest -o -s conftest.exe ]; then
1176   :
1177 else
1178   echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1179   echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1180   rm -f conftest*
1181   exit 1
1182 fi
1183 rm -f conftest*
1184
1185 # The Solaris /usr/ucb/cc compiler does not appear to work.
1186 case "${host}" in
1187   sparc-sun-solaris2*)
1188       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1189       if [ "`/usr/bin/which $CCBASE`" = "/usr/ucb/cc" ] ; then
1190           could_use=
1191           [ -d /opt/SUNWspro/bin ] && could_use="/opt/SUNWspro/bin"
1192           if [ -d /opt/cygnus/bin ] ; then
1193               if [ "$could_use" = "" ] ; then
1194                   could_use="/opt/cygnus/bin"
1195               else
1196                   could_use="$could_use or /opt/cygnus/bin"
1197               fi
1198           fi
1199         if [ "$could_use" = "" ] ; then
1200             echo "Warning: compilation may fail because you're using"
1201             echo "/usr/ucb/cc.  You should change your PATH or CC "
1202             echo "variable and rerun configure."
1203         else
1204             echo "Warning: compilation may fail because you're using"
1205             echo "/usr/ucb/cc, when you should use the C compiler from"
1206             echo "$could_use.  You should change your"
1207             echo "PATH or CC variable and rerun configure."
1208         fi
1209       fi
1210   ;;
1211 esac
1212
1213 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
1214 # binutils tools will find libbfd.so.
1215 if [ "${shared}" = "yes" ]; then
1216   sed -e 's/^SET_LIB_PATH[      ]*=.*$/SET_LIB_PATH = $(REALLY_SET_LIB_PATH)/' \
1217       Makefile > Makefile.tem
1218   rm -f Makefile
1219   mv -f Makefile.tem Makefile
1220
1221   case "${host}" in
1222   *-*-hpux*)
1223     sed -e 's/^RPATH_ENVVAR[    ]*=.*$/RPATH_ENVVAR = SHLIB_PATH/' \
1224         Makefile > Makefile.tem
1225     rm -f Makefile
1226     mv -f Makefile.tem Makefile
1227     ;;
1228   esac
1229 fi
1230
1231 # Record target_configdirs and the configure arguments in Makefile.
1232 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1233 targargs=`echo "${arguments}" | \
1234         sed -e 's/--no[^        ]*//' \
1235             -e 's/--cache[a-z-]*=[^     ]*//' \
1236             -e 's/--ho[a-z-]*=[^        ]*//' \
1237             -e 's/--bu[a-z-]*=[^        ]*//' \
1238             -e 's/--ta[a-z-]*=[^        ]*//'`
1239
1240 # Passing a --with-cross-host argument lets the target libraries know
1241 # whether they are being built with a cross-compiler or being built
1242 # native.  However, it would be better to use other mechanisms to make the
1243 # sorts of decisions they want to make on this basis.  Please consider
1244 # this option to be deprecated.  FIXME.
1245 if [ x${is_cross_compiler} = xyes ]; then
1246   targargs="--with-cross-host=${host_alias} ${targargs}"
1247 fi
1248
1249 # Default to --enable-multilib.
1250 if [ x${enable_multilib} = x ]; then
1251   targargs="--enable-multilib ${targargs}"
1252 fi
1253
1254 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1255 # changed from the earlier setting of with_newlib.
1256 if [ x${with_newlib} != xno ] && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && [ -d ${srcdir}/newlib ] ; then
1257   targargs="--with-newlib ${targargs}"
1258 fi
1259
1260 # provide a proper gxx_include_dir.
1261 # Note, if you change the default, make sure to fix both here and in
1262 # the gcc, libio, and libstdc++ subdirectories.
1263 # Check whether --with-gxx-include-dir or --without-gxx-include-dir was given.
1264 gxx_include_dir=
1265 if test -n "${with_gxx_include_dir}"; then
1266   case "${with_gxx_include_dir}" in
1267     yes )
1268       echo "configure.in: error: bad value ${withval} given for g++ include directory" 1>&2
1269       exit 1
1270       ;;
1271     no )
1272       ;;
1273     * )
1274       gxx_include_dir=${with_gxx_include_dir}
1275       ;;
1276   esac
1277 fi
1278 if test x${gxx_include_dir} = x; then
1279   if test x${enable_version_specific_runtime_libs} = xyes; then
1280     gxx_include_dir='${libsubdir}/include/g++'
1281   else
1282     . ${topsrcdir}/config.if
1283     gxx_include_dir='${prefix}/include/g++'-${libstdcxx_interface}
1284   fi
1285 else
1286   gxx_include_dir=${gxx_include_dir}
1287 fi
1288
1289 FLAGS_FOR_TARGET=
1290 case " $skipdirs " in
1291 *" target-newlib "*) ;;
1292 *)
1293    case "$target" in
1294    *-cygwin*)
1295      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' ;;
1296    esac
1297
1298    # If we're not building GCC, don't discard standard headers.
1299    if test -d ${topsrcdir}/gcc; then
1300      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1301
1302      if test "${build}" != "${host}"; then
1303        # On Canadian crosses, CC_FOR_TARGET will have already been set
1304        # by `configure', so we won't have an opportunity to add -Bgcc/
1305        # to it.  This is right: we don't want to search that directory
1306        # for binaries, but we want the header files in there, so add
1307        # them explicitly.
1308        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/gcc/include'
1309
1310        # Someone might think of using the pre-installed headers on
1311        # Canadian crosses, in case the installed compiler is not fully
1312        # compatible with the compiler being built.  In this case, it
1313        # would be better to flag an error than risking having
1314        # incompatible object files being constructed.  We can't
1315        # guarantee that an error will be flagged, but let's hope the
1316        # compiler will do it, when presented with incompatible header
1317        # files.
1318      fi
1319    fi
1320
1321    # If we're building newlib, use its generic headers last, but search
1322    # for any libc-related directories first (so make it the last -B
1323    # switch).
1324    FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
1325    ;;
1326 esac
1327
1328 # On Canadian crosses, we'll be searching the right directories for
1329 # the previously-installed cross compiler, so don't bother to add
1330 # flags for directories within the install tree of the compiler
1331 # being built; programs in there won't even run.
1332 if test "${build}" = "${host}" && test -d ${topsrcdir}/gcc; then
1333   # Search for pre-installed headers if nothing else fits.
1334   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include'
1335 fi
1336
1337 if test "x${use_gnu_ld}" = x && test "x${with_gnu_ld}" != xno &&
1338    echo " ${configdirs} " | grep " ld " > /dev/null &&
1339    test -d ${srcdir}/ld; then
1340   # Arrange for us to find uninstalled linker scripts.
1341   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/ld'
1342 fi
1343
1344 if test "x${CC_FOR_TARGET+set}" = xset; then
1345   :
1346 elif test -d ${topsrcdir}/gcc; then
1347   CC_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/'
1348 elif test "$host" = "$target"; then
1349   CC_FOR_TARGET='$(CC)'
1350 else
1351   CC_FOR_TARGET=`echo gcc | sed -e 's/x/x/' ${program_transform_name}`
1352 fi
1353 # On Canadian crosses, configure reads CC_FOR_TARGET from Makefile,
1354 # if Makefile exists.  Prevent $(FLAGS_FOR_TARGET) from being duplicated.
1355 case $CC_FOR_TARGET in
1356 *' $(FLAGS_FOR_TARGET)') ;;
1357 *) CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
1358 esac
1359
1360 if test "x${CHILL_FOR_TARGET+set}" = xset; then
1361   :
1362 elif test -d ${topsrcdir}/gcc; then
1363   CHILL_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/ -L$$r/gcc/ch/runtime/'
1364 elif test "$host" = "$target"; then
1365   CHILL_FOR_TARGET='$(CC)'
1366 else
1367   CHILL_FOR_TARGET=`echo gcc | sed -e 's/x/x/' ${program_transform_name}`
1368 fi
1369 case $CHILL_FOR_TARGET in
1370 *' $(FLAGS_FOR_TARGET)') ;;
1371 *) CHILL_FOR_TARGET=$CHILL_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
1372 esac
1373
1374 if test "x${CXX_FOR_TARGET+set}" = xset; then
1375   :
1376 elif test -d ${topsrcdir}/gcc; then
1377   CXX_FOR_TARGET='$$r/gcc/g++ -B$$r/gcc/ -nostdinc++ '$libstdcxx_flags
1378 elif test "$host" = "$target"; then
1379   CXX_FOR_TARGET='$(CXX)'
1380 else
1381   CXX_FOR_TARGET=`echo c++ | sed -e 's/x/x/' ${program_transform_name}`
1382 fi
1383 case $CXX_FOR_TARGET in
1384 *' $(FLAGS_FOR_TARGET)') ;;
1385 *) CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
1386 esac
1387 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,&,\\\&,g'`
1388
1389 targargs="--cache-file=../config.cache --host=${target_alias} --build=${build_alias} ${targargs}"
1390 sed -e "s:^TARGET_CONFIGDIRS[   ]*=.*$:TARGET_CONFIGDIRS = ${target_configdirs}:" \
1391     -e "s%^CONFIG_ARGUMENTS[    ]*=.*$%CONFIG_ARGUMENTS = ${targargs}%" \
1392     -e "s%^FLAGS_FOR_TARGET[    ]*=.*$%FLAGS_FOR_TARGET = ${FLAGS_FOR_TARGET}%" \
1393     -e "s%^CC_FOR_TARGET[       ]*=.*$%CC_FOR_TARGET = ${CC_FOR_TARGET}%" \
1394     -e "s%^CHILL_FOR_TARGET[    ]*=.*$%CHILL_FOR_TARGET = ${CHILL_FOR_TARGET}%" \
1395     -e "s%^CXX_FOR_TARGET[      ]*=.*$%CXX_FOR_TARGET = ${qCXX_FOR_TARGET}%" \
1396     -e "s%^TARGET_SUBDIR[       ]*=.*$%TARGET_SUBDIR = ${target_subdir}%" \
1397     -e "s%^gxx_include_dir[     ]*=.*$%gxx_include_dir=${gxx_include_dir}%" \
1398        Makefile > Makefile.tem
1399 rm -f Makefile
1400 mv -f Makefile.tem Makefile
1401
1402 #
1403 # Local Variables:
1404 # fill-column: 131
1405 # End:
1406 #