configure.in

基于4个mips核的noc设计

  done
fi

# Produce a warning message for the subdirs we can't configure.
# This isn't especially interesting in the Cygnus tree, but in the individual
# FSF releases, it's important to let people know when their machine isn't
# supported by the one or two programs in a package.

if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
  # If $appdirs is non-empty, at least one of those directories must still
  # be configured, or we error out.  (E.g., if the gas release supports a
  # specified target in some subdirs but not the gas subdir, we shouldn't
  # pretend that all is well.)
  if [ -n "$appdirs" ]; then
    for dir in $appdirs ; do
      if [ -r $dir/Makefile.in ]; then
	if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
	  appdirs=""
	  break
	fi
	if echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
	  appdirs=""
	  break
	fi
      fi
    done
    if [ -n "$appdirs" ]; then
      echo "*** This configuration is not supported by this package." 1>&2
      exit 1
    fi
  fi
  # Okay, some application will build, or we don't care to check.  Still
  # notify of subdirs not getting built.
  echo "*** This configuration is not supported in the following subdirectories:" 1>&2
  echo "    ${notsupp}" 1>&2
  echo "    (Any other directories should still work fine.)" 1>&2
fi

# Set with_gnu_as and with_gnu_ld as appropriate.
#
# This is done by determining whether or not the appropriate directory
# is available, and by checking whether or not specific configurations
# have requested that this magic not happen.
# 
# The command line options always override the explicit settings in 
# configure.in, and the settings in configure.in override this magic.
#
# If the default for a toolchain is to use GNU as and ld, and you don't 
# want to do that, then you should use the --without-gnu-as and
# --without-gnu-ld options for the configure script.

if [ x${use_gnu_as} = x ] ; then
  if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
    with_gnu_as=yes
    withoptions="$withoptions --with-gnu-as"
  fi
fi

if [ x${use_gnu_ld} = x ] ; then
  if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
    with_gnu_ld=yes
    withoptions="$withoptions --with-gnu-ld"
  fi
fi

# If using newlib, add --with-newlib to the withoptions so that gcc/configure
# can detect this case.

if [ x${with_newlib} != xno ] && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 && [ -d ${srcdir}/newlib ] ; then
  with_newlib=yes
  withoptions="$withoptions --with-newlib"
fi

if [ x${shared} = xyes ]; then
  case "${target}" in
    hppa*)
      target_makefile_frag="${target_makefile_frag} config/mt-papic"
      ;;
    i[3456]86-*)
      target_makefile_frag="${target_makefile_frag} config/mt-x86pic"
      ;;
    ia64-*)
      target_makefile_frag="${target_makefile_frag} config/mt-ia64pic"
      ;;
    powerpc*-*-aix*)
      # We don't want -fPIC on AIX.
      ;;
    powerpc*-*)
      target_makefile_frag="${target_makefile_frag} config/mt-ppcpic"
      ;;
    alpha*-*-linux*)
      target_makefile_frag="${target_makefile_frag} config/mt-elfalphapic"
      ;;
    *)
      if test -f ${srcdir}/config/mt-${target_cpu}pic; then
        target_makefile_frag="${target_makefile_frag} config/mt-${target_cpu}pic"
      fi
      ;;
  esac
fi

rm -f mt-frag
if [ -n "${target_makefile_frag}" ] ; then
  for f in ${target_makefile_frag}
  do
    cat ${srcdir}/$f >> mt-frag
  done
  target_makefile_frag=mt-frag
fi

# post-target:

# Make sure that the compiler is able to generate an executable.  If it
# can't, we are probably in trouble.  We don't care whether we can run the
# executable--we might be using a cross compiler--we only care whether it
# can be created.  At this point the main configure script has set CC.
echo "int main () { return 0; }" > conftest.c
${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
if [ $? = 0 ] && [ -s conftest -o -s conftest.exe ]; then
  :
else
  echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
  echo 1>&2 "*** You must set the environment variable CC to a working compiler."
  rm -f conftest*
  exit 1
fi
rm -f conftest*

# The Solaris /usr/ucb/cc compiler does not appear to work.
case "${host}" in
  sparc-sun-solaris2*)
      CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
      if [ "`/usr/bin/which $CCBASE`" = "/usr/ucb/cc" ] ; then
          could_use=
          [ -d /opt/SUNWspro/bin ] && could_use="/opt/SUNWspro/bin"
          if [ -d /opt/cygnus/bin ] ; then
              if [ "$could_use" = "" ] ; then
                  could_use="/opt/cygnus/bin"
              else
                  could_use="$could_use or /opt/cygnus/bin"
              fi
          fi
        if [ "$could_use" = "" ] ; then
            echo "Warning: compilation may fail because you're using"
            echo "/usr/ucb/cc.  You should change your PATH or CC "
            echo "variable and rerun configure."
        else
            echo "Warning: compilation may fail because you're using"
            echo "/usr/ucb/cc, when you should use the C compiler from"
            echo "$could_use.  You should change your"
            echo "PATH or CC variable and rerun configure."
        fi
      fi
  ;;
esac

# If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
# binutils tools will find libbfd.so.
if [ "${shared}" = "yes" ]; then
  sed -e 's/^SET_LIB_PATH[ 	]*=.*$/SET_LIB_PATH = $(REALLY_SET_LIB_PATH)/' \
      Makefile > Makefile.tem
  rm -f Makefile
  mv -f Makefile.tem Makefile

  case "${host}" in
  *-*-hpux*)
    sed -e 's/^RPATH_ENVVAR[ 	]*=.*$/RPATH_ENVVAR = SHLIB_PATH/' \
	Makefile > Makefile.tem
    rm -f Makefile
    mv -f Makefile.tem Makefile
    ;;
  esac
fi

# Record target_configdirs and the configure arguments in Makefile.
target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
targargs=`echo "${arguments}" | \
	sed -e 's/--no[^ 	]*//' \
	    -e 's/--cache[a-z-]*=[^ 	]*//' \
	    -e 's/--ho[a-z-]*=[^ 	]*//' \
	    -e 's/--bu[a-z-]*=[^ 	]*//' \
	    -e 's/--ta[a-z-]*=[^ 	]*//'`

# Passing a --with-cross-host argument lets the target libraries know
# whether they are being built with a cross-compiler or being built
# native.  However, it would be better to use other mechanisms to make the
# sorts of decisions they want to make on this basis.  Please consider
# this option to be deprecated.  FIXME.
if [ x${is_cross_compiler} = xyes ]; then
  targargs="--with-cross-host=${host_alias} ${targargs}"
fi

# Default to --enable-multilib.
if [ x${enable_multilib} = x ]; then
  targargs="--enable-multilib ${targargs}"
fi

# Pass --with-newlib if appropriate.  Note that target_configdirs has
# changed from the earlier setting of with_newlib.
if [ x${with_newlib} != xno ] && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && [ -d ${srcdir}/newlib ] ; then
  targargs="--with-newlib ${targargs}"
fi

# provide a proper gxx_include_dir.
# Note, if you change the default, make sure to fix both here and in
# the gcc, libio, and libstdc++ subdirectories.
# Check whether --with-gxx-include-dir or --without-gxx-include-dir was given.
gxx_include_dir=
if test -n "${with_gxx_include_dir}"; then
  case "${with_gxx_include_dir}" in
    yes )
      echo "configure.in: error: bad value ${withval} given for g++ include directory" 1>&2
      exit 1
      ;;
    no )
      ;;
    * )
      gxx_include_dir=${with_gxx_include_dir}
      ;;
  esac
fi
if test x${gxx_include_dir} = x; then
  if test x${enable_version_specific_runtime_libs} = xyes; then
    gxx_include_dir='${libsubdir}/include/g++'
  else
    . ${topsrcdir}/config.if
    gxx_include_dir='${prefix}/include/g++'-${libstdcxx_interface}
  fi
else
  gxx_include_dir=${gxx_include_dir}
fi

FLAGS_FOR_TARGET=
case " $skipdirs " in
*" target-newlib "*) ;;
*)
   case "$target" in
   *-cygwin*)
     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' ;;
   esac

   # If we're not building GCC, don't discard standard headers.
   if test -d ${topsrcdir}/gcc; then
     FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'

     if test "${build}" != "${host}"; then
       # On Canadian crosses, CC_FOR_TARGET will have already been set
       # by `configure', so we won't have an opportunity to add -Bgcc/
       # to it.  This is right: we don't want to search that directory
       # for binaries, but we want the header files in there, so add
       # them explicitly.
       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/gcc/include'

       # Someone might think of using the pre-installed headers on
       # Canadian crosses, in case the installed compiler is not fully
       # compatible with the compiler being built.  In this case, it
       # would be better to flag an error than risking having
       # incompatible object files being constructed.  We can't
       # guarantee that an error will be flagged, but let's hope the
       # compiler will do it, when presented with incompatible header
       # files.
     fi
   fi

   # If we're building newlib, use its generic headers last, but search
   # for any libc-related directories first (so make it the last -B
   # switch).
   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
   ;;
esac

# On Canadian crosses, we'll be searching the right directories for
# the previously-installed cross compiler, so don't bother to add
# flags for directories within the install tree of the compiler
# being built; programs in there won't even run.
if test "${build}" = "${host}" && test -d ${topsrcdir}/gcc; then
  # Search for pre-installed headers if nothing else fits.
  FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include'
fi

if test "x${use_gnu_ld}" = x && test "x${with_gnu_ld}" != xno &&
   echo " ${configdirs} " | grep " ld " > /dev/null &&
   test -d ${srcdir}/ld; then
  # Arrange for us to find uninstalled linker scripts.
  FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/ld'
fi

if test "x${CC_FOR_TARGET+set}" = xset; then
  :
elif test -d ${topsrcdir}/gcc; then
  CC_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/'
elif test "$host" = "$target"; then
  CC_FOR_TARGET='$(CC)'
else
  CC_FOR_TARGET=`echo gcc | sed -e 's/x/x/' ${program_transform_name}`
fi
# On Canadian crosses, configure reads CC_FOR_TARGET from Makefile,
# if Makefile exists.  Prevent $(FLAGS_FOR_TARGET) from being duplicated.
case $CC_FOR_TARGET in
*' $(FLAGS_FOR_TARGET)') ;;
*) CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
esac

if test "x${CHILL_FOR_TARGET+set}" = xset; then
  :
elif test -d ${topsrcdir}/gcc; then
  CHILL_FOR_TARGET='$$r/gcc/xgcc -B$$r/gcc/ -L$$r/gcc/ch/runtime/'
elif test "$host" = "$target"; then
  CHILL_FOR_TARGET='$(CC)'
else
  CHILL_FOR_TARGET=`echo gcc | sed -e 's/x/x/' ${program_transform_name}`
fi
case $CHILL_FOR_TARGET in
*' $(FLAGS_FOR_TARGET)') ;;
*) CHILL_FOR_TARGET=$CHILL_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
esac

if test "x${CXX_FOR_TARGET+set}" = xset; then
  :
elif test -d ${topsrcdir}/gcc; then
  CXX_FOR_TARGET='$$r/gcc/g++ -B$$r/gcc/ -nostdinc++ '$libstdcxx_flags
elif test "$host" = "$target"; then
  CXX_FOR_TARGET='$(CXX)'
else
  CXX_FOR_TARGET=`echo c++ | sed -e 's/x/x/' ${program_transform_name}`
fi
case $CXX_FOR_TARGET in
*' $(FLAGS_FOR_TARGET)') ;;
*) CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
esac
qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,&,\\\&,g'`

targargs="--cache-file=../config.cache --host=${target_alias} --build=${build_alias} ${targargs}"
sed -e "s:^TARGET_CONFIGDIRS[ 	]*=.*$:TARGET_CONFIGDIRS = ${target_configdirs}:" \
    -e "s%^CONFIG_ARGUMENTS[ 	]*=.*$%CONFIG_ARGUMENTS = ${targargs}%" \
    -e "s%^FLAGS_FOR_TARGET[ 	]*=.*$%FLAGS_FOR_TARGET = ${FLAGS_FOR_TARGET}%" \
    -e "s%^CC_FOR_TARGET[ 	]*=.*$%CC_FOR_TARGET = ${CC_FOR_TARGET}%" \
    -e "s%^CHILL_FOR_TARGET[ 	]*=.*$%CHILL_FOR_TARGET = ${CHILL_FOR_TARGET}%" \
    -e "s%^CXX_FOR_TARGET[ 	]*=.*$%CXX_FOR_TARGET = ${qCXX_FOR_TARGET}%" \
    -e "s%^TARGET_SUBDIR[ 	]*=.*$%TARGET_SUBDIR = ${target_subdir}%" \
    -e "s%^gxx_include_dir[ 	]*=.*$%gxx_include_dir=${gxx_include_dir}%" \
       Makefile > Makefile.tem
rm -f Makefile
mv -f Makefile.tem Makefile

#
# Local Variables:
# fill-column: 131
# End:
#