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#! /dev/null

# Don't call it directly. This shell script fragment is called to

# determine:

#

#       1. libstcxx_interface: the interface name for libstdc++.

#       2. cxx_interface: the interface name for c++.

#       3. libc_interface: the interface name for libc.

#

# Get the top level src dir.

if [ -z "${topsrcdir}" -a -z "${top_srcdir}" ]

then

  echo "Undefined top level src dir: topsrcdir and top_srcdir are empty" >&2

  exit 1

fi

if [ -n "${topsrcdir}" ]

then

  if_topsrcdir=${topsrcdir}

else

  if_topsrcdir=${top_srcdir}

fi

if [ -f ${if_topsrcdir}/libstdc++/Makefile.in ]; then

# We check libstdc++ for libstdcxx_interface.

libstdcxx_interface=`grep "^INTERFACE" ${if_topsrcdir}/libstdc++/Makefile.in | sed 's/INTERFACE[        ]*=[    ]*\(.*\)/\1/'`

else

libstdcxx_interface=

fi

if [ -f ${if_topsrcdir}/gcc/cp/Makefile.in ]; then

# We check gcc/cp for cxx_interface.

cxx_interface=`grep "^INTERFACE" ${if_topsrcdir}/gcc/cp/Makefile.in | sed 's/INTERFACE[         ]*=[    ]*\(.*\)/\1/'`

else

cxx_interface=

fi

# The trickiest part is libc_interface.

if [ -z "${libc_interface}" ]

then

  case ${target_os} in

  *linux*libc1*|*linux*libc5*)

    case ${target_alias} in

    *alpha*|*powerpc*)

      libc_interface=-libc5.9-

      ;;

    *)

      libc_interface=-libc5-

      ;;

    esac

    ;;

  *linux*gnu*)

    # We have to work harder to figure it out.

    if [ ${target_alias} = ${build_alias} ]

    then

      dummy=if$$

      cat >$dummy.c <

#include 

main(argc, argv)

     int argc;

     char *argv[];

{

  printf("%d\n", __GLIBC_MINOR__);

  return 0;

}

EOF

      ${CC-cc} $dummy.c -o $dummy 2>/dev/null

      if [ "$?" = 0 ]

      then

        libc_interface=-libc6.`./$dummy`-

        rm -f $dummy.c $dummy

      else

        # It should never happen.

        echo "Cannot find the GNU C library minor version number." >&2

        rm -f $dummy.c $dummy

        exit 1

      fi

    else

      # Cross compiling. Assume glibc 2.1.

      libc_interface=-libc6.1-

    fi

    ;;

  *)

    libc_interface=-

    ;;

  esac

fi