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[/] [or1k/] [trunk/] [newlib/] [config.if] - Blame information for rev 1774

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Line No. Rev Author Line
1 56 joel
#! /dev/null
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# Don't call it directly. This shell script fragment is called to
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# determine:
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#
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#       1. libstcxx_interface: the interface name for libstdc++.
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#       2. cxx_interface: the interface name for c++.
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#       3. libc_interface: the interface name for libc.
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#
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# Get the top level src dir.
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if [ -z "${topsrcdir}" -a -z "${top_srcdir}" ]
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then
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  echo "Undefined top level src dir: topsrcdir and top_srcdir are empty" >&2
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  exit 1
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fi
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if [ -n "${topsrcdir}" ]
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then
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  if_topsrcdir=${topsrcdir}
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else
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  if_topsrcdir=${top_srcdir}
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fi
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if [ -f ${if_topsrcdir}/libstdc++/Makefile.in ]; then
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# We check libstdc++ for libstdcxx_interface.
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libstdcxx_interface=`grep "^INTERFACE" ${if_topsrcdir}/libstdc++/Makefile.in | sed 's/INTERFACE[        ]*=[    ]*\(.*\)/\1/'`
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else
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libstdcxx_interface=
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fi
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if [ -f ${if_topsrcdir}/gcc/cp/Makefile.in ]; then
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# We check gcc/cp for cxx_interface.
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cxx_interface=`grep "^INTERFACE" ${if_topsrcdir}/gcc/cp/Makefile.in | sed 's/INTERFACE[         ]*=[    ]*\(.*\)/\1/'`
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else
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cxx_interface=
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fi
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# The trickiest part is libc_interface.
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if [ -z "${libc_interface}" ]
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then
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  case ${target_os} in
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  *linux*libc1*|*linux*libc5*)
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    case ${target_alias} in
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    *alpha*|*powerpc*)
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      libc_interface=-libc5.9-
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      ;;
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    *)
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      libc_interface=-libc5-
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      ;;
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    esac
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    ;;
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  *linux*gnu*)
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    # We have to work harder to figure it out.
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    if [ ${target_alias} = ${build_alias} ]
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    then
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      dummy=if$$
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      cat >$dummy.c <
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#include 
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main(argc, argv)
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     int argc;
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     char *argv[];
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{
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  printf("%d\n", __GLIBC_MINOR__);
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  return 0;
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}
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EOF
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      ${CC-cc} $dummy.c -o $dummy 2>/dev/null
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      if [ "$?" = 0 ]
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      then
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        libc_interface=-libc6.`./$dummy`-
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        rm -f $dummy.c $dummy
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      else
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        # It should never happen.
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        echo "Cannot find the GNU C library minor version number." >&2
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        rm -f $dummy.c $dummy
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        exit 1
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      fi
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    else
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      # Cross compiling. Assume glibc 2.1.
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      libc_interface=-libc6.1-
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    fi
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    ;;
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  *)
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    libc_interface=-
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    ;;
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  esac
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fi

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