dnl Check whether option -Wno-deprecated

dnl is needed by GCC compiler.

AC_MSG_CHECKING([whether compiler needs -Wno-deprecated])

gcc_version=`${CC} --version | grep 'gcc (GCC) [[3-4]].' | head -n 1`

case "${gcc_version}" in

     gcc*)

        AC_MSG_RESULT([yes])

        CXXFLAGS="$CXXFLAGS -Wno-deprecated"

        ;;

     *)

        AC_MSG_RESULT([no])

        ;;

esac

AC_MSG_CHECKING([whether compiler accepts -Wmissing-declarations and -Wnested-externs])

gcc_version=`${CC} --version | grep 'gcc (GCC) [[3-4]].' | head -n 1`

case "${gcc_version}" in

     gcc*)

        AC_MSG_RESULT([no])

        ;;

     *)

        AC_MSG_RESULT([yes])

        CXXFLAGS="$CXXFLAGS -Wmissing-declarations -Wnested-externs"

        ;;

esac