Added ifdef to account for potential conflict with certain winsock.h u_* typedef's.
Added ifdef to account for potential conflict with certain winsock.h u_*
typedef's.


OPENDAP/libdap,OPENDAP/libdap,OPENDAP/libdap4,OPENDAP/libdap4,OPENDAP/libdap4,OPENDAP/libdap4,OPENDAP/libdap,OPENDAP/libdap,OPENDAP/libdap4,OPENDAP/libdap4