[cvs-nhc98] In portable Hat module, change PackedString to CString for

malcolm: Tue Nov 20 12:39:49 CET 2001 Update of /usr/src/master/nhc/src/prelude/Hat In directory hinken:/tmp/cvs-serv4602 Modified Files: Hat.hs Log Message: In portable Hat module, change PackedString to CString for all FFI operations.