extern PGconn *PgGetConnectionId(Tcl_Interp *interp, char *id,
Pg_ConnectionId **);
-extern PgDelConnectionId(DRIVER_DEL_PROTO);
+extern int PgDelConnectionId(DRIVER_DEL_PROTO);
extern int PgOutputProc(DRIVER_OUTPUT_PROTO);
-extern PgInputProc(DRIVER_INPUT_PROTO);
+extern int PgInputProc(DRIVER_INPUT_PROTO);
extern int PgSetResultId(Tcl_Interp *interp, char *connid, PGresult *res);
extern PGresult *PgGetResultId(Tcl_Interp *interp, char *id);
extern void PgDelResultId(Tcl_Interp *interp, char *id);