@@ -645,12 +645,18 @@
 	}
 
 	/* Get rid of a warning, never reached anyway */
 	assert(0);
 }
+
+- (int)fileDescriptor
+{
+	@throw [OFNotImplementedException newWithClass: isa
+					      selector: _cmd];
+}
 
 - (void)close
 {
 	@throw [OFNotImplementedException newWithClass: isa
 					      selector: _cmd];
 }
 @end