K 10 svn:author V 3 bde K 8 svn:date V 27 1997-11-18T16:29:53.000000Z K 7 svn:log V 232 Removed unused #includes. Fixed nonblocking mode. It was per-device instead of per-file. This also fixes clobbering of bd_rtout by overloading it to hold a wrong version of the blocking flag. I hope nothing depends on the bugs. END