*** drivers/block/blk.h-orig46	Sat Sep  3 00:39:42 1994
--- drivers/block/blk.h	Sat Sep  3 00:39:51 1994
***************
*** 223,229 ****
  #define DEVICE_ON(device)
  #define DEVICE_OFF(device)
  
! #else
  
  #error "unknown blk device"
  
--- 223,229 ----
  #define DEVICE_ON(device)
  #define DEVICE_OFF(device)
  
! #elseif (! defined (DEVICE_NAME))
  
  #error "unknown blk device"