#if !defined(LUK_TYPESH) # define LUK_TYPESH /* * luk-types - define some semi standard types and constants used in the microkernel. */ typedef unsigned char uchar; typedef unsigned int boolean; #define NULL (void *)0 #if !defined(TRUE) # define TRUE (1==1) #endif #if !defined(FALSE) # define FALSE (1==0) #endif #endif