NAME
	SameLock -- returns whether two locks are on the same object (V36)

   SYNOPSIS
	value = SameLock(lock1, lock2)
	D0		  D1     D2

	LONG SameLock(BPTR, BPTR)

   FUNCTION
	Compares two locks.  Returns LOCK_SAME if they are on the same object,
	LOCK_SAME_VOLUME if on different objects on the same volume, and
	LOCK_DIFFERENT if they are on different volumes.  Always compare
	for equality or non-equality with the results, in case new return
	values are added.

   INPUTS
	lock1 - 1st lock for comparison
	lock2 - 2nd lock for comparison

   RESULT
	value -	LOCK_SAME, LOCK_SAME_VOLUME, or LOCK_DIFFERENT

   BUGS
	Should do more extensive checks for NULL against a real lock, checking
	to see if the real lock is a lock on the root of the boot volume.

	In V36, it would return LOCK_SAME_VOLUME for different volumes on the
	same handler.  Also, LOCK_SAME_VOLUME was LOCK_SAME_HANDLER (now
	an obsolete define, see <dos/dos.h>).

   SEE ALSO
	<dos/dos.h>