--- ray/src/hd/holo.h	1997/10/31 10:23:29	3.1
+++ ray/src/hd/holo.h	1997/11/10 18:04:05	3.3
@@ -45,7 +45,7 @@ typedef struct {
 typedef struct {
 	short	w;		/* wall number */
 	short	i[2];		/* index on wall grid */
-} BCOORD[2];		/* beam grid coordinates */
+} GCOORD;		/* grid coordinates (two for beam) */
 
 typedef struct {
 	unsigned int4	nrd;	/* number of beam rays bundled on disk */
@@ -57,7 +57,7 @@ typedef struct {
 	unsigned long	tick;	/* clock tick for LRU replacement */
 } BEAM;			/* followed by nrm RAYVAL's */
 
-#define hdbray(bp)	(RAYVAL *)((bp)+1)
+#define hdbray(bp)	((RAYVAL *)((bp)+1))
 #define hdbsiz(nr)	(sizeof(BEAM)+(nr)*sizeof(RAYVAL))
 
 typedef struct {