--- ray/src/common/mat4.c	1994/06/23 10:22:20	2.2
+++ ray/src/common/mat4.c	2003/02/25 02:47:21	2.4
@@ -1,15 +1,12 @@
-/* Copyright (c) 1990 Regents of the University of California */
-
 #ifndef lint
-static char SCCSid[] = "$SunId$ LBL";
+static const char	RCSid[] = "$Id: mat4.c,v 2.4 2003/02/25 02:47:21 greg Exp $";
 #endif
-
 /*
  *  mat4.c - routines dealing with 4 X 4 homogeneous transformation matrices.
- *
- *     10/19/85
  */
 
+#include "copyright.h"
+
 #include  "mat4.h"
 
 MAT4  m4ident = MAT4IDENT;
@@ -17,6 +14,7 @@ MAT4  m4ident = MAT4IDENT;
 static MAT4  m4tmp;		/* for efficiency */
 
 
+void
 multmat4(m4a, m4b, m4c)		/* multiply m4b X m4c and put into m4a */
 MAT4  m4a;
 register MAT4  m4b, m4c;
@@ -34,6 +32,7 @@ register MAT4  m4b, m4c;
 }
 
 
+void
 multv3(v3a, v3b, m4)	/* transform vector v3b by m4 and put into v3a */
 FVECT  v3a;
 register FVECT  v3b;
@@ -49,6 +48,7 @@ register MAT4  m4;
 }
 
 
+void
 multp3(p3a, p3b, m4)		/* transform p3b by m4 and put into p3a */
 register FVECT  p3a;
 FVECT  p3b;