--- ray/src/rt/rv2.c	1992/04/06 18:04:19	2.9
+++ ray/src/rt/rv2.c	1992/10/06 17:13:42	2.11
@@ -186,7 +186,6 @@ char  *s;
 getaim(s)				/* aim camera */
 char  *s;
 {
-	extern double  tan(), atan();
 	double  zfact;
 	VIEW  nv;
 
@@ -217,7 +216,6 @@ char  *s;
 getrotate(s)				/* rotate camera */
 char  *s;
 {
-	extern double  normalize(), tan(), atan();
 	VIEW  nv;
 	FVECT  v1;
 	double  angle, elev, zfact;
@@ -457,7 +455,7 @@ register char  *s;
 	case 'a':			/* ambient */
 		switch (s[1]) {
 		case 'v':			/* value */
-			getparam(s+2, "ambient value", 'C', ambval);
+			getparam(s+2, "ambient value", 'C', (COLOR *)ambval);
 			break;
 		case 'a':			/* accuracy */
 			getparam(s+2, "ambient accuracy", 'r', &ambacc);