--- ray/src/gen/replmarks.c	1992/03/03 21:30:03	2.2
+++ ray/src/gen/replmarks.c	1998/01/16 10:48:23	2.4
@@ -17,7 +17,7 @@ static char SCCSid[] = "$SunId$ LBL";
 #include "fvect.h"
 
 #ifdef  M_PI
-#define  PI		M_PI
+#define  PI		((double)M_PI)
 #else
 #define  PI		3.14159265358979323846
 #endif
@@ -26,6 +26,10 @@ static char SCCSid[] = "$SunId$ LBL";
 
 #define  MAXVERT	6	/* maximum number of vertices for markers */
 #define  MAXMARK	32	/* maximum number of markers */
+
+#ifdef  DCL_ATOF
+extern double  atof();
+#endif
 
 typedef struct {
 	short	beg, end;		/* beginning and ending vertex */