--- ray/src/cv/thf2rad.c	1993/08/02 14:08:55	2.4
+++ ray/src/cv/thf2rad.c	1993/11/08 13:43:34	2.5
@@ -24,7 +24,7 @@ typedef struct {
 
 double	rad = 0.0;			/* line radius */
 
-#ifdef  DECL_ATOF
+#ifdef  DCL_ATOF
 extern double  atof();
 #endif