--- ray/src/cv/ies2rad.c	1991/01/29 12:19:10	1.3
+++ ray/src/cv/ies2rad.c	1991/12/19 15:10:45	2.2
@@ -79,7 +79,6 @@ char	**gargv;			/* global argv */
 
 extern char	*strcpy(), *strcat(), *stradd(), *tailtrunc(), *filetrunc(),
 		*filename(), *libname(), *fullname(), *malloc();
-extern double	atof();
 extern float	*matchlamp();
 
 
@@ -551,7 +550,7 @@ char	*mod, *name;
 		perror(buf);
 		return(-1);
 	}
-	if (cvdata(in, datout, 2, nangles, 1./683., bounds) != 0) {
+	if (cvdata(in, datout, 2, nangles, 1./WHTEFFICACY, bounds) != 0) {
 		fprintf(stderr, "dosource: bad distribution data\n");
 		fclose(datout);
 		unlink(fullname(buf,name,T_DST));