--- ray/src/gen/genblinds.c	1992/10/02 16:10:45	2.4
+++ ray/src/gen/genblinds.c	1994/10/10 12:07:45	2.7
@@ -21,18 +21,18 @@ static char SCCSid[] = "$SunId$ LBL";
 #include  <stdio.h>
 #include  <math.h>
 
-#ifndef atof
-extern double  atof();
-#endif
+#define  PI		3.14159265358979323846
+#define  DELTA		10.  /*  MINIMAL SUSTAINED ANGLE IN DEGREES */
 
-#define  PI		3.141592653589793
-#define  DELTA		5.  /*  MINIMAL SUSTAINED ANGLE IN DEGREES */
-
 double  baseflat[4][3], baseblind[4][3][180];
 double  A[3],X[3];
 char  *material, *name;
 double  height;
 int  nslats,  nsurf;
+
+#ifdef  DCL_ATOF
+extern double  atof();
+#endif
 
 
 main(argc, argv)