--- ray/src/gen/genblinds.c	1992/10/02 16:10:45	2.4
+++ ray/src/gen/genblinds.c	1993/08/02 14:22:58	2.6
@@ -21,10 +21,6 @@ static char SCCSid[] = "$SunId$ LBL";
 #include  <stdio.h>
 #include  <math.h>
 
-#ifndef atof
-extern double  atof();
-#endif
-
 #define  PI		3.141592653589793
 #define  DELTA		5.  /*  MINIMAL SUSTAINED ANGLE IN DEGREES */
 
@@ -33,6 +29,10 @@ double  A[3],X[3];
 char  *material, *name;
 double  height;
 int  nslats,  nsurf;
+
+#ifdef  DCL_ATOF
+extern double  atof();
+#endif
 
 
 main(argc, argv)