--- ray/src/common/fvect.h	2003/06/27 06:53:21	2.11
+++ ray/src/common/fvect.h	2003/09/16 06:30:20	2.12
@@ -1,4 +1,4 @@
-/* RCSid $Id: fvect.h,v 2.11 2003/06/27 06:53:21 greg Exp $ */
+/* RCSid $Id: fvect.h,v 2.12 2003/09/16 06:30:20 greg Exp $ */
 /*
  * Declarations for floating-point vector operations.
  */
@@ -44,6 +44,8 @@ extern double	dist2lseg(FVECT p, FVECT ep1, FVECT ep2)
 extern void	fcross(FVECT vres, FVECT v1, FVECT v2);
 extern void	fvsum(FVECT vres, FVECT v0, FVECT v1, double f);
 extern double	normalize(FVECT v);
+extern int	closestapproach(RREAL t[2], FVECT rorg0, FVECT rdir0,
+				FVECT rorg1, FVECT rdir1);
 extern void	spinvector(FVECT vres, FVECT vorig, FVECT vnorm, double theta);