--- ray/src/px/pinterp.c	1992/06/19 12:54:41	2.7
+++ ray/src/px/pinterp.c	1992/10/02 16:24:22	2.9
@@ -12,8 +12,6 @@ static char SCCSid[] = "$SunId$ LBL";
 
 #include "standard.h"
 
-#include <fcntl.h>
-
 #include <ctype.h>
 
 #include "view.h"
@@ -388,7 +386,6 @@ COLR	*pline;
 float	*zline;
 struct position	*lasty;		/* input/output */
 {
-	extern double	sqrt();
 	FVECT	pos;
 	struct position	lastx, newpos;
 	register int	x;
@@ -636,7 +633,6 @@ writepicture()				/* write out picture */
 writedistance(fname)			/* write out z file */
 char	*fname;
 {
-	extern double	sqrt();
 	int	donorm = normdist && ourview.type == VT_PER;
 	int	fd;
 	int	y;