--- ray/src/px/pextrem.c	2003/06/08 12:03:10	2.7
+++ ray/src/px/pextrem.c	2004/03/28 20:33:14	2.10
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: pextrem.c,v 2.7 2003/06/08 12:03:10 schorsch Exp $";
+static const char	RCSid[] = "$Id: pextrem.c,v 2.10 2004/03/28 20:33:14 schorsch Exp $";
 #endif
 /*
  * Find extrema points in a Radiance picture.
@@ -7,9 +7,11 @@ static const char	RCSid[] = "$Id: pextrem.c,v 2.7 2003
 
 #include  <stdio.h>
 #include  <math.h>
+#include  <string.h>
 
 #include  "platform.h"
 #include  "color.h"
+#include  "resolu.h"
 
 
 int  orig = 0;
@@ -18,9 +20,14 @@ int  wrongformat = 0;
 
 COLOR  expos = WHTCOLOR;
 
+static gethfunc headline;
 
-headline(s)			/* check header line */
-char  *s;
+
+static int
+headline(			/* check header line */
+	char  *s,
+	void	*p
+)
 {
 	char	fmt[32];
 	double	d;
@@ -43,9 +50,11 @@ char  *s;
 }
 
 
-main(argc, argv)
-int  argc;
-char  *argv[];
+int
+main(
+	int  argc,
+	char  *argv[]
+)
 {
 	int  i;
 	int  xres, yres;