Index: dsniff-2.4/sshow.c
===================================================================
--- dsniff-2.4.orig/sshow.c	2010-11-03 23:41:56.335999997 +0100
+++ dsniff-2.4/sshow.c	2010-11-03 23:42:10.981000001 +0100
@@ -42,6 +42,10 @@
 
 #define HISTORY_SIZE			16
 
+#ifndef CLK_TCK
+# define CLK_TCK	CLOCKS_PER_SEC
+#endif
+
 typedef struct {
 	u_int min, max;
 } range;