--- blk.c.orig Tue Nov 6 11:53:55 1990+++ blk.c Thu Aug 15 04:47:18 1996@@ -19,7 +19,9 @@
# define NBUFS 5 /* must be at least 3 -- more is better */
#endif
+#if !(defined(BSD) && (BSD >= 199103))
extern long lseek();
+#endif
/*------------------------------------------------------------------------*/