--- src/os.c.orig	Mon May 22 01:47:31 1995
+++ src/os.c	Sat Nov 18 02:11:18 2000
@@ -42,7 +42,7 @@
 #  include <sys/stat.h>
 #  include <unistd.h>
 #endif
-#ifdef __linux__
+#if defined( __linux__ ) || defined( __FreeBSD__ )
 #	include <sys/file.h>
 #	define F_TLOCK	LOCK_NB
 #	define F_LOCK	LOCK_EX