H264 - FreeBSD compilation bit

I cannot currently verify this myself, but it seems likely to be correct.

doc/fixes34.4

@@ -356,6 +356,7 @@ X11: ensure vertical scrollbar shows up in text display windows
 X11: fix typo in mouse click sanity check; result might have pointed to
 	spurious location after window resizing
 unix/Qt: saved games were not found if nethack was built with prefixes in use
+FreeBSD: compilation problems on FreeBSD 6.1
 
 
 General New Features

win/tty/termcap.c

@@ -803,7 +803,7 @@ cl_eos()			/* free after Robert Viduya */
 
 #include <curses.h>
 
-#ifndef LINUX
+#if !defined(LINUX) && !defined(__FreeBSD__)
 extern char *tparm();
 #endif