$NetBSD$

--- mt.h.orig	2006-06-12 21:45:57.000000000 +0200
+++ mt.h
@@ -58,7 +58,7 @@ typedef enum { TERM_IGNORE = 0, TERM_XTE
 	#define getmaxyx(w,y,x) y = w->_maxy;  x = w->_maxx
 #endif
 
-#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__) || defined(__CYGWIN__)
+#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__) || defined(__CYGWIN__) || defined(__DragonFly__)
 #define off64_t off_t
 #define stat64 stat
 #define open64 open
