$NetBSD: patch-da,v 1.1 2009/08/31 10:18:49 hasso Exp $

--- audio/sdlaudio.c.orig	2009-08-30 08:33:14 +0300
+++ audio/sdlaudio.c	2009-08-30 08:41:26 +0300
@@ -29,7 +29,7 @@
 #ifndef _WIN32
 #ifdef __sun__
 #define _POSIX_PTHREAD_SEMANTICS 1
-#elif defined(__OpenBSD__) || defined(__FreeBSD__)
+#elif defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__DragonFly__)
 #include <pthread.h>
 #endif
 #include <signal.h>
