$NetBSD: patch-ad,v 1.1 2007/02/26 14:56:30 joerg Exp $

--- lib/abyss/src/thread.h.orig	2007-02-26 13:49:18.000000000 +0000
+++ lib/abyss/src/thread.h
@@ -57,6 +57,8 @@ ThreadHandleSigchld(pid_t const pid);
 #ifdef WIN32
 typedef HANDLE TMutex;
 #else
+#include <pthread.h>
+
 typedef pthread_mutex_t TMutex;
 #endif  /* WIN32 */
 
