$NetBSD$

--- src/core/thread.cpp.orig	Fri Apr 29 20:24:01 2005
+++ src/core/thread.cpp	Fri Apr 29 20:25:20 2005
@@ -32,7 +32,9 @@
 
 #ifdef PTHREAD_COND_T_IN_PTHREAD_H
 #include <pthread.h>
+# ifdef USE_SEM_T
 #include <semaphore.h>
+# endif
 #include <errno.h>
 #elif defined WIN32
 #include <windows.h>
