$OpenBSD$
--- src/BulletMultiThreaded/CMakeLists.txt.orig	Sat Nov 13 07:48:57 2010
+++ src/BulletMultiThreaded/CMakeLists.txt	Sat Nov 13 07:49:15 2010
@@ -73,7 +73,7 @@ SUBDIRS(GpuSoftBodySolvers)
 
 
 IF (BUILD_SHARED_LIBS)
-	TARGET_LINK_LIBRARIES(BulletMultiThreaded BulletDynamics BulletCollision)
+	TARGET_LINK_LIBRARIES(BulletMultiThreaded BulletDynamics BulletCollision pthread)
 ENDIF (BUILD_SHARED_LIBS)
 
 IF (INSTALL_LIBS)