$OpenBSD: patch-third_party_WebKit_Source_platform_heap_ThreadState_cpp,v 1.10 2016/10/27 18:30:41 robert Exp $
--- third_party/WebKit/Source/platform/heap/ThreadState.cpp.orig.port	Thu Sep  1 00:03:49 2016
+++ third_party/WebKit/Source/platform/heap/ThreadState.cpp	Thu Sep  1 11:12:24 2016
@@ -65,7 +65,7 @@
 #include <sanitizer/msan_interface.h>
 #endif
 
-#if OS(FREEBSD)
+#if OS(FREEBSD) || OS(OPENBSD)
 #include <pthread_np.h>
 #endif
 
