$OpenBSD: patch-third_party_WebKit_Source_platform_heap_ThreadState_cpp,v 1.11 2016/01/23 18:49:31 robert Exp $
--- third_party/WebKit/Source/platform/heap/ThreadState.cpp.orig.port	Wed Jan 20 21:01:25 2016
+++ third_party/WebKit/Source/platform/heap/ThreadState.cpp	Fri Jan 22 19:58:59 2016
@@ -61,7 +61,7 @@ extern "C" void* __libc_stack_end;  // NOLINT
 #include <sanitizer/msan_interface.h>
 #endif
 
-#if OS(FREEBSD)
+#if OS(FREEBSD) || OS(OPENBSD)
 #include <pthread_np.h>
 #endif
 
