$OpenBSD: patch-base_logging_cc,v 1.4 2011/06/08 20:36:56 robert Exp $
--- base/logging.cc.orig	Mon Jun  6 11:11:47 2011
+++ base/logging.cc	Wed Jun  8 09:58:35 2011
@@ -129,7 +129,7 @@ int32 CurrentThreadId() {
   return mach_thread_self();
 #elif defined(OS_LINUX)
   return syscall(__NR_gettid);
-#elif defined(OS_FREEBSD)
+#elif defined(OS_FREEBSD) || defined(OS_OPENBSD)
   // TODO(BSD): find a better thread ID
   return reinterpret_cast<int64>(pthread_self());
 #elif defined(OS_NACL)