$OpenBSD: patch-base_bind_h,v 1.1 2021/04/16 18:15:05 robert Exp $

Index: base/bind.h
--- base/bind.h.orig
+++ base/bind.h
@@ -314,7 +314,7 @@ inline OnceCallback<MakeUnboundRunType<Functor, Args..
                 "BindOnce requires non-const rvalue for OnceCallback binding."
                 " I.e.: base::BindOnce(std::move(callback)).");
 #if defined(OS_LINUX) || defined(OS_WIN) || \
-    defined(NCTEST_BIND_ONCE_WITH_PASSED)
+    defined(NCTEST_BIND_ONCE_WITH_PASSED) || defined(OS_BSD)
   // TODO(https://crbug.com/1180750): Enable this everywhere.
   static_assert(
       conjunction<
