$OpenBSD: patch-base_process_launch_h,v 1.9 2017/12/04 13:55:41 robert Exp $
Index: base/process/launch.h
--- base/process/launch.h.orig
+++ base/process/launch.h
@@ -174,7 +174,7 @@ struct BASE_EXPORT LaunchOptions {
   // will be the same as its pid.
   bool new_process_group = false;
 
-#if defined(OS_LINUX)
+#if defined(OS_LINUX) || defined(OS_BSD)
   // If non-zero, start the process using clone(), using flags as provided.
   // Unlike in clone, clone_flags may not contain a custom termination signal
   // that is sent to the parent when the child dies. The termination signal will
