$OpenBSD: patch-base_process_launch_h,v 1.10 2018/05/04 07:14:57 robert Exp $
Index: base/process/launch.h
--- base/process/launch.h.orig
+++ base/process/launch.h
@@ -165,7 +165,7 @@ struct BASE_EXPORT LaunchOptions {
   // propagate FDs into the child process.
   FileHandleMappingVector fds_to_remap;
 
-#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
