$OpenBSD: patch-shell_source_unix_exec_shellexec_cxx,v 1.4 2016/03/01 21:39:58 robert Exp $
--- shell/source/unix/exec/shellexec.cxx.orig.port	Wed Jan 27 01:58:25 2016
+++ shell/source/unix/exec/shellexec.cxx	Wed Feb 10 14:23:02 2016
@@ -240,7 +240,7 @@ void SAL_CALL ShellExec::execute( const OUString& aCom
     }
 
     OString cmd =
-#ifdef LINUX
+#if defined(LINUX) || defined(__OpenBSD__)
         // avoid blocking (call it in background)
         "( " + aBuffer.makeStringAndClear() +  " ) &";
 #else
