[lua] fixed to compile by tweaking $AR

lua/lua/lua.conf

@@ -2,6 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../lua/lua.conf
+# Copyright (C) 2008 The OpenSDE Project
 # Copyright (C) 2004 - 2006 The T2 SDE Project
 #
 # More information can be found in the files COPYING and README.
@@ -17,6 +18,9 @@
 # inherit variables like myCFLAGS, myLIBS
 . $base/package/*/*/lua-conf.in
 
+# AR=ar rcu
+export AR="$AR rcu"
+
 # adjust installation path
 var_append makeopt ' ' "INSTALL_TOP=$root/$prefix"
 var_append makeinstopt ' ' "INSTALL_TOP=$root/$prefix"