qt4: fixed to select the Open Source Edition

Note:

Otherwise build is hanging because it waits for the user to select
the desired version interactively.

qt/qt4/qt4.conf

@@ -2,7 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../qt4/qt4.conf
-# Copyright (C) 2006 - 2009 The OpenSDE Project
+# Copyright (C) 2006 - 2010 The OpenSDE Project
 # Copyright (C) 2004 - 2006 The T2 SDE Project
 # Copyright (C) 1998 - 2004 Clifford Wolf
 #
@@ -57,6 +57,9 @@ done
 # one without. As a result we end up with shared files with qt3.
 var_append confopt ' ' "-release -no-separate-debug-info"
 
+# use the Open Source Edition
+var_append confopt ' ' "-opensource"
+
 # Confirm the license automatically
 var_append confopt ' ' "-confirm-license"