[vala] D-Bus: Fix C warnings when using file descriptor passing with GDBus

[Jürg Billeter <juergbi src gnome org>]

commit d12ccdc819e4618cf719e37d7492bc895a9e4c6c
Author: Jürg Billeter <j bitron ch>
Date:   Mon Oct 25 10:20:11 2010 +0200

    D-Bus: Fix C warnings when using file descriptor passing with GDBus

 codegen/valagdbusmodule.vala |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/codegen/valagdbusmodule.vala b/codegen/valagdbusmodule.vala
index 6667771..44f61e8 100644
--- a/codegen/valagdbusmodule.vala
+++ b/codegen/valagdbusmodule.vala
@@ -183,12 +183,12 @@ public class Vala.GDBusModule : GVariantModule {
 				var result = new CCodeFunctionCall (new CCodeIdentifier ("g_unix_input_stream_new"));
 				result.add_argument (expr);
 				result.add_argument (new CCodeConstant ("TRUE"));
-				return result;
+				return new CCodeCastExpression (result, "GUnixInputStream *");
 			} else if (type.data_type.get_full_name () == "GLib.UnixOutputStream") {
 				var result = new CCodeFunctionCall (new CCodeIdentifier ("g_unix_output_stream_new"));
 				result.add_argument (expr);
 				result.add_argument (new CCodeConstant ("TRUE"));
-				return result;
+				return new CCodeCastExpression (result, "GUnixOutputStream *");
 			} else if (type.data_type.get_full_name () == "GLib.Socket") {
 				var result = new CCodeFunctionCall (new CCodeIdentifier ("g_socket_new_from_fd"));
 				result.add_argument (expr);