[perl-Glib-Object-Introspection] Hush a compiler warning

[Torsten SchÃnfeld <tsch src gnome org>]

commit 1a8c693ac614599d3c77f78c7382d4f08519ade6
Author: Torsten SchÃnfeld <kaffeetisch gmx de>
Date:   Mon Oct 3 17:38:10 2011 +0200

    Hush a compiler warning

 GObjectIntrospection.xs |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/GObjectIntrospection.xs b/GObjectIntrospection.xs
index 00be5f9..8955afb 100644
--- a/GObjectIntrospection.xs
+++ b/GObjectIntrospection.xs
@@ -2692,7 +2692,7 @@ invoke (class, basename, namespace, method, ...)
 		GITypeInfo * arg_type;
 		GITransfer transfer;
 		gboolean may_be_null;
-		guint perl_stack_pos, ffi_stack_pos;
+		gint perl_stack_pos, ffi_stack_pos;
 		SV *current_sv;
 
 		arg_info = g_callable_info_get_arg ((GICallableInfo *) info, i);