[gxml] Makefile.am: compile Error.vala

[Richard Hans Schwarting <rschwart src gnome org>]

commit a53995435256ccddbe1bd2474c188232684c1720
Author: Richard Schwarting <aquarichy gmail com>
Date:   Wed Oct 2 10:06:10 2013 -0400

    Makefile.am: compile Error.vala

 gxml/Makefile.am |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gxml/Makefile.am b/gxml/Makefile.am
index 8f6d972..76e0625 100644
--- a/gxml/Makefile.am
+++ b/gxml/Makefile.am
@@ -52,6 +52,7 @@ libgxml_la_SOURCES = \
        Element.vala \
        Entity.vala \
        EntityReference.vala \
+       Error.vala \
        Implementation.vala \
        NamespaceAttr.vala \
        NodeList.vala \