- xpath.h: added a hook in the context structure allowing to
  link to extra support, needed for XSLT
Daniel
diff --git a/xpath.h b/xpath.h
index ca98a18..f8fd861 100644
--- a/xpath.h
+++ b/xpath.h
@@ -215,6 +215,9 @@
     xmlHashTablePtr nsHash;		/* The namespaces hash table */
     void *varLookupFunc;		/* variable lookup func */
     void *varLookupData;		/* variable lookup data */
+
+    /* Possibility to link in an extra item */
+    void *extra;                        /* needed for XSLT */
 };
 
 /*