main/libxml2/libxml2-xpath.patch

--- misc/libxml2-2.7.6/xpath.c	2009-09-24 17:32:00.000000000 +0200
+++ misc/build/libxml2-2.7.6/xpath.c	2011-01-03 17:21:08.788256100 +0100
@@ -8106,9 +8106,17 @@
 xmlNodePtr
 xmlXPathNextFollowing(xmlXPathParserContextPtr ctxt, xmlNodePtr cur) {
     if ((ctxt == NULL) || (ctxt->context == NULL)) return(NULL);
-    if (cur != NULL && cur->children != NULL)
-        return cur->children ;
-    if (cur == NULL) cur = ctxt->context->node;
+    if ((cur != NULL) && (cur->type  != XML_ATTRIBUTE_NODE) &&
+        (cur->type != XML_NAMESPACE_DECL) && (cur->children != NULL))
+        return(cur->children);
+
+    if (cur == NULL) {
+        cur = ctxt->context->node;
+        if (cur->type == XML_NAMESPACE_DECL)
+            return(NULL);
+        if (cur->type == XML_ATTRIBUTE_NODE)
+            cur = cur->parent;
+    }
     if (cur == NULL) return(NULL) ; /* ERROR */
     if (cur->next != NULL) return(cur->next) ;
     do {
@@ -8162,8 +8170,13 @@
 xmlXPathNextPreceding(xmlXPathParserContextPtr ctxt, xmlNodePtr cur)
 {
     if ((ctxt == NULL) || (ctxt->context == NULL)) return(NULL);
-    if (cur == NULL)
+    if (cur == NULL) {
         cur = ctxt->context->node;
+        if (cur->type == XML_NAMESPACE_DECL)
+            return(NULL);
+        if (cur->type == XML_ATTRIBUTE_NODE)
+            return(cur->parent);
+    }
     if (cur == NULL)
 	return (NULL);
     if ((cur->prev != NULL) && (cur->prev->type == XML_DTD_NODE))
@@ -8207,8 +8220,8 @@
         cur = ctxt->context->node;
         if (cur == NULL)
             return (NULL);
-	if (cur->type == XML_NAMESPACE_DECL)
-	    cur = (xmlNodePtr)((xmlNsPtr)cur)->next;
+        if (cur->type == XML_NAMESPACE_DECL)
+            return (NULL);
         ctxt->ancestor = cur->parent;
     }
     if ((cur->prev != NULL) && (cur->prev->type == XML_DTD_NODE))
@@ -11737,11 +11750,16 @@
 
 	    if ((ctxt->error != XPATH_EXPRESSION_OK) || (res == -1)) {
 	        xmlXPathObjectPtr tmp;
-		/* pop the result */
+		/* pop the result if any */
 		tmp = valuePop(ctxt);
-		xmlXPathReleaseObject(xpctxt, tmp);
-		/* then pop off contextObj, which will be freed later */
-		valuePop(ctxt);
+		if (tmp != contextObj) {
+			/*
+			* Free up the result
+			* then pop off contextObj, which will be freed later
+			*/
+			xmlXPathReleaseObject(xpctxt, tmp);
+			valuePop(ctxt);
+		}
 		goto evaluation_error;
 	    }