--- rpm-5.4.12/build/expression.c.strdup~	2013-07-31 18:10:52.556444318 +0200
+++ rpm-5.4.12/build/expression.c	2013-07-31 18:10:30.794081121 +0200
@@ -63,7 +63,7 @@ static Value valueMakeString(/*@only@*/
 
     v = (Value) xmalloc(sizeof(*v));
     v->type = VALUE_TYPE_STRING;
-    v->data.s = s;
+    v->data.s = xstrdup(s);
     return v;
 }