* Make sure that config.h is included before the system headers,

because it defines _FILE_OFFSET_BITS.  Without this, on 
  OpenSolaris the system headers define it to be 32, and then 
  the 32-bit stat() ends up being called with a 64-bit "struct 
  stat", or vice versa.

  This also ensures that we get 64-bit file sizes everywhere.

* Remove the redundant call to stat() in parseExprFromFile().
  The file cannot be a symlink because that's the exit condition
  of the loop before.

src/libexpr/value-to-xml.hh

@@ -1,12 +1,12 @@
 #ifndef __VALUE_TO_XML_H
 #define __VALUE_TO_XML_H
 
-#include <string>
-#include <map>
-
 #include "nixexpr.hh"
 #include "eval.hh"
 
+#include <string>
+#include <map>
+
 namespace nix {
 
 void printValueAsXML(EvalState & state, bool strict, bool location,