--- ppl-1.1/src/Linear_Expression_defs.hh.orig	2014-12-11 14:18:32.000000000 -0800
+++ ppl-1.1/src/Linear_Expression_defs.hh	2014-12-11 14:23:44.000000000 -0800
@@ -630,7 +630,7 @@
   */
   bool all_zeroes(const Variables_Set& vars) const;
 
-private:
+public:	// workaround for gcc-4.0, broken access checks
   /*! \brief
     Holds (between class initialization and finalization) a pointer to
     the (zero-dimension space) constant 0.