--- apps/polytope/src/lrs_interface.cc.orig	2011-12-20 17:47:59.000000000 -0700
+++ apps/polytope/src/lrs_interface.cc	2013-03-19 16:44:34.503260585 -0600
@@ -310,7 +310,7 @@
    {
       // initialize static lrs data
       Lin=0;
-      Q=lrs_alloc_dat(0);
+      Q=lrs_alloc_dat("");
       if (!Q) throw std::bad_alloc();
       Q->m=Inequalities.rows()+Equations.rows();
       Q->n=Inequalities.cols();