diff -r 39b6e65574c6 -r 0759d974de81 lemon/glpk.cc
--- a/lemon/glpk.cc	Thu Apr 02 22:34:03 2015 +0200
+++ b/lemon/glpk.cc	Sun Jan 05 22:24:56 2014 +0100
@@ -38,8 +38,8 @@
     lp = glp_create_prob();
     glp_copy_prob(lp, other.lp, GLP_ON);
     glp_create_index(lp);
-    rows = other.rows;
-    cols = other.cols;
+    _rows = other._rows;
+    _cols = other._cols;
     messageLevel(MESSAGE_NOTHING);
   }
 
@@ -108,13 +108,13 @@
   }
 
   void GlpkBase::_eraseColId(int i) {
-    cols.eraseIndex(i);
-    cols.shiftIndices(i);
+    _cols.eraseIndex(i);
+    _cols.shiftIndices(i);
   }
 
   void GlpkBase::_eraseRowId(int i) {
-    rows.eraseIndex(i);
-    rows.shiftIndices(i);
+    _rows.eraseIndex(i);
+    _rows.shiftIndices(i);
   }
 
   void GlpkBase::_getColName(int c, std::string& name) const {