--- trunk/src/selection/HullFinder.cpp	2010/03/22 18:45:39	1412
+++ trunk/src/selection/HullFinder.cpp	2010/04/22 19:44:57	1439
@@ -81,16 +81,27 @@ namespace OpenMD {
 	stuntdoubles_[rb->getGlobalIndex()] = rb;
       }
         
-    }    
-    surfaceMesh_ = new ConvexHull();    
+    }
+#ifdef HAVE_QHULL
+    surfaceMesh_ = new ConvexHull();
+#endif
   }
 
   OpenMDBitSet HullFinder::findHull() {
     StuntDouble* sd;
     Snapshot* currSnapshot = info_->getSnapshotManager()->getCurrentSnapshot();
     OpenMDBitSet bsResult(nStuntDoubles_);
-
+#ifdef HAVE_QHULL
     surfaceMesh_->computeHull(localSites_);
+#else
+    sprintf( painCave.errMsg,
+             "Hullfinder error: Hull calculation not possible without libqhull.\n",
+              "Please rebuild with Qhull");
+      painCave.severity = OPENMD_ERROR;
+      painCave.isFatal = 1;
+      simError();
+#endif
+    
     std::vector<Triangle> sMesh = surfaceMesh_->getMesh();
     int nTriangles = sMesh.size();
     // Loop over the mesh faces