+/* Set to true if have the mergesort function */
+#cmakedefine HAVE_MERGESORT @HAVE_MERGESORT@
+
+/* If have linux_futex.h */
+#cmakedefine HAVE_FUTEX_H @HAVE_FUTEX_H@
+
+/* Some variable for graphviz */
+#cmakedefine HAVE_GRAPH_H @GRAPH_H@
+#cmakedefine HAVE_CGRAPH_H @CGRAPH_H@
+#cmakedefine HAVE_AGRAPH_H @AGRAPH_H@
+