+/**
+ * Flags for dumping the IFG.
+ */
+enum {
+ CO_IFG_DUMP_COLORS = 1, /**< Dump the graph colored. */
+ CO_IFG_DUMP_LABELS = 2, /**< Dump node/edge labels. */
+ CO_IFG_DUMP_SHAPE = 4, /**< Give constrained nodes special shapes. */
+ CO_IFG_DUMP_CONSTR = 8 /**< Dump the node constraints in the label. */
+};
+
+/**
+ * Algorithms.
+ */
+enum {
+ CO_ALGO_NONE,
+ CO_ALGO_HEUR,
+ CO_ALGO_HEUR2,
+ CO_ALGO_HEUR3,
+ CO_ALGO_ILP,
+ CO_ALGO_LAST
+};
+
+/** The driver for copy minimization. */
+void co_driver(be_chordal_env_t *cenv);
+