void (*grow_succs)(void *self, void *node, struct obstack *obst);
} absgraph_t;
-const absgraph_t absgraph_irg_cfg_succ;
-const absgraph_t absgraph_irg_cfg_pred;
+extern const absgraph_t absgraph_irg_cfg_succ;
+extern const absgraph_t absgraph_irg_cfg_pred;
#endif /* FIRM_ANA_ABSGRAPH_H */