The openipmi package made backward imcompatible changes.
This patch fixes the effects in openhpi ipmi plugin
by changing selector_t to struct selector_s

--- a/plugins/ipmi/ipmi.h
+++ b/plugins/ipmi/ipmi.h
@@ -82,7 +82,7 @@
 	ipmi_con_t *cons[2];
 	unsigned int num_cons;
 
-	selector_t *ohoi_sel;
+	struct selector_s *ohoi_sel;
 
 	char *entity_root;
 	int connected;