Declare most internal, constant tables as const, particularly the
"specifics" structures and the tables they point to.
diff --git a/skeletons/constr_CHOICE.c b/skeletons/constr_CHOICE.c
index 6b69942..f366f75 100644
--- a/skeletons/constr_CHOICE.c
+++ b/skeletons/constr_CHOICE.c
@@ -183,11 +183,11 @@
 		}
 
 		do {
-			asn_TYPE_tag2member_t *t2m;
+			const asn_TYPE_tag2member_t *t2m;
 			asn_TYPE_tag2member_t key;
 
 			key.el_tag = tlv_tag;
-			t2m = (asn_TYPE_tag2member_t *)bsearch(&key,
+			t2m = (const asn_TYPE_tag2member_t *)bsearch(&key,
 					specs->tag2el, specs->tag2el_count,
 					sizeof(specs->tag2el[0]), _search4tag);
 			if(t2m) {