make call_destroy() global

daemon/call.c

@@ -260,7 +260,6 @@ static const struct mediaproxy_srtp __mps_null = {
 
 
 
-static void call_destroy(struct call *);
 static void unkernelize(struct packet_stream *);
 static void __stream_unkernelize(struct packet_stream *ps);
 static void stream_unkernelize(struct packet_stream *ps);
@@ -1956,7 +1955,7 @@ static void unkernelize(struct packet_stream *p) {
 }
 
 /* called lock-free, but must hold a reference to the call */
-static void call_destroy(struct call *c) {
+void call_destroy(struct call *c) {
 	struct callmaster *m = c->callmaster;
 	struct packet_stream *ps;
 	struct stream_fd *sfd;

daemon/call.h

@@ -383,6 +383,7 @@ struct call_monologue *call_get_mono_dialogue(struct call *call, const str *from
 int monologue_offer_answer(struct call_monologue *monologue, GQueue *streams, const struct sdp_ng_flags *flags);
 int call_delete_branch(struct callmaster *m, const str *callid, const str *branch,
 	const str *fromtag, const str *totag, bencode_item_t *output);
+void call_destroy(struct call *);
 
 void kernelize(struct packet_stream *);
 int call_stream_address_alt(char *, struct packet_stream *, enum stream_address_format, int *);