From ba6d6895f7802e537fd198c17ff3b088086e76f0 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <carl@carlh.net>
Date: Wed, 27 Oct 2010 21:18:32 +0000
Subject: [PATCH] assert() which catches one source of crashes on startup when
 Ardour starts JACK.

git-svn-id: svn://localhost/ardour2/branches/3.0@7926 d708f5d6-7413-0410-9779-e7cbd77b26cf
---
 libs/midi++2/port.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libs/midi++2/port.cc b/libs/midi++2/port.cc
index fa052ef33c..600886a94d 100644
--- a/libs/midi++2/port.cc
+++ b/libs/midi++2/port.cc
@@ -173,6 +173,8 @@ Port::clock (timestamp_t timestamp)
 void
 Port::cycle_start (nframes_t nframes)
 {
+	assert (_jack_port);
+	
 	_currently_in_cycle = true;
 	_nframes_this_cycle = nframes;