This might use a bit more memory than it could, but it works reliably for me
loading a large Ingen patch inside Ardour as an LV2 plugin, which I'm pretty
sure is by far the most high volume such communication out there.
git-svn-id: svn://localhost/ardour2/branches/3.0@13519 d708f5d6-7413-0410-9779-e7cbd77b26cf