respawning dead tinc process

[pjv]

I have tinc 1.1pre11 running on various routers and linux cloud servers. On one of the cloud servers, under Ubuntu 12.04, tinc is mysteriously dying once in a while, leaving a dangling PID. I have been unable to track down why it is dying, but it happens infrequently enough that I care less about why it is dying than how to robustly respawn it when it dies.

Before I re-invent the wheel, has anyone come up with a solution for automatically detecting a dead tincd and respawning the process on linux?
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