Icecast might hang with 100% cpu use upon failed startup

I just ran into it again. It looks like it gets caught up in waiting for something.

Example output when trying to bind to inexistent IPv4 address:

$ /usr/bin/icecast -c /etc/icecast.xml
[2015-01-08  05:21:48] EROR connection/connection_setup_sockets Could not create listener socket on port 8000 bind 203.0.113.23
[2015-01-08  05:21:48] EROR connection/connection_setup_sockets No listening sockets established
Server startup failed. Exiting

"strace -f" doesn't produce any output after writing that last message.