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[Les Aker]

I've found what appears to be a bug in the handling of listen directives for ipv4 and ipv6.

When running two vhosts, one of which listens on [::], the other on localhost, nginx will fail with this error:
2011/06/01 10:12:35 [emerg] 9750#0: bind() to 127.0.0.1:80 failed (98: Address already in use)
My understanding was that this error stems from [::] being inclusive of 127.0.0.1, causing nginx to attempt to bind it twice.
However, replacing the `listen localhost;` with `listen [::1];` removes the error, despite the fact that [::1] is also included within [::]. 
-- 
Les Aker