Bug#811891: Not a GCC 6 issue, but libc 2.22

[Martin Michlmayr]

retitle 811891 FTBFS: dereferencing pointer to incomplete type 'struct addrinfo'
severity 811891 serious
thanks

libc6 2.22 is in unstable now.

-- 
Martin Michlmayr
Linux for HPE Helion, Hewlett Packard Enterprise