PowerDNS/pdns — pull request #1796 by rubenk (2014-10-08 14:00:55+00:00)
Title: Fix compiling mydns module without gmysql module

This fixes the last case in #544:
https://github.com/PowerDNS/pdns/issues/544#issuecomment-32457187

It's still a dirty hack, and we should pull the parts that mydns
and gmysql have in comming into a common library.