Building derelict

[bioinfornatics]

Hi,

That is now some time where i am not try to buld derelict3, 
Currently my build fail with:

derelict/pq/types.d(117): Error: struct derelict.pq.types.PGconn 
unknown size
derelict/pq/types.d(117): Error: struct derelict.pq.types.PGconn 
no size yet for forward reference

Someone know what to do?

thanks