So I have gdc set up on my linux(64) machine with monodevelop and mono-d installed. Now I'm not sure where the location of the phobes/auto-completion is.
With the normal dmd you'd put /usr/include/x86_64-linux-gnu/dmd/druntime/import /usr/include/x86_64-linux-gnu/dmd/phobos into the include section of the addon for monodevelop I'm not sure what I'd put for using the gdc front-end.