The KEYWORDS list in dev-db/gmyclient-0.3.ebuild is "ppc ~sparc x86". On my AMD64 system, I set up an overlay and added amd64 to the keywords. Then emerged the app, it compiled cleanly and ran fine on my system. Suggest adding amd64 to the keywords for this ebuild (or at least ~amd64).
I'm not going to add this to ~amd64 until I know it works without crashing. $ gmyclient Gdk-ERROR **: BadMatch (invalid parameter attributes) serial 9763 error_code 8 request_code 62 minor_code 0 Gdk-ERROR **: BadMatch (invalid parameter attributes) serial 9776 error_code 8 request_code 62 minor_code 0 More research will need to be done on whether this is an amd64 issue or not.
Actually, I'm going to give this bug to Daniel in case he has seen this before. If you haven't seen this before, dragonheart, please do resolve it as "needinfo".
Marking LATER.