gdc-4.5 testing

[bioinfornatics]

i am a fedora packager i have already push into fedora repo ldc,tango,mango,derelict i follow gdc project, for fedora they are a problem gdc do not follow gcc upstream and is not yet a part of gcc
when gcc 4.7 comme into fedora how many time will be to wait for have gdc/gcc4.7 ?
if gdc build with gcc 4.6 i coud try something but in perfect world gdc is a gscc project.
Thanks for all, good works ;)