yes, exactly, and it's done already
Not CC, but DD non-kernel packages. Can't check it right now, cuz downloads for trunk is down.
Also my buildroot already contains DD feeds and most packages can be built from it.
But also i want to keep a possibility (and it's also almost done) to make a GCC4.8/uClibc/binutils2.24 build using the same buildroot, which can use CC repo for non-kernel packages.
Im not sure im going to build both variants but also i don't want to be limited by any toolchain set.
to prevent your next question about why i don't want to switch to 3.18 kernel with CC codebase i will answer it here
there are two reasons at least
1st, porting ralink/mediatek low level kernel changes is a pain
2nd, 3.10 is simply faster, not as fast as 3.4 but with rt_cache backport it's almost as fast as 3.4 and much faster than 3.18. As example, ar71xx BB with rt_cache backport can reach ~30% more throughput in compare with a same target CC.