Does anyone have a recipe for getting a more modern version of the Clang / LLVM toolchain working on the CircleCI Ubuntu 12.04 VM?
The existing options appear to be:
-The v3.0 Clang built into Ubuntu 12.04 (which lacks some C++11 and clang-format features)
-The v3.4 Clang available as a package on (which throws an error when I try to install it via apt-get on the VM)
-Building a v3.6 Clang from a PPA such as https://launchpad.net/~h-rayflood/+archive/ubuntu/llvm (which leads to time-outs because of the required dist-upgrade)
Does anyone else use a recent version of Clang in their CircleCI builds?