Icecream was started by SUSE about one decade ago and is like distcc in that it takes compile jobs from a build and distributes it amongst remote machines for a parallel build process. Where Icecream differentiates from distcc is that it employs a central server and dynamic scheduling for pushing off compile jobs to the fastest available server.
More details on the Icecream design and install/setup process can be found from its GitHub repository.
The Icecream 1.0.0 release was announced in this blog post. Icecream 1.0.0 moves to GitHub as its project-agnostic home and another new feature is out-of-the-box support for using the LLVM/Clang compiler rather than just GCC. The Clang integration includes using its plug-ins within Icecream too.