Update: the compilation error was actually due to some missing includes. https://github.com/kentonv/capnproto/pull/47 https://github.com/kentonv/capnproto/pull/

Update: the compilation error was actually due to some missing includes. https://github.com/kentonv/capnproto/pull/47 https://github.com/kentonv/capnproto/pull/47 Switching compilers on the C++ side doesn't seem to make a significant difference in performance.