Previously, ccache would end up using the system libzstd, which is not
supposed to be a build requirement.
Signed-off-by: Thomas Nixon <tom@tomn.co.uk>
Upstream switched to building with CMake. Adjust accordingly.
Reapplied patch as upstream changed the file format.
Added HOST_BUILD_PARALLEL for faster compilation.
Added cmake tool dependency and removed circular dependencies as a
result.
Adjusted dependent tools to use NOCACHE as they are needed to build
ccache.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
