Handle OC1 compilation error on non-linux platforms

The CLI currently crashes when running on non-Linux platforms as it tries to compile OC1 and fails. These code changes gracefully handle all scenarios where the OC1 compilation fails (or OC1 files are not found). It is not tied to Linux as such, but raises an exception when one of the OC1 problems arise. Hence, we also handle the situation where, say, make is not installed on Linux.