jruby/jruby — pull request #180 by mpapis (2012-05-25 15:36:16+00:00)
Title: remove ccache from CC / CXX to avoid doube ccache compilation errors

The problem is appearing only on `linux` as `mingw`, `win`, `darwin` and `solaris` overwrite `CC` - `Makefile` dose not overwrite compilation environment in a persistent way.