manastech/crystal — pull request #84 by booch (2014-02-01 01:51:12+00:00)
Title: Allow running icr without $CRYSTAL_PATH defined.

After getting `icr` to compile, it required setting the `CRYSTAL_PATH` environment variable to the source directory containing all the standard library code. This patch allows running `icr` without having to set that, and will assume that you're in the top level of the git repo (as the instructions say you should be).