manastech/crystal — pull request #83 by booch (2014-02-01 01:12:20+00:00)
Title: Add casts to make Readline.readline work again.

I couldn't get `icr` to compile on `master`:

```
in /Users/booch/Work/Projects/Crystal/crystal/src/readline.cr:8: argument 'prompt' of 'LibReadline#readline' must be Char*, not String
line = LibReadline.readline(prompt)
^~~~~~
```

This pull request fixes that, allowing `icr` to compile and run. (Although it won't run any code yet, due to not being able to find `"prelude"`.)