sstephenson/ruby-build — pull request #484 by yyuu (2013-12-30 12:59:49+00:00)
Title: Configure patch options via environment variables

I would like to configure the options for `patch` during `ruby-build`. For example, I need `-p1` as patch option to apply changeset from git repository.

```
git diff HEAD^ | env RUBY_PATCH_OPTS="-p1" rbenv install -p -v 2.1.0
```