mxcl/homebrew — pull request #11578 by newzealandpaul (2012-04-11 08:21:43+00:00)
Title: New Formula: tinyscheme

TinyScheme is a lightweight Scheme interpreter that implements as large
a subset of R5RS as was possible without getting very large and
complicated.

Upstream do not have access to a Mac, so they recomend patching the
primitive makefile to compile it on Mac OS X (or any other systems).