erlang/otp — pull request #570 by richcarl (2014-12-23 15:39:21+00:00)
Title: Include Merl in Syntax Tools

The Merl library has been stable for quite some time now and has several users (and no known bugs). It's really just a simpler way of working with erl_syntax parse trees, and making it a part of syntax_tools will make metaprograming and run-time code generation a standard feature of the Erlang/OTP distribution.