Bolt is a logging tool for the OCaml language. It is inspired by and modeled after the famous log4j logging framework for Java.

Bolt is highly customizable and features a camlp4-based syntax extension (introducing a LOG msg LEVEL lvl expression) that allows to remove all logging statements to produce distributed executables that dot not incur any performance penalty for logging statements used during the development stage.

In order to improve the project, I am primarily looking for testers and bug reporters. Pointing errors in documentation and indicating where it should be enhanced is also very helpful.
The darcs repository is http://bolt.x9c.fr (read-only, useful to always get the last version).