Typing `make' in this directory should build both the preprocessor (syntax/deriving) and the libraries (lib/deriving.cma, lib/deriving.cmxa). You can run the tests by changing to the test directory and building and running the `tests' executable $ cd tests $ make ... $ ./tests Tests succeeded! There's very limited documentation at present, but you should be able to get started by looking at the test files. Any comments are very welcome. Jeremy Yallop jeremy.yallop@ed.ac.uk