Excerpts from Joel Reymont's message of Thu Mar 05 16:04:09 +0100 2009:
> I looked at the Camlp4 filter wiki [1] but still can't figure this out.
> 
> + ocamlfind ocamlc -package 'oUnit, dyp, extlib' -c -I +camlp4 -g -w a  
> -pp 'camlp4of -I src -filter map' -I src -o src/easy_type_check.cmo  
> src/easy_type_check.ml
> File "src/easy_type_check.ml", line 45, characters 10-15:
> Error: This expression has no method expr
> 
> This used to work fine in 3.10.x and the error points to "match  
> super#expr e with" in strip_token_loc below.

Can you look at (or post) the result of the generation?

$ camlp4of -I src -filter map src/easy_type_check.ml


-- 
Nicolas Pouillard