* The former definition for :long-long types in cffi-ecl.lisp was broken. I have agumented ECL with a feature that signals the existence of such a type in ECL and include a patch here for CFFI to take that into account. (Patch attached)
* Instead of defining NULL-POINTER-P, it would be better to simply reexport the symbol living in the "EXT" package. Patch attached.
* Upon reading the CFFI specification it seems that FOREIGN-FREE can only free memory that has been allocated by CFFI. However the test cases in misc-types.lsp do something else, deallocating the output of my_strdup() explicitely.
* At the low level ECL has two different foreign function interfaces: one used in the interpreter and relying on an external library (libffi) and another one, much simpler, using the C compiler. Right now CFFI was only using the former unless it was not available. I provide a patch that chooses the interface depending on the use of the code: interpreter or compiled. (patch attached).
* Is there the equivalent of launchpad for CFFI? Should I always submit the patches to the mailing list? I say this because there are other improvements I could forward when I find time.
Cheers
Juanjo