I have fixed one more bug in ECL, this time related to the alignment of elementary C types (double, int, etc). We now gather the information from the compiler at compilation time, which is great, portable and robust. With this fix CFFI, plus the patches I submitted for the CFFI test suite, ECL has no unexpected failure and the output of the test suite is 4 out of 222 total tests failed: DEFCFUN.NOOP, CALLBACKS.BFF.1, CALLBACKS.BFF.2, STRING.ENCODINGS.ALL.BASIC. There remain two question. The simplest one is as follows: does it make sense to provide inline forms for %foreign-type-size and %foreign-type-alignment, or are they use scarcely? The second question is whether CFFI itself produces inline forms of the expressions dealing with foreign types. I mean conversion to/from lisp, etc. Juanjo -- Instituto de Física Fundamental, CSIC c/ Serrano, 113b, Madrid 28006 (Spain) http://tream.dreamhosters.com