Hello.
I am running tests of some most often downloaded CL libraries, including CFFI.
So far CFFI was only tested on Linux. It has Linux, has different number (of expected and unexpected) failures on different Lisps.
The results may be found here: http://common-lisp.net/project/cl-test-grid/pivot_ql-lib_lisp.html
Clicking the ok/fail status refer to the test logs with the failures details.
Best regards, - Anton