I pulled from git this morning and re-ran the tests and now the tests fail on CCL on Mac OS X:
Using /Users/rpg/ccl/dx86cl64 --no-init --quiet --batch Ran 38 tests: 34 passing and 4 failing failing test(s): asdf-pathname-test.script test-module-pathnames.script test-static-and-serial.script test-system-pathnames.script
That's the first test to run. ACL 8.2 fails as well, which suggests this might be a failure in the ASDF logic, instead of how it ties to a particular implementation.
More information as I gather it.
best, r