cl-trivial-features

Ensures consistent *FEATURES* in Common Lisp

trivial-features ensures consistent *FEATURES* across multiple Common Lisp implementations. For example, on MacOS X platforms, while most Lisps push :DARWIN to *FEATURES*, CLISP and Allegro push :MACOS and :MACOSX instead, respectively. Some Lisps might not push any feature suggesting MacOS X at all. trivial-features will make sure all Lisps will have :DARWIN in the *FEATURES* list when running on MacOS X.