If you've went with chicken scheme, I recommend installing it from source code (has very few dependencies, so it isn't a time wasting process). The reason being that with the version that you might get from the OS package manager static libraries aren't shipped (at least that was the case in Fedora) and you won't be able to build statically linked executables.

The other upside of using chicken is that their FFI interop with C is really streamlined. From one of my projects; in order to expose the `getpass` C stdlib function in my program I only had to write the following line

    (bind "char* getpass(const char *prompt);")