When trying to use an mpd interface for common lisp, the corresponding asdf system having been named simply "mpd", I came across a peculiar problem. When I loaded the system, it would appear to succeed, yet when I tried to use the functions, it would claim they were undefined. Experimentally, I tried to rename the system "cl-mpd", and load that, only to find that it worked. I therefore concluded that ASDF were loading a different system, also named "mpd". Generally wanting to avoid such hackery as renaming systems, I looked for the offending system in the installation directories for quicklisp, to no avail. I searched for it in my home folder, with no success.
So now I ask you: is there a way to get the location of an ASDF system on disk?
