See https://bugs.launchpad.net/asdf/+bug/1260011 http://www.lispworks.com/documentation/HyperSpec/Body/19_bbdc.htm

[2] CL-USER(5): (make-pathname :directory '(:relative :back)) #<THREAD "interpreter" {2B3B7C28}>: Debugger invoked on condition of type FILE-ERROR Unsupported directory component BACK. Restarts: 0: ABORT Return to debug level 2. 1: ABORT Return to debug level 1. 2: TOP-LEVEL Return to top level. [3] CL-USER(6): (lisp-implementation-version) "1.2.1" "OpenJDK_64-Bit_Server_VM-Sun_Microsystems_Inc.-1.6.0_27-b27" "amd64-Linux-3.8.0-34-generic" [3] CL-USER(7):

I suppose I can try to paper over it in ASDF.

—♯ƒ • François-René ÐVB Rideau •Reflection&Cybernethics• http://fare.tunes.org Anarchism is founded on the observation that since few men are wise enough to rule themselves, even fewer are wise enough to rule others. — Edward Abbey