+;; Tell some Lisps about my home directory.
+#+sbcl (require :sb-posix)
+#+cmu (ext:clear-search-list "HOME")
+#+(and unix (or sbcl clisp cmu))
+(let* ((#1=#:homestring (or #+sbcl (sb-posix:getenv "HOME")
+ #+clisp (ext:getenv "HOME")
+ #+cmu (unix:unix-getenv "HOME")
+ "/home/mdw"))
+ (#2=#:home (pathname (concatenate 'string #1# "/"))))
+ (setf (logical-pathname-translations "HOME")
+ `(("HOME:**;*.*.*" ,(merge-pathnames "**/*.*" #2# nil)))
+ (logical-pathname-translations "CL")
+ '(("CL:SOURCE;**;*.*.*" #p"/usr/share/common-lisp/source/**/*.*")
+ ("CL:SYSTEMS;**;*.*.*" #p"/usr/share/common-lisp/systems/**/*.*"))))
+