diff -ur clx_0.5.4.original/clx.asd clx_0.5.4/clx.asd
--- clx_0.5.4.original/clx.asd	2003-11-10 20:14:52.000000000 -0600
+++ clx_0.5.4/clx.asd	2004-02-01 11:22:16.025557936 -0600
@@ -34,7 +34,7 @@
 
 (defclass legacy-file (static-file) ())
 
-(defsystem CLX
+#+sbcl (defsystem CLX
     :depends-on (sb-bsd-sockets)
     :version "0.5.4"
     :serial t
Only in clx_0.5.4: clx.asd.~1.16.~