We remove the waflib directory, so this doesn't exist.

--- v1.9.22/wscript	2023-02-02 12:26:35.000000000 +0000
+++ v1.9.22/wscript	2025-07-04 04:30:57.534760192 +0100
@@ -55,8 +55,6 @@
     opt.load('compiler_c')
     opt.load('autooptions')
 
-    opt.load('xcode6')
-
     opt.recurse('compat')
 
     # install directories