-# I /include/wx, /include/wx/gtk, /include/wx/msw, etc.
+# W /include/wx
+# K /include/wx/gtk K for gtK
+# F /include/wx/motif F for motiF
+# 9 /include/wx/msw 9 for Windows 9x
+# 2 /include/wx/os2 2 for os2
+# N /include/wx/generic N for geNeric
+# L /include/wx/html L for htmL
+# P /include/wx/protocol
+# S /include/wx/unix S for poSix