Hi Luis! Thanks for the patch. I've released a new version incorporating your changes and I could successfully use it with CLISP on Linux and Win32 (but /not/ on Cygwin). The pathname changes don't seem to break anything for LispWorks, AllegroCL, or CMUCL. ChangeLog: Version 0.5.0 2005-09-26 Experimental CLISP/CFFI support (thanks to Luis Oliveira) Don't redefine what's already there (for LispWorks) Download: <http://weitz.de/files/cl-gd.tar.gz> Cheers, Edi.