Hello Pierre, Pierre Langlois writes: > What about the pure CL source version, should I remove that one too? I > guess it doesn't hurt to keep it. I'm not agree to remove it because I don't understand a build system. The build farm succeeds to “build” it as I am. According to a build system documentation: Additionally, the corresponding source package should be labeled using the same convention as python packages (see *note Python Modules::), using the ‘cl-’ prefix. https://www.gnu.org/software/guix/manual/en/html_node/Build-Systems.html I think you might want to start a discussion on guix-devel. > Here's the updated patch. I've removed ecl-stumpwm but kept the pure > source cl-stumpwm variant. LGTM with minor changes in commit message, pushed as 4b193da3f959244112a85f996d630aa1ed6d0902 Thanks, Oleg.