Your bug report #18747: "preferLocalBuild" fails to distinguish between offload and substitute which was filed against the guix package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 18747@debbugs.gnu.org. -- 18747: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=18747 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems