Error 127 means file not found. To run autoreconf, you need to add autoconf and automake in the native-inputs of your package. On February 19, 2022 12:11:17 PM GMT+01:00, Tobias Platen wrote: >Hello, > >I added the CWiid package to guix, and now autoconf fails when >building. I attached the logs and the package definition. > >Tobias > >