Hi Liliana, Thanks for your suggestions!
> The search-patch procedure in (gnu packages) – which see – uses the > %patch-path parameter to figure out where patches come from. > Typically, you'd place patches in the root directory, or somewhere > within your GUILE_LOAD_PATH to have them picked up, but I do recommend > writing your own (search-patch) or parameterizing %patch-path if you > want to place them in a special location. The second technique (parameterizing) is what Nicolas proposed as well. It's fine for a small number of packages requiring patches (my case so far), but a bit verbose if used frequently. Writing my own search-patch has the advantage of being done once for the whole channel. Maybe I'll end up doing that. Cheers, Konrad.