Jesse wrote: > I do not know if this is specific to guix or a problem generally with Calibre > 5.36.
As far as I can tell, it's a problem introduced by Guix, as I noticed it occurring with Calibre 5.21. For what it's worth, I have the latest working version that I can find installed. guix time-machine --commit=b603554ed044638dd40b6863d5dada59eefe03b8 -- package -i calibre Leo: I've continued to attempt the last bisect I mentioned, but I'm bogged down by repeated build errors that force me to skip more commits than I can test. Is there a trick to building the commits which got merged in; Do they not work with time-machine? The errors I'm seeing are of the form: guix time-machine: error: You found a bug: the program '/gnu/store/mqhfdbrl834biajwq667fzsck344g09s-compute-guix-derivation' failed to compute the derivation for Guix (version: "b2b799e2d8330af934f48bf66afb5114addb4dd7"; system: "x86_64-linux"; host version: "1af78ab5e80b98d1914b85709c60fa7f9782e1db"; pull-version: 1). Please report it by email to <bug-guix@gnu.org>. That latest failure seems to be related to tcsh, but that's not the only derivation which has failed for me in the same way.
