Ludovic Courtès writes: > The question for us becomes how to ensure long-term reproducibility in > the presence of such bugs. > > In this case, I think the only solution would be to change the system > clock when one rebuilds GnuTLS (or to use ‘--without-tests=gnutls’, but > you end up with different derivations, which is not necessarily > desirable). > > Thoughts? There is a related bug report here: https://issues.guix.gnu.org/39310 Perhaps we could make a "--with-system-clock" option for 'guix build' that instructs the daemon to fake the system time?