Hi, Ludovic Courtès <l...@gnu.org> skribis:
> If we squint a bit, we realize it’s the same thing but in a different > order, which is good news: it’s functionally equivalent. > > The downside is obvious: it’s stupidly non-deterministic, and we can end > up building the same grafts multiple times. > > The order differs in two places: in the definition of ‘%build-inputs’, > and in the definition of the ‘mapping’ variable. This can be solved by > sorting things in the right place, but that needs some thought. I posted a patch series that fixes this as a side-effect of switching to ‘gexp->derivation’: https://issues.guix.gnu.org/58579 That eliminates ‘%build-inputs’, which was one source of differences, and the ‘mapping’ variable is now populated in a deterministic fashion, though I must say it’s not entirely clear to me why this part has changed. Feedback welcome! Ludo’.
