Eric Bavier <ericbav...@openmailbox.org> writes: > Hello Ricardo, > > On 2016-09-30 04:24, Ricardo Wurmus wrote: >> Hi Guix, >> >> I’m in the middle of upgrading our Haskell packages. (Actually, I’m >> just yak shaving. I need “pandoc-citeproc” for “r-knitr”…) >> >> I noticed that upgrading Haskell packages is a pain in the neck because >> of propagated inputs. It seems that not all packages have fully >> declared dependencies and just work accidentally because of propagated >> inputs of a related package. This also makes upgrades more difficult >> because I can get substitutes from Hydra that depend on older versions >> of some Haskell packages. >> >> It looks like Haskell binaries actually embed references to other >> Haskell packages, so I’m not sure we actually need to propagate >> anything >> at all. Could someone please confirm this? > > Commit e17d513381296b (from almost a year ago!) was intended to allow us > to remove propagated inputs from our ghc-* packages. But I didn't > follow-up at the time, for reasons I forget now, in actually > un-propagating those inputs. So if you want to try to do that, it might > just work.
Thank you! That’s excellent. Commit 2d47cee25b8bb31d22e6803f1cb3e1679641e14a removes all propagation from haskell.scm. I rebuilt all packages and tested that things still work using “ghc-pandoc” both as an executable and as a library. ~~ Ricardo
