On Tue, 21 Jun 2022 at 11:33, Joachim Breitner
Hi,
Am Dienstag, dem 21.06.2022 um 10:47 +0100 schrieb Simon Marlow:
If it's backported to 9.2, then code wanting to use it would need to have a `ghc >= 9.2.4` constraint in the `.cabal` file, which is a bit unusual. We don't normally add new language features in a patchlevel release. But this isn't a strong argument for not doing it I guess - you would need that constraint if you relied on some bug that was fixed in 9.2.4 too.
Slight digression, but does Cabal even allow specifying bounds on the compiler implementation? If you put this into the build-depends it might have that effect, but it will also depend on ghc-the-library, not what people usually do.
Yes, you can do this (stolen from one of my .cabal files): if impl(ghc >= 8.8) buildable: True else buildable: False Cheers Simon
If I need to depend on a specific version of GHC, I tend to peek at
https://gitlab.haskell.org/ghc/ghc/-/wikis/commentary/libraries/version-hist... and hope that base was bumped together with it, and depend on that version of base. Is there a better way?
Cheers, Joachim -- Joachim Breitner mail@joachim-breitner.de http://www.joachim-breitner.de/
_______________________________________________ ghc-steering-committee mailing list ghc-steering-committee@haskell.org https://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-steering-committee