| 8 Feb 2026 |
 sterni (he/him) | should be rebuild as it has a Cabal input. Check what version it is and what constraints it has on Cabal. Maybe it just doesn't allow 3.12. | 12:39:34 |
 chreekat | cool, things seem to be progressing by setting jailbreak = true for the package. Oh, what terrors may await | 12:43:33 |
| chreekat | (I thought about just bumping the nixpkgs pin to pick up a newer version of Cabal, but since this particular project is upstream of the snapshots that are upstream of nixpkgs packages I thought it would be good to ensure I can independently upgrade Cabal to pick up packages that use newer versions) | 12:44:39 |
| chreekat | damn, that changed the hash and rebuilt some stuff, but it did not get any further | 12:45:35 |
| sterni (he/him) | you can try passing --constraint=Cabal>=3.12 as a configure flag | 12:46:33 |
| chreekat | ooh, neat, searching for a flag like that found some good examples of massaging dependencies on Cabal | 12:48:47 |
| chreekat | This did a thing, but it created an impossible condition by adding && Cabal>=3.12 to every existing branch of the constraint on Cabal :)
Error: Setup: Encountered missing or private dependencies:
Cabal ((>=1.14 && <1.26 || >=2.0 && <2.6 || >=3.0 && <3.7) && >=3.12) &&
(>=1.14 && <1.26 || >=2.0 && <2.6 || >=3.0 && <3.7) && >=3.12 || (>=3.7 &&
<3.12) && >=3.12,
| 12:58:37 |
| sterni (he/him) | ah right the constraints are behind a conditional, so jailbreak won't relax them. | 13:00:23 |
| sterni (he/him) | you need to either patch that or more likely upgrade to a version of hackage-security that does support Cabal 3.12 since I doubt it will build even if you patch the cabal file | 13:00:58 |
| chreekat | ok, i'll fall back to just bumping the nixpkgs pin for now | 13:01:26 |
| chreekat | thanks for the help! | 13:03:26 |
| sterni (he/him) | wonder when one of those cabal install plan to nix generator projects finally pans out. Should be very possible to make one. I think those would be pretty useful, or alternatively ig revive something like stackage2nix | 13:07:27 |
| sterni (he/him) | maybe people just need to stop trying to make it happen with ifd first… | 13:07:38 |
| chreekat | for real | 13:50:38 |
 toonn | Can it be done without IFD? Or are you talking about the cabal2nix approach, generating it ahead of time? | 13:57:31 |
| chreekat | What's that new thing that's some sort of recursive nix? Ah, this: https://github.com/NixOS/rfcs/blob/master/rfcs/0092-plan-dynamism.md | 14:03:01 |
| toonn | Without IFD or a functional equivalent, I guess. | 14:08:13 |
| chreekat | I'm pumped about this, I feel like it could do something special with stackage | 14:17:42 |
| chreekat | Specifically casa | 14:17:53 |
 Teo (he/him) | Yeah I used it here for getting cabal files but using nix and casa for packages seems trickier cause the hashing is different(?) https://github.com/cdepillabout/stacklock2nix/commit/3b6eee1ccb533a588be12666ea14e5e05bfe0183 | 15:18:54 |
| 20 May 2021 |
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