| 3 Sep 2025 |
 Winter | is overriding the target's libc with crossOverlays expected to not do anything, instead needing to go through overlays? (i guess libc isn't used from targetPackages because [cc is grabbed from buildPackages](https://github.com/NixOS/nixpkgs/blob/c6a788f552b7b7af703b1a29802a7233c0067908/pkgs/stdenv/cross/default.nix#L106)?) | 15:00:26 |
| Winter | is there a way i'm missing to modify the libc used by the target system without modifying the libc used by the builder's stdenv? | 15:02:42 |
| Winter | though i'd expect libc to be taken from targetPackages, it's not: doing e.g. glibc = throw "" in crossOverlays does not throw | 15:04:10 |
| Winter | i think my dumb hackery is exacerbating my issues, disrgeard ^^ | 15:11:51 |
| Winter | * i think my dumb hackery is exacerbating my issues, disregard ^^ | 15:11:57 |
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 frontear | Is it possible to cross-compile mesa? I’ve got school projects that require writing OpenGL applications and they use Windows. I’d like to continue using Nix for the development shell and derivations, but I’d need to be able to cross-compile.
I gave the mesa derivation a cursory look and spotted that platforms.unix is the only one that’s defined. I was wondering if cross-compiling it had ever been attempted and whether it would be feasible to do so.
| 20:27:20 |
 Artturin | Cross compile yes
Cross compile for windows, dunno | 20:27:48 |
| Artturin | Probably not | 20:28:21 |
| Artturin | Python3 is marked as broken for windows so | 20:29:35 |
| frontear | Bummer, it’s a good thing I asked early then. Suppose I’ll have to cobble together a windows machine for this. | 20:30:15 |
| frontear | At the least for testing if the package compiles and works, I suppose I could continue to program it in a Nix devshell. | 20:30:41 |
| frontear | Thanks for the answer! | 20:30:54 |
 Alyssa Ross | Mesa depends on host Python 3?? | 20:30:59 |
 K900 | It makes no sense to cross Mesa to Windows anyway | 20:31:16 |
