| 26 Feb 2026 |
 Artturin | This should really be true so you can be sure that you have the right behaviour | 19:51:55 |
 dramforever | i can't tell if this crane thing is doing the right thing | 19:53:08 |
 @rosssmyth:matrix.org | If you are using Crane, if you use pkgsCross.mingwW64.callPackage, you do not have to manually specify windows.pthreads | 19:54:18 |
| @rosssmyth:matrix.org | Because of a change a really cool person did
https://github.com/ipetkov/crane/commit/7cc51a10ddafa9ed1693afdf26d1bffb6ce027a0 | 19:55:13 |
| dramforever | ... i fail to see how | 19:55:19 |
| dramforever | ooooh | 19:55:42 |
| @rosssmyth:matrix.org | It checks what stdenv is being used | 19:55:48 |
| dramforever | because it's handled in crane | 19:55:49 |
| @rosssmyth:matrix.org | I want to do this in Nixpkgs for rustPlatform.buildRustPackage but no one seems to be able to agree how to do it | 19:56:20 |
| @rosssmyth:matrix.org | So it's just not done atm | 19:56:28 |
| @rosssmyth:matrix.org | There is an attempt to do it, but it doesn't work | 19:56:38 |
| @rosssmyth:matrix.org | https://github.com/NixOS/nixpkgs/blob/254bfbcf45f588ecac20e2d79e163ee133037638/pkgs/build-support/rust/build-rust-package/default.nix#L164 | 19:57:16 |
| @rosssmyth:matrix.org | Doesn't work because rustc nor the rustc wrapper never looks are buildInputs | 19:57:38 |
| @rosssmyth:matrix.org | * Doesn't work because rustc nor the rustc wrapper never look at buildInputs | 19:57:45 |
| @rosssmyth:matrix.org | https://github.com/NixOS/nixpkgs/pull/457066 | 19:59:12 |
| dramforever | this is kind of weird | 20:01:30 |
| dramforever | so i don't understand why rustc needs to know this | 20:01:56 |
| @rosssmyth:matrix.org | Something about mingw requiring pthreads but most other targets don't so rustc doesn't try to link it by default. It's been a while since I looked into it. | 20:05:18 |
| @rosssmyth:matrix.org | * Something about mingw requiring pthreads but most other targets don't so rustc doesn't tell llvm link pthreads in by default. It's been a while since I looked into it. | 20:05:39 |
| @rosssmyth:matrix.org | * Something about mingw requiring pthreads but most other targets don't so rustc doesn't tell llvm to link pthreads in by default. It's been a while since I looked into it. | 20:05:45 |
| @rosssmyth:matrix.org | or maybe the opposite where rustc tells llvm to link it in uncondtionally | 20:06:52 |
| @rosssmyth:matrix.org | idk | 20:06:54 |
| @rosssmyth:matrix.org | * or maybe the opposite where rustc tells llvm to link it in uncondtionally, but only on mingw | 20:07:30 |
| dramforever | yeah your code does neither of that | 20:07:50 |
| dramforever | so what it makes me think is that all libraries are broken | 20:08:44 |
| @rosssmyth:matrix.org | It tells it where to find it | 20:08:45 |
| @rosssmyth:matrix.org | https://github.com/rust-lang/rust/blob/25396cf54981afd1fa5a7406658b45033106a0d3/compiler/rustc_target/src/spec/base/windows_gnu.rs#L70 | 20:08:56 |
| @rosssmyth:matrix.org | I believe this is the offending code | 20:09:02 |
| @rosssmyth:matrix.org | Where it says "pls link pthreads"
But since it's not anywhere normal on Nix, it cannot find it | 20:09:23 |
 emily | surely stdenv should just set up that path | 20:09:36 |
