| 20 Oct 2021 |
 sterni | I think actually lib.platforms is my source of truth and it can parse everything in there | 21:22:28 |
| sterni | because this code is mostly for populating badPlatforms and platforms in meta | 21:22:45 |
| sterni | and the other place where I'll use it accepts LLVM triples, so if someone needs some crazy platform, they can just use that | 21:23:22 |
 Alyssa Ross | When I say configure.ac is the source of truth, I say that because it's what generates these values | 21:23:53 |
| Alyssa Ross | lib.platforms is a static list. | 21:23:56 |
| Alyssa Ross | and sometimes I need to add things to lib.platforms | 21:24:08 |
| Alyssa Ross | so configure.ac is how you figure out what those should be | 21:24:17 |
| sterni | yeah, I understand what you were getting at | 21:24:27 |
| sterni | I just was trying to reign myself in | 21:24:45 |
| sterni | I should make this overly complicated for the sake of correctness | 21:24:55 |
| sterni | Alyssa Ross: okay so armv7a-linux-androideabi is possible in theory | 21:31:33 |
| sterni | configure.ac only strips version numbers from the kernel and gnu/musl suffixes it seems | 21:32:03 |
| sterni | probably the best solution would be to be more lenient with the system tuple | 21:33:40 |
| sterni | and use different flags for triple / tuple | 21:33:55 |
| Alyssa Ross | i assumed different flags was out of the question | 21:39:52 |
| Alyssa Ross | otherwise i can't imagine why you'd do it this way | 21:39:58 |
| Alyssa Ross | how did this get to be LLVM anyway? | 21:40:18 |
| sterni | cabal uses LLVM triples more or less | 21:40:53 |
| sterni | This is the flag we have
--system ARG host system (in either short Nix format or full LLVM
style) to use when evaluating the Cabal file
(default: x86_64-linux)
| 21:41:16 |
| sterni | whatever I do is gonna be a breaking change, but potentially only in edge cases | 21:42:27 |
| sterni | I could fully embrace it and redo it, but it'd be annoying for users I suppose | 21:42:42 |
| sterni | hmm seems like cabal-install/Cabal isn't dealing with triples/tuples very much | 21:48:58 |
| sterni | GHC may be using llvm triples | 21:49:05 |
| sterni | Cabal is very weird about this, e. g. it only has an interface for parsing triples, but will pretty print platforms as tuples | 21:49:38 |
| sterni | is darwin or osx canonical for LLVM triples? | 21:51:22 |
| 21 Oct 2021 |
| Alyssa Ross | sternenseemann: do you know where we map GNU triples to LLVM triples? | 09:38:37 |
| Alyssa Ross | GNU and LLVM disagree about whether it should be wasm32-unknown-none or wasm32-unknown-unknown | 09:42:29 |
| sterni | no, I'm not aware actually | 10:14:27 |
| sterni | I may have to dive into this business now; I haven't dived into that topic to much so far, so I was kind of hoping for you answering here bc you are a lot more knowledgeable than me here | 10:15:12 |
| 22 Oct 2021 |
| sterni | trofi: btw https://github.com/NixOS/nixpkgs/pull/87909 | 09:09:19 |
