| 3 Jul 2025 |
 Paul Meyer (katexochen) | There is also a section in the manual on versioned builders: https://nixos.org/manual/nixpkgs/unstable/#ssec-go-toolchain-versions | 14:18:38 |
| 5 Jul 2025 |
 jsnf | Ahhh got it, thank you so much! | 15:39:19 |
| 10 Jul 2025 |
|  @aerunakai:matrix.org joined the room. | 05:46:05 |
 kdn | is there a way to build system-independent Go binaries on NixOS? I'm trying to build an Alpine container that requires passing the binary externally and getting those pesky file not founds | 19:08:33 |
 Curid | why not use a scratch base instead of alpine? | 19:10:47 |
| kdn | could probably design it around scratch some time in the future, but right now I need to create an entrypoint bash script for the app and that's it | 19:12:08 |
| Curid | should be distro independent if you set CGO_ENABLE=0 | 19:14:08 |
 jrick | not necessarily. enabling pie will still use the dynamic loader | 19:16:24 |
| jrick | but you can override the path to the dynamic loader, and force it to use the standard path to the musl one which will work on alpine | 19:17:07 |
| Curid | patchelf --set-interpreter "/lib64/ld-linux-x86-64.so.2" file | 19:17:21 |
| jrick | there's that hack, but also there's a variable you can set in the go tooling | 19:17:38 |
| jrick | don't remember it exactly off top of my head, just that it exists | 19:17:52 |
| jrick | go tool link -extld <path> | 19:19:02 |
| jrick | so, set that with ldflags | 19:19:11 |
 Diamond (it/she) | CGO_ENABLED=0 definitely will work | 20:47:58 |
| Diamond (it/she) | if your binary still has PIE then you have to fix your environment | 20:48:03 |
| Diamond (it/she) | oh this is Nix, perfect! CGO_ENABLED=0 will work | 20:48:39 |
| Diamond (it/she) | i've done it before | 20:48:41 |
| jrick | pie without cgo doesn't really work. static pie is a thing, but go doesn't produce those | 20:50:31 |
| jrick | well it can, but i haven't tried to cross compile them | 20:50:58 |
| jrick | err, i have tried, and failed lol | 20:51:54 |
| kdn | yeah, CGO_ENABLED=0 go build works fine on NixOS | 20:52:15 |
| Diamond (it/she) | yeah for the explicit purpose of cross-building i wouldn't bother with PIE | 20:55:57 |
| Diamond (it/she) | or i guess just build a Nix OCI container instead | 20:56:14 |
| jrick | the issue with building static pie executables is that you need the target platform's ld.so and essentially embed it into the final binary | 20:57:05 |
| jrick | it works if you have the file and can set the appropriate go flags to link with it | 20:57:45 |
| jrick | but makes cross compiling a nightmare | 20:57:49 |
| kdn | I'd love to, but the team uses goreleaser to build for few-teen targets including different architectures, containers & operating systems | 20:58:28 |
| Diamond (it/she) | hm ic | 21:00:36 |
| kdn | I just wanted to adjust my local build to whatever they're running so I can make a proper entrypoint | 21:01:08 |
