!ayCRiZriCVtuCUpeLp:nixos.org

Nix Cross Compiling

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19 Oct 2025
@matthewcroughan:defenestrate.itmatthewcroughansomething somewhere in nixos must be overriding that13:11:39
@matthewcroughan:defenestrate.itmatthewcroughanthe net result is two util-lnux's in the closure even if the main one is minimal13:11:52
@matthewcroughan:defenestrate.itmatthewcroughan
modules/system/boot/loader/systemd-boot/systemd-boot.nix
79:        ${pkgs.util-linuxMinimal}/bin/findmnt ${efiSysMountPoint} > /dev/null || fail efiSysMountPoint ${efiSysMountPoint}
81:          "${pkgs.util-linuxMinimal}/bin/findmnt ${cfg.xbootldrMountPoint} > /dev/null || fail xbootldrMountPoint ${cfg.xbootldrMountPoint}"
13:12:27
@matthewcroughan:defenestrate.itmatthewcroughanYup.. made them align, now I'm good 13:15:39
@matthewcroughan:defenestrate.itmatthewcroughanimage.png
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13:15:41
@matthewcroughan:defenestrate.itmatthewcroughanimage.png
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13:30:41
@matthewcroughan:defenestrate.itmatthewcroughanhmm, why does the initrd depend on shadow 13:31:01
@matthewcroughan:defenestrate.itmatthewcroughan it's initrd-shells but I can't find this in nixpkgs as a string 13:33:23
@matthewcroughan:defenestrate.itmatthewcroughan this is with bashless though, so boot.initrd.shell.enable should be false13:34:44
@matthewcroughan:defenestrate.itmatthewcroughanand it is, so this is a weird inclusion13:34:50
@grimmauld:grapevine.grimmauld.deGrimmauld (any/all)

matthewcroughan: i have copied the nixosTests.login and added security.enableWrappers = false + pwaccess stuff, and the test is succeeding. Its screaming at me and i am definitely doing things wrong, but this might be progress?

Bad news is, pwaccess uses fgetspent / fgetspent which are unavailable on musl. Not sure yet how i'll fix that pain

16:20:42
@grimmauld:grapevine.grimmauld.deGrimmauld (any/all) *

matthewcroughan: i have copied the nixosTests.login and added security.enableWrappers = false + pwaccess stuff, and the test is succeeding. Its screaming at me and i am definitely doing things wrong, but this might be progress?

Bad news is, pwaccess uses fgetspent_r / fgetspent_r which are unavailable on musl. Not sure yet how i'll fix that pain

16:21:32
@grimmauld:grapevine.grimmauld.deGrimmauld (any/all)Anyways, my WIP tree is at https://github.com/NixOS/nixpkgs/pull/453557, opened a draft PR to track this.16:32:20
@dramforever:matrix.orgdramforeverthere's like one thread https://inbox.vuxu.org/musl/4ac5ac1b-217f-442f-fc35-bfbf015287bb@adelielinux.org/16:36:30
@dramforever:matrix.orgdramforevergood lord is the official openwall mailing list site unusable16:37:01
@dramforever:matrix.orgdramforeveror maybe i'm spoiled by whatever this superior mailing list archive viewer is16:38:30
@dramforever:matrix.orgdramforeverapparently it's just called public-inbox16:39:10
@grimmauld:grapevine.grimmauld.deGrimmauld (any/all)so uh, one thread in 2019 and nothing since?16:47:06
@grimmauld:grapevine.grimmauld.deGrimmauld (any/all)Thats kinda disappointing16:47:12
@dramforever:matrix.orgdramforeverthere's an implementation https://inbox.vuxu.org/musl/20190120154154.GA23924@voyager/16:47:52
@dramforever:matrix.orgdramforever

with the best line of code i've seen this week

size = INT_MAX; //2GB ought to be enough for anyone
16:48:29
@grimmauld:grapevine.grimmauld.deGrimmauld (any/all)

Yeah, i found that a few hours ago, alpine uses that: https://gitlab.alpinelinux.org/alpine/aports/-/blob/3.22-stable/community/accountsservice/musl-fgetspent_r.patch

But fgetpwent_r is broken the same way

16:49:07
@dramforever:matrix.orgdramforeverunfortunately it does seem that you need to patch musl to get it16:49:08
@grimmauld:grapevine.grimmauld.deGrimmauld (any/all)its just a shim, i can inline the shim16:49:27
@dramforever:matrix.orgdramforeverokay you tricked me you wrote fgetspent_r twice 😆16:49:49
@grimmauld:grapevine.grimmauld.deGrimmauld (any/all) *

Yeah, i found that a few hours ago, alpine uses something like that: https://gitlab.alpinelinux.org/alpine/aports/-/blob/3.22-stable/community/accountsservice/musl-fgetspent_r.patch

But fgetpwent_r is broken the same way

16:49:54
@grimmauld:grapevine.grimmauld.deGrimmauld (any/all)OH16:49:59
@grimmauld:grapevine.grimmauld.deGrimmauld (any/all)shit16:50:00
@grimmauld:grapevine.grimmauld.deGrimmauld (any/all)sorry16:50:04
@grimmauld:grapevine.grimmauld.deGrimmauld (any/all) *

matthewcroughan: i have copied the nixosTests.login and added security.enableWrappers = false + pwaccess stuff, and the test is succeeding. Its screaming at me and i am definitely doing things wrong, but this might be progress?

Bad news is, pwaccess uses fgetspent_r / ~~fgetspent_r~~ fgetpwent_r which are unavailable on musl. Not sure yet how i'll fix that pain

16:50:18

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