51 lines
1.6 KiB
Nix
51 lines
1.6 KiB
Nix
{ lib
|
|
, makeSetupHook
|
|
, zig
|
|
}:
|
|
|
|
makeSetupHook {
|
|
name = "zig-hook";
|
|
|
|
propagatedBuildInputs = [ zig ];
|
|
|
|
substitutions = {
|
|
# This zig_default_flags below is meant to avoid CPU feature impurity in
|
|
# Nixpkgs. However, this flagset is "unstable": it is specifically meant to
|
|
# be controlled by the upstream development team - being up to that team
|
|
# exposing or not that flags to the outside (especially the package manager
|
|
# teams).
|
|
|
|
# Because of this hurdle, @andrewrk from Zig Software Foundation proposed
|
|
# some solutions for this issue. Hopefully they will be implemented in
|
|
# future releases of Zig. When this happens, this flagset should be
|
|
# revisited accordingly.
|
|
|
|
# Below are some useful links describing the discovery process of this 'bug'
|
|
# in Nixpkgs:
|
|
|
|
# https://github.com/NixOS/nixpkgs/issues/169461
|
|
# https://github.com/NixOS/nixpkgs/issues/185644
|
|
# https://github.com/NixOS/nixpkgs/pull/197046
|
|
# https://github.com/NixOS/nixpkgs/pull/241741#issuecomment-1624227485
|
|
# https://github.com/ziglang/zig/issues/14281#issuecomment-1624220653
|
|
|
|
zig_default_flags =
|
|
let
|
|
releaseType =
|
|
if lib.versionAtLeast zig.version "0.12" then
|
|
"--release=safe"
|
|
else if lib.versionAtLeast zig.version "0.11" then
|
|
"-Doptimize=ReleaseSafe"
|
|
else
|
|
"-Drelease-safe=true";
|
|
in
|
|
[ "-Dcpu=baseline" releaseType ];
|
|
};
|
|
|
|
passthru = { inherit zig; };
|
|
|
|
meta = {
|
|
description = "Setup hook for using the Zig compiler in Nixpkgs";
|
|
inherit (zig.meta) maintainers platforms broken;
|
|
};
|
|
} ./setup-hook.sh
|