From b4d105cafaee3e038dfe45affb293af23fe8ea14 Mon Sep 17 00:00:00 2001
From: Randy Eckenrode <randy@largeandhighquality.com>
Date: Sun, 5 Apr 2026 19:46:47 -0400
Subject: [PATCH] darwin.IOKitTools: migrate to use darwin.sourceRelease

---
 .../darwin/by-name/io/IOKitTools/package.nix       | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/pkgs/os-specific/darwin/by-name/io/IOKitTools/package.nix b/pkgs/os-specific/darwin/by-name/io/IOKitTools/package.nix
index 7d3077b10e4e..ea0ae1c12795 100644
--- a/pkgs/os-specific/darwin/by-name/io/IOKitTools/package.nix
+++ b/pkgs/os-specific/darwin/by-name/io/IOKitTools/package.nix
@@ -1,15 +1,23 @@
 {
-  lib,
   apple-sdk,
   mkAppleDerivation,
   ncurses,
   pkg-config,
+  pkgs,
   stdenvNoCC,
 }:
 
 let
-  iokitUser = apple-sdk.sourceRelease "IOKitUser";
-  xnu = apple-sdk.sourceRelease "xnu";
+  f =
+    pkgs: prev:
+    if !pkgs.stdenv.hostPlatform.isDarwin || pkgs.stdenv.name == "bootstrap-stage0-stdenv-darwin" then
+      prev.darwin.sourceRelease
+    else
+      f pkgs.stdenv.__bootPackages pkgs;
+  bootstrapSourceRelease = f pkgs pkgs;
+  # TODO(reckenrode): Use `sourceRelease` after migration has been merged and all releases updated to the same version.
+  iokitUser = bootstrapSourceRelease "IOKitUser";
+  xnu = bootstrapSourceRelease "xnu";
 
   privateHeaders = stdenvNoCC.mkDerivation {
     name = "IOKitTools-deps-private-headers";