From 387a561429d6aa27611c2b0d03fb05604ac09bdd Mon Sep 17 00:00:00 2001
From: Tristan Ross <tristan.ross@midstall.com>
Date: Sun, 7 Jul 2024 18:13:56 -0700
Subject: [PATCH] overrideSDK: fix missing host platform inside of override

(cherry picked from commit cfe063d174d955f88ce73e39a6de2bced18de065)
---
 pkgs/stdenv/darwin/override-sdk.nix | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/pkgs/stdenv/darwin/override-sdk.nix b/pkgs/stdenv/darwin/override-sdk.nix
index 6de67537b4990..02d3cd4fb747f 100644
--- a/pkgs/stdenv/darwin/override-sdk.nix
+++ b/pkgs/stdenv/darwin/override-sdk.nix
@@ -403,13 +403,13 @@ let
     stdenv.override (
       old:
       {
-        buildPlatform = mkPlatform newVersion old.buildPlatform;
-        hostPlatform = mkPlatform newVersion old.hostPlatform;
-        targetPlatform = mkPlatform newVersion old.targetPlatform;
+        buildPlatform = mkPlatform newVersion stdenv.buildPlatform;
+        hostPlatform = mkPlatform newVersion stdenv.hostPlatform;
+        targetPlatform = mkPlatform newVersion stdenv.targetPlatform;
       }
       # Only perform replacements if the SDK version has changed. Changing only the
       # deployment target does not require replacing the libc or SDK dependencies.
-      // lib.optionalAttrs (old.hostPlatform.darwinSdkVersion != darwinSdkVersion) {
+      // lib.optionalAttrs (stdenv.hostPlatform.darwinSdkVersion != darwinSdkVersion) {
         allowedRequisites = null;
 
         mkDerivationFromStdenv = extendMkDerivationArgs old (mapInputsToSDK [