From c3f52f3d79ffdd8aa858f7c5f366def8f2216ba2 Mon Sep 17 00:00:00 2001
From: Sarah Brofeldt <sarah@qtr.dk>
Date: Wed, 31 Aug 2022 09:55:27 +0200
Subject: [PATCH] overlay: fallback to default callPackage for stable nixpkgs

---
 overlay.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/overlay.nix b/overlay.nix
index 3034b54..6629049 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -1,6 +1,8 @@
 final: prev:
 let
-  callPackage = final.darwin.apple_sdk_11_0.callPackage;
+  # The newer Darwin SDK does not exist in current (nixos-22.05) stable
+  # branches, so just fallback to the default callPackage.
+  callPackage = final.darwin.apple_sdk_11_0.callPackage or final.callPackage;
 in
 {
   inherit (callPackage ./builder { }) buildGoApplication mkGoEnv;