From aaf5c54afd4ba60a5717d637181617c729f997cd Mon Sep 17 00:00:00 2001
From: Ivan Babrou <github@ivan.computer>
Date: Thu, 11 Feb 2021 09:36:43 -0800
Subject: [PATCH] libaom: disable runtime cpu detection on darwin (#112685)

CPU detection is only enabled for PPC and ARM. It's also not implemented
on Darwin, so no reason to keep it enabled there. This helps #105026.
---
 pkgs/development/libraries/libaom/default.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/development/libraries/libaom/default.nix b/pkgs/development/libraries/libaom/default.nix
index 9706cda03f8b..0522cdf2d500 100644
--- a/pkgs/development/libraries/libaom/default.nix
+++ b/pkgs/development/libraries/libaom/default.nix
@@ -32,6 +32,9 @@ stdenv.mkDerivation rec {
   cmakeFlags = [
     "-DBUILD_SHARED_LIBS=ON"
     "-DENABLE_TESTS=OFF"
+  ] ++ lib.optionals stdenv.isDarwin [
+    # CPU detection isn't supported on Darwin and breaks the aarch64-darwin build:
+    "-DCONFIG_RUNTIME_CPU_DETECT=OFF"
   ];
 
   postFixup = ''