From e99678639dfbfa651ba84c3030ea5568cb9e975c Mon Sep 17 00:00:00 2001
From: Ivan Babrou <github@ivan.computer>
Date: Thu, 11 Feb 2021 23:28:02 -0800
Subject: [PATCH] libaom: only disable cpu detectio on arm64 and do it as
 recommended

Having `OFF` instead of `0` makes x86_64 build unhappy.
---
 pkgs/development/libraries/libaom/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/libraries/libaom/default.nix b/pkgs/development/libraries/libaom/default.nix
index 0522cdf2d50..e35f8385915 100644
--- a/pkgs/development/libraries/libaom/default.nix
+++ b/pkgs/development/libraries/libaom/default.nix
@@ -32,9 +32,9 @@ stdenv.mkDerivation rec {
   cmakeFlags = [
     "-DBUILD_SHARED_LIBS=ON"
     "-DENABLE_TESTS=OFF"
-  ] ++ lib.optionals stdenv.isDarwin [
+  ] ++ lib.optionals (stdenv.isDarwin && stdenv.isAarch64) [
     # CPU detection isn't supported on Darwin and breaks the aarch64-darwin build:
-    "-DCONFIG_RUNTIME_CPU_DETECT=OFF"
+    "-DCONFIG_RUNTIME_CPU_DETECT=0"
   ];
 
   postFixup = ''