opencolorio: fix build on darwin x86_64

use macos sdk 11.0 to allow Metal support to compile, but revert
use of -hidden-l because our toolchain on darwin x86_64 is too old
to support that

pkgs/development/libraries/opencolorio/default.nix

@@ -1,6 +1,7 @@
 { stdenv
 , lib
 , fetchFromGitHub
+, fetchpatch
 , cmake
 , expat
 , libyamlcpp
@@ -35,6 +36,15 @@ stdenv.mkDerivation rec {
     sha256 = "sha256-e1PpWjjfSjtgN9Rs/+lsA45Z9S4y4T6nqrJ02DZ4vjs=";
   };
 
+  patches = [
+    (fetchpatch {
+      name = "darwin-no-hidden-l.patch";
+      url = "https://github.com/AcademySoftwareFoundation/OpenColorIO/commit/48bab7c643ed8d108524d718e5038d836f906682.patch";
+      revert = true;
+      sha256 = "sha256-0DF+lwi2nfkUFG0wYvL3HYbhZS6SqGtPWoOabrFS1Eo=";
+    })
+  ];
+
   nativeBuildInputs = [ cmake ];
   buildInputs = [
     expat

pkgs/top-level/all-packages.nix

@@ -20871,8 +20871,8 @@ with pkgs;
 
   openldap = callPackage ../development/libraries/openldap { };
 
-  opencolorio = callPackage ../development/libraries/opencolorio {
-    inherit (darwin.apple_sdk.frameworks) Carbon GLUT Cocoa;
+  opencolorio = darwin.apple_sdk_11_0.callPackage ../development/libraries/opencolorio {
+    inherit (darwin.apple_sdk_11_0.frameworks) Carbon GLUT Cocoa;
   };
   opencolorio_1 = callPackage ../development/libraries/opencolorio/1.x.nix { };