From 1cd5004ff7497c054fb99b65e5f54ad977309330 Mon Sep 17 00:00:00 2001
From: David McFarland <corngood@gmail.com>
Date: Fri, 2 Jan 2026 23:49:21 +0000
Subject: [PATCH] openxr-loader: enable darwin build

---
 pkgs/by-name/op/openxr-loader/package.nix | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/pkgs/by-name/op/openxr-loader/package.nix b/pkgs/by-name/op/openxr-loader/package.nix
index 88b31fa697e5..9795bb769665 100644
--- a/pkgs/by-name/op/openxr-loader/package.nix
+++ b/pkgs/by-name/op/openxr-loader/package.nix
@@ -31,12 +31,14 @@ stdenv.mkDerivation rec {
     pkg-config
   ];
   buildInputs = [
-    libX11
-    libXxf86vm
-    libXrandr
     vulkan-headers
     libGL
     vulkan-loader
+  ]
+  ++ lib.optionals (!stdenv.hostPlatform.isDarwin) [
+    libX11
+    libXxf86vm
+    libXrandr
     wayland
   ];
 
@@ -45,8 +47,10 @@ stdenv.mkDerivation rec {
   outputs = [
     "out"
     "dev"
-    "layers"
-  ];
+  ]
+  # layers don't currently build on darwin
+  # https://github.com/KhronosGroup/OpenXR-SDK-Source/issues/582
+  ++ lib.optional (!stdenv.hostPlatform.isDarwin) "layers";
 
   # https://github.com/KhronosGroup/OpenXR-SDK-Source/issues/305
   postPatch = ''
@@ -54,7 +58,7 @@ stdenv.mkDerivation rec {
       --replace '$'{exec_prefix}/@CMAKE_INSTALL_LIBDIR@ @CMAKE_INSTALL_FULL_LIBDIR@
   '';
 
-  postInstall = ''
+  postInstall = lib.optionalString (!stdenv.hostPlatform.isDarwin) ''
     mkdir -p "$layers/share"
     mv "$out/share/openxr" "$layers/share"
     # Use absolute paths in manifests so no LD_LIBRARY_PATH shenanigans are necessary
@@ -68,7 +72,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Khronos OpenXR loader";
     homepage = "https://www.khronos.org/openxr";
-    platforms = lib.platforms.linux;
+    platforms = lib.platforms.linux ++ lib.platforms.darwin;
     license = lib.licenses.asl20;
     maintainers = [ lib.maintainers.ralith ];
   };