From cb2790089bb55060bbf718d03fe915b9bb0eaac5 Mon Sep 17 00:00:00 2001
From: Marcin Serwin <marcin@serwin.dev>
Date: Wed, 10 Sep 2025 20:46:26 +0200
Subject: [PATCH] shader-slang: unvendor unordered_dense

Signed-off-by: Marcin Serwin <marcin@serwin.dev>
---
 pkgs/by-name/sh/shader-slang/package.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/by-name/sh/shader-slang/package.nix b/pkgs/by-name/sh/shader-slang/package.nix
index d85dc3803ac5..46040c7d5408 100644
--- a/pkgs/by-name/sh/shader-slang/package.nix
+++ b/pkgs/by-name/sh/shader-slang/package.nix
@@ -10,6 +10,7 @@
   libxml2,
   libX11,
   glslang,
+  unordered_dense,
   llvmPackages_14,
   versionCheckHook,
   gitUpdater,
@@ -66,6 +67,7 @@ stdenv.mkDerivation (finalAttrs: {
     miniz
     lz4
     libxml2
+    unordered_dense
   ]
   ++ lib.optionals stdenv.hostPlatform.isLinux [
     libX11
@@ -109,6 +111,7 @@ stdenv.mkDerivation (finalAttrs: {
     "-DSLANG_VERSION_FULL=v${finalAttrs.version}-nixpkgs"
     "-DSLANG_USE_SYSTEM_MINIZ=ON"
     "-DSLANG_USE_SYSTEM_LZ4=ON"
+    (lib.cmakeBool "SLANG_USE_SYSTEM_UNORDERED_DENSE" true)
     "-DSLANG_SLANG_LLVM_FLAVOR=${if withLLVM then "USE_SYSTEM_LLVM" else "DISABLE"}"
     # slang-rhi tries to download headers and precompiled binaries for these backends
     "-DSLANG_RHI_ENABLE_OPTIX=OFF"