From 55eedde6183c48cab437a0f2036e264996b8efdc Mon Sep 17 00:00:00 2001
From: Grimmauld <Grimmauld@grimmauld.de>
Date: Tue, 7 Oct 2025 13:54:15 +0200
Subject: [PATCH 1/2] Revert "libvdpau-va-gl: fix build with cmake4"

This reverts commit 1aaad1adbe24fafeeb30b50070ff9e239314ba2b.
---
 pkgs/by-name/li/libvdpau-va-gl/package.nix | 2 --
 1 file changed, 2 deletions(-)

diff --git a/pkgs/by-name/li/libvdpau-va-gl/package.nix b/pkgs/by-name/li/libvdpau-va-gl/package.nix
index 80e97c1d9ae3..7741308d9dc1 100644
--- a/pkgs/by-name/li/libvdpau-va-gl/package.nix
+++ b/pkgs/by-name/li/libvdpau-va-gl/package.nix
@@ -42,8 +42,6 @@ stdenv.mkDerivation rec {
     libGLU
   ];
 
-  cmakeFlags = [ "-DCMAKE_POLICY_VERSION_MINIMUM=3.5" ];
-
   doCheck = false; # fails. needs DRI access
 
   meta = with lib; {

From d13d8e272cf7b34b2b36673eca73d436c224b603 Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Sat, 20 Sep 2025 10:49:44 +0100
Subject: [PATCH 2/2] libvdpau-va-gl: pull upstream `cmake-4` fix

Without the change the build fails on` staging` as:

       CMake Error at CMakeLists.txt:2 (cmake_minimum_required):
         Compatibility with CMake < 3.5 has been removed from CMake.

Co-authored-by: Grimmauld <soeren@benjos.de>
---
 pkgs/by-name/li/libvdpau-va-gl/package.nix | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/pkgs/by-name/li/libvdpau-va-gl/package.nix b/pkgs/by-name/li/libvdpau-va-gl/package.nix
index 7741308d9dc1..b55f73762ac2 100644
--- a/pkgs/by-name/li/libvdpau-va-gl/package.nix
+++ b/pkgs/by-name/li/libvdpau-va-gl/package.nix
@@ -2,6 +2,7 @@
   lib,
   stdenv,
   fetchFromGitHub,
+  fetchpatch,
   cmake,
   pkg-config,
   libX11,
@@ -26,6 +27,25 @@ stdenv.mkDerivation rec {
     sha256 = "0asndybfv8xb0fx73sjjw5kydqrahqkm6n04lh589pbf18s5qlld";
   };
 
+  patches = [
+    # cmake-4 compatibility
+    (fetchpatch {
+      name = "cmake-4-1.patch";
+      url = "https://github.com/i-rinat/libvdpau-va-gl/commit/30c8ac91f3aa2843f7dc1c1d167e09fad447fd91.patch?full_index=1";
+      hash = "sha256-PFEqBg3NE0fVFBAW4zdDbh8eBfKyPX3BZ8P2M15Qq5A=";
+    })
+    (fetchpatch {
+      name = "cmake-4-2.patch";
+      url = "https://github.com/i-rinat/libvdpau-va-gl/commit/38c7d8fddb092824cbcdf2b11af519775930cc8b.patch?full_index=1";
+      hash = "sha256-XsX/GLIS2Ce7obQJ4uVhLDtTI1TrDAGi3ECxEH6oOFI=";
+    })
+    (fetchpatch {
+      name = "cmake-4-3.patch";
+      url = "https://github.com/i-rinat/libvdpau-va-gl/commit/a845e8720d900e4bcc89e7ee16106ce63b44af0.patch?full_index=1";
+      hash = "sha256-lhiZFDR2ytDmo9hQUT35IJS4KL4+nYWAOnxZlj7u3tM=";
+    })
+  ];
+
   nativeBuildInputs = [
     cmake
     pkg-config