Merge pull request #267340 from a-n-n-a-l-e-e/rbdoom-3-fix-build

rbdoom-3-bfg: apply upstream patch; fix build

pkgs/games/doom-ports/rbdoom-3-bfg/default.nix

···
 { lib
 , stdenv
 , fetchFromGitHub
+, fetchpatch
 , cmake
 , directx-shader-compiler
 , libGLU
···
     rev = "v${version}";
     hash = "sha256-bjjeTdbQDWTibSrIWhCnr6F0Ef17efLgWGQAAwezjUw=";
     fetchSubmodules = true;
+  };
+
+  patches = fetchpatch {
+    name = "replace-HLSL-ternary-operators.patch";
+    url = "https://github.com/RobertBeckebans/RBDOOM-3-BFG/commit/feffa4a4dd9a2a5f3c608f720cde41bea37797d3.patch";
+    hash = "sha256-aR1eoWZL3+ps7P7yFXFvGsMFxpUSBDiyBsja/ISin4I=";
   };
 
   postPatch = ''