python3Packages.torch: fix ROCm build by disabling USE_FBGEMM_GENAI

pkgs/development/python-modules/torch/source/default.nix

@@ -521,6 +521,9 @@ buildPythonPackage.override { inherit stdenv; } rec {
   }
   // lib.optionalAttrs rocmSupport {
     AOTRITON_INSTALLED_PREFIX = "${rocmPackages.aotriton}";
+    # Broken HIP flag setup, fails to compile due to not finding rocthrust
+    # Only supports gfx942 so let's turn it off for now
+    USE_FBGEMM_GENAI = setBool false;
   };
 
   nativeBuildInputs = [