python3Packages.xformers: pass custom stdenv to buildPythonApplication with an override

leona-ya · leona-ya · commit ee013f1a6c1c · 2026-01-05T15:44:40.000+01:00
Passing `stdenv` directly to `buildPythonPackage` or `buildPythonApplication`
is deprecated with `oldestSupportedRelease = 2511`.
diff --git a/pkgs/development/python-modules/xformers/default.nix b/pkgs/development/python-modules/xformers/default.nix
@@ -35,8 +35,9 @@ let
   # version 0.0.32.post2 was confirmed to break CUDA.
   # Remove this note once the latest published revision "just works".
   version = "0.0.30";
+  effectiveStdenv = if cudaSupport then cudaPackages.backendStdenv else stdenv;
 in
-buildPythonPackage {
+buildPythonPackage.override { stdenv = effectiveStdenv; } {
   pname = "xformers";
   inherit version;
   pyproject = true;
@@ -66,8 +67,6 @@ buildPythonPackage {
     TORCH_CUDA_ARCH_LIST = "${lib.concatStringsSep ";" torch.cudaCapabilities}";
   };
 
-  stdenv = if cudaSupport then cudaPackages.backendStdenv else stdenv;
-
   buildInputs =
     lib.optional stdenv.hostPlatform.isDarwin openmp
     ++ lib.optionals cudaSupport (
