From d181cce164cf53c66b7eaca1086b715fd9ac79c9 Mon Sep 17 00:00:00 2001
From: Gaetan Lepage <gaetan@glepage.com>
Date: Wed, 10 Jun 2026 12:58:58 +0000
Subject: [PATCH] python3Packages.deep-ep: add missing ninja build-system

---
 pkgs/development/python-modules/deep-ep/default.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/deep-ep/default.nix b/pkgs/development/python-modules/deep-ep/default.nix
index 0ad6abb30b53..e44a19e92407 100644
--- a/pkgs/development/python-modules/deep-ep/default.nix
+++ b/pkgs/development/python-modules/deep-ep/default.nix
@@ -4,8 +4,9 @@
   fetchFromGitHub,
 
   # build-system
-  torch,
+  ninja,
   setuptools,
+  torch,
 
   # env
   cudaPackages,
@@ -50,6 +51,7 @@ buildPythonPackage.override { inherit (torch) stdenv; } (finalAttrs: {
   };
 
   build-system = [
+    ninja
     setuptools
     torch
   ];