From d63d6cb660f13c1551adce0d0cec6cb15309b3db Mon Sep 17 00:00:00 2001
From: Weijia Wang <9713184+wegank@users.noreply.github.com>
Date: Tue, 9 May 2023 11:28:25 +0300
Subject: [PATCH] python311Packages.hepmc3: fix build

---
 pkgs/applications/science/misc/root/default.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/applications/science/misc/root/default.nix b/pkgs/applications/science/misc/root/default.nix
index 037b8dfa09c7..1f8a2d3b8d54 100644
--- a/pkgs/applications/science/misc/root/default.nix
+++ b/pkgs/applications/science/misc/root/default.nix
@@ -122,6 +122,12 @@ stdenv.mkDerivation rec {
 
   patches = [
     ./sw_vers.patch
+  ] ++ lib.optionals (python.pkgs.pythonAtLeast "3.11") [
+    # Fix build against Python 3.11
+    (fetchpatch {
+      url = "https://github.com/root-project/root/commit/484deb056dacf768aba4954073b41105c431bffc.patch";
+      hash = "sha256-4qur2e3SxMIPgOg4IjlvuULR2BObuP7xdvs+LmNT2/s=";
+    })
   ];
 
   # Fix build against vanilla LLVM 9