From 2730404ca528c5ad5c3bee0f78cb2f2770a63a9b Mon Sep 17 00:00:00 2001
From: Rodrigo Arias Mallo <rodrigo.arias@bsc.es>
Date: Wed, 15 Jan 2025 13:16:10 +0100
Subject: [PATCH] Fix MPICH build by fetching upstream patches too
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Reviewed-by: Aleix Boné <abonerib@bsc.es>
---
 pkgs/overlay.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/overlay.nix b/pkgs/overlay.nix
index a36961b..5977ab0 100644
--- a/pkgs/overlay.nix
+++ b/pkgs/overlay.nix
@@ -11,7 +11,7 @@ final: prev:
       paths = [ pmix.dev pmix.out ];
     };
   in prev.mpich.overrideAttrs (old: {
-    patches = [
+    patches = (old.patches or []) ++ [
       # See https://github.com/pmodels/mpich/issues/6946
       ./mpich-fix-hwtopo.patch
     ];