From 6674d1f42002ddbbffaa9d8a63bb2f2dbd0af342 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Na=C3=AFm=20Favier?= <n@monade.li>
Date: Fri, 21 Oct 2022 11:24:12 +0200
Subject: [PATCH] ncdu: fix cpu impurity

---
 pkgs/tools/misc/ncdu/default.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/tools/misc/ncdu/default.nix b/pkgs/tools/misc/ncdu/default.nix
index 0cfb78bcf0bc..4844e81079a6 100644
--- a/pkgs/tools/misc/ncdu/default.nix
+++ b/pkgs/tools/misc/ncdu/default.nix
@@ -19,6 +19,9 @@ stdenv.mkDerivation rec {
 
   PREFIX = placeholder "out";
 
+  # Avoid CPU feature impurity, see https://github.com/NixOS/nixpkgs/issues/169461
+  ZIG_FLAGS = "-Drelease-safe -Dcpu=baseline";
+
   meta = with lib; {
     description = "Disk usage analyzer with an ncurses interface";
     homepage = "https://dev.yorhel.nl/ncdu";