From cda88a113efcbc043b8208d606c36e1f3ef02a5e Mon Sep 17 00:00:00 2001
From: Aaron Andersen <aaron@fosslib.net>
Date: Mon, 8 Dec 2025 22:44:31 -0500
Subject: [PATCH] mergerfs: 2.40.2 -> 2.41.1

---
 pkgs/tools/filesystems/mergerfs/default.nix | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/pkgs/tools/filesystems/mergerfs/default.nix b/pkgs/tools/filesystems/mergerfs/default.nix
index ff57c0c4ba78..fa15973aec95 100644
--- a/pkgs/tools/filesystems/mergerfs/default.nix
+++ b/pkgs/tools/filesystems/mergerfs/default.nix
@@ -15,15 +15,23 @@
 
 stdenv.mkDerivation rec {
   pname = "mergerfs";
-  version = "2.40.2";
+  version = "2.41.1";
 
   src = fetchFromGitHub {
     owner = "trapexit";
     repo = pname;
     rev = version;
-    sha256 = "sha256-3DfSGuTtM+h0IdtsIhLVXQxX5/Tj9G5Qcha3DWmyyq4=";
+    sha256 = "sha256-pXge+/5Ti4+e0aSbWLg6roIcg+3foAvSHP/Obd0EiE4=";
   };
 
+  env.NIX_CFLAGS_COMPILE = toString [
+    "-Wno-error=unused-result"
+    "-Wno-error=maybe-uninitialized"
+
+    # NOTE: _FORTIFY_SOURCE requires compiling with optimization (-O)
+    "-O"
+  ];
+
   nativeBuildInputs = [
     automake
     autoconf
@@ -33,9 +41,7 @@ stdenv.mkDerivation rec {
     pandoc
     which
   ];
-  prePatch = ''
-    sed -i -e '/chown/d' -e '/chmod/d' libfuse/Makefile
-  '';
+
   buildInputs = [
     attr
     libiconv
@@ -50,6 +56,8 @@ stdenv.mkDerivation rec {
     "XATTR_AVAILABLE=1"
     "PREFIX=/"
     "SBINDIR=/bin"
+    "CHMOD=true"
+    "CHOWN=true"
   ];
   enableParallelBuilding = true;