From 516519fbec449377d63043c027d9702d557b5fa5 Mon Sep 17 00:00:00 2001
From: Maximilian Bosch <maximilian@mbosch.me>
Date: Sun, 28 Sep 2025 12:53:10 +0200
Subject: [PATCH] libpisp: fix build w/ glibc-2.42

Failing Hydra build: https://hydra.nixos.org/build/308323206
---
 pkgs/by-name/li/libpisp/package.nix | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/pkgs/by-name/li/libpisp/package.nix b/pkgs/by-name/li/libpisp/package.nix
index b0d44498a5c1..6ee36b13ea8a 100644
--- a/pkgs/by-name/li/libpisp/package.nix
+++ b/pkgs/by-name/li/libpisp/package.nix
@@ -7,6 +7,7 @@
   ninja,
   boost,
   nlohmann_json,
+  fetchpatch,
 }:
 
 stdenv.mkDerivation (finalAttrs: {
@@ -20,6 +21,14 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-YshU7G5Rov67CVwFbf5ENp2j5ptAvkVrlMu85KmnEpk=";
   };
 
+  patches = [
+    # fix build with glibc 2.42 & -Werror
+    (fetchpatch {
+      url = "https://github.com/raspberrypi/libpisp/commit/f2bbf7e000d3f11cac235b8ea1291722080a016c.patch";
+      hash = "sha256-vrdmVadyjlAnZtmBahOs/hlKPrkh/BF3LvrTPM9D15Q=";
+    })
+  ];
+
   nativeBuildInputs = [
     pkg-config
     meson