From 664464a5dd9e603944943543506e16a0d80349aa Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Sun, 26 Jan 2025 22:22:45 +0000
Subject: [PATCH] libburn: backport upstream C23 fix

Without the change the build against c23 compiler (like `gcc-15`) fails as:

    libburn> test/poll.c: In function 'main':
    libburn> test/poll.c:67:27: error: assignment to '__sighandler_t' {aka 'void (*)(int)'} from incompatible pointer type 'void (*)(void)' []
    libburn>    67 |         newact.sa_handler = catch_int;
    libburn>       |                           ^
---
 pkgs/by-name/li/libburn/package.nix | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/pkgs/by-name/li/libburn/package.nix b/pkgs/by-name/li/libburn/package.nix
index 4f3e60bf90ce..4d4901901ac5 100644
--- a/pkgs/by-name/li/libburn/package.nix
+++ b/pkgs/by-name/li/libburn/package.nix
@@ -2,6 +2,7 @@
   lib,
   stdenv,
   fetchFromGitea,
+  fetchpatch,
   autoreconfHook,
   pkg-config,
 }:
@@ -18,6 +19,15 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-Xo45X4374FXvlrJ4Q0PahYvuWXO0k3N0ke0mbURYt54=";
   };
 
+  patches = [
+    # Fix the build against C23 compilers (like gcc-15):
+    (fetchpatch {
+      name = "c23.patch";
+      url = "https://dev.lovelyhq.com/libburnia/libburn/commit/d537f9dd35282df834a311ead5f113af67d223b3.patch";
+      hash = "sha256-aouU/6AchLhzMzvkVvUnFHWfebYTrkEJ6P3fF5pvE9M=";
+    })
+  ];
+
   nativeBuildInputs = [
     autoreconfHook
     pkg-config