From 775b8685460eedfa44a686bc453b9078616c5edc Mon Sep 17 00:00:00 2001
From: whispers <whispersofthedawn@duck.com>
Date: Wed, 1 Jul 2026 08:31:46 -0400
Subject: [PATCH] sbsigntool: make unused-but-set-variable non-fatal for gcc 16

since sbsigntool builds with -Werror by default, and gcc 16's unused
variable analysis is better than previous versions, this causes a build
failure.
---
 pkgs/by-name/sb/sbsigntool/package.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/by-name/sb/sbsigntool/package.nix b/pkgs/by-name/sb/sbsigntool/package.nix
index 4721ada70681..f0031367fea8 100644
--- a/pkgs/by-name/sb/sbsigntool/package.nix
+++ b/pkgs/by-name/sb/sbsigntool/package.nix
@@ -61,6 +61,10 @@ stdenv.mkDerivation (finalAttrs: {
     automake --add-missing -Wno-portability
   '';
 
+  # GCC 16's unused variable analysis is more advanced, leading to a build
+  # failure since sbsigntool builds with -Wno-error.
+  configureFlags = [ "CFLAGS=-Wno-error=unused-but-set-variable" ];
+
   makeFlags = [
     "AR=${stdenv.cc.targetPrefix}ar"
   ];