From 47342693cedbc04330d2b75fa1a4b251f225776c Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Tue, 29 Sep 2026 22:03:44 +0100
Subject: [PATCH] liquidwar: drop `-Werror` (gcc-16 fix)

Without the change `liquidwar` build fails on `master` as
https://hydra.nixos.org/build/347153247:

```
p2p-node.c:912:7: error: variable 'send_i' set but not used [-Werror=unused-but-set-variable=]
  912 |   int send_i = 0;
      |       ^~~~~~
cc1: all warnings being treated as errors
```
---
 pkgs/by-name/li/liquidwar/package.nix | 22 +++++++---------------
 1 file changed, 7 insertions(+), 15 deletions(-)

diff --git a/pkgs/by-name/li/liquidwar/package.nix b/pkgs/by-name/li/liquidwar/package.nix
index 35761a6e8d8d..51fe6b6de60a 100644
--- a/pkgs/by-name/li/liquidwar/package.nix
+++ b/pkgs/by-name/li/liquidwar/package.nix
@@ -90,21 +90,13 @@ stdenv.mkDerivation (finalAttrs: {
 
   hardeningDisable = [ "format" ];
 
-  env.NIX_CFLAGS_COMPILE = toString (
-    lib.optionals (stdenv.cc.isGNU && lib.versionAtLeast stdenv.cc.version "12") [
-      # Needed with GCC 12 but problematic with some old GCCs
-      "-Wno-error=address"
-      "-Wno-error=use-after-free"
-      "-std=gnu17"
-      # Fix build w/ glibc-2.44
-      "-Wno-error=discarded-qualifiers"
-    ]
-    ++ [
-      "-Wno-error=deprecated-declarations"
-      # Avoid GL_GLEXT_VERSION double definition
-      " -DNO_SDL_GLEXT"
-    ]
-  );
+  env.NIX_CFLAGS_COMPILE = toString [
+    # gcc-12 and above generate many benign warnings
+    "-Wno-error"
+    "-std=gnu17"
+    # Avoid GL_GLEXT_VERSION double definition
+    "-DNO_SDL_GLEXT"
+  ];
 
   # To avoid problems finding SDL_types.h.
   configureFlags = [ "CFLAGS=-I${lib.getDev SDL}/include/SDL" ];