From 566c0f9568f22503b4b1988cb5a236e6526121f9 Mon Sep 17 00:00:00 2001
From: Dmitry Ivankov <boltzmannrain@gmail.com>
Date: Sun, 4 May 2025 21:56:52 +0200
Subject: [PATCH] gdl: suppress gcc14 warning

https://gitlab.gnome.org/Archive/gdl/-/issues/9

A patch is also listed there but not clear if it is accepted upstream
yet, disabling warning is probably safer.

`gdl` is dependency of `gpx-viewer` which gets fixed by this change,
and the app starts ok.

Failure log example
https://hydra.nixos.org/build/294736426/nixlog/2

ZHF: #403336
---
 pkgs/by-name/gd/gdl/package.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/by-name/gd/gdl/package.nix b/pkgs/by-name/gd/gdl/package.nix
index 69c8f5736820..7303307baa49 100644
--- a/pkgs/by-name/gd/gdl/package.nix
+++ b/pkgs/by-name/gd/gdl/package.nix
@@ -18,6 +18,11 @@ stdenv.mkDerivation rec {
     sha256 = "NkHU/WadHhgYrv88+f+3iH/Fw2eFC3jCjHdeukq2pVU=";
   };
 
+  env = lib.optionalAttrs stdenv.cc.isGNU {
+    # https://gitlab.gnome.org/Archive/gdl/-/issues/9
+    NIX_CFLAGS_COMPILE = "-Wno-error=incompatible-pointer-types";
+  };
+
   nativeBuildInputs = [
     pkg-config
     intltool