From ace0ec3b18f4aa88e0b3a905736a1fde65b62821 Mon Sep 17 00:00:00 2001
From: "Adam C. Stephens" <adam@valkor.net>
Date: Thu, 1 Jan 2026 17:53:51 -0500
Subject: [PATCH] river-bnf: fix build with gcc 15

---
 pkgs/by-name/ri/river-bnf/package.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/by-name/ri/river-bnf/package.nix b/pkgs/by-name/ri/river-bnf/package.nix
index 717c4d180276..a7316306bb85 100644
--- a/pkgs/by-name/ri/river-bnf/package.nix
+++ b/pkgs/by-name/ri/river-bnf/package.nix
@@ -18,6 +18,9 @@ stdenv.mkDerivation {
     hash = "sha256-rm9Nt3WLgq9QOXzrkYBGp45EALNYFTQGInxfYIN0XcU=";
   };
 
+  # Fix build with gcc 15
+  env.NIX_CFLAGS_COMPILE = "-std=gnu17";
+
   nativeBuildInputs = [
     wayland-scanner
   ];