From c9d1090fc0e0a9fa76c7dc95fb4f4a6709664355 Mon Sep 17 00:00:00 2001
From: Harinn <prinn.dev@pm.me>
Date: Wed, 20 May 2026 18:14:20 +0700
Subject: [PATCH] emmy-lua-code-style: fix build with gcc 15

---
 pkgs/by-name/em/emmy-lua-code-style/package.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/by-name/em/emmy-lua-code-style/package.nix b/pkgs/by-name/em/emmy-lua-code-style/package.nix
index 0df147419dc4..7cf1f72aafd1 100644
--- a/pkgs/by-name/em/emmy-lua-code-style/package.nix
+++ b/pkgs/by-name/em/emmy-lua-code-style/package.nix
@@ -19,6 +19,9 @@ stdenv.mkDerivation (finalAttrs: {
 
   nativeBuildInputs = [ cmake ];
 
+  # Vendored mimalloc-2.0.9 uses ATOMIC_VAR_INIT, removed in C23.
+  env.NIX_CFLAGS_COMPILE = "-std=gnu17";
+
   passthru.updateScript = nix-update-script { };
 
   meta = {