From 7da64610db4aa225d770f2d559ab09abc45402e2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Charlotte=20=F0=9F=A6=9D=20Dele=C5=84kec?= <lotte@chir.rs>
Date: Wed, 31 Dec 2025 15:49:36 +0100
Subject: [PATCH] butler: unbreak on gcc 15+
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Some of the vendored code doesn’t compile in gnu23 mode

- See: #475479
---
 pkgs/by-name/bu/butler/package.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/by-name/bu/butler/package.nix b/pkgs/by-name/bu/butler/package.nix
index 53a2886aca52..946c59b51749 100644
--- a/pkgs/by-name/bu/butler/package.nix
+++ b/pkgs/by-name/bu/butler/package.nix
@@ -32,6 +32,9 @@ buildGoModule rec {
 
   vendorHash = "sha256-A6u7bKI7eoptkjBuXoQlLYHkEVtrl8aNnBb65k1bFno=";
 
+  # Needed due to vendored dependencies breaking in gnu23 mode.
+  env.NIX_CFLAGS_COMPILE = "-std=gnu17";
+
   meta = {
     description = "Command-line itch.io helper";
     changelog = "https://github.com/itchio/butler/releases/tag/v${version}/CHANGELOG.md";