From 2dbca69a1f5bfd1212b6b1d1a8d83e4de482b9d1 Mon Sep 17 00:00:00 2001
From: Justin Chen <42143810+StarryReverie@users.noreply.github.com>
Date: Sat, 3 Jan 2026 11:49:38 +0800
Subject: [PATCH] newlisp: fix build with GCC 15

---
 pkgs/by-name/ne/newlisp/package.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/by-name/ne/newlisp/package.nix b/pkgs/by-name/ne/newlisp/package.nix
index a1d4f0682593..d6cda77945ba 100644
--- a/pkgs/by-name/ne/newlisp/package.nix
+++ b/pkgs/by-name/ne/newlisp/package.nix
@@ -20,6 +20,9 @@ stdenv.mkDerivation (finalAttrs: {
     readline
   ];
 
+  # Build fails with C standard newer than C17
+  env.NIX_CFLAGS_COMPILE = "-std=gnu17";
+
   configureScript = "./configure-alt";
 
   doCheck = true;