From 415c07aae9640de0fb8b5961d4719250166e79a4 Mon Sep 17 00:00:00 2001
From: Stefan Frijters <sfrijters@gmail.com>
Date: Sun, 15 Feb 2026 20:39:51 +0100
Subject: [PATCH] bird3: move CPP into env for structuredAttrs

---
 pkgs/by-name/bi/bird3/package.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/by-name/bi/bird3/package.nix b/pkgs/by-name/bi/bird3/package.nix
index 0177350e1fc3..6b4b299b77e9 100644
--- a/pkgs/by-name/bi/bird3/package.nix
+++ b/pkgs/by-name/bi/bird3/package.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation (finalAttrs: {
     ./dont-create-sysconfdir-2.patch
   ];
 
-  CPP = "${stdenv.cc.targetPrefix}cpp -E";
+  env.CPP = "${stdenv.cc.targetPrefix}cpp -E";
 
   configureFlags = [
     "--localstatedir=/var"