From 71c906fbfa77b760c32b65a36a84c6c242cef002 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20=C4=8Cun=C3=A1t?= <v@cunat.cz>
Date: Sat, 23 Dec 2023 22:09:12 +0100
Subject: [PATCH] python311Packages.lxml: avoid rebuild on gcc platforms

It's a bit impractical that our env parameter does
not have this property (with empty strings).
---
 pkgs/development/python-modules/lxml/default.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/lxml/default.nix b/pkgs/development/python-modules/lxml/default.nix
index 093ec343a6db..fae582f17072 100644
--- a/pkgs/development/python-modules/lxml/default.nix
+++ b/pkgs/development/python-modules/lxml/default.nix
@@ -22,7 +22,9 @@ buildPythonPackage rec {
   nativeBuildInputs = [ libxml2.dev libxslt.dev cython ] ++ lib.optionals stdenv.isDarwin [ xcodebuild ];
   buildInputs = [ libxml2 libxslt zlib ];
 
-  env.NIX_CFLAGS_COMPILE = lib.optionalString stdenv.cc.isClang "-Wno-error=incompatible-function-pointer-types";
+  env = lib.optionalAttrs stdenv.cc.isClang {
+    NIX_CFLAGS_COMPILE = "-Wno-error=incompatible-function-pointer-types";
+  };
 
   # tests are meant to be ran "in-place" in the same directory as src
   doCheck = false;