From a97a00fcebe2e4186642282b289bcee87a1f0aaf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20=C4=8Cun=C3=A1t?= <v@cunat.cz>
Date: Mon, 25 Apr 2022 07:45:16 +0200
Subject: [PATCH] nginx: fixup build with other than gcc11

This parameter isn't known by clang or older gcc,
and that breaks compilation there:
https://hydra.nixos.org/build/174714339
https://hydra.nixos.org/build/174713306

Flag was added in commit 6508304a in PR #170102.
---
 pkgs/servers/http/nginx/generic.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/servers/http/nginx/generic.nix b/pkgs/servers/http/nginx/generic.nix
index 3151f3a2bf9e..f6b91d77511e 100644
--- a/pkgs/servers/http/nginx/generic.nix
+++ b/pkgs/servers/http/nginx/generic.nix
@@ -107,6 +107,7 @@ stdenv.mkDerivation {
   NIX_CFLAGS_COMPILE = toString ([
     "-I${libxml2.dev}/include/libxml2"
     "-Wno-error=implicit-fallthrough"
+  ] ++ optionals (stdenv.cc.isGNU && lib.versionAtLeast stdenv.cc.version "11") [
     # fix build vts module on gcc11
     "-Wno-error=stringop-overread"
   ] ++ optional stdenv.isDarwin "-Wno-error=deprecated-declarations");