From 92ec26ce8d59d6856fb4f5ee4d1b74c654ca6eda Mon Sep 17 00:00:00 2001
From: Astro <astro@spaceboyz.net>
Date: Sun, 19 Nov 2023 01:33:38 +0100
Subject: [PATCH] cvs: fix CFLAGS only on darwin

Fixes build for pkgsCross.x86_64-netbsd.netbsd.sys
---
 pkgs/applications/version-management/cvs/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/applications/version-management/cvs/default.nix b/pkgs/applications/version-management/cvs/default.nix
index 4ee553c6c4be..20a38f9f8e8c 100644
--- a/pkgs/applications/version-management/cvs/default.nix
+++ b/pkgs/applications/version-management/cvs/default.nix
@@ -40,7 +40,7 @@ stdenv.mkDerivation rec {
     "AR=${stdenv.cc.targetPrefix}ar"
   ];
 
-  env = lib.optionalAttrs stdenv.cc.isClang {
+  env = lib.optionalAttrs (stdenv.isDarwin && stdenv.cc.isClang) {
     NIX_CFLAGS_COMPILE = "-Wno-implicit-function-declaration";
   };