From 58e4f7d0cffb675d3c2026efa936d33d86d7ee2a Mon Sep 17 00:00:00 2001
From: Daiderd Jordan <daiderd@gmail.com>
Date: Mon, 19 Dec 2016 21:09:10 +0100
Subject: [PATCH] use nixpkgsVersion as default system.darwinLabel

---
 modules/system/default.nix | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/modules/system/default.nix b/modules/system/default.nix
index 0e659bb4..8b4a6994 100644
--- a/modules/system/default.nix
+++ b/modules/system/default.nix
@@ -37,9 +37,9 @@ in
       '';
     };
 
-    system.nixdarwinLabel = mkOption {
+    system.darwinLabel = mkOption {
       type = types.str;
-      default = "16.09";
+      default = pkgs.lib.nixpkgsVersion;
     };
 
   };
@@ -47,12 +47,12 @@ in
   config = {
 
     system.build.toplevel = stdenvNoCC.mkDerivation {
-      name = "nixdarwin-system-${cfg.nixdarwinLabel}";
+      name = "darwin-system-${cfg.darwinLabel}";
       preferLocalBuild = true;
 
       activationScript = cfg.activationScripts.script.text;
       activationUserScript = cfg.activationScripts.userScript.text;
-      inherit (cfg) nixdarwinLabel;
+      inherit (cfg) darwinLabel;
 
       buildCommand = ''
         mkdir $out
@@ -77,7 +77,7 @@ in
 
         echo -n "$systemConfig" > $out/systemConfig
 
-        echo -n "$nixdarwinLabel" > $out/nixdarwin-version
+        echo -n "$darwinLabel" > $out/darwin-version
         echo -n "$system" > $out/system
       '';
     };