From 3ba909eb2dd3ddd893604f83048fa76cc2e47e74 Mon Sep 17 00:00:00 2001
From: Daiderd Jordan <daiderd@gmail.com>
Date: Sat, 4 May 2019 21:43:39 +0200
Subject: [PATCH] version: add default darwinRevision

There's no channel for darwin so this can be unavailable if a tarball or
shallow clone is used.
---
 modules/system/version.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/modules/system/version.nix b/modules/system/version.nix
index 190b293c..abddf808 100644
--- a/modules/system/version.nix
+++ b/modules/system/version.nix
@@ -62,6 +62,7 @@ in
     system.darwinRevision = mkOption {
       internal = true;
       type = types.str;
+      default = "master";
       description = "The darwin git revision from which this configuration was built.";
     };