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authorEelco Dolstra <eelco.dolstra@logicblox.com>2013-03-07 19:42:01 +0100
committerEelco Dolstra <eelco.dolstra@logicblox.com>2013-03-07 19:42:01 +0100
commit262c21ed464a2593b54ec274a3b84083c0795f2d (patch)
tree5d941fab330819560eda9cbee21b65eed3c23fb8 /pkgs/stdenv
parentf5052a8679870819472d911a9ad385df3faec1ec (diff)
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Enable __ignoreNulls globally
Diffstat (limited to 'pkgs/stdenv')
-rw-r--r--pkgs/stdenv/generic/default.nix8
1 files changed, 8 insertions, 0 deletions
diff --git a/pkgs/stdenv/generic/default.nix b/pkgs/stdenv/generic/default.nix
index 26f410cee117..fd7b3218e347 100644
--- a/pkgs/stdenv/generic/default.nix
+++ b/pkgs/stdenv/generic/default.nix
@@ -6,6 +6,12 @@
   fetchurlBoot
 }:
 
+if ! builtins ? langVersion then
+
+  abort "This version of Nixpkgs requires Nix >= 1.2, please upgrade!"
+
+else
+
 let
 
   lib = import ../../lib;
@@ -30,6 +36,8 @@ let
 
         propagatedUserEnvPkgs = [gcc] ++
           lib.filter lib.isDerivation initialPath;
+
+        __ignoreNulls = true;
       }
 
       // rec {