Merge branch 'origin/master' into staging.

Conflicts:
	pkgs/development/libraries/ffmpeg/2.x.nix
	pkgs/development/libraries/serf/default.nix

lib/licenses.nix

@@ -194,6 +194,8 @@ rec {
     fullName = "Lucent Public License v1.02";
   };
 
+  # spdx.org does not (yet) differentiate between the X11 and Expat versions
+  # for details see http://en.wikipedia.org/wiki/MIT_License#Various_versions
   mit = spdx {
     shortName = "MIT";
     fullName = "MIT License";

lib/maintainers.nix

@@ -34,6 +34,7 @@
   cfouche = "Chaddaï Fouché <chaddai.fouche@gmail.com>";
   chaoflow = "Florian Friesdorf <flo@chaoflow.net>";
   coconnor = "Corey O'Connor <coreyoconnor@gmail.com>";
+  copumpkin = "Dan Peebles <pumpkingod@gmail.com>";
   coroa = "Jonas Hörsch <jonas@chaoflow.net>";
   cstrahan = "Charles Strahan <charles.c.strahan@gmail.com>";
   DamienCassou = "Damien Cassou <damien.cassou@gmail.com>";
@@ -47,6 +48,7 @@
   flosse = "Markus Kohlhase <mail@markus-kohlhase.de>";
   funfunctor = "Edward O'Callaghan <eocallaghan@alterapraxis.com>";
   fuuzetsu = "Mateusz Kowalczyk <fuuzetsu@fuuzetsu.co.uk>";
+  gal_bolle = "Florent Becker <florent.becker@ens-lyon.org>";
   garbas = "Rok Garbas <rok@garbas.si>";
   goibhniu = "Cillian de Róiste <cillian.deroiste@gmail.com>";
   guibert = "David Guibert <david.guibert@gmail.com>";

lib/modules.nix

@@ -277,13 +277,14 @@ rec {
   fixupOptionType = loc: opt:
     let
       options' = opt.options or
-        (throw "Option `${showOption loc'}' has type optionSet but has no option attribute.");
+        (throw "Option `${showOption loc'}' has type optionSet but has no option attribute, in ${showFiles opt.declarations}.");
       coerce = x:
         if isFunction x then x
         else { config, ... }: { options = x; };
       options = map coerce (flatten options');
       f = tp:
-        if tp.name == "option set" then types.submodule options
+        if tp.name == "option set" || tp.name == "submodule" then
+          throw "The option ${showOption loc} uses submodules without a wrapping type, in ${showFiles opt.declarations}."
         else if tp.name == "attribute set of option sets" then types.attrsOf (types.submodule options)
         else if tp.name == "list or attribute set of option sets" then types.loaOf (types.submodule options)
         else if tp.name == "list of option sets" then types.listOf (types.submodule options)