From 82d0acaf371d1ea3f497afbe58854198bb3ce6dd Mon Sep 17 00:00:00 2001
From: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Date: Wed, 1 Jul 2015 12:36:55 +0300
Subject: [PATCH] kernel-config: Explicitly enable NAMESPACES

Namespace support is required by the `unshare` tool used in
`nixos-install`. It's enabled by the x86 defconfig, but not by
e.g. multi_v7_defconfig. So enable it here so that `nixos-install`
can work on ARM.
---
 pkgs/os-specific/linux/kernel/common-config.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/os-specific/linux/kernel/common-config.nix b/pkgs/os-specific/linux/kernel/common-config.nix
index cb7423f293a4..7063017b3a8c 100644
--- a/pkgs/os-specific/linux/kernel/common-config.nix
+++ b/pkgs/os-specific/linux/kernel/common-config.nix
@@ -338,6 +338,7 @@ with stdenv.lib;
   X86_MCE y
 
   # Linux containers.
+  NAMESPACES? y #  Required by 'unshare' used by 'nixos-install'
   RT_GROUP_SCHED? y
   CGROUP_DEVICE? y
   ${if versionAtLeast version "3.6" then ''