accountsservice: add nixbld* to blacklist

pkgs/development/libraries/accountsservice/Add-nixbld-to-user-blacklist.patch

@@ -0,0 +1,27 @@
+From e069102365a9ff03822667f435e662f938e8d768 Mon Sep 17 00:00:00 2001
+From: Alexander Ried <ried@mytum.de>
+Date: Wed, 1 Jun 2016 12:49:48 +0200
+Subject: [PATCH] Add nixbld* to user blacklist
+
+---
+ src/user-classify.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/src/user-classify.c b/src/user-classify.c
+index 69e6809..0e152b6 100644
+--- a/src/user-classify.c
++++ b/src/user-classify.c
+@@ -75,6 +75,10 @@ user_classify_is_blacklisted (const char *username)
+                 return TRUE;
+         }
+ 
++        if (g_str_has_prefix (username, "nixbld")) {
++                return TRUE;
++        }
++
+         return FALSE;
+ }
+ 
+-- 
+2.7.4
+

pkgs/development/libraries/accountsservice/default.nix

@@ -20,7 +20,10 @@ stdenv.mkDerivation rec {
     substituteInPlace src/user.c --replace '"/usr/sbin/' '"/run/current-system/sw/sbin/' --replace '"/usr/bin/' '"/run/current-system/sw/bin' --replace '"/bin/cat"' '"/run/current-system/sw/bin/cat"'
   '';
 
-  patches = [ ./no-create-dirs.patch ];
+  patches = [
+    ./no-create-dirs.patch
+    ./Add-nixbld-to-user-blacklist.patch
+  ];
 
   preFixup = ''
     wrapProgram "$out/libexec/accounts-daemon" \