~/.nixpkgs -> ~/.config/nixpkgs

The former is still respected as a fallback for config.nix for
backwards compatibility (but not for overlays because they're a new
feature).

doc/configuration.xml

@@ -2,12 +2,12 @@
          xmlns:xlink="http://www.w3.org/1999/xlink"
          xml:id="chap-packageconfig">
 
-<title><filename>~/.nixpkgs/config.nix</filename>: global configuration</title>
+<title>Global configuration</title>
 
 <para>Nix packages can be configured to allow or deny certain options.</para>
 
 <para>To apply the configuration edit
-<filename>~/.nixpkgs/config.nix</filename> and set it like
+<filename>~/.config/nixpkgs/config.nix</filename> and set it like
 
 <programlisting>
 {
@@ -89,7 +89,7 @@ packages via <literal>packageOverrides</literal></title>
 
 <para>You can define a function called
 <varname>packageOverrides</varname> in your local
-<filename>~/.nixpkgs/config.nix</filename> to overide nix packages.  It
+<filename>~/.config/nixpkgs/config.nix</filename> to overide nix packages.  It
 must be a function that takes pkgs as an argument and return modified
 set of packages.
 

doc/functions.xml

@@ -119,7 +119,7 @@
       evaluation-per-function application incurs a performance penalty,
       which can become a problem if many overrides are used.
       It is only intended for ad-hoc customisation, such as in
-      <filename>~/.nixpkgs/config.nix</filename>.
+      <filename>~/.config/nixpkgs/config.nix</filename>.
     </para>
     </warning>
 

doc/languages-frameworks/haskell.md

@@ -195,7 +195,7 @@ its normal core packages:
         mtl-2.2.1
 
 This function allows users to define their own development environment by means
-of an override. After adding the following snippet to `~/.nixpkgs/config.nix`,
+of an override. After adding the following snippet to `~/.config/nixpkgs/config.nix`,
 
     {
       packageOverrides = super: let self = super.pkgs; in
@@ -522,7 +522,7 @@ file with `cabal2nix`:
     $ cd ~/src/foo && cabal2nix . >default.nix
     $ cd ~/src/bar && cabal2nix . >default.nix
 
-Then edit your `~/.nixpkgs/config.nix` file to register those builds in the
+Then edit your `~/.config/nixpkgs/config.nix` file to register those builds in the
 default Haskell package set:
 
       {
@@ -554,7 +554,7 @@ Every Haskell package set takes a function called `overrides` that you can use
 to manipulate the package as much as you please. One useful application of this
 feature is to replace the default `mkDerivation` function with one that enables
 library profiling for all packages. To accomplish that, add configure the
-following snippet in your `~/.nixpkgs/config.nix` file:
+following snippet in your `~/.config/nixpkgs/config.nix` file:
 
     {
       packageOverrides = super: let self = super.pkgs; in
@@ -583,7 +583,7 @@ The first step is to generate Nix build instructions with `cabal2nix`:
 
     $ cabal2nix cabal://ghc-events-0.4.3.0 >~/.nixpkgs/ghc-events-0.4.3.0.nix
 
-Then add the override in `~/.nixpkgs/config.nix`:
+Then add the override in `~/.config/nixpkgs/config.nix`:
 
     {
       packageOverrides = super: let self = super.pkgs; in

doc/package-notes.xml

@@ -278,7 +278,7 @@ packageOverrides = pkgs: {
 </screen>
 
     to your Nixpkgs configuration
-    (<filename>~/.nixpkgs/config.nix</filename>) and install it by
+    (<filename>~/.config/nixpkgs/config.nix</filename>) and install it by
     running <command>nix-env -f '&lt;nixpkgs&gt;' -iA
     myEclipse</command> and afterward run Eclipse as usual. It is
     possible to find out which plugins are available for installation