uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/python-modules/distutils-cfg/default.nix

@@ -0,0 +1,32 @@
+# global distutils configuration, see http://docs.python.org/2/install/index.html#distutils-configuration-files
+
+{ stdenv, python, writeText, extraCfg ? "", overrideCfg ? "" }:
+
+
+let
+  distutilsCfg = writeText "distutils.cfg" (
+  if overrideCfg != "" then overrideCfg else ''
+    [easy_install]
+
+    # don't allow network connections during build to ensure purity
+    allow-hosts = None
+
+    # make sure we always unzip installed packages otherwise setup hooks won't work
+    zip_ok = 0
+
+    ${extraCfg}
+  '');
+in stdenv.mkDerivation {
+  name = "${python.libPrefix}-distutils.cfg";
+
+  buildInputs = [ python ];
+
+  dontUnpack = true;
+
+  installPhase = ''
+    dest="$out/lib/${python.libPrefix}/site-packages/distutils"
+    mkdir -p $dest
+    ln -s ${python}/lib/${python.libPrefix}/distutils/* $dest
+    ln -s ${distutilsCfg} $dest/distutils.cfg
+  '';
+}