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/powerline/default.nix

@@ -0,0 +1,55 @@
+{ lib
+, fetchFromGitHub
+, buildPythonPackage
+, socat
+, psutil
+, hglib
+, pygit2
+, pyuv
+, i3ipc
+, stdenv
+}:
+
+# TODO: bzr support is missing because nixpkgs switched to `breezy`
+
+buildPythonPackage rec {
+  version  = "2.8.2";
+  pname = "powerline";
+
+  src = fetchFromGitHub {
+    owner = pname;
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-6V8ozl5KJQvytfflBmKJlIZQ5m3hkpCzMBtWZ2SzcQ0=";
+  };
+
+  propagatedBuildInputs = [
+    socat
+    psutil
+    hglib
+    pygit2
+    pyuv
+  ] ++ lib.optionals (!stdenv.isDarwin) [ i3ipc ];
+
+  # tests are travis-specific
+  doCheck = false;
+
+  postInstall = ''
+    install -dm755 "$out/share/fonts/OTF/"
+    install -dm755 "$out/etc/fonts/conf.d"
+    install -m644 "font/PowerlineSymbols.otf" "$out/share/fonts/OTF/PowerlineSymbols.otf"
+    install -m644 "font/10-powerline-symbols.conf" "$out/etc/fonts/conf.d/10-powerline-symbols.conf"
+
+    install -dm755 "$out/share/fish/vendor_functions.d"
+    install -m644 "powerline/bindings/fish/powerline-setup.fish" "$out/share/fish/vendor_functions.d/powerline-setup.fish"
+
+    cp -ra powerline/bindings/{bash,shell,tcsh,tmux,vim,zsh} $out/share/
+    rm $out/share/*/*.py
+  '';
+
+  meta = {
+    homepage    = "https://github.com/powerline/powerline";
+    description = "The ultimate statusline/prompt utility";
+    license     = lib.licenses.mit;
+  };
+}