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/applications/misc/gsimplecal/default.nix

@@ -0,0 +1,44 @@
+{ lib, stdenv, fetchFromGitHub, automake, autoconf, pkg-config, gtk3 }:
+
+stdenv.mkDerivation rec {
+  pname = "gsimplecal";
+  version = "2.2";
+
+  src = fetchFromGitHub {
+    owner = "dmedvinsky";
+    repo = "gsimplecal";
+    rev = "v${version}";
+    sha256 = "sha256-r7OitN7WSY7vxpQCraLyokgUNgvaVFjE17ghBGgxzuM=";
+  };
+
+  postPatch = ''
+    sed -ie '/sys\/sysctl.h/d' src/Unique.cpp
+  '';
+
+  enableParallelBuilding = true;
+
+  nativeBuildInputs = [ pkg-config automake autoconf ];
+  buildInputs = [ gtk3 ];
+
+  preConfigure = "./autogen.sh";
+
+  meta = {
+    homepage = "http://dmedvinsky.github.io/gsimplecal/";
+    description = "Lightweight calendar application written in C++ using GTK";
+    longDescription = ''
+      gsimplecal was intentionally made for use with tint2 panel in the
+      openbox environment to be launched upon clock click, but of course it
+      will work without it. In fact, binding the gsimplecal to some hotkey in
+      you window manager will probably make you happy. The thing is that when
+      it is started it first shows up, when you run it again it closes the
+      running instance. In that way it is very easy to integrate anywhere. No
+      need to write some wrapper scripts or whatever.
+
+      Also, you can configure it to not only show the calendar, but also
+      display multiple clocks for different world time zones.
+    '';
+    license = lib.licenses.bsd3;
+    maintainers = [ lib.maintainers.romildo ];
+    platforms = lib.platforms.linux;
+  };
+}