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/libraries/ctpp2/default.nix

@@ -0,0 +1,28 @@
+{ lib, stdenv, fetchurl, cmake }:
+
+stdenv.mkDerivation rec {
+  pname = "ctpp2";
+  version = "2.8.3";
+
+  src = fetchurl {
+    url = "http://ctpp.havoc.ru/download/${pname}-${version}.tar.gz";
+    sha256 = "1z22zfw9lb86z4hcan9hlvji49c9b7vznh7gjm95gnvsh43zsgx8";
+  };
+
+  nativeBuildInputs = [ cmake ];
+
+  patchPhase = ''
+    # include <unistd.h> to fix undefined getcwd
+    sed -ie 's/<stdlib.h>/<stdlib.h>\n#include <unistd.h>/' src/CTPP2FileSourceLoader.cpp
+  '';
+
+  doCheck = false; # fails
+
+  meta = with lib; {
+    description = "A high performance templating engine";
+    homepage = "http://ctpp.havoc.ru";
+    maintainers = [ maintainers.robbinch ];
+    platforms = platforms.linux;
+    license = licenses.bsd2;
+  };
+}