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/uthash/default.nix

@@ -0,0 +1,29 @@
+{ lib, stdenv, fetchFromGitHub, perl }:
+
+stdenv.mkDerivation rec {
+  pname = "uthash";
+  version = "2.3.0";
+
+  src = fetchFromGitHub {
+    owner = "troydhanson";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-F0M5ENT3bMn3dD16Oaq9mBFYOWzVliVWupAIrLc2nkQ=";
+  };
+
+  doCheck = true;
+  checkInputs = [ perl ];
+  checkTarget = "all";
+  preCheck = "cd tests";
+
+  installPhase = ''
+    install -Dm644 $src/include/*.h -t $out/include
+  '';
+
+  meta = with lib; {
+    description = "A hash table for C structures";
+    homepage    = "http://troydhanson.github.io/uthash";
+    license     = licenses.bsd2; # it's one-clause, actually, as it's source-only
+    platforms   = platforms.all;
+  };
+}