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/clipp/clipp.pc

@@ -0,0 +1,9 @@
+prefix=@out@
+includedir=${prefix}/include
+
+Name: @pname@
+Description: Easy to use, powerful and expressive command line argument \
+handling for C++11/14/17
+URL: https://github.com/muellan/clipp
+Version: @version@
+Cflags: -I${includedir}

pkgs/development/libraries/clipp/default.nix

@@ -0,0 +1,30 @@
+{ lib, stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  pname = "clipp";
+  version = "1.2.3";
+
+  src = fetchFromGitHub {
+    owner = "muellan";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0rq80ba2krwzvcg4r2g1al88453c7lz6ziri2s1ygv8inp9r775s";
+  };
+
+  installPhase = ''
+    mkdir -p $out/share/pkgconfig
+    cp -r include $out/
+    substitute ${./clipp.pc} $out/share/pkgconfig/clipp.pc \
+      --subst-var out \
+      --subst-var pname \
+      --subst-var version
+  '';
+
+  meta = with lib; {
+    description = "Easy to use, powerful and expressive command line argument handling for C++11/14/17";
+    homepage = "https://github.com/muellan/clipp";
+    license = licenses.mit;
+    maintainers = with maintainers; [ xbreak ];
+    platforms = with platforms; all;
+  };
+}