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/tools/graphics/yafaray-core/default.nix

@@ -0,0 +1,39 @@
+{ lib, stdenv, fetchFromGitHub, cmake, pkg-config, opencv, zlib
+, libxml2, freetype, libjpeg, libtiff, swig, openexr
+, ilmbase, boost165
+, withPython ? true, python3
+}:
+
+stdenv.mkDerivation rec {
+
+    pname = "yafaray-core";
+    version = "3.5.1";
+
+    src = fetchFromGitHub {
+      owner  = "YafaRay";
+      repo   = "Core";
+      rev    = "v${version}";
+      sha256 = "043ixf3h4ay2fahsw9lh0pha82f7ri04mlfhvn2pg251012jvhrx";
+    };
+
+    preConfigure = ''
+      NIX_CFLAGS_COMPILE+=" -isystem ${ilmbase.dev}/include/OpenEXR"
+    '';
+
+    nativeBuildInputs = [ cmake pkg-config ];
+    buildInputs = [
+      boost165 opencv zlib libxml2 freetype libjpeg libtiff
+      swig openexr ilmbase
+    ] ++ lib.optional withPython python3;
+
+    meta = with lib; {
+      description = "A free, open source raytracer";
+      homepage = "http://www.yafaray.org";
+      maintainers = with maintainers; [ hodapp ];
+      license = licenses.lgpl21;
+      platforms = [ "x86_64-linux" ];
+    };
+  }
+
+# TODO: Add optional Ruby support
+# TODO: Add Qt support? (CMake looks for it, but what for?)