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/compilers/elm/packages/elmi-to-json.nix

@@ -0,0 +1,27 @@
+{ mkDerivation, aeson, base, binary, bytestring, containers
+, directory, fetchgit, filepath, ghc-prim, hpack
+, optparse-applicative, lib, text, unliftio
+, unordered-containers
+}:
+mkDerivation {
+  pname = "elmi-to-json";
+  version = "1.3.0";
+  src = fetchgit {
+    url = "https://github.com/stoeffel/elmi-to-json";
+    sha256 = "11j56vcyhijkwi9hzggkwwmxlhzhgm67ab2m7kxkhcbbqgpasa8n";
+    rev = "ae40d1aa1e3d6878f2af514e611d44890e7abc1e";
+    fetchSubmodules = true;
+  };
+  isLibrary = true;
+  isExecutable = true;
+  libraryHaskellDepends = [
+    aeson base binary bytestring containers directory filepath ghc-prim
+    optparse-applicative text unliftio unordered-containers
+  ];
+  libraryToolDepends = [ hpack ];
+  executableHaskellDepends = [ base ];
+  testHaskellDepends = [ base ];
+  prePatch = "hpack";
+  homepage = "https://github.com/stoeffel/elmi-to-json#readme";
+  license = lib.licenses.bsd3;
+}