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/jxrlib/default.nix

@@ -0,0 +1,38 @@
+{ lib, stdenv, fetchFromGitHub, python3, fixDarwinDylibNames }:
+
+stdenv.mkDerivation rec {
+  pname = "jxrlib";
+  version = "1.1";
+
+  # Use the source from a fork on github because CodePlex does not
+  # deliver an easily downloadable tarball.
+  src = fetchFromGitHub {
+    owner = "4creators";
+    repo = pname;
+    rev = "f7521879862b9085318e814c6157490dd9dbbdb4";
+    sha256 = "0rk3hbh00nw0wgbfbqk1szrlfg3yq7w6ar16napww3nrlm9cj65w";
+  };
+
+  postPatch = ''
+    substituteInPlace Makefile \
+      --replace "cc" "$CC"
+  '' + lib.optionalString stdenv.isDarwin ''
+    substituteInPlace Makefile \
+      --replace '-shared' '-dynamiclib -undefined dynamic_lookup' \
+      --replace '.so' '.dylib'
+  '';
+
+  nativeBuildInputs = [ python3 ] ++ lib.optional stdenv.isDarwin fixDarwinDylibNames;
+
+  strictDeps = true;
+
+  makeFlags = [ "DIR_INSTALL=$(out)" "SHARED=1" ];
+
+  meta = with lib; {
+    description = "Implementation of the JPEG XR image codec standard";
+    homepage = "https://jxrlib.codeplex.com";
+    license = licenses.bsd2;
+    platforms = platforms.unix;
+    maintainers = with maintainers; [ romildo ];
+  };
+}