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/smlnj/bootstrap.nix

@@ -0,0 +1,49 @@
+# This derivation should be redundant, now that regular smlnj works on Darwin,
+# and is preserved only for pre-existing direct usage. New use cases should
+# just use the regular smlnj derivation.
+
+{ lib, stdenv, fetchurl, cpio, rsync, xar, makeWrapper }:
+
+stdenv.mkDerivation rec {
+  pname = "smlnj-bootstrap";
+
+  version = "110.91";
+
+  src = fetchurl {
+    url = "http://smlnj.cs.uchicago.edu/dist/working/${version}/smlnj-x86-${version}.pkg";
+    sha256 = "12jn50h5jz0ac1vzld2mb94p1dyc8h0mk0hip2wj5xqk1dbzwxl4";
+  };
+
+  nativeBuildInputs = [ makeWrapper ];
+  buildInputs = [ cpio rsync ];
+
+  unpackPhase = ''
+    ${xar}/bin/xar -xf $src
+    cd smlnj.pkg
+  '';
+
+  buildPhase = ''
+    cat Payload | gunzip -dc | cpio -i
+  '';
+
+  installPhase = ''
+    mkdir -p $out/bin
+    rsync -av bin/ $out/bin/
+
+    mkdir -p $out/lib
+    rsync -av lib/ $out/lib/
+  '';
+
+  postInstall = ''
+    wrapProgram "$out/bin/sml" --set "SMLNJ_HOME" "$out"
+  '';
+
+  meta = {
+    description = "Compiler for the Standard ML '97 programming language";
+    homepage    = "http://www.smlnj.org";
+    license     = lib.licenses.free;
+    platforms   = lib.platforms.darwin;
+    maintainers = [ lib.maintainers.jwiegley ];
+    mainProgram = "sml";
+  };
+}