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/applications/science/logic/celf/default.nix

@@ -0,0 +1,36 @@
+{ lib, stdenv, fetchFromGitHub, smlnj }:
+
+stdenv.mkDerivation rec {
+  pname = "celf";
+  pversion = "2013-07-25";
+  name = "${pname}-${pversion}";
+
+  src = fetchFromGitHub {
+    owner  = "clf";
+    repo   = pname;
+    rev    = "d61d95900ab316468ae850fa34a2fe9488bc5b59";
+    sha256 = "0slrwcxglp0sdbp6wr65cdkl5wcap2i0fqxbwqfi1q3cpb6ph6hq";
+  };
+
+  buildInputs = [ smlnj ];
+
+  # (can also build with MLton)
+  buildPhase = ''
+    export SMLNJ_HOME=${smlnj}
+    sml < main-export.sml
+  '';
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp .heap* $out/bin/
+    ./.mkexec ${smlnj}/bin/sml $out/bin celf
+  '';
+
+  meta = with lib; {
+    description = "Linear logic programming system";
+    homepage = "https://github.com/clf/celf";
+    license = licenses.gpl3;
+    maintainers = with maintainers; [ bcdarwin ];
+    platforms = platforms.unix;
+  };
+}