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/games/fltrator/default.nix

@@ -0,0 +1,45 @@
+{ lib, stdenv, fetchurl, unzip, fltk, which, libjpeg }:
+
+stdenv.mkDerivation rec {
+  pname = "fltrator";
+  version = "2.3";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/fltrator/fltrator-${version}-code.zip";
+    sha256 = "125aqq1sfrm0c9cm6gyylwdmc8xrb0rjf563xvw7q28sdbl6ayp7";
+  };
+
+  buildInputs = [ fltk libjpeg ];
+  nativeBuildInputs = [ unzip which ];
+
+  postPatch = ''
+    substituteInPlace src/fltrator.cxx\
+      --replace 'home += "fltrator/"' "home = \"$out/fltrator/\""
+    substituteInPlace src/fltrator-landscape.cxx\
+      --replace 'home += "fltrator/"' "home = \"$out/fltrator/\""
+    substituteInPlace rsc/fltrator.desktop \
+      --replace 'Exec=fltrator' "Exec=$out/bin/fltrator"
+  '';
+
+  dontAddPrefix = true;
+
+  makeFlags = [ "HOME=$(out)" "RSC_PATH=$(out)/fltrator"];
+
+  postInstall = ''
+    mkdir -p $out/share/applications
+    cp rsc/fltrator.desktop $out/share/applications
+    mkdir -p $out/share/icons/hicolor/128x128/apps/
+    cp rsc/fltrator-128.png $out/share/icons/hicolor/128x128/apps/fltrator2.png
+  '';
+
+  meta = with lib; {
+    description = "A simple retro style arcade side-scroller game";
+    longDescription = '' FLTrator is a simple retro style arcade side-scroller game in which you steer a spaceship through a landscape with hostile rockets and other obstacles.
+    It has ten different levels and a level editor to create new levels or modify the existing.''; # from https://libregamewiki.org/FLTrator
+    homepage = "http://fltrator.sourceforge.net/";
+    platforms = platforms.linux;
+    maintainers = [ maintainers.marius851000 ];
+    license = licenses.gpl3;
+  };
+
+}