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/tools/video/mjpegtools/default.nix

@@ -0,0 +1,42 @@
+{ stdenv, lib, fetchurl, gtk2, libdv, libjpeg, libpng, libX11, pkg-config, SDL, SDL_gfx
+, withMinimal ? true
+}:
+
+# TODO:
+# - make dependencies optional
+# - libpng-apng as alternative to libpng?
+# - libXxf86dga support? checking for XF86DGAQueryExtension in -lXxf86dga... no
+
+stdenv.mkDerivation rec {
+  pname = "mjpegtools";
+  version = "2.2.1";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/mjpeg/mjpegtools-${version}.tar.gz";
+    sha256 = "sha256-sYBTbX2ZYLBeACOhl7ANyxAJKaSaq3HRnVX0obIQ9Jo=";
+  };
+
+  hardeningDisable = [ "format" ];
+
+  nativeBuildInputs = [ pkg-config ];
+  buildInputs = [ libdv libjpeg libpng ]
+              ++ lib.optionals (!withMinimal) [ gtk2 libX11 SDL SDL_gfx ];
+
+  NIX_CFLAGS_COMPILE = lib.optionalString (!withMinimal) "-I${lib.getDev SDL}/include/SDL";
+
+  postPatch = ''
+    sed -i -e '/ARCHFLAGS=/s:=.*:=:' configure
+  '';
+
+  enableParallelBuilding = true;
+
+  outputs = [ "out" "lib" ];
+
+  meta = with lib; {
+    description = "A suite of programs for processing MPEG or MJPEG video";
+    homepage = "http://mjpeg.sourceforge.net/";
+    license = licenses.gpl2Plus;
+    platforms = platforms.unix;
+    maintainers = with maintainers; [ abbradar ];
+  };
+}