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/misc/fontpreview/default.nix

@@ -0,0 +1,40 @@
+{ stdenv, lib, fetchFromGitHub, makeWrapper, xdotool, fzf, imagemagick, sxiv, getopt }:
+
+stdenv.mkDerivation rec {
+  pname = "fontpreview";
+  version = "1.0.6";
+
+  src = fetchFromGitHub {
+    owner = "sdushantha";
+    repo = pname;
+    rev = version;
+    sha256 = "0g3i2k6n2yhp88rrcf0hp6ils7836db7hx73hw9qnpcbmckz0i4w";
+  };
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  preInstall = "mkdir -p $out/bin";
+
+  installFlags = [ "PREFIX=$(out)" ];
+
+  postInstall = ''
+    wrapProgram $out/bin/fontpreview \
+      --prefix PATH : ${lib.makeBinPath [ xdotool fzf imagemagick sxiv getopt ]}
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/sdushantha/fontpreview";
+    description = "Highly customizable and minimal font previewer written in bash";
+    longDescription = ''
+      fontpreview is a commandline tool that lets you quickly search for fonts
+      that are installed on your machine and preview them. The fuzzy search
+      feature is provided by fzf and the preview is generated with imagemagick
+      and then displayed using sxiv. This tool is highly customizable, almost
+      all of the variables in this tool can be changed using the commandline
+      flags or you can configure them using environment variables.
+    '';
+    license = licenses.mit;
+    platforms = platforms.unix;
+    maintainers = [ maintainers.erictapen ];
+  };
+}