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/taskopen/default.nix

@@ -0,0 +1,41 @@
+{ lib, stdenv, fetchFromGitHub, makeWrapper, which, perl, perlPackages }:
+
+stdenv.mkDerivation rec {
+  pname = "taskopen";
+  version = "1.1.5";
+
+  src = fetchFromGitHub {
+    owner = "ValiValpas";
+    repo = "taskopen";
+    rev = "v${version}";
+    sha256 = "sha256-/xf7Ph2KKiZ5lgLKk95nCgw/z9wIBmuWf3QGaNebgHg=";
+  };
+
+  postPatch = ''
+    # We don't need a DESTDIR and an empty string results in an absolute path
+    # (due to the trailing slash) which breaks the build.
+    sed 's|$(DESTDIR)/||' -i Makefile
+  '';
+
+  nativeBuildInputs = [ makeWrapper ];
+  buildInputs = [ which ]
+    ++ (with perlPackages; [ JSON perl ]);
+
+  installPhase = ''
+    make PREFIX=$out
+    make PREFIX=$out install
+  '';
+
+  postFixup = ''
+    wrapProgram $out/bin/taskopen \
+         --set PERL5LIB "$PERL5LIB"
+  '';
+
+  meta = with lib; {
+    description = "Script for taking notes and open urls with taskwarrior";
+    homepage = "https://github.com/ValiValpas/taskopen";
+    platforms = platforms.linux;
+    license = licenses.free;
+    maintainers = [ maintainers.winpat ];
+  };
+}