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/development/libraries/sharness/default.nix

@@ -0,0 +1,51 @@
+{ stdenv
+, lib
+, fetchFromGitHub
+, fetchurl
+, perl
+, perlPackages
+, sharnessExtensions ? {} }:
+
+stdenv.mkDerivation rec {
+  pname = "sharness";
+  version = "1.1.0-dev";
+
+  src = fetchFromGitHub {
+    owner = "chriscool";
+    repo = pname;
+    rev = "3f238a740156dd2082f4bd60ced205e05894d367"; # 2020-12-09
+    sha256 = "FCYskpIqkrpNaWCi2LkhEkiow4/rXLe+lfEWNUthLUg=";
+  };
+
+  # Used for testing
+  nativeBuildInputs = [ perl perlPackages.IOTty ];
+
+  outputs = [ "out" "doc" ];
+
+  makeFlags = [ "prefix=$(out)" ];
+
+  extensions = lib.mapAttrsToList (k: v: "${k}.sh ${v}") sharnessExtensions;
+
+  postInstall = lib.optionalString (sharnessExtensions != {}) ''
+    extDir=$out/share/sharness/sharness.d
+    mkdir -p "$extDir"
+    linkExtensions() {
+      set -- $extensions
+      while [ $# -ge 2 ]; do
+        ln -s "$2" "$extDir/$1"
+        shift 2
+      done
+    }
+    linkExtensions
+  '';
+
+  doCheck = true;
+
+  meta = with lib; {
+    description = "Portable shell library to write, run and analyze automated tests adhering to Test Anything Protocol (TAP)";
+    homepage = "https://github.com/chriscool/sharness";
+    license = licenses.gpl2Only;
+    maintainers = [ maintainers.spacefrogg ];
+    platforms = platforms.unix;
+  };
+}