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/networking/ghostunnel/default.nix

@@ -0,0 +1,42 @@
+{ stdenv
+, buildGoModule
+, fetchFromGitHub
+, lib
+, nixosTests
+}:
+
+buildGoModule rec {
+  pname = "ghostunnel";
+  version = "1.6.0";
+
+  src = fetchFromGitHub {
+    owner = "ghostunnel";
+    repo = "ghostunnel";
+    rev = "v${version}";
+    sha256 = "sha256-EE8gCm/gOp3lmCx1q4PahulipLoBZnEatNAVUXzHIVw=";
+  };
+
+  vendorSha256 = "sha256-XgmvqB1PCfL2gSDqwqauSixk8vlINHRmX6U0h9EXXdU=";
+
+  deleteVendor = true;
+
+  # The certstore directory isn't recognized as a subpackage, but is when moved
+  # into the vendor directory.
+  postUnpack = ''
+    mkdir -p $sourceRoot/vendor/ghostunnel
+    mv $sourceRoot/certstore $sourceRoot/vendor/ghostunnel/
+  '';
+
+  passthru.tests = {
+    nixos = nixosTests.ghostunnel;
+    podman = nixosTests.podman-tls-ghostunnel;
+  };
+
+  meta = with lib; {
+    broken = stdenv.isDarwin;
+    description = "A simple TLS proxy with mutual authentication support for securing non-TLS backend applications";
+    homepage = "https://github.com/ghostunnel/ghostunnel#readme";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ roberth ];
+  };
+}