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/servers/gemini/agate/default.nix

@@ -0,0 +1,40 @@
+{ lib, stdenv, nixosTests, fetchFromGitHub, rustPlatform, libiconv, Security }:
+
+rustPlatform.buildRustPackage rec {
+  pname = "agate";
+  version = "3.2.4";
+
+  src = fetchFromGitHub {
+    owner = "mbrubeck";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-NyHs/9kRBGqmh44MSRzYb7CSvEB0RlmL9l5QpGEwDhY=";
+  };
+  cargoSha256 = "sha256-V0MLXOLLmKnk4Iyhbu+EomsxOX6RLYHIsi/IwWiqmcg=";
+
+  buildInputs = lib.optionals stdenv.isDarwin [ libiconv Security ];
+
+  doInstallCheck = true;
+  installCheckPhase = ''
+    runHook preInstallCheck
+    $out/bin/agate --help
+    $out/bin/agate --version 2>&1 | grep "agate ${version}"
+    runHook postInstallCheck
+  '';
+
+  passthru.tests = { inherit (nixosTests) agate; };
+
+  meta = with lib; {
+    homepage = "https://github.com/mbrubeck/agate";
+    changelog = "https://github.com/mbrubeck/agate/blob/master/CHANGELOG.md";
+    description = "Very simple server for the Gemini hypertext protocol";
+    longDescription = ''
+      Agate is a server for the Gemini network protocol, built with the Rust
+      programming language. Agate has very few features, and can only serve
+      static files. It uses async I/O, and should be quite efficient even when
+      running on low-end hardware and serving many concurrent requests.
+    '';
+    license = with licenses; [ asl20 /* or */ mit ];
+    maintainers = with maintainers; [ jk ];
+  };
+}