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/tools/ronn/Gemfile

@@ -0,0 +1,3 @@
+source "https://rubygems.org"
+
+gem "ronn-ng"

pkgs/development/tools/ronn/Gemfile.lock

@@ -0,0 +1,25 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    kramdown (2.3.2)
+      rexml
+    mini_portile2 (2.8.0)
+    mustache (0.99.8)
+    nokogiri (1.13.4)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
+    racc (1.6.0)
+    rexml (3.2.5)
+    ronn-ng (0.9.1)
+      kramdown (~> 2.1)
+      mustache (~> 0.7, >= 0.7.0)
+      nokogiri (~> 1.9, >= 1.9.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  ronn-ng
+
+BUNDLED WITH
+   2.3.9

pkgs/development/tools/ronn/default.nix

@@ -0,0 +1,39 @@
+{ stdenv, lib, bundlerEnv, bundlerUpdateScript, makeWrapper, groff, callPackage }:
+
+stdenv.mkDerivation rec {
+  pname = "ronn";
+  version = env.gems.ronn-ng.version;
+
+  env = bundlerEnv {
+    name = "ronn-gems";
+    gemdir = ./.;
+  };
+
+  dontUnpack = true;
+
+  nativeBuildInputs = [
+    makeWrapper
+  ];
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out/bin
+    makeWrapper ${env}/bin/ronn $out/bin/ronn \
+      --set PATH ${groff}/bin
+
+    runHook postInstall
+  '';
+
+  passthru.updateScript = bundlerUpdateScript "ronn";
+
+  passthru.tests.reproducible-html-manpage = callPackage ./test-reproducible-html.nix { };
+
+  meta = with lib; {
+    description = "markdown-based tool for building manpages";
+    homepage = "https://github.com/apjanke/ronn-ng";
+    license = licenses.mit;
+    maintainers = with maintainers; [ zimbatm nicknovitski ];
+    platforms = env.ruby.meta.platforms;
+  };
+}

pkgs/development/tools/ronn/gemset.nix

@@ -0,0 +1,75 @@
+{
+  kramdown = {
+    dependencies = ["rexml"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0757lqaq593z8hzdv98nai73ag384dkk7jgj3mcq2r6ix7130ifb";
+      type = "gem";
+    };
+    version = "2.3.2";
+  };
+  mini_portile2 = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0rapl1sfmfi3bfr68da4ca16yhc0pp93vjwkj7y3rdqrzy3b41hy";
+      type = "gem";
+    };
+    version = "2.8.0";
+  };
+  mustache = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1g5hplm0k06vwxwqzwn1mq5bd02yp0h3rym4zwzw26aqi7drcsl2";
+      type = "gem";
+    };
+    version = "0.99.8";
+  };
+  nokogiri = {
+    dependencies = ["mini_portile2" "racc"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1g43ii497cwdqhfnaxfl500bq5yfc5hfv5df1lvf6wcjnd708ihd";
+      type = "gem";
+    };
+    version = "1.13.4";
+  };
+  racc = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0la56m0z26j3mfn1a9lf2l03qx1xifanndf9p3vx1azf6sqy7v9d";
+      type = "gem";
+    };
+    version = "1.6.0";
+  };
+  rexml = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "08ximcyfjy94pm1rhcx04ny1vx2sk0x4y185gzn86yfsbzwkng53";
+      type = "gem";
+    };
+    version = "3.2.5";
+  };
+  ronn-ng = {
+    dependencies = ["kramdown" "mustache" "nokogiri"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1slxfg57cabmh98fw507z4ka6lwq1pvbrqwppflxw6700pi8ykfh";
+      type = "gem";
+    };
+    version = "0.9.1";
+  };
+}

pkgs/development/tools/ronn/test-reproducible-html.nix

@@ -0,0 +1,30 @@
+{ runCommand
+, diffutils
+, ronn
+}:
+runCommand "ronn-test-reproducible-html" { } ''
+  set -euo pipefail
+
+  cat > aprog.1.ronn << EOF
+  aprog
+  =====
+
+  ## AUTHORS
+
+  Vincent Haupert <veehaitch@users.noreply.github.com>
+  EOF
+
+  # We have to repeat the manpage generation a few times to be confident
+  # it is in fact reproducible.
+  for i in {1..20}; do
+    ${ronn}/bin/ronn --html --pipe aprog.1.ronn > aprog.1.html-1
+    ${ronn}/bin/ronn --html --pipe aprog.1.ronn > aprog.1.html-2
+
+    ${diffutils}/bin/diff -q aprog.1.html-1 aprog.1.html-2 \
+      || (printf 'The HTML manpage is not reproducible (round %d)' "$i" && exit 1)
+  done
+
+  echo 'The HTML manpage appears reproducible'
+
+  mkdir $out
+''