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/data/documentation/nginx-doc/default.nix

@@ -0,0 +1,40 @@
+{ lib, stdenv, libxml2, libxslt, fetchhg }:
+
+# Upstream maintains documentation (sources of https://nginx.org) in separate
+# mercurial repository, which do not correspond to particular git commit, but at
+# least has "introduced in version X.Y" comments.
+#
+# In other words, documentation does not necessary matches capabilities of
+# $out/bin/nginx, but we have no better options.
+stdenv.mkDerivation {
+  pname = "nginx-doc-unstable";
+  version = "2022-05-05";
+  src = fetchhg {
+    url = "https://hg.nginx.org/nginx.org";
+    rev = "a3aee2697d4e";
+    sha256 = "029n4mnmjw94h01qalmjgf1c2h3h7wm798xv5knk3padxiy4m28b";
+  };
+  patches = [ ./exclude-google-analytics.patch ];
+  nativeBuildInputs = [ libxslt libxml2 ];
+
+  # Generated documentation is not local-friendly, since it assumes that link to directory
+  # is the same as link to index.html in that directory, which is not how browsers behave
+  # with local filesystem.
+  #
+  # TODO: patch all relative links that do not end with .html.
+
+  # /en subdirectory must exist, relative links expect it.
+  installPhase = ''
+    mkdir -p $out/share/doc/nginx
+    mv libxslt/en $out/share/doc/nginx
+  '';
+
+  meta = with lib; {
+    description = "A reverse proxy and lightweight webserver (documentation)";
+    homepage    = "https://nginx.org/";
+    license     = licenses.bsd2;
+    platforms   = platforms.all;
+    priority    = 6;
+    maintainers = with maintainers; [ kaction ];
+  };
+}