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/whois/default.nix

@@ -0,0 +1,42 @@
+{ lib, stdenv, fetchFromGitHub, perl, gettext, pkg-config, libidn2, libiconv }:
+
+stdenv.mkDerivation rec {
+  version = "5.5.12";
+  pname = "whois";
+
+  src = fetchFromGitHub {
+    owner = "rfc1036";
+    repo = "whois";
+    rev = "v${version}";
+    sha256 = "sha256-UJy71VKEKPYfRXZB2lJiy6Ua6BkGW9Uz0zXciZC4oJE=";
+  };
+
+  nativeBuildInputs = [ perl gettext pkg-config ];
+  buildInputs = [ libidn2 libiconv ];
+
+  preConfigure = ''
+    for i in Makefile po/Makefile; do
+      substituteInPlace $i --replace "prefix = /usr" "prefix = $out"
+    done
+  '';
+
+  makeFlags = [ "HAVE_ICONV=1" ];
+  buildFlags = [ "whois" ];
+
+  installTargets = [ "install-whois" ];
+
+  meta = with lib; {
+    description = "Intelligent WHOIS client from Debian";
+    longDescription = ''
+      This package provides a commandline client for the WHOIS (RFC 3912)
+      protocol, which queries online servers for information such as contact
+      details for domains and IP address assignments. It can intelligently
+      select the appropriate WHOIS server for most queries.
+    '';
+
+    homepage = "https://packages.qa.debian.org/w/whois.html";
+    license = licenses.gpl2;
+    maintainers = with maintainers; [ fpletz ];
+    platforms = platforms.unix;
+  };
+}