anchor.diff:  { stdenv, lib, fetchurl, openssl, libtool, perl, libxml2
  -, enableSeccomp ? false, libseccomp ? null }:
  +, enableSeccomp ? false, libseccomp ? null, buildPackages
  +}:
   
   assert enableSeccomp -> libseccomp != null;
   
  
positive.code:     sha256 = "10iwkghl5g50b7wc17bsb9wa0dh2gd57bjlk6ynixhywz6dhx1r9";
    };
  
    outputs = [ "out" "lib" "dev" "man" "dnsutils" "host" ];
  
    patches = [ ./dont-keep-configure-flags.patch ./remove-mkdir-var.patch ] ++
  
negative.code:     stdenv.lib.optional enableSeccomp libseccomp;
  
    STD_CDEFINES = [ "-DDIG_SIGCHASE=1" ]; # support +sigchase
  
    BUILD_CC = "cc";
  
    depsBuildBuild = [ buildPackages.stdenv.cc ];
  
    configureFlags = [
      "--localstatedir=/var"
  