anchor.diff:    buildInputs = [
       c-ares
       libidn2
  -    libpsl
  +    #libpsl  # FIXME: libpsl propagates libunistring causing libidn2 to be linked twice
       lzip
       openssl
       pcre
  
positive.code:     "--enable-ipv6"
      "--enable-iri"
      "--enable-pcre"
      "--with-ssl=openssl"
      "--with-zlib"
      "--with-metalink"
  
negative.code: 
  , c-ares
  , libidn2
  #, libpsl
  , lzip
  , openssl
  , pcre
  