anchor.diff:      "--enable-ipv6"
       "--enable-iri"
       "--enable-pcre"
  -    "--enable-xattr"
  -    "--without-libpsl"  # FIXME
       "--with-ssl=openssl"
       "--with-zlib"
       "--with-metalink"
       "--with-cares"
       "--with-openssl"
  -    "--with-libidn"
       "--with-libuuid"
     ];
   
  
positive.code:   buildInputs = [
      c-ares
      libidn2
      #libpsl  # FIXME: libpsl propagates libunistring causing libidn2 to be linked twice
      lzip
      openssl
      pcre
  
negative.code: 
  , c-ares
  , libidn2
  , libpsl
  , libunistring
  , lzip
  , openssl
  , pcre
  