Though this piece of news appears in many news sources, most prefer to focus on other issues brought up in the speech, or to focus on the Muslim veil issue. The Dutch newspaper Elsevier, brings the most direct quote I've found. I'm sure the full speech will be available in the near future.
Cardinal Renato Raffaele Martino, who heads the Vatican department dealing with migration issues, declared yesterday that Muslims in Europe need to adapt to European laws. The Cardinal was presenting the Pope's message for the Roman Catholic Church's World Day of Migrants and Refugees.
Muslim immigrants in non-Muslim lands must "respect the traditions, symbols, cultur and religion of the lands to which they moved", and therefore subordinate their own religious regulations.
The cardinal brought up the Muslim veil as an example. If Muslims do not follow this or similar laws, the authorities must force observance of the law.
Source: Elsevier (Dutch)