The Roman Catholic church though is quite clear that membership of the Masons is not compatible with Roman Catholicism

The situation is more complicated, In the days of the 'Penny Catechism' that was certainly the case. Then, quoting the Catholic Herald:
'the Code of Canon Law was reformed, following Vatican II, the canon specifically prohibiting Catholics from joining "Masonic societies" was revised. In the new code, promulgated in 1983 by St John Paul II, explicit mention of Freemasonry was dropped completely. The new Canon 1374 referred only to societies that "plot against the Church".'

The Catholic Herald article seems to be a bit stuck in the past (which is the norm for the paper), but is quite clear that the Roman Catholic Church no longer singles out freemasons as such.