There was a solidarity picket of the Irish Embassy in Madrid, organised by the Federación Anarquista Ibérica, the Iberian section of the International of Anarchist Federations ( http://www.iaf-ifa.org/) They have also made up posters about Rossport, and carried articles in their monthly magazine, Tierra y Libertad.
( http://www.nodo50.org/tierraylibertad/225.html#articulo1)

for photos see  http://www.indymedia.ie/article/84223