There is a new branch 'mesa_12' that addresses all Ian's comments. https://github.com/tarceri/Mesa_arrays_of_arrays.git In that branch 16/23 patches remain unreviewed. 3, 4 (r-b Ian but merged with Curro's changes), 7, 9, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22