I'm running OSX 10.10.5 and just upgraded QGIS from 2.14 to 2.16.
1st. the installed GDAL 2.1 wasn't registering when using gdalinfo --version. It still showed 1.11... So I used MAPBOX GUIDE to get the 2.1 to be added to my PATH. But running SAGA tools from Processing seems to be broken ex. running Fill Sink only results in ERROR.
I tried to re install the 2.14 again (removing qgis.app and ~/.qgis2)
Now 2.14 which worked earlier is not working properly either!
Could anyone give me a clue how to properly install either 2.14 or 2.16 on a mac so both SAGA tools and specially Raster tools will work.