I bought a imac recently and I tried to install qgis: without success! It is not possible to read the raster files. I installed GDAL ECW plugin, but it is necessary to copy and paste another file from ERDAS ECW/JPEG2000 following this instruction.
"VERY IMPORTANT POST-INSTALL
You MUST download and install the ECW SDK yourself. I don't have the means to enforce export restrictions. I'm sorry, but installation is a manual process for now:
Go to http://download.intergraph.com/download-portal. Select "ERDAS ECW/JPEG2000 SDK" from the Product popup. Click on the MacOSX line, then the Download Now link.
Open the downloaded disk image and run the installer. It will install into the top of your boot drive, /Intergraph. Dig into this folder to Desktop_Read-Only/redistributable/libstdc++.
Copy the libNCSEcw.dylib file to:
and copy the whole Desktop_Read-Only/etc folder here to:
so it looks like (there may be other files in Libraries and PlugIns for other installed plugins):
Library Application Support GDAL 1.11 etc Libraries libNCSEcw.dylib PlugIns gdal_ECW_JP2ECW.dylib
You can trash the installed Intergraph folder when done to save a few hundred MB of space.
I failed the procedure! Could you help me?