Update - Many people are insisting I need to declare an iVar for the property. Some are saying not so, as I am using Modern Runtime (64 bit). I can confirm that I have bee
I just ran into that same problem but the sources were complex enough that I didn't quite understand what made iVar from the parent inaccessible when I used GCC. I only knew for sure that a few months ago and before changes in my code it worked and also that it is working with clang which I've been using for a while. Suddenly I had to build with GCC and it wouldn't anymore.
At least this article gave me a bypass (declare the iVars). I am surprised that the latest version of XCode does not include a fixed compiler