I know how to fix this by inserting a space before :, but I know that there are a bunch of files after the update, and this is not an important issue for me. I am looking for it in the build settings, but no one seems to address this.
Thanks.
So, I found this for a single file:
#pragma clang diagnostic ignored "-Wmissing-selector-name"
The name I got from here: https://github.com/eerolanguage/clang-trunk/blob/master/test/SemaObjC/warning-missing-selector-name.m
So I put it in the precompiled header "Project.pch" and it works for my entire project, and I'm interested in a nicer solution, if possible, as a custom build setting, for example. I tried, but did not find the syntax that worked.