Enabling Exceptions in CMake

[David Narvaez]

Hi,

I just noticed the old CMake line my project used to enable exceptions
on a single file was not working and I dug into the ECM modules to
find the correct way to do that. But I don't see exceptions mentioned
in the ECM SIC page[0], should that documentation be there? i.e., is
this considered an SIC?

David E. Narvaez

[0] https://techbase.kde.org/Development/ECM_SourceIncompatChanges