https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78352
--- Comment #19 from Sergey Fedorov <vital.had at gmail dot com> --- (In reply to Iain Sandoe from comment #1) > Just to add one note, which is that Apple's gcc-4.2.1 implementation for > blocks was not actually submitted (and therefore doesn't exist on an FSF > server); it's my understanding that means we cannot use / forward port it. > > I'm working on a new version - based on trying to match what clang's current > code-gen produces. Is this implementation of some use for us? https://code.google.com/archive/p/plblocks/