https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60512
--- Comment #16 from Iain Sandoe <iains at gcc dot gnu.org> --- (In reply to Iain Sandoe from comment #15) > (In reply to Alex Coplan from comment #14) > > I'm working on this. > > I will rebase my WIP and push it somewhere - [ it has __has_feature and > __has_extension components .. but likely bit rotten with changes to libcpp ] > (sorry for being slow to do this - releases tie up all my Darwin time. https://github.com/iains/gcc-git/tree/master-wip-has-extension (it might not even build - I was hoping to have some time to refresh it - but better publish now in case it's useful in any way ) AFAIR the main blocker to progress was trying to decide how to represent the target/language/language version dependencies of the features and extensions (there's a rudimentary scheme at the moment but it probably is not flexible enough)
