RTTI is required

[wolfv]

I was upgrading LFortran to use the latest xeus. LFortran (by default) adds a -fno-rtti flag. This crashes in the dynamic_cast<xcontext_impl<T>*>(this);.

Would a static_cast<...> instead work?

[wolfv]

I can confirm that a static_cast<...> works. I guess we loose the type check.

[JohanMabille]

This (the dynamic_cast) is something we want to keep, especially now that the instantiation of the context is done in external libraries. It has been replaced with a static_cast for now, because of hidden symbols issues, but it should be restored in the next major release.