https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86052
--- Comment #3 from Jürgen Reuter <juergen.reuter at desy dot de> --- Paul, it is not my example, it was posted by Alberto Fco. Martín-Huertas in December 2015 on c.l.f., and you commented at that time that you were contemplating on how to implement PDTs together with recursive allocatables :P I am just playing a little bit around and following the (older) entries on c.l.f.