[Bug libstdc++/67843] experimental/filesystem/iterators/directory_iterator.cc fails on armv5t

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67843

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
I'm unable to build an armv7 toolchain, it keeps failing with an ICE, so I'll
need more information to do anything about this.