[Bug jit/64206] fake.so is unlinked too early for some users

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64206

--- Comment #5 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
(In reply to David Malcolm from comment #4)
> Created attachment 34233 [details]
> Updated patch

I've introduced a gcc::jit::tempdir class in r218533 (which appears to be a
reasonable simplification in itself)

Attachment 34233 implements the idea of using this tempdir class to defer
cleanup until later.

Does this fix the symptoms you're seeing?