[Bug c++/82635] std::thread's join broken on FreeBSD with all GCCs >= 5

[h2+bugs at fsfe dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82635

--- Comment #1 from Hannes Hauswedell <h2+bugs at fsfe dot org> ---
Created attachment 42411
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42411&action=edit
test program