[Bug testsuite/81690] libgomp.c/{target-32,thread-limit-2}.c fail for nvptx: missing usleep

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81690

--- Comment #9 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Tobias Burnus from comment #4)
> The omp_is_initial_device() is only resolved at run time - hence, I think
> the linker still wants to see "usleep".
> 

Well, yes, but that could be fixed: 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82251