Upstreaming the glibc Hurd port

[Florian Weimer]

On 04/02/2018 02:10 AM, Samuel Thibault wrote:
> - elf/check-execstack: We have nested functions which make the stack
>    executable indeed.

I looked at the Hurd situation last month.  Hurd is always 
read-implies-exec, I think.  So there is no need to make the stacks 
executable, it does not have any observable effect on execution and 
therefore cannot be tested.

Thanks,
Florian