Upstreaming the glibc Hurd port

[Joseph Myers]

On Wed, 18 Apr 2018, Samuel Thibault wrote:

> The patch below would just introduce bits/types/struct___sched_param.h.
> and bits/types/struct_sched_param.h for all ports since it's the same.

A bits/types/struct_sched_param.h that does "#define sched_param 
__sched_param" is not appropriate for Linux, because it would change the 
C++ mangling of struct sched_param.

-- 
Joseph S. Myers
joseph@codesourcery.com