perennity of cygwin_internal(CW_GET_ERRNO_FROM_WINERROR,err)

[Samuel Thibault]

Hi,

While writing a library for instance, we'd like
to return appropriate errno values, and for this
cygwin_internal(CW_GET_ERRNO_FROM_WINERROR,err) would be much useful.

Documentation says "Stay away unless you know what you're doing". Could
it be removed some day, and hence we shouldn't use it?

Regards,
Samuel

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