[hurd,commited] hurd: Fix build ot misc/tst-preadvwritev2-common.c

[Adhemerval Zanella]

On 04/09/2017 10:40, Florian Weimer wrote:
> On 09/04/2017 02:36 PM, Adhemerval Zanella wrote:
>>
>>
>> On 04/09/2017 05:11, Florian Weimer wrote:
>>> On 09/03/2017 05:52 PM, Samuel Thibault wrote:
>>>> +	* misc/tst-preadvwritev2-common.c (RWF_HIPRI, RWF_DSYNC, RWF_SYNC,
>>>> +	RWF_NOWAIT): Define to 0 if undefined already.
>>>> +	(do_test_with_invalid_flags): Set invalid_flag to 2 if RWF_SUPPORTED
>>>> +	boils down to 0.
>>>
>>> I don't think this is correct.  preadv2 etc. are supposed to be part of
>>> the GNU API, so if Hurd doesn't have definitions of the WRF_* constants,
>>> that's a real bug.
>>
>> I agree and the default implementation on sysdeps/posix/preadv2.c (which
>> I think it is also the default of hurd) will fail for any flag different
>> than 0. Should we add a note on manual the current flags are Linux only?
> 
> I would have expected that we'd add the flags to the generic API.

I meant that the flags only really *work* on Linux.