On Dec 23, 2010, at 7:02 AM, Cyril Hrubis <[email protected]> wrote:

> Hi!
>>>> Hi!
>>>> Newer glibc returns 200809 as a result from sysconf(_SC_ASYNCHRONOUS_IO)
>>>> (the git commit was done on 26 Feb 2009) and the change seems to be
>>>> propagated into stable glibc versions (mine is 2.11.2-r3).
>>>> 
>>>> The problem is that nearly all aio testcases starts with
>>>> 
>>>> if (sysconf(_SC_ASYNCHRONOUS_IO) != 200112L)
>>>>        return PTS_UNRESOLVED;
>>>> 
>>>> So these tests are disabled with newer glibc.
>>>> 
>>>> However the changes between posix 200112 and 200908 seems to be minimal
>>>> (I haven't been able to find the full list of changes, but at least the
>>>>  testcases seems to work.)
>>>> 
>>>> My proposal is to do one of the following:
>>>> 
>>>> * remove these two lines to enable the tests
>>>> 
>>>> * change them to sysconf(_SC_ASYNCHRONOUS_IO) >= 200112L
>>> 
>>> Option 2 is better than option 1.
>> 
>> That being said though, it would be nice if we had tests specific to
>> these requirements, in addition to ones that aren't, and if glibc is
>> unnecessarily bumping values then someone needs to talk to Ulrich
>> about not creating unnecessary churn.
> 
> The problem is that I've been unable to find a document which sumarizes
> changes between 1003.1-2002 and 1003.1-2008. And coparing the
> documentation page by page is troublesome, especially when there seems
> to be minimal number of changes.

All of the changes between versions are noted in the manpages, and although 
they can be straightforward, some are subtle and hard to find..
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