Re: make check failure on HPUX-11.23 and HPUX-11.31

[Gary V. Vaughan]

Hi Eric,

On 11 Mar 2013, at 19:54, Eric Blake <address@hidden> wrote:
> On 03/10/2013 09:19 PM, Gary V. Vaughan wrote:
>> I don't really understand the nuances of this test enough to debug
>> any further.  It looks like the expectations are too tight by
>> requiring an error rather than a silent failure.  WDYT?
>> 
> 
>> ...
>> hpux% echo nothing | ./src/m4 >&-
>> hpux% echo $?
>> 0
> 
> Hmm.  POSIX says that we can't rely on >&- closing stdout; it works on
> most platforms, but HPUX apparently ignores the request and reopens
> stdout to /dev/null, and POSIX allows this behavior.  The test is too
> strict, and should be checking whether it is possible to start a program
> with stdout closed before requiring a particular behavior in that
> condition (since HPUX has no way to get into that condition).
> 
>> Curiously, this test behaves as expected on HPUX-11.11 and 11.00.
>> Safe to ignore?  Can the test case be fixed?
> 
> I'll see what I can come up with today.  If I don't come up with a way,
> then it is safe to ignore.

I'm fine with your just making it skip on HPUX >= 11.23 if a portable fix
is not straight forward.

Cheers,
-- 
Gary V. Vaughan (gary AT gnu DOT org)