bug#14707: automake 1.14 test hang for t/compile4.sh on Linux if "cl" executable is in path

[Stefano Lattarini]

On 06/25/2013 06:12 PM, Diab Jerius wrote:
> On Mon, 2013-06-24 at 23:22 +0200, Stefano Lattarini wrote:
>> severity 14707 minor
>> tags 14707 + moreinfo
>> thanks
>>
>> On 06/24/2013 04:45 PM, Diab Jerius wrote:
>>> Hi,
>>>
>> Hi Diab, thanks for the report.
>>
>>> On the Linux boxes I compile on, there's a /usr/local/bin/cl executable
>>> (from the IRAF package).  Unfortunately, it seems that t/compile4.sh
>>> interprets that as a Microsoft compiler.
>>>
>>> The IRAF cl is an interactive program,
>>>
>> What happens if the program is run with its stdin redirected from /dev/null?
>> Does it exit immediately, or does it still hang?  Also, does the program
>> support a --version or --help option that might lead us to rule it out?
>>
>>> so compile4.sh invokes it and it hangs waiting for input.
>>>
>> (Which is quite annoying indeed).
>>
>>> Is there perhaps a better way of checking for the Microsoft compiler, or
>>> restricting these tests to Microsoft operating systems?
>>>
>> I'd rather try the workarounds I proposed above first.  If they don't
>> work, we should go along with your suggestion.
>>
>> Thank you,
>>   Stefano
> 
> As the tests progress, it looks like there are more with the
> same issue.
>
Not to worry, those tests all share the same code for requesting
prerequisites, so the all the issues should disappear once we
fix the code for the "cl" requirement.  Patch coming up soon...

> For completeness, here's the list:
> 
> t/compile4.sh
> t/depcomp-lt-msvcmsys.tap
> t/depcomp-lt-msvisualcpp.tap
> t/depcomp-msvcmsys.tap
> t/depcomp-msvisualcpp.tap
> 
> 

Thanks,
  Stefano