Re: [boost] [EXTERNAL] Clang Darwin trunk Cray 8.0 and max_digits10 support - problem in config?

Subject: Re: [boost] [EXTERNAL] Clang Darwin trunk Cray 8.0 and max_digits10 support - problem in config?
From: Belcourt, Kenneth (kbelco_at_[hidden])
Date: 2012-07-09 18:20:48

On Jul 9, 2012, at 10:03 AM, Paul A. Bristow wrote:

>> -----Original Message-----
>> From: boost-bounces_at_[hidden] [mailto:boost-bounces_at_[hidden]] On Behalf Of Michel
> Morin
>> Sent: Monday, July 09, 2012 3:52 PM
>> To: boost_at_[hidden]
>> Subject: Re: [boost] Clang Darwin trunk Cray 8.0 and max_digits10 support - problem in config?
>> 
>> Paul A. Bristow wrote:
>>> for Clang the messages are
>>> 
>>> In file included from ../libs/math/test/zztest_max_digits10.cpp:27:
>>> In file included from ../boost/config.hpp:40:
>>> ../boost/config/select_stdlib_config.hpp:18:12: fatal error: 'cstddef'
>>> file not found #  include <cstddef>
>>> 
>>> In file included from ../libs/math/test/ztest_max_digits10.cpp:27:
>>> In file included from ../boost/config.hpp:40:
>>> ../boost/config/select_stdlib_config.hpp:18:12: fatal error: 'cstddef'
>>> file not found
>> 
>> boost/config/select_stdlib_config.hpp includes <cstddef> to determine which stdlib is used. It
> seems that,
>> due to some misconfiguration in the test runner, clang cannot find <cstddef>.
>> In my system (Mac OS X 10.7, clang trunk, libc++ and boost trunk), the two tests run fine.
> 
> Well, that's reassuring :-)
> 
> Is there anything else I should do to alert the test runners that very many tests will now fail on
> their platforms until this is corrected?

This is, I'm afraid, out of the test runners hands.  The issue is that clang (the same binary) works fine on these platforms if we disable c++11, not sure why enabling c++11 triggers missing cstddef header problems.  We may need to followup with the clang developers to see if this behavior is known / expected or considered a bug.

-- Noel