2010/7/15 Prof Brian Ripley <[email protected]>:
> Meanwhile (because I am working with 1.0) I have done a local svn merge and
> tested my example problems, which now compile.
>
> Thanks to all, especially Kai.
>
> On Thu, 15 Jul 2010, Ozkan Sezer wrote:
>
>> On Thu, Jul 15, 2010 at 4:09 PM, Kai Tietz <[email protected]>
>> wrote:
>>>
>>> 2010/7/15 Ozkan Sezer <[email protected]>:
>>>>
>>>> On Thu, Jul 15, 2010 at 3:11 PM, [email protected] <[email protected]>
>>>> wrote:
>>>>>
>>>>> Hi,
>>>>> On 15/07/2010 9:50 PM, Kai Tietz wrote:
>>>>>>
>>>>>> 2010/7/15 Kai Tietz<[email protected]>:
>>>>>>>
>>>>>>> 2010/7/15 [email protected]<[email protected]>:
>>>>>>>>
>>>>>>>> Hi
>>>>>>>> On 15/07/2010 8:47 PM, Prof Brian Ripley wrote:
>>>>>>>>>
>>>>>>>>> We're working towards switching over to post-April snapshots, but
>>>>>>>>> we
>>>>>>>>> have 1000s of R packages to recompile. A couple of those (so far)
>>>>>>>>> have thrown up header conflicts.
>>>>>>>>>
>>>>>>>>> Specifically for this report I used
>>>>>>>>> mingw-w64-1.0-bin_i686-mingw_20100702.zip but I first found the
>>>>>>>>> problem with a Linux cross-compiler snapshot. This is a
>>>>>>>>> distillation
>>>>>>>>> of a very much more complex issue involving BOOST headers.
>>>>>>>>>
>>>>>>>>> If I compile the two-line C++ file test.cpp
>>>>>>>>>
>>>>>>>>> #include<process.h>
>>>>>>>>> #include<cstdlib>
>>>>>>>>>
>>>>>>>>> with x86_64-w64-mingw32-g++ -c test.cpp I get
>>>>>>>>>
>>>>>>>>> In file included from test.cpp:2:0:
>>>>>>>>>
>>>>>>>>> e:/r/w64/gcc-4.5.1/lib/gcc/../../x86_64-w64-mingw32/include/c++/4.5.1/cstdlib:166:11:
>>>>>>>>> error: '::_Exit' has not been declared
>>>>>>>>>
>>>>>>>>> e:/r/w64/gcc-4.5.1/lib/gcc/../../x86_64-w64-mingw32/include/c++/4.5.1/cstdlib:204:22:
>>>>>>>>> error: '__gnu_cxx::_Exit' has not been declared
>>>>>>>>>
>>>>>>>>> This code works in the 20100405 snapshot (of 4.4.4). I have a
>>>>>>>>> simple
>>>>>>>>> workaround (#include<cstdlib> at the top of the affected files),
>>>>>>>>> but
>>>>>>>>> the code concerned is not mine and I don't believe that should be
>>>>>>>>> necessary. The conflict is caused by this block of code
>>>>>>>>>
>>>>>>>>> #ifndef _CRT_TERMINATE_DEFINED
>>>>>>>>> #define _CRT_TERMINATE_DEFINED
>>>>>>>>> void __cdecl __MINGW_NOTHROW exit(int _Code)
>>>>>>>>> __MINGW_ATTRIB_NORETURN;
>>>>>>>>> _CRTIMP void __cdecl __MINGW_NOTHROW _exit(int _Code)
>>>>>>>>> __MINGW_ATTRIB_NORETURN;
>>>>>>>>>
>>>>>>>>> #pragma push_macro("abort")
>>>>>>>>> #undef abort
>>>>>>>>> void __cdecl __declspec(noreturn) abort(void);
>>>>>>>>> #pragma pop_macro("abort")
>>>>>>>>>
>>>>>>>>> #endif
>>>>>>>>>
>>>>>>>>> I'd welcome advice about the correct fix here.
>>>>>>>>>
>>>>>>>>> Brian Ripley
>>>>>>>>>
>>>>>>>>
>>>>>>>> I think if you build your own compiler and then you do --disable-c99
>>>>>>>> this problem will go away but the issue probably isn't there just
>>>>>>>> because of c99 enabled.
>>>>>>>> I have encountered this issue on another level of software where
>>>>>>>> this
>>>>>>>> can be a header inclusion order problem or C99 get enabled problem.
>>>>>>>> I was investigating such compile problem and found that
>>>>>>>> incompatibilities when c99 enabled when you include C headers in
>>>>>>>> mixed
>>>>>>>> fashion with C++ headers this problem tends to occur.
>>>>>>>> However, it can be simply work-around problem, or alternatively you
>>>>>>>> can
>>>>>>>> disable-c99.
>>>>>>>> But it seems you're using the compiler by the buildbot...
>>>>>>>> Maybe someone else can shed more light on this issue.
>>>>>>>>
>>>>>>>>
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>>>>>>>>
>>>>>>>
>>>>>>> The issue is in libstdc++ headers. Here the _Exit doesn't get (as
>>>>>>> other runtime functions of stdlib.h) no put into std:: namespace. So
>>>>>>> this is an issue to be address to gcc bugzilla. AFAIR there is
>>>>>>> already
>>>>>>> a report for it, but I am not sure.
>>>>>>> I don't see here a good solution for this to fix this in our headers,
>>>>>>> but maybe someone of you have an idea how to solve it on our site.
>>>>>>>
>>>>>>> Regards,
>>>>>>> Kai
>>>>>>>
>>>>>>> --
>>>>>>> | (\_/) This is Bunny. Copy and paste
>>>>>>> | (='.'=) Bunny into your signature to help
>>>>>>> | (")_(") him gain world domination
>>>>>>>
>>>>>>
>>>>>> I see the issue in our headers. I prepare a fix for it soon. It would
>>>>>> be nice if you could test the patch, if it fixes your problem
>>>>>> (Committed at revision 2837 to trunk).
>>>>>>
>>>>>> Thanks for reporting it,
>>>>>> Kai
>>>>>>
>>>>>
>>>>> Kai:
>>>>> Thanks for the hot patch at revision 2837
>>>>> I tried the patched headers and tried to compile the affected software
>>>>> library again! This time it compiles successfully!
>>>>> Great! Now no more need to work around it.
>>>>>
>>>>> Best Regards
>>>>
>>>> Kai, can you apply the fix to 1.0 branch, too? (Or sholud I do it?)
>>>>
>>>> --
>>>> Ozkan
>>>>
>>>
>>> Feel free to merge it into 1.0. Sorry, I am at office at the moment
>>> and pretty busy. I can do this not before evening.
>>>
>>> Cheers,
>>> Kai
>>>
>>> --
>>> | (\_/) This is Bunny. Copy and paste
>>> | (='.'=) Bunny into your signature to help
>>> | (")_(") him gain world domination
>>>
>>
>> Merged back to v1.0 branch at rev. 2839.
>>
>> --
>> Ozkan
>>
>>
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>>
>
> --
> Brian D. Ripley, [email protected]
> Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
> University of Oxford, Tel: +44 1865 272861 (self)
> 1 South Parks Road, +44 1865 272866 (PA)
> Oxford OX1 3TG, UK Fax: +44 1865 272595
be welcome.
Kai
PS: Ozkan, thanks for back-merge
--
| (\_/) This is Bunny. Copy and paste
| (='.'=) Bunny into your signature to help
| (")_(") him gain world domination
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