[Development] [semi-solved] Qt5 moc error in combination with boost

[Jan Krause]

Am 25.01.2013 21:34, schrieb Knoll Lars:
>
> On Jan 22, 2013, at 8:31 PM, Jan Krause <jan.krause.no19 at gmail.com 
> <mailto:jan.krause.no19 at gmail.com>> wrote:
>
>> Am 22.01.2013 14:58, schrieb Olivier Goffart:
>>> On Tuesday 22 January 2013 06:32:45 Charley Bay wrote:
>>>> There's a Qt5 moc error when using Boost, with a work-around.  See:
>>>> http://qt-project.org/forums/viewthread/22993
>>>>
>>>> It describes "Boost 1.49", but this work-around also works for "Boost 1.52":
>>>>
>>>> ...leads to compile error (Win7/MSVS2010):
>>>>
>>>> C:/Some/Path/3rd/Boost/boost_1_52_0/boost/mpl/if.hpp(131): Error: Macro
>>>> argument mismatch.
>>>> Project : error PRJ0019: A tool returned an error code from "MOC
>>>> ..\..\Some\Path\MyClass.hpp"
>>>>
>>>> Work-around, in ALL files that "moc":
>>>>
>>>> //...USING BOOST, MUST GUARD INCLUSION...
>>>> #ifndef Q_MOC_RUN
>>>> # include <boost/function.hpp>
>>>> # include "MyClass.hpp"
>>>> #endif // Q_MOC_RUN
>>>>
>>>> We're not using much of Boost 1.52, but we *do* use some of the
>>>> "type/traits" stuff (which triggers this error).
>>>>
>>>> There are a few "Boost/moc" errors/bugs reported in
>>>> https://bugreports.qt-project.org/, but I couldn't find this one.  Did I
>>>> miss it, or should I create a new one?
>>>>
>>>> I'm specifically curious about when this might be fixed, as the work-around
>>>> is annoying (I haven't looked into what the fix might be).
>>>>
>>>> Thanks!
>>>>
>>>> --charley
>>> I have boost 1.50 here and I cannot reproduce the issue.
>>>
>>> Please open a new bug report and if possible, a small test-case that does not
>>> depends on boost.
>>> Try to copy all the involved macro in a file.
>>>
>>
>> I have maybe the same/similiar error (qt5.0, boost 1.52). After 
>> including
>>
>> #include<boost/uuid/uuid.hpp>
>> #include  <boost/uuid/random_generator.hpp>
>>
>> in a qt-header file, I get the error
>>
>> boost/mpl/if.hpp(131): Error: Macro argument mismatch.
>>
>> during compiling of the correspondence moc_...cpp file. It looks like 
>> a preprocessor error message...
>
> Could you please file a bug report in Jira for this? Ideally with a 
> test case (and the exact boost version).
>
> moc is now (since 5.0) parsing preprocessor statements (which fixes 
> many other bugs). I thought I had all problems fixed, but boost 
> headers are extremely evil with macros.
>
> Thanks,
> Lars
>>
>> Cheers
>> Jan
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>
I created https://bugreports.qt-project.org/browse/QTBUG-29331.
I have this issue with boost 1.50 and 1.52 on win7 with msvc2010. 
Hopefully this is enough. I attached my a small test project. I really 
don't know how to create a suitable test case...

regards
jan


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