[Insight-developers] Re: [Insight-users] Fixing bugs for ITK with MinGW

[Ali -]

> Well,
> 
> It turns out that the symbol template class
> 
>       itk::SmartPointerForwardReference<>
> 
> is actually already defined and exported in the file
> 
>     itkSmartPointerForwardReferenceProcessObject.cxx
> 
> 
> but the CMakeLists.txt file only adds it to the list of
> source files if "WIN32" is defined.
> 
> Yesterday, I tried modifying the CMake logic to include 
> itkSmartPointerForwardReferenceProcessObject.cxx in the
> ITKCommon library when we build on MinGW:
> 
> http://www.itk.org/cgi-bin/viewcvs.cgi/Code/Common/CMakeLists.txt.diff?cvsroot=Insight&r1=1.123&r2=1.124
> 
> 
> Lines 90-94:
> 
> 
>     ELSE (WIN32)
>       IF(MINGW)
>         SET(ITKCommon_SRCS ${ITKCommon_SRCS}
>            itkSmartPointerForwardReferenceProcessObject.cxx)
>       ENDIF(MINGW)
>     ENDIF (WIN32)
> 

Cmake never goes to 

ELSE (WIN32)
...
ENDIF (WIN32)


it only goes to 


IF (WIN32)

...

ENDIF (WIN32)


as I checked it by MESSAGE(), and on my XP+MINGW+MSYS system.

Since the target itkSmartPointerForwardReferenceProcessObject.cxx is already included in the WIN32 condition, this does not make any changes to the errors. 

> 
> 
> However I'm not sure if this is the appropriate logic...
> 
> 
> Ali:   Could you please update your CVS checkout of ITK
>         and give it a try ?

I gave it a try, the same errors again.

> 
>    You may want to add a MESSAGE() in the middle of the
>    IF(MINGW) to make sure that CMake is actually visiting
>    that line.
> 
> 
>    Please let us know if this change works for you,
> 
> 
>       Thanks
> 
> 
> 
>           Luis
> 


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