Python Wrapping build error

melrobin · October 5, 2018, 11:06pm

I can build ITK from development sources fine, but when I turn on Python wrapping I get a few errors of the sort:
[ 29%] Generating …/…/itkLevelSetNode.xml
In file included from /home/melrobin/packages/ITK/build/Wrapping/itkLabelContourImageFilter.cxx:16:
In file included from /home/melrobin/packages/ITK/Modules/Filtering/ImageLabel/include/itkLabelContourImageFilter.h:22:
/home/melrobin/packages/ITK/Modules/Filtering/ImageLabel/include/itkScanlineFilterCommon.h:136:16: error:
use of undeclared identifier ‘m_LineMap’
MapBegin = m_LineMap.begin();

How can everything build fine, but wrapping cause these errors?

dzenanz · October 6, 2018, 2:15pm

That must have been caused by some recent code refactoring. I will try building with Python wrapping and fix the errors.

The answer lies in conditional compilation:

github.com

InsightSoftwareConsortium/ITK/blob/e24e35893be7026c05c14473221498dd2f417873/Modules/Filtering/ImageLabel/include/itkScanlineFilterCommon.h#L482-L484


      
          #if !defined( ITK_WRAPPING_PARSER )
            LineMapType m_LineMap;
          #endif

dzenanz · October 6, 2018, 5:13pm

Does this patch fix it for you?

melrobin · October 6, 2018, 8:27pm

OK, I’m going to give this a short and reply back.

melrobin · October 6, 2018, 9:39pm

The patch fixed the build problem.