WIP: just adding .i file breaks the build

Modules/Filtering/ImageStatistics/wrapping/CMakeLists.txt

@@ -1,6 +1,3 @@
 itk_wrap_module(ITKImageStatistics)
-if(ITK_WRAP_PYTHON)
-  set(WRAPPER_SUBMODULE_ORDER itkLabelOverlapMeasuresImageFilter_LabelSetMeasures)
-  list(APPEND WRAPPER_SWIG_LIBRARY_FILES "${CMAKE_CURRENT_LIST_DIR}/itkLabelOverlapMeasuresImageFilter.i")
-endif()
+list(APPEND WRAPPER_SWIG_LIBRARY_FILES "${CMAKE_CURRENT_LIST_DIR}/itkLabelOverlapMeasuresImageFilter.i")
 itk_auto_load_and_end_wrap_submodules()

Modules/Filtering/ImageStatistics/wrapping/itkLabelOverlapMeasuresImageFilter.i

@@ -1,10 +1 @@
-%include <std_unordered_map.i>
 
-%template(hashmapUCLOLSM)    std::unordered_map< unsigned char, itk::LabelOverlapLabelSetMeasures >;
-%template(hashmapSCLOLSM)    std::unordered_map< signed char, itk::LabelOverlapLabelSetMeasures >;
-%template(hashmapUSLOLSM)    std::unordered_map< unsigned short, itk::LabelOverlapLabelSetMeasures >;
-%template(hashmapSSLOLSM)    std::unordered_map< signed short, itk::LabelOverlapLabelSetMeasures >;
-%template(hashmapULLOLSM)    std::unordered_map< unsigned long, itk::LabelOverlapLabelSetMeasures >;
-%template(hashmapSLLOLSM)    std::unordered_map< signed long, itk::LabelOverlapLabelSetMeasures >;
-%template(hashmapULLLOLSM)   std::unordered_map< unsigned long long, itk::LabelOverlapLabelSetMeasures >;
-%template(hashmapSLLLOLSM)   std::unordered_map< signed long long, itk::LabelOverlapLabelSetMeasures >;

Modules/Filtering/ImageStatistics/wrapping/itkLabelOverlapMeasuresImageFilter.wrap

@@ -1,3 +1,8 @@
+set(WRAPPER_AUTO_INCLUDE_HEADERS OFF)
+itk_wrap_include("itkLabelOverlapMeasuresImageFilter.h")
+itk_wrap_simple_class("itk::LabelOverlapLabelSetMeasures")
+set(WRAPPER_AUTO_INCLUDE_HEADERS ON)
+
 itk_wrap_class("itk::LabelOverlapMeasuresImageFilter" POINTER)
   itk_wrap_image_filter("${WRAP_ITK_INT}" 1)
 itk_end_wrap_class()