I would have put this in the issues tracker, but it appears to be down. There have been some recent changes on the github.com version of ITK and I can no longer build. In particular the errors relate to the ExceptionObject:
variable has incomplete type ‘::itk::ExceptionObject’
itkGenericExceptionMacro(<< "Failed dynamic cast to "
expanded from macro ‘itkGenericExceptionMacro’
::itk::ExceptionObject e_(FILE, LINE, message.str().c_str()…
forward declaration of ‘itk::ExceptionObject’
Does anyone have an idea of why this behavior could be occurring?