I was able to build the code following the ubuntu instructions on this forum using the code that I downloaded from the mfix.netl.doe.gov website. This all worked on linux mint except boost, but 1.87 seemed to work. I was able to build the code and include your //wdf additions. When I run the code, I get the below error message. It appears that you did not provide the geometry file.
ERROR: Cannot open file static-pile_Zhouetal.csg
terminate called after throwing an instance of ‘csg::Exception’
what(): Exception Data:
Source : read_csg
Message : ERROR: Cannot open file static-pile_Zhouetal.csg