I made a old circuit using diglog and now those are not working and saying some errors , D_INV not found and so on,,,,
I went through main chipmunk site and install it but not working on windows and and Linux.
fortunately i found a chipmunk (diglog) folder in my old system, http://narendra.sisodiya.googlepages.com/chipmunk.rar download it from here. It was some problem with version of log (diglog). so if you are getting problem with any .lgf file,,, this folder will help you out,,,