@partha I’ve downloaded and successfully built the Luminance from source on MacOS-X. @HIRAM (Richard) has made a very good job of this and published a DMG. As things stand, I believe Richard will undertake this task and I’ll help him if/when he asks. If you and Richard want to cooperate, that’s even better.
I’m always happy to help with these matters. I’m the Principal Contributor to Exiv2. I’m 66 and retired. Thank goodness I don’t have to work because there are times when Exiv2 is a full-time unpaid job. However I’m happy to help our my friends on the Luminance Team.