I hope you don't mind me saying, the missing object is specifically
/home/mikro/gnu-tools/m68k-atari-mint/lib/m68020-60/ldgstart.oIIRC, it's part of the "new" LDG format I've been working on. It provides callbacks to client's mintlib, i.e. you don't need to link any LDG module against mintlib (thus reducing file size by hundreds of percent) but it has its drawbacks, too. So as I say, revert to some older version and you're fine with linking only libldg.aalso it was needing ldgserver.lib whch I have no idea about. If your changes does not need this, it's great.
That seems as part of the "new" LDG as well. Damn it, I should have put it on a separate branch, no doubt. So again, just revert to an older version of zView.