So somebody finally bugged me about supporting vnlog tools on OSX. I was pretty sure that between all the redirection, process communication, and file descriptor management something was Linux-specific, but apparently not: everything just works. There were a few uninteresting issues with tool paths, core tool and linker flags and so on, but it was all really minor. I have a report that the test suite passes on OSX, and I verified it on FreeBSD.
I made a new 1.28 release tag, but it exists mostly for the benefit of any OSX or *BSD people who'd want to make a package for their system. Progress!