macOS alternative to Meld The mojave upgrade from 10.14.5 to 10.14.6 broke my old VLC install (already fixed by upgrading the VLC install) and I think it has also broken my Meld 3.19.2.osx6 build provided through Homebrew.

I don't find any build more recent than mine.

What's the different thought way to meld in macOS? (What's the alternative free (and gratis) program?)
Have you seen this fork?  https://yousseb.github.io/meld/
Maybe that will work???

As for alternatives there is FileMerge that comes with Xcode.  To open it from the terminal, run opendiff.