[throwaway82652]

>5. automake documentation discourages developers from globbing source files in source directories, and insists they list them individually. It's silly and just results in needless running of configure.

No it's not silly, realistically you can't actually do that anywhere without re-running configure. Any build system based on directory trees will have this limitation. See meson's docs for more on this: https://mesonbuild.com/FAQ.html#why-cant-i-specify-target-fi...

I also came here to comment that libtool is totally useless on modern systems and I hope it gets removed or made optional, but you beat me to it :)

[mathstuf]

The other problem is that during a Git conflict resolution, other files matching that glob get dropped into your source tree. Globbing these up is…never going to go well.