Annoying prompt keeps popping up: 'The "cc" command requires the command line developer tools.'

Following a suggestion I've made a search on the System Console just after the prompt popped up. Founding this: "Apr 26 12:48:58 MBP-de-Osmar Install Command Line Developer Tools[21410]: DEPRECATED USE in libdispatch client: dispatch source activated with no event handler set; set a breakpoint on _dispatch_bug_deprecated to debug".

So, it would appear that whichever app is calling libdispatch, is the culprit. So far, more specific searcher on the console were unfruitful.

EDIT: it would appear that the culprit was MacTeX. I uninstalled it (because one of my somewhat specific routines wasn't working properly, and troubleshooting was getting nowhere) to reinstall later. In the two days since I've uninstalled it, it would appear that the problem in gone.

I've already contacted the MacTeX team.

It may be BBEdit or something related to TeX.

It's a longshot, but if you run Console, you may get a clue by searching for whether anything is throwing an error regarding the "Command Line."