[CJefferson]

You are right, I mis-remembered what the flag did, sorry.

I've seen projects with -pedantics -Werror, which are particularly annoying (-Werror in general to be honest, I understand why people might want it for CI of course).

[carlmr]

I like using -Wall -Wextra -Werror for code under my control, but I would disable that flag if distributed as a library to others.