@techee referencing to the build log for mingw here. Ctags seems to have a lot of size and signedness mismatch errors. Are they all safe? They don't show on an autotools CI mingw build (https://github.com/geany/geany/pull/3465 for eg) maybe meson has more strict default flags, and they need to be relaxed?
I've seen these too but I haven't investigated much what is going on. Also there are some warnings about unused functions - we build only a subset of ctags, and, as a result, some code isn't used at all.