@masatake AFAICT there is no difference between latest git ctags [mio.c](https://github.com/universal-ctags/ctags/blob/master/main/mio.c) and latest git Geany [mio.c](https://github.com/geany/geany/blob/master/ctags/main/mio.c).
There is no other mio.c used in Geany.