How do you get gtags working with Lua?

Question

How do you get gtags working with Lua? I want to be able to have same tags functionality for Lua like with C/C++, i.e. find definitions of functions, function references, symbol references, etc. I have universal ctags and gtags on my system and tried the ctags and new-ctags options when doing ggtags-create-tags, but when I try using ggtags functions nothing happens on Lua functions & variables.

Answer 1

I was able to generate the tags running gtags --gtagslabel=ctags from the root of the project, using a configuration from ubuntu (zcat /usr/share/doc/global/examples/gtags.conf.gz > ~/.globalrc). It included at least C, C++, Lua and Javascript.