gnu global, getting gtags to treat .h files as C++

I’m still experimenting with tagging in Emacs.  I think my current favorite is using gnu-global.

Unfortunately I just joined a team where all their c++ header files start with .h.  By default gnu-global treats these as c, and results are poor.  While I think there’s a more sophisticated way to handle the problem, I just use:

export GTAGSFORCECPP=””