Installing BBN_802.11 problem

Hello, everyone,
I pretty new to gnuradio and I was trying to install BBN_802.11.
However, when I make the file I get something like

bbn_tap.h:38:24: fatal error: omnithread.h: No such file or directory

I found my omnithread.h at

I tried fiddle with the makefile changing the included path and stuff,
I also tried reinstalling gnuradio and nothing works.

I was wondering if there is anyway I can fix this? or should I reinstall
ubuntu and try it fresh?

Thank you very much for any ideas.