The library is not set up to support the Teensy processor....
Looks like this is a known issue: #7 opened on 24 Apr 2017 by Jorgen-VikingGod
/Users/lafleur/Desktop/ARDOP-Development/libraries/Ucglib/src/Ucglib.cpp:834:3: error: '__NOP' was not declared in this scope
__NOP;
^
The library is not set up to support the Teensy processor....
Looks like this is a known issue: #7 opened on 24 Apr 2017 by Jorgen-VikingGod