Hi,
Since the Tiva 2.x is used, it is wise to include both lines specified because you don't know what peripherals/functions are used - ( at least does not harm) which will require boolean definitions also.
One problem with the path: this one must be specified in compiler's include path properties:
\ti\TivaWare_C_Series-2.0.1.11577
and then all other includes will be as designed by TI ( i.e. #include "inc/hw_xxx.h" or similar).
Petrei