[General] "Static if LIBRARY_<name>" : is there an equivalent to test presence of GUI system/variable ?

[Ricola3D]

Hello,

I know of "static if" followed by one or more constant booleans, and that when a vJass library is present in the map, a constant global boolean LIBRARY_<name> is created.

Is there an equivalent to detect the presence of a GUI system ? Or there isn't, and the only option is to create a config const boolean yourself and ask the users to set it to true or false if they use the system ?

Sincerely,

Ricola3D