Include of non-modular header inside framework module 'ctermbox':

[amadeu01]

I tried to import the library with SPM, but I got an error of non-modular header inside the framework.
The strangest thing of all is: It compiles with swift run on the terminal, but it does not compile with Xcode, which leads me to some kind of issue with Xcode beta, but I couldn't figure it out yet. So, I'm reporting the issue here, in case you have faced it before.

Note: I'm using the Xcode beta 5

[amadeu01]

I tried to use Allow non-modular includes in framework modules for the Termbox framework inside the Xcode project, but it didn't work :(