Otherwise it errors with, "cannot initialize a variable of type 'BOOL' (aka 'signed char') with an rvalue of type 'id _Nullable'." This doesn't seem like it should be necessary.
Mapbox iOS SDK
A library based on Mapbox GL Native for embedding interactive map views with scalable, customizable vector maps into Cocoa Touch applications on iOS 8.0 and above using Objective-C, Swift, or Interface Builder.
This repository is for day-to-day development of the SDK. Building the SDK yourself requires a number of dependencies and steps that are unnecessary for developing production applications. For production applications, please consider installing an official, prebuilt release instead; see the Mapbox iOS SDK website for installation instructions.
