In Swift 4.2 shows warning 'fabs' is deprecated: renamed to 'abs'

I am using the following path for version supporting swift 4.2.

> pod 'SlideMenuControllerSwift', :git => 'https://github.com/Nomad00/SlideMenuControllerSwift.git', :branch => 'swift4.2'

But gets the following warnings on 4 places,

> 'fabs' is deprecated: renamed to 'abs'

