fix compile error on non-apple platforms.
fix compile error on non-apple platforms.

iamrekcah/clay,iamrekcah/clay,jckarter/clay,aep/clay,jckarter/clay,jckarter/clay,aep/clay,aep/clay,iamrekcah/clay,mario-campos/clay,iamrekcah/clay,mario-campos/clay,mario-campos/clay,jckarter/clay,aep/clay,mario-campos/clay,iamrekcah/clay,aep/clay,jckarter/clay,jckarter/clay,aep/clay,mario-campos/clay