Add stubs for generic::select_system.
Add stubs for generic::select_system.

malenie/thrust,levendlee/thrust,hemmingway/thrust,google-code-export/thrust,levendlee/thrust,bfurtaw/thrust,Vishwa07/thrust,julianromera/thrust,julianromera/thrust,hemmingway/thrust,lishi0927/thrust,UIKit0/thrust,h1arshad/thrust,julianromera/thrust,rdmenezes/thrust,Vishwa07/thrust,h1arshad/thrust,hemmingway/thrust,allendaicool/thrust,malenie/thrust,lishi0927/thrust,allendaicool/thrust,malenie/thrust,bfurtaw/thrust,google-code-export/thrust,lishi0927/thrust,rdmenezes/thrust,UIKit0/thrust,malenie/thrust,Vishwa07/thrust,allendaicool/thrust,Vishwa07/thrust,levendlee/thrust,levendlee/thrust,bfurtaw/thrust,allendaicool/thrust,bfurtaw/thrust,google-code-export/thrust,julianromera/thrust,UIKit0/thrust,lishi0927/thrust,h1arshad/thrust,h1arshad/thrust,UIKit0/thrust,rdmenezes/thrust,google-code-export/thrust,rdmenezes/thrust,hemmingway/thrust