libobjc/objc-private/README - gcc - Git at Google

 This directory contains headers that are private to the runtime and
 that are only included while the runtime is being compiled.  They are
 not installed, so developers using the library can't actually even see
 them.
	This directory contains headers that are private to the runtime and
	that are only included while the runtime is being compiled. They are
	not installed, so developers using the library can't actually even see
	them.