utils/gn/build/libs/zlib/enable.gni - llvm - Git at Google

 declare_args() {
   # Whether to include code that links against zlib.
   llvm_enable_zlib = host_os != "win"
 }
	declare_args() {
	# Whether to include code that links against zlib.
	llvm_enable_zlib = host_os != "win"
	}