Set ext.no_native = true for non mac platform
Set ext.no_native = true for non mac platform

From:
https://github.com/rake-compiler/rake-compiler/issues/146#issuecomment-368539245

google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf