objectivec-descriptor.proto incorrect import

[lolgear]

I solved my previous issue with options #83 ( with @E-B-Smith help, big thanks! ).
But, however, I want to know something.

( Bug of feature? )

In objectivec-descriptor.proto we have import statement:
import "google/protobuf/descriptor.proto";

In example we have another import statement.
import "objectivec-descriptor.proto";

For satisfying all conditions you need this compiler invocation:

protoc --plugin=/usr/local/bin/protoc-gen-objc --proto_path="path_to/protobuf-objc/src/compiler/" --proto_path="path_to/protobuf-objc/src/compiler/google/protobuf/" --proto_path='./' pony.proto --objc_out="./"

Or in descriptive version:

protoc   --plugin=/usr/local/bin/protoc-gen-objc
--proto_path="path_to/protobuf-objc/src/compiler/"
--proto_path="path_to/protobuf-objc/src/compiler/google/protobuf/"
--proto_path='./'
pony.proto 
--objc_out="./"

Maybe it is better to change google/protobuf/descriptor.proto to descriptor.proto?

Or it is much better to leave only one proto_path from protobuf ( top path )?

--proto_path="path_to/protobuf-objc/src/compiler/"

And all statements will be relative to this path.
google/protobuf/objectivec-descriptor.proto and google/protobuf/descriptor.proto