Add guards against bswap_XX redefnitions
Add guards against bswap_XX redefnitions

Signed-off-by: Oskar Świtalski <3fce834d7ade7c03fdcd2b3f24fce2a8fa79bf5f@indoorway.com>

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