This ticket tracks the backport of CXX-1226. Original description for CXX-1226:

As of the upcoming 1.7.0 libbson release, bson_as_json() is being deprecated by the introduction of bson_as_extended_json(). See related ticket CDRIVER-1947.

We should disable this deprecation warning via CXX-1056.

Example of the output being generated by this warning:

[2017/02/22 18:53:36.239] /data/mci/b73b54737441c65057f5e95736a1bde9/mongo-cxx-driver/src/bsoncxx/json.cpp:52:19: error: 'bson_as_json' is deprecated [-Werror,-Wdeprecated-declarations]
[2017/02/22 18:53:36.239]     auto result = bson_as_json(&bson, &size);
[2017/02/22 18:53:36.239]                   ^
[2017/02/22 18:53:36.239] /data/mci/b73b54737441c65057f5e95736a1bde9/mongo-cxx-driver/../mongoc/include/libbson-1.0/bson.h:508:1: note: 'bson_as_json' has been explicitly marked deprecated here
[2017/02/22 18:53:36.239] bson_as_json (const bson_t *bson, size_t *length)
[2017/02/22 18:53:36.239] ^
[2017/02/22 18:53:36.268] 1 error generated.