Successfully pass VS 2008 compilation with 2 minor change in source code :

1/
at mongo-c-driver-1.1.0\src\mongoc\mongoc-database.c, l. 688 :
variable 'bson_string_t *buf' shall be defined at the begin of _mongoc_database_get_collection_info_legacy function since we compile C only code.

2/
at mongo-c-driver-1.1.0\build\cmake\libmongoc.def, l.144 to l.146 :
mongoc_rand_add,
mongoc_rand_seed and
mongoc_rand_status
symbols shall be removed (since no related C symbols seems to be found)
Keeping this symbol prevent link phase to succeed.