merlimat commented on PR #15442:
URL: https://github.com/apache/pulsar/pull/15442#issuecomment-1119098807

   > I think we should still keep the regular protobuf version to support 
protobuf native schema. The lite version doesn't support serializing to or from 
`google::protobuf::Descriptor`.
   
   Uhm, I think there's a problem with the way the descriptor is currently 
exposed. In the dynamic library, we're generally including all the 
dependencies, in order to create a dependency-less libpulsar.so. All the 
symbols of the dependencies are hidden inside, to avoid conflict with other 
versions of same libraries. 
   
   I believe that in many cases, this would not be working: 
   
   ```cpp
   PULSAR_PUBLIC SchemaInfo createProtobufNativeSchema(const 
google::protobuf::Descriptor* descriptor);
   ```
   
   because the `Descriptor` symbol is hidden and not accessible from the 
application code.


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