This is not strictly a Linux Audio question, but I encountered this matter in the context of writing LADSPA plugins, so... Imagine you have a C++ class S which has some static data. Derive A from S and use A to create a plugin a.so Derive B from S and use B to create a plugin b.so When a host links (at runtime) with both a.so and b.so, then the static data from S will be created twice (I verified this to be the case). This is what I expected, but it may shock C++ purists, so my question now is this: Is this the 'official' behaviour when loading plugins, or is this something that could change with future version of g++ and the DL libs ? Fons