g++ undefined reference although symbol is present in *.so file

Question

I found a number of similar questions (e.g. this, that or this), but none of them helped me solve my problem. I have a *.so file (from the core of gnss-sdr) that, as indicat

Answer 1

I have found in the past that this type of error is caused by the lack of proper extern "C" { ... } bracketing in an include file.