Jeffrey Holle <jeff.holle@xxxxxxxxxxx> writes: > Examples of the specific linker errors that are troubling me: > > /usr/local/lib/libboost_python.so.1.31.0: undefined reference to > `PySequence_DelSlice' > /usr/local/lib/libboost_python.so.1.31.0: undefined reference to > `PyNumber_InPlaceXor' > ../cppTest/libUMLModel.so: undefined reference to `PyInt_FromLong' Where are those symbols defined on your system? If they are defined in, e.g, /usr/lib/libpython.so.*, have you tried adding -lpython to your link command? What is the output of objdump -p /usr/local/lib/libboost_python.so.1.31.0 ? Ian