Installing the correct version of a C/C++library

Often a library will have a seperate install for C or C++ and you need to install the correct one!  Sounds obvious but with so many libraries having poor documentation this can be a simple thing that consfuses the hell out of you.  Take for instance the libconfig library:

The C Version

Installing

sudo apt-get install libconfig-dev

Using

#include <libconfig.h>			//This library needs the "-lconfig" adding to Project Properties > Build > Linker > Libraries

The C++ Version

Installing  

sudo apt-get install libconfig++-dev		//<<<<NOTICE THE DIFFERENT LIBRARY NAME!

Using

#include <libconfig.h++>			//This library needs the "-lconfig++" adding to Project Properties > Build > Linker > Libraries
using namespace libconfig;