Now I know this means I need to add my include path somewhere. So I have gone to properties, C/C++ General, Paths and Symbols, GNU C++ and then I have added /usr/include/c++/4.8 (to debug and release), but intellisense still cant detect and it the project doesn't build.
Is my include path the correct one for a standard default installation on Linux and did I enter it in the correct Eclipse setting?
This is on Linux Mint 16 and Eclipse Kepler.