If I cross compile a program using let's say the boost library, since it has nothing in the bin folder. Even if boost is not installed in Raspberry Pi, the executable file alone can run in Rpi? In libraries such as PCL which contains binaries, Raspberry Pi should have these binaries too in order to run?

Regarding the latter part of your answer, I just want to confirm my understanding. Do you mean that I would be linking my project to the root of the pi (where the installed <lib packages>) are installed and I can now cross compile?

Thank you very much. Do the .dll files fall under the category of bin? Is the difference of the bin and lib that the bin contains the executable files while the lib contains the object files?

Does sudo apt-get install <library-package> downloads and install prebuilt binaries?