I have a console app which I want to compile for Linux.

I don’t have access to a Linux operating system at the moment, but I really do need to compile this program for as many operating systems as possible.

I do have a basic idea of what Linuxes are and that they have different bases, but I have no idea on how to compile for them.
And I have made this C++ application on Code::Blocks, so I would like to know how to compile for Linux.
The easiest way or better say the most efficient.

I want to compile the program for both RPM- and Debian-based Linux.