How to Build a Linux Shared Library

main.cpp

// Allows us to reference built-in standard library input/output functions
#include <stdio.h>

// Our function implementation int (return type) main (function name) void (parameter type)
int main(void)
{
  // Use the standard library to print to the terminal window
  puts("Hello Earth!");

  // Exit with a return code 0 indicating success
  return 0;
}