Compiler Option?

In a real world environment where code changes hands between different developers and departments are programmers forced to write with the same compiler? I would think that could be the only way to exchange code.

Has this been a problem for some of you in your first job?

If you really want to exchange code between different systems use ANSI/POSIX C/C++.
Every compiler should have a switch to force ANSI spell checking.
If you use system dependent functions, wrap them like:

// os_win32.cpp
#include <windows.h>
void os_sleep_sec( int sec) { Sleep( sec*1000); }