title: Would GCC 4.8 and 4.7 Peacefully Coexist on the Same Machine?
body: <p>Would installations of gcc 4.7 and 4.8 peacefully coexist on the same machine? This would initially be a machine with Ubuntu 12.10 (Quantal Quetzal) but may extend it to other machines   and distributions later, possibly even my mac (it would be 4.8 and the last supplied apple gcc on Mountain Lion). I am trying to test gcc's improved diagnostics in 4.8 comparing them to clang's, hence my need for gcc 4.8.</p>
  
  <p>How do you invoke each installation of gcc if the answer to the above is yes?</p>