title: osx sys/io.h not found
body: <p>I'd like to compile a c programm developed for linux using cc under os x.
  It includes the header sys/io.h.
  When compiling I get the error that this file could not be found?
  Isn't there any sys/io.h header file under os x?</p>
  
  <p>Any help would be really appreciated!</p>
  
  <p>Thanks!</p>