title: Promoting integers to 8 bytes including those with explicit declaration using IBM xlf compiler
body: <p>When I use gfortran the flag -finteger-4-integer-8 does the job. </p>
  
  <p>However, I'm looking for xlf's equivalent flag, -qintsize=8 is the equivalent of -fdefault-integer-8, but I haven't been able to find -finteger-4-integer-8's analog.</p>