- #(nobug) - Add compilation-argument import support for -mfcu option

- #(enh) - During compilation-argument import, add support for executing
  the commands being intercepted by the compiler wrappers. Sometimes a
  compilation failure causes the entire process to terminate early.
Merge pull request #295 from mballance-sf/master

- #(nobug) - Add compilation-argument import support for -mfcu option