Build check if necessary

RHEL5 provides an older version of check than we need.  We have a git
clone of the latest check, which includes a Buzzy package description,
so that we can satisfy the dependency with a built package on RHEL5.
Remove strict-aliasing warnings on RHEL5
Merge branch 'feature/rhel5' into develop

* feature/rhel5:
  Remove strict-aliasing warnings on RHEL5
  Build check if necessary