FIX: compile on older compilers
FIX: compile on older compilers

djw8605/cvmfs,Gangbiao/cvmfs,DrDaveD/cvmfs,reneme/cvmfs,DrDaveD/cvmfs,trshaffer/cvmfs,reneme/cvmfs,djw8605/cvmfs,cvmfs/cvmfs,djw8605/cvmfs,cvmfs/cvmfs,Gangbiao/cvmfs,DrDaveD/cvmfs,trshaffer/cvmfs,alhowaidi/cvmfsNDN,alhowaidi/cvmfsNDN,reneme/cvmfs,DrDaveD/cvmfs,Gangbiao/cvmfs,DrDaveD/cvmfs,alhowaidi/cvmfsNDN,reneme/cvmfs,reneme/cvmfs,cvmfs/cvmfs,cvmfs/cvmfs,Gangbiao/cvmfs,cvmfs/cvmfs,trshaffer/cvmfs,Gangbiao/cvmfs,alhowaidi/cvmfsNDN,DrDaveD/cvmfs,alhowaidi/cvmfsNDN,trshaffer/cvmfs,djw8605/cvmfs,djw8605/cvmfs,trshaffer/cvmfs,cvmfs/cvmfs,cvmfs/cvmfs,DrDaveD/cvmfs