Discussion with upstream suggests that perl, pdl, and libpdl-io-hdf5-perl need to be built with the same GCC version to resolve this issue. Kind Regards, Bas -- GPG Key ID: 4096R/6750F10AE88D4AF1 Fingerprint: 8182 DE41 7056 408D 6146 50D1 6750 F10A E88D 4AF1