Use gz functions already for 1.2.7 zlib
Use gz functions already for 1.2.7 zlib

ferseiti/genwqe-user,ferseiti/genwqe-user,tblume/genwqe-user,ibm-genwqe/genwqe-user,tblume/genwqe-user,ibm-genwqe/genwqe-user,ibm-genwqe/genwqe-user