SMP/E determines, from the candidate list of load modules to be relinked, which load modules have CALLLIBS subentries, but do not have XZMOD subentries. For each such load module:

• If the set-to zone has an UPGLEVEL subentry, SMP/E rebuilds the load module from scratch and relinks it. SMP/E deletes the base version from the SMPLTS data set, if one exists.
• If the set-to zone does not have an UPGLEVEL subentry, SMP/E relinks the base version found in the SMPLTS, if one exists. If the base version is not found in SMPLTS, SMP/E rebuilds the load module from scratch and relinks it. SMP/E saves a copy of the rebuilt load module in SMPLTS.