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Status Is a defect
Created by Guest
Created on Jan 1, 2022

CMQC.h on z/OS should support 64 bit control blocks

The CMQC on z/OS has


On midrange the header file has

#if defined(MQ_64_BIT)





If I compile an MQOD with 31 bit compiler the length is 400

If I use the LP64 option, for 64 bit... the MQOD is 424 - not 400, so I cannot use this MQOD_CURRENT_LENGTH field.

This applies to other control blocks as well.

the z/OS version needs something like

#ifdef _LP64





Idea priority Medium
  • Admin
    Mark Taylor
    Mar 8, 2022

    This looks to be a defect that will be corrected in a future update