It looks like compilation of 32 bit platforms is failing due to a missing field.  It looks to me that for some reason r26626 deleted hdr_segkey in ompi/mca/osc/rdma/osc_rdma_header.h which is used in the macro OMPI_OSC_RDMA_RDMA_INFO_HDR_NTOH and HTON.  Is there a reason that hdr_segkey was removed, if so more changes are needed.

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Terry D. Dontje | Principal Software Engineer
Developer Tools Engineering | +1.781.442.2631
Oracle - Performance Technologies
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Email terry.dontje@oracle.com