(ITS#7191) libmdb: Alignment of MDB_db members

[roy.keene@us.army.mil]

Full_Name: Roy Keene
Version: 2.4.30
OS: Solaris 10
URL: ftp://ftp.openldap.org/incoming/openldap-2.4.30-mdb-alignment-1rsk.diff
Submission from: (NULL) (140.194.193.14)


Several members of the MDB_db members are not aligned in the "db" or "mx->mx_db"
objects.  This causes a SIGBUS upon assignment.

Breaking the assignment into an assignment of its members and using the existing
COPY_PGNO() alleviates this fault.

Patch attached is a naive approach.