The EXPORTLIBRARY declaration allows a CHANGE procedure to be associated with a regular server library, that is, a library that contains an EXPORT list and a FREEZE statement. The CHANGE procedure is useful for providing linkage and delinkage notification about callers to the library.
<exportlibrary declaration>
── EXPORTLIBRARY ── ( ──<procedure library attribute specification>────► ►─ ) ──────────────────────────────────────────────────────────────────┤
The EXPORTLIBRARY declaration must appear in the same block as the EXPORT list and FREEZE statement for the library.
For EXPORTLIBRARY, the only kind of procedure-valued library attribute name that can be specified is the CHANGE attribute.

