packaging/deb-in/xdevapi.postinst.in (10 lines of code) (raw):
#! /bin/sh
set -e
cd @LIB_DIR@
# Do nothing if old name is already present
test -e libmysqlcppconn8.so.2 && return 0
# Also skip compatibility link if the target library is not present
# (e.g, the ABI version has changed)
test -e libmysqlcppconnx.so.2 || return 0
#echo "Creating compatibility link: ${LIBDIR}/libmysqlcppconn8.so.2"
ln -s libmysqlcppconnx.so.2 libmysqlcppconn8.so.2