PREIN

/bin/sh

if [ $1 -gt 1 ]
then
   if [ ! -d /usr/lib64/pgsql/backup ]; then
       mkdir -p /usr/lib64/pgsql/backup > /dev/null
   fi
   pushd /usr/lib64 > /dev/null
   cp -fp libpq.* /usr/lib64/pgsql/backup > /dev/null
   popd > /dev/null
fi