cd /usr/ports/databases/postgresql${PSQLOLDVERSION}-server/ && make clean
cd /usr/ports/databases/postgresql${PSQLOLDVERSION}-client/ && make clean
cd /usr/ports/databases/postgresql${PSQLOLDVERSION}-contrib/ && make clean

cd /usr/ports/databases/postgresql${PSQLNEWVERSION}-server/ && make clean
cd /usr/ports/databases/postgresql${PSQLNEWVERSION}-client/ && make clean
cd /usr/ports/databases/postgresql${PSQLNEWVERSION}-contrib/ && make clean