POSTIN
/bin/sh
/usr/sbin/update-alternatives --install /usr/bin/lua lua /usr/bin/lua5.3 53 --slave /usr/bin/luac luac /usr/bin/luac5.3
POSTUN
/bin/sh
[[ -f /usr/bin/lua5.3 ]] || /usr/sbin/update-alternatives --remove lua /usr/bin/lua5.3
/bin/sh
/usr/sbin/update-alternatives --install /usr/bin/lua lua /usr/bin/lua5.3 53 --slave /usr/bin/luac luac /usr/bin/luac5.3
/bin/sh
[[ -f /usr/bin/lua5.3 ]] || /usr/sbin/update-alternatives --remove lua /usr/bin/lua5.3