Well this is interesting! >> make -j$(($(getconf _NPROCESSORS_ONLN)+1)) > > Not really a good idea as it may break on users who have many cores make ${MAKEFLAGS:-${NUMJOBS:-j2}} or, for shits and giggles, make ${MAKEFLAGS:-${NUMJOBS:-j$(($(getconf _NPROCESSORS_ONLN)+1))}} (Thanks Johannes, I didn't know about getconf!) -D.