default_pre_build     &&
cd $SOURCE_DIRECTORY  &&
sedit 's#^PREFIX=/usr/local#PREFIX=/usr#' system.mk              &&
sedit 's#^LUA_DIR=/usr/local#LUA_DIR=/usr#' system.mk            &&
sedit 's#^ETCDIR=$(PREFIX)/etc/ion3#ETCDIR=/etc/ion3#' system.mk &&
sedit 's#^PREFIX=/usr/local#PREFIX=/usr#' build/system-inc.mk    &&
sedit 's#/usr/local#/usr#' libextl/libextl-mkexports.in
