+AC_ARG_ENABLE([cd-updates-url],
+ [AS_HELP_STRING([--enable-cd-updates-url],
+ [set download URL for package updates])],
+ [CD_UPDATES_URL=$enableval],
+ [CD_UPDATES_URL=http://download.fedora.redhat.com/pub/fedora/linux/updates/$CD_BASE/$CD_ARCH/])