+AC_ARG_ENABLE(client-tags,
+[ --disable-client-tags Disable support for client-specific tags],
+[ if test $enableval = "no"; then have_client_tags=no; fi ])
+if test "${have_client_tags}" = "no"; then
+ echo "Disabling support for client-specific tags."
+ FEATURE_CLIENT_TAGS_ONLY="#"
+else
+ echo "Enabling support for client-specific tags."
+ AC_DEFINE(FEATURE_CLIENT_TAGS,1,[Define to enable support for client-specific tags.])
+ FEATURE_CLIENT_TAGS_ONLY=""
+fi
+AC_SUBST(FEATURE_CLIENT_TAGS_ONLY)
+