+AC_ARG_ENABLE(strptime-sanity-checks,
+[ --enable-strptime-sanity-checks Only trust strptime() results if an additional strftime()/strptime()
+ conversion doesn't change the result. Can be useful if strptime() is
+ known or suspected to be broken.],
+[if test $enableval = yes; then
+ AC_DEFINE(FEATURE_STRPTIME_SANITY_CHECKS)
+fi])
+
+FEATURE_CLIENT_TAGS_ONLY="#"
+AC_ARG_ENABLE(client-tags,
+[ --enable-client-tags Enable client-specific tags],
+[if test $enableval = yes; then
+ FEATURE_CLIENT_TAGS_ONLY=""
+ AC_DEFINE(FEATURE_CLIENT_TAGS,1,[Define to enable client-specific tags.])
+fi])
+AC_SUBST(FEATURE_CLIENT_TAGS_ONLY)
+