+AC_DEFINE([HAVE_LIBDRIZZLE], [0], [Support for libdrizzle])
+AC_DEFINE([HAVE_DRIZZLED_BINARY], [0], [Support for DrizzleD])
+AC_DEFINE([GEARMAND_BLOBSLAP_WORKER], [0], [Support for Gearman Blobslap worker])
+AC_DEFINE([HAVE_LIBPQ], [0], [Support for Postgres])
+AC_DEFINE([HAVE_LIBCURL], [0], [Support for libcurl])
+
+AC_DEFINE([HAVE_MEMCACHED_LIGHT_BINARY], [1], [Support for memcached_light])
+AC_DEFINE([MEMCACHED_LIGHT_BINARY], ["example/memcached_light"], [Support for memcached_light])
+