+dnl ------ memcached
+memcached=default
+AC_ARG_WITH([memcached], [ --with-memcached Memcached library], [memcached=$withval])
+if test "$memcached" != "no"; then
+ AC_CHECK_LIB([memcached],[memcached_get])
+ if test "$ac_cv_lib_memcached_memcached_get" = "yes"; then
+ AC_CHECK_HEADERS([libmemcached/memcached.h])
+ fi
+fi