AC_CHECK_LIB([cdb], [cdb_seek], [have_cdb=yes], [have_cdb=no])
AM_CONDITIONAL([HAVE_LIBCDB], [test $have_cdb = yes])
-AC_CHECK_LIB([spamc], [message_filter], [have_spamc=yes], [have_spamc=no])
-AM_CONDITIONAL([HAVE_LIBSPAMC], [test $have_spamc = yes])
-
## Packages.
PKG_CHECK_MODULES([mLib], [mLib >= 2.0.4], [have_mLib=yes], [have_mLib=no])
AM_CONDITIONAL([HAVE_MLIB], [test $have_mLib = yes])