Index: contrib/amd/amd/amd.c
===================================================================
--- contrib/amd/amd/amd.c
+++ contrib/amd/amd/amd.c
@@ -414,6 +414,8 @@
     progname = "amd";
   am_set_progname(progname);
 
+  plog(XLOG_WARNING, "built-in amd in FreeBSD is deprecated and will be removed before FreeBSD 13");
+
   /*
    * Initialize process id.  This is kept
    * cached since it is used for generating