--- configure.orig	2021-05-15 12:08:28 UTC
+++ configure
@@ -1521,8 +1521,8 @@ Optional Features:
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
   --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
-  --with-mdds=1.5|1.4|1.2|1.0|0.x
-                          Specify which version of mdds to use (1.5 is the
+  --with-mdds=2.1|2.0|1.7|1.5|1.4|1.2|1.0|0.x
+                          Specify which version of mdds to use (2.1 is the
                           default)
   --with-pic[=PKGS]       try to use only PIC/non-PIC objects [default=use
                           both]
@@ -3178,7 +3178,7 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 if test "${with_mdds+set}" = set; then :
   withval=$with_mdds;
 else
-  with_mdds="1.5"
+  with_mdds="2.1"
 fi