Index: Externals/Eagle/lib/Test1.0/constraints.eagle
==================================================================
--- Externals/Eagle/lib/Test1.0/constraints.eagle
+++ Externals/Eagle/lib/Test1.0/constraints.eagle
@@ -2590,11 +2590,14 @@
                 $name . [join [lrange [split $version .] 0 1] .]]
           } else {
             set nativeUtility $name
           }
 
-          addConstraint nativeUtility
+          if {$nativeUtility ni "disabled unavailable"} then {
+            addConstraint nativeUtility
+          }
+
           addConstraint [appendArgs nativeUtility. $nativeUtility]
 
           tputs $channel [appendArgs $::eagle_platform(nativeUtility) \
               " " ( $nativeUtility ) \n]
         } else {