Index: configure.ac
===================================================================
--- configure.ac.orig
+++ configure.ac
@@ -11999,6 +11999,12 @@ if test "$no_parallelism_make" = "YES" &
     fi
 fi
 
+if test $PARALLELISM -gt 64 ; then
+        AC_MSG_WARN([dmake does not work with more than 64 jobs, reducing parallelism to 64.])
+        add_warning "dmake does not work with more than 64 jobs, reducing parallelism to 64."
+        PARALLELISM="64"
+fi
+
 AC_MSG_RESULT([$PARALLELISM])
 AC_SUBST(PARALLELISM)