ADDED   mttroot/mtt/lib/rep/odes_rep.make
Index: mttroot/mtt/lib/rep/odes_rep.make
==================================================================
--- mttroot/mtt/lib/rep/odes_rep.make
+++ mttroot/mtt/lib/rep/odes_rep.make
@@ -0,0 +1,13 @@
+# -*-makefile-*-
+
+all: ${MTT_SYS}_odes.${MTT_LANG}
+
+${MTT_SYS}_odes.gnuplot:
+	@mtt -q ${MTT_OPT} ${MTT_SYS} gnuplot view
+
+ifneq ("${MTT_LANG}","gnuplot")
+${MTT_SYS}_odes.${MTT_LANG}:
+	@touch odes_rep.make.ignore
+	@mtt -q ${MTT_OPT} ${MTT_SYS} odes ${MTT_LANG}
+	@rm odes_rep.make.ignore
+endif