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

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