--- Makefile.in.orig	Sat Feb  2 22:40:39 2013
+++ Makefile.in	Tue Jun 14 19:33:34 2016
@@ -93,7 +93,12 @@
 
 
 $(CURSES_CMA) $(CURSES_CMXA) .stamp_built_curses:
+ifeq ($(OCAMLBEST),opt)
 	$(MAKE) -C curses byte opt && touch .stamp_built_curses
+else
+	$(MAKE) -C curses byte && touch .stamp_built_curses
+endif
+
 
 $(CMO) $(CMX): .stamp_built_curses
 
