--- a/Makefile.in	2014-07-30 14:16:57.989859205 +0200
+++ b/Makefile.in	2014-07-30 14:16:52.133836316 +0200
@@ -26,7 +26,11 @@
 # '-Rr' to MAKEFLAGS adds it literaly ( and does not add 'Rr' )
 ifeq ($(filter Rr,$(MAKEFLAGS)),)
 ifeq ($(filter -Rr,$(MAKEFLAGS)),)
+ifeq ($(filter -rR,$(MAKEFLAGS)),)
+ifeq ($(filter rR,$(MAKEFLAGS)),)
 CT_MAKEFLAGS += -Rr
+endif # No rR
+endif # No -rR
 endif # No -Rr
 endif # No Rr