diff -ruN a/Documentation/Makefile b/Documentation/Makefile
--- a/Documentation/Makefile 2021-12-20 03:09:42.000000000 +0100
+++ b/Documentation/Makefile 2021-12-20 16:24:43.651313119 +0100
@@ -13,8 +13,6 @@
_MAN_HTML=$(patsubst %.txt,%.html,$(MAN_TXT))
_DOC_MAN3=$(patsubst %.txt,%.m,$(MAN3_TXT))
-OUTPUT := $(obj)/Documentation/
-
MAN_XML=$(addprefix $(OUTPUT),$(_MAN_XML))
MAN_HTML=$(addprefix $(OUTPUT),$(_MAN_HTML))
DOC_MAN3=$(addprefix $(OUTPUT),$(_DOC_MAN3))