--- doc/Makefile.in.orig	2006-02-07 04:06:14.000000000 +0900
+++ doc/Makefile.in	2009-07-08 16:30:38.000000000 +0900
@@ -22,7 +22,7 @@
 
 prefix=@prefix@
 mandir=$(DESTDIR)@mandir@
-docdir=$(DESTDIR)${prefix}/doc/wwwoffle
+docdir=$(DESTDIR)@docdir@
 
 SPOOLDIR=@SPOOLDIR@
 CONFDIR=@CONFDIR@