$NetBSD$

--- Makefile.in.orig	2005-05-18 23:15:52.000000000 +0200
+++ Makefile.in
@@ -220,7 +220,7 @@ includedir =	$(prefix)/include
 datadir = 	$(prefix)/share/vis
 
 # Directory for the man page
-mandir = $(prefix)/man/man1
+mandir = @mandir@/man1
 
 #----------------------------------------------------------------------
 # The following are set by the configure script
