$NetBSD: patch-ac,v 1.2 2006/01/10 15:37:39 joerg Exp $

--- Docs/makefile.in.orig	2001-05-30 16:43:16.000000000 +0000
+++ Docs/makefile.in
@@ -65,7 +65,7 @@ VERSION = @VERSION@
 man_MANS = robodoc.1
 MAINTAINERCLEANFILES = robodoc.html stoc.html stoc.m4
 
-docdir = $(prefix)/doc/$(PACKAGE)-$(VERSION)
+docdir = $(datadir)/doc/html/$(PACKAGE)-$(VERSION)
 doc_DATA = main.css robodoc.html
 
 #
@@ -76,7 +76,7 @@ doc_DATA = main.css robodoc.html
 # Create the documentation in HTML format
 #
 
-M4 = /usr/bin/m4
+M4 = @M4@
 mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
 CONFIG_HEADER = ../Source/config.h
 CONFIG_CLEAN_FILES =