--- doc/manual/en/Makefile.am.orig	2006-05-06 09:13:46.000000000 +0200
+++ doc/manual/en/Makefile.am	2016-02-17 20:51:40.928061000 +0100
@@ -18,24 +18,24 @@
 	$(do_subst) < $(srcdir)/manual-en.sgml > manual-en-sed.sgml
 
 manual-en.pdf : manual-en-sed.sgml
-	db2pdf -s ../stylesheet.dsl manual-en-sed.sgml
+	docbook2pdf -d ../stylesheet.dsl manual-en-sed.sgml
 	mv manual-en-sed.pdf manual-en.pdf
 
 manual-en.ps : manual-en-sed.sgml
-	db2ps -s ../stylesheet.dsl manual-en-sed.sgml
+	docbook2ps -d ../stylesheet.dsl manual-en-sed.sgml
 	mv manual-en-sed.ps manual-en.ps
 
 manual-en.dvi : manual-en-sed.sgml
-	db2dvi -s ../stylesheet.dsl manual-en-sed.sgml
+	docbook2dvi -d ../stylesheet.dsl manual-en-sed.sgml
 	mv manual-en-sed.dvi manual-en.dvi
 
 manual-en.rtf : manual-en-sed.sgml
-	db2rtf -s ../stylesheet.dsl manual-en-sed.sgml
+	docbook2rtf -d ../stylesheet.dsl manual-en-sed.sgml
 	mv manual-en-sed.rtf manual-en.rtf
 
 manual-en.html : manual-en-sed.sgml
-	db2html -u -s ../stylesheet.dsl manual-en-sed.sgml
-	mv manual-en-sed/manual-en-sed.html manual-en.html
+	docbook2html -u manual-en-sed.sgml
+	mv manual-en-sed.html manual-en.html
 	rm -rf manual-en-sed
 	rm -rf manual-en-sed.junk