html file generation from sgml

Build install.tgz documentation when DOCBOOK_DSL is defined, as
advertised by the comments.
Clean up unused html/dist/man targets
new clean-local target to remove tmp & html files

configure.in

@@ -181,6 +181,8 @@ fi
 
 AM_CONDITIONAL(ENABLE_GTK_DOC, test x$enable_gtk_doc = xyes)
 
+AM_CONDITIONAL(ENABLE_DOCBOOK, test -n "$DOCBOOK_DSL")
+
 dnl Checks for library functions.
 VL_LIB_READLINE
 

doc/Makefile.am

@@ -1,36 +1,37 @@
-# Converting DocBook to HTML (several small files)
-# http://www.freebsd.org/tutorials/docproj-primer/x3132.html#AEN3140
 SHELL = /bin/sh
 TXT2MAN = txt2man
 PRODUCT = MDBTools
 
+# To make the userguide, export DOCBOOK_DSL TO point to docbook.dsl.
+
 dist_man_MANS	= mdb-tables.1 mdb-ver.1 mdb-export.1 mdb-schema.1 mdb-sql.1 \
 	mdb-array.1 mdb-header.1 mdb-hexdump.1 mdb-parsecsv.1 mdb-prop.1 gmdb2.1
+if ENABLE_DOCBOOK
+  dist_man_MANS += install.tgz
+endif
 DISTCLEANFILES = ${dist_man_MANS}
-EXTRA_DIST	= mdb-tables.txt mdb-ver.txt mdb-export.txt mdb-schema.txt mdb-sql.txt faq.html txt2man install.sgml
+EXTRA_DIST	= mdb-tables.txt mdb-ver.txt mdb-export.txt mdb-schema.txt mdb-sql.txt \
+	mdb-array.txt mdb-header.txt mdb-hexdump.txt mdb-parsecsv.txt mdb-prop.txt gmdb2.txt \
+	faq.html install.sgml
 
-html:	install.tgz
-
-dist:	install.tgz man 
-#dist:	man 
-
-# To make the userguide, export DOCBOOK_DSL TO point to docbook.dsl.
+.txt.1:
+	- $(TXT2MAN) -P $(PRODUCT) -t $(PRODUCT) -r $(VERSION) -s 1 $(srcdir)/$< > $@
 
+# Converting DocBook to HTML (several small files)
+# http://www.freebsd.org/tutorials/docproj-primer/x3132.html#AEN3140
 install.tgz: $(srcdir)/install.sgml
-	if test -n "${DOCBOOK_DSL}"; then \
-	        rm -rf html && \
-	        mkdir html && \
-	        cd html && pwd && \
-	        openjade -d ${DOCBOOK_DSL} -t sgml ../$(srcdir)/install.sgml; \
-	        test -f book1.htm && \
-	        ln -s book1.htm index.html && cd .. && \
-	        if ! [ -L userguide ]; then \
-	                ln -s html install; \
-	        fi; \
-	        tar zcf install.tgz install/* \
-	; fi
+	rm -rf html && \
+	mkdir html && \
+	cd html && \
+	openjade -d ${DOCBOOK_DSL} -t sgml ../$(srcdir)/install.sgml; \
+	test -f book1.htm && \
+	ln -s book1.htm index.html && \
+	cd .. && \
+	if ! [ -L userguide ]; then \
+	        ln -s html install; \
+	fi ; \
+	tar zcf install.tgz install/*
 
-man:	mdb-tables.1 mdb-ver.1 mdb-export.1 mdb-sql.1
-
-.txt.1:
-	- $(TXT2MAN) -P $(PRODUCT) -t $(PRODUCT) -r $(VERSION) -s 1 $(srcdir)/$< > $@
+clean-local:
+	-rm -rf html
+	-rm -f install