# HTML output goes in a subdirectory on its own.
SGML_TEXT = $(addsuffix .txt,$(SGML_DOC))
-$(SGML_DVI) $(SGML_PS) $(SGML_HTML) $(SGML_TEXT) :: $(SGML_SRCS)
+$(SGML_DVI) $(SGML_PS) $(SGML_HTML) $(SGML_TEXT) $(SGML_PDF) :: $(SGML_SRCS)
dvi :: $(SGML_DVI)
ps :: $(SGML_PS)