-# this hint is for adding a link to the pdf version
-add_pdf_link := patch -p0 < add_pdf_link.diff
-remove_pdf_link := patch -p0 -R < add_pdf_link.diff
+htmllink := echo "<!entity % htmltext \"INCLUDE\">" > dynamic.ent
+nohtmllink := echo "<!entity % htmltext \"IGNORE\">" > dynamic.ent