PDF_FILES = $(TEXINFO_MANUALS:%=$(outdir)/%.pdf)
TOPDIR_HTML_MANUALS = general
-UNSPLITTED_HTML_MANUALS = changes
+UNSPLITTED_HTML_MANUALS =
SPLITTED_HTML_MANUALS = $(foreach manual, $(TEXINFO_MANUALS),\
$(if $(findstring $(manual), $(UNSPLITTED_HTML_MANUALS)),,$(manual)))
NOT_TOPDIR_HTML_MANUALS = $(foreach manual, $(SPLITTED_HTML_MANUALS),\