+###--------------------------------------------------------------------------
+### Maintenance rules.
+
+fixup-wordlist:
+ { IFS= read -r hdr && echo "$$hdr" && \
+ LC_COLLATE=POSIX sort -f; \
+ } <$(srcdir)/sod.words >$(srcdir)/sod.words.new && \
+ mv $(srcdir)/sod.words.new $(srcdir)/sod.words
+.PHONY: fixup-wordlist
+
+update-symbols:
+ $(ASDF_ENV) $(RUNLISP) -L$(WORKING_LISPS) $(srcdir)/list-exports \
+ >$(srcdir)/SYMBOLS.new && \
+ mv $(srcdir)/SYMBOLS.new $(srcdir)/SYMBOLS
+.PHONY: update-symbols
+
+check-manual: update-symbols sod.pdf
+ $(srcdir)/check-docs sod.aux $(srcdir)/SYMBOLS
+.PHONY: check-manual
+