-MJOTEX += mjo-font.tex mjo-linear_algebra.tex mjo-listing.tex mjo-misc.tex
-MJOTEX += mjo-proof_by_cases.tex mjo-theorem.tex mjo-theorem-star.tex
-MJOTEX += mjo-topology.tex mjo.bst
+MJOTEX += mjo-eja.tex mjo-font.tex mjo-linear_algebra.tex mjo-listing.tex
+MJOTEX += mjo-misc.tex mjo-proof_by_cases.tex mjo-theorem.tex
+MJOTEX += mjo-theorem-star.tex mjo-topology.tex mjo.bst
+
+# Compile a list of raw source code listings (*.listing) and their
+# associated output files (*.py) that will be tested by check-sage.
+SAGE_LISTING_SRCS = $(wildcard sage_listings/*.listing)
+SAGE_LISTING_DSTS = $(patsubst %.listing,%.py,$(SAGE_LISTING_SRCS))
+
+INDICES = $(PN)