It seems that rtest16.mac doesn't get installed; here is the relevant chunk of maxima/tests/Makefile.am ... genericdir = $(insttestsdir) genericdirDATA = rexamples.mac \ rtest10.mac \ rtest11.mac \ rtest12.mac \ rtest13.mac \ rtest13s.mac \ rtest14.mac \ rtest15.mac \ <---- missing rtest16.mac rtest1a.mac \ ... Barton