Just configured, built, and installed libapl. So I took look a libapl.h, authored by Dr. Dirk Laurie, and saw this comment
/* Application Program Interface for GNU APL... The details of this API are described in libapl.txt in this directory */ However that document does not appear in /Usr/local/include/apl which is where libapl.h exists. and bash find didn’t find it nor could OS X Spotlight search. Does it exist at all? If so where can I find it? Thanks…. Peter