downloaded "apll-1.5.tar.gz" today (11 Dec 2015 ) from tp://ftp.gnu.org to build on a MAC running OS x 10.9.5
<configure> completed with no errors, but <make> reported the following errors ./../Workspace.hh:257:26: error: non-ASCII characters are not allowed outside of literals and identifiers rw_sv_def(Quad_Quad, ⎕) ^ ./../Workspace.hh:258:26: error: non-ASCII characters are not allowed outside of literals and identifiers rw_sv_def(Quad_QUOTE, ⍞) ^ ./../Workspace.hh:278:26: error: non-ASCII characters are not allowed outside of literals and identifiers rw_sv_def(Quad_Quad, ⎕) ^ ./../Workspace.hh:279:26: error: non-ASCII characters are not allowed outside of literals and identifiers rw_sv_def(Quad_QUOTE, ⍞) ^ the code is the same on https://savannah.gnu.org/svn/?group=apl