gf-3.1.6: examples/attempto/AttemptoEng.gf
--# -path=.:present concrete AttemptoEng of Attempto = SymbolsC ** AttemptoI with (Syntax = SyntaxEng), (Symbolic = SymbolicEng), (LexAttempto = LexAttemptoEng) ;
--# -path=.:present concrete AttemptoEng of Attempto = SymbolsC ** AttemptoI with (Syntax = SyntaxEng), (Symbolic = SymbolicEng), (LexAttempto = LexAttemptoEng) ;