affix.c AFFIX.EXE improved.c IMPROVED.EXE improved.prj lex.c lex.h main.c name.c PLAIN.C PLAIN.EXE plain.prj retsuff.c RETSUFF.EXE retsuff.prj retval.c RETVAL.EXE retval.prj tcmake.mak unixmake.mak