PATH[] = $(dir .)

Shell. +=
   test(args) =
      P = $(getenv PATH)
      if $(equal $(P), $(absname .))
         println(The PATH entry was correctly expanded)
      elseif $(equal $(P), $".")
         eprintln(The PATH node was incorrectly relativized)
         exit 1
      else
         eprintln($"The PATH environment variable was not set correctly: $P")
         exit 1

test || exit 1
