+# else /* NEITHER DOSISH NOR EPOCISH NOR SYMBIANISH */
+# ifdef MACOS_TRADITIONAL
+# define PERL_FILE_IS_ABSOLUTE(f) (strchr(f, ':') && *(f) != ':')
+# else /* !MACOS_TRADITIONAL */
+# define PERL_FILE_IS_ABSOLUTE(f) (*(f) == '/')
+# endif /* MACOS_TRADITIONAL */