(*(f) == '/' \
|| ((f)[0] && (f)[1] == ':')) /* drive name */
# else /* !DOSISH */
-# define PERL_FILE_IS_ABSOLUTE(f) (*(f) == '/')
+# ifdef MACOS_TRADITIONAL
+# define PERL_FILE_IS_ABSOLUTE(f) (strchr(f, ':'))
+# else /* !MACOS_TRADITIONAL */
+# define PERL_FILE_IS_ABSOLUTE(f) (*(f) == '/')
+# endif /* MACOS_TRADITIONAL */
# endif /* DOSISH */
# endif /* WIN32 */
#endif /* VMS */