+@item
+The macros @code{LLONG_MIN}, @code{LLONG_MAX}, @code{ULLONG_MAX} are not
+defined on some platforms:
+AIX 5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1 with gcc.
+@item
+The macros @code{WORD_BIT}, @code{LONG_BIT} are not defined on some platforms:
+glibc 2.11 without @code{-D_GNU_SOURCE}, Cygwin, mingw, MSVC 9.
+@item
+The macro @code{SSIZE_MAX} is not defined on some platforms:
+MSVC 9.