The constants @code{ERA}, @code{ERA_D_FMT}, @code{ERA_D_T_FMT},
@code{ERA_T_FMT}, @code{ALT_DIGITS} are not supported on some platforms:
OpenBSD 3.8.
+@item
+The constants @code{T_FMT_AMPM}, @code{YESEXPR}, @code{NOEXPR} are not
+supported on some platforms:
+IRIX 5.3.
+@item
+The constants @code{YESEXPR} and @code{NOEXPR} do not return a valid
+string on some platforms:
+Irix 6.5.
@end itemize
Portability problems not fixed by Gnulib:
@item
On Cygwin 1.7.0, only the charset portion of a locale designation is honored.
+
+@item
+On NetBSD 5.0, in some locales, @code{nl_langinfo(CRNCYSTR)} returns the
+empty string, although the local currency symbol, as returned by
+@code{localeconv()->currency_symbol}, is non-empty.
@end itemize