Portability problems not fixed by Gnulib:
@itemize
@item
-Windows does not support the non-SUS %e specifier (and possibly the
-other non-SUS specifiers too).
+The Windows C runtime library (which is used by MinGW) does not
+support the non-SUS %e specifier (and possibly the other non-SUS
+specifiers too).
@end itemize
Extension: Gnulib offers a module @samp{strftime} that provides an