@item
This function does not support the @code{O_NONBLOCK} flag when it is defined
by the gnulib module @code{nonblocking} on some platforms:
-mingw.
+mingw, MSVC 9.
@item
On Windows platforms (excluding Cygwin), this function does usually not
recognize the @file{/dev/null} filename.
@itemize
@item
On Windows, this function returns a file handle in @code{O_TEXT} mode by
-default; this means that it translates '\n' to CR/LF by default. Use the
+default; this means that it translates @code{'\n'} to CR/LF by default. Use the
@code{O_BINARY} flag if you need reliable binary I/O.
@end itemize