Portability problems fixed by Gnulib:
@itemize
@item
-On Windows platforms (excluding Cygwin), error codes for @code{accept} are not
-placed in @code{errno}, and @code{WSAGetLastError} must be used instead.
+On Windows platforms (excluding Cygwin), error codes for @code{ioctl}
+are not placed in @code{errno}, and @code{WSAGetLastError} must be
+used instead.
@item
@code{ioctl} is called @code{ioctlsocket} under mingw
@end itemize