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+@node close
+@section @code{close}
+@findex close
+
+POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/close.html}
+
+Gnulib module: close
+
+Portability problems fixed by Gnulib:
+@itemize
+@item
+On Windows platforms (excluding Cygwin), @code{socket} and @code{accept}
+do not return file descriptors that can be closed by @code{close}.
+Instead, @code{closesocket} must be used.
+@end itemize
+
+Portability problems not fixed by Gnulib:
+@itemize
+@item
+On BeOS, @code{socket} and @code{accept} do not return file descriptors
+that can be closed by @code{close}. Instead, @code{closesocket} must be
+used.
+@end itemize