Use St macro for specifying C standards.
Reported by: rgrimes@
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@ -198,7 +198,11 @@ If no data is available,
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.Va errno
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is set to
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.Er EAGAIN .
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This flag is not available in strict ANSI or C99 compilation mode.
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This flag is not available in
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.St -ansiC
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or
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.St -isoC-99
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compilation mode.
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The
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.Dv MSG_WAITFORONE
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flag sets MSG_DONTWAIT after the first message has been received.
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