SF bug 990749: os constants missing
A LaTeX comment identified the 6 os.O_XXX constants the docs claimed
are available on Windows but aren't. The bug report listed the same 6.
Split these non-Windows constants into a different table with a possibly
correct "Availability:" claim.
diff --git a/Doc/lib/libos.tex b/Doc/lib/libos.tex
index 73630e8..9159131 100644
--- a/Doc/lib/libos.tex
+++ b/Doc/lib/libos.tex
@@ -586,20 +586,23 @@
\begin{datadesc}{O_RDONLY}
\dataline{O_WRONLY}
\dataline{O_RDWR}
-\dataline{O_NDELAY}
-\dataline{O_NONBLOCK}
\dataline{O_APPEND}
-\dataline{O_DSYNC}
-\dataline{O_RSYNC}
-\dataline{O_SYNC}
-\dataline{O_NOCTTY}
\dataline{O_CREAT}
\dataline{O_EXCL}
\dataline{O_TRUNC}
Options for the \var{flag} argument to the \function{open()} function.
These can be bit-wise OR'd together.
Availability: Macintosh, \UNIX, Windows.
-% XXX O_NDELAY, O_NONBLOCK, O_DSYNC, O_RSYNC, O_SYNC, O_NOCTTY are not on Windows.
+\end{datadesc}
+
+begin{datadesc}{O_DSYNC}
+\dataline{O_RSYNC}
+\dataline{O_SYNC}
+\dataline{O_NDELAY}
+\dataline{O_NONBLOCK}
+\dataline{O_NOCTTY}
+More options for the \var{flag} argument to the \function{open()} function.
+Availability: Macintosh, \UNIX.
\end{datadesc}
\begin{datadesc}{O_BINARY}