Update portability information for the spawn*() functions and related
constants. Someone will need to fill in information on the spawn*()
functions that aren't listed.
diff --git a/Doc/lib/libos.tex b/Doc/lib/libos.tex
index c03d0d9..5239fcb 100644
--- a/Doc/lib/libos.tex
+++ b/Doc/lib/libos.tex
@@ -788,7 +788,7 @@
the Visual \Cpp{} Runtime Library documentation for further
information; the constants are exposed to the Python programmer as
listed below.
-Availability: Windows.
+Availability: \UNIX{}, Windows.
\versionadded{1.5.2}
\end{funcdesc}
@@ -799,17 +799,24 @@
a tuple. \var{mode} is a magic operational constant. See the Visual
\Cpp{} Runtime Library documentation for further information; the
constants are exposed to the Python programmer as listed below.
-Availability: Windows.
+Availability: \UNIX{}, Windows.
\versionadded{1.5.2}
\end{funcdesc}
\begin{datadesc}{P_WAIT}
\dataline{P_NOWAIT}
\dataline{P_NOWAITO}
-\dataline{P_OVERLAY}
-\dataline{P_DETACH}
Possible values for the \var{mode} parameter to \function{spawnv()}
and \function{spawnve()}.
+Availability: \UNIX{}, Windows.
+\versionadded{1.5.2}
+\end{datadesc}
+
+\begin{datadesc}{P_OVERLAY}
+\dataline{P_DETACH}
+Possible values for the \var{mode} parameter to \function{spawnv()}
+and \function{spawnve()}. These are less portable than those listed
+above.
Availability: Windows.
\versionadded{1.5.2}
\end{datadesc}