Add availability information for a couple of the types.

diff --git a/Doc/lib/libtypes.tex b/Doc/lib/libtypes.tex
index 8ade4a6be956aa18e0fe0a49e9e2b22fbde2cb7e..a2be143c68f31e507dd6c28120e4c83bdf9eec1b 100644 (file)
--- a/Doc/lib/libtypes.tex
+++ b/Doc/lib/libtypes.tex
@@ -48,7 +48,8 @@ The type of floating point numbers (e.g. \code{1.0}).
 \end{datadesc}
 
 \begin{datadesc}{ComplexType}
-The type of complex numbers (e.g. \code{1.0j}).
+The type of complex numbers (e.g. \code{1.0j}).  This is not defined
+if Python was built without complex number support.
 \end{datadesc}
 
 \begin{datadesc}{StringType}
@@ -56,7 +57,8 @@ The type of character strings (e.g. \code{'Spam'}).
 \end{datadesc}
 
 \begin{datadesc}{UnicodeType}
-The type of Unicode character strings (e.g. \code{u'Spam'}).
+The type of Unicode character strings (e.g. \code{u'Spam'}).  This is
+not defined if Python was built without Unicode support.
 \end{datadesc}
 
 \begin{datadesc}{TupleType}