Added note about non-support of UNC paths on Windows.
This fixes SF bug #465447.
diff --git a/Doc/lib/libposixpath.tex b/Doc/lib/libposixpath.tex
index 9cd1a58..bc26ddd 100644
--- a/Doc/lib/libposixpath.tex
+++ b/Doc/lib/libposixpath.tex
@@ -7,6 +7,10 @@
This module implements some useful functions on pathnames.
\index{path!operations}
+\strong{Warning:} On Windows, many of these functions do not properly
+support UNC pathnames. \function{splitunc()} and \function{ismount()}
+do handle them correctly.
+
\begin{funcdesc}{abspath}{path}
Return a normalized absolutized version of the pathname \var{path}.