[libxml++] Fix a warning found by clang++

[Murray Cumming <murrayc src gnome org>]

commit ff24d43dadf5b26ffc4dc15a9aa4567ae07bfee0
Author: Murray Cumming <murrayc murrayc com>
Date:   Wed Mar 21 10:25:04 2012 +0100

    Fix a warning found by clang++
    
    	* libxml++/parsers/textreader.h: PropertyReader is a class, not
    	a struct.

 ChangeLog                     |    7 +++++++
 libxml++/parsers/textreader.h |    4 ++--
 2 files changed, 9 insertions(+), 2 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index d8d7ccb..2dc9c49 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2012-03-21  Murray Cumming  <murrayc murrayc com>
+
+	Fix a warning found by clang++
+
+	* libxml++/parsers/textreader.h: PropertyReader is a class, not
+	a struct.
+
 2012-03-20  Murray Cumming  <murrayc murrayc com>
 
 	Remove the --disable-api-exceptions configure option.
diff --git a/libxml++/parsers/textreader.h b/libxml++/parsers/textreader.h
index 1f730cd..595e2e5 100644
--- a/libxml++/parsers/textreader.h
+++ b/libxml++/parsers/textreader.h
@@ -200,8 +200,8 @@ class TextReader: NonCopyable
     bool is_valid() const;
 
   private:
-    struct PropertyReader;
-    friend struct PropertyReader;
+    class PropertyReader;
+    friend class PropertyReader;
 
     void setup_exceptions();
     static void on_libxml_error(void * arg, const char *msg, int severity,