Changed Ungetch(void *, ...) to Ungetch(const void *, ...)

Fixed some bug in gsocket


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3307 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/stream.h

@@ -93,7 +93,7 @@ class WXDLLEXPORT wxInputStream: public wxStreamBase {
   virtual size_t LastRead() { return wxStreamBase::m_lastcount; }
 
   // Ungetch
-  size_t Ungetch(void *buffer, size_t size);
+  size_t Ungetch(const void *buffer, size_t size);
   bool Ungetch(char c);
 
   // Operators