fixed bogus undefined symbols with hpux compiler

src/ca/oldChannelNotify.cpp

@@ -183,6 +183,13 @@ void oldChannelNotify::writeException ( int status, const char *pContext,
         __FILE__, __LINE__, *this, type, count, CA_OP_PUT );
 }
 
+void * oldChannelNotify::operator new ( size_t )
+{
+    // The HPUX compiler seems to require this even though no code
+    // calls it directly
+    throw std::logic_error ( "why is the compiler calling private operator new" );
+}
+
 void oldChannelNotify::operator delete ( void * )
 {
     // Visual C++ .net appears to require operator delete if