Silenced unused variable compiler warning.

git-svn-id: http://yate.null.ro/svn/yate/trunk@5894 acf43c95-373e-0410-b603-e72c3f656dc1

clients/qt4/qt4client.cpp

@@ -3713,6 +3713,7 @@ bool QtClient::setProperty(QObject* obj, const char* name, const String& value)
 	default:
 	    err = "unsupported type";
     }
+    YIGNORE(err);
     if (ok)
 	DDebug(ClientDriver::self(),DebugAll,"Set property %s=%s for object '%s'",
 	    name,value.c_str(),YQT_OBJECT_NAME(obj));

modules/zlibcompress.cpp

@@ -221,6 +221,8 @@ ZLibStream::~ZLibStream()
 	code = inflateEnd(&m_zlib);
 #ifdef DEBUG
     checkError(code,"release failure");
+#else
+    YIGNORE(code);
 #endif
 }