diff -rupN qpdfview-0.5/qpdfview.pri qpdfview-0.5-new/qpdfview.pri
--- qpdfview-0.5/qpdfview.pri 2023-01-28 11:40:47.229000000 +0100
+++ qpdfview-0.5-new/qpdfview.pri 2023-10-08 01:20:01.402246510 +0200
@@ -12,4 +12,4 @@ isEmpty(APP_DIR_DATA_PATH):APP_DIR_DATA_
win32:include(qpdfview_win32.pri)
os2:include(qpdfview_os2.pri)
-CONFIG += c++11
+CONFIG += c++17