File revive-qt5.patch of Package qhexedit2

Index: qhexedit2-0.8.10/example/main.cpp
===================================================================
--- qhexedit2-0.8.10.orig/example/main.cpp
+++ qhexedit2-0.8.10/example/main.cpp
@@ -4,6 +4,7 @@
 #include <QTranslator>
 #include <QLocale>
 #include <QFile>
+#include <optional>
 
 #include "mainwindow.h"
 
@@ -87,11 +88,21 @@ int main(int argc, char *argv[])
 
         case Status::VersionRequested:
             parser.showVersion();
+#if QT_VERSION >= QT_VERSION_CHECK(6,0,0)
             Q_UNREACHABLE_RETURN(0);
+#else
+            Q_UNREACHABLE();
+            return 0;
+#endif
 
         case Status::HelpRequested:
             parser.showHelp();
+#if QT_VERSION >= QT_VERSION_CHECK(6,0,0)
             Q_UNREACHABLE_RETURN(0);
+#else
+            Q_UNREACHABLE();
+            return 0;
+#endif
     }
 
     if (query.hasFile)