Use non-deprecated types and methods:

as David told:
"
WFlags -> WindowFlags (it's a typedef, and it's BC, nm says
QFlags<Qt::WindowType>)
toAscii -> toLatin1
fromAscii -> fromLatin1
"
As done in kdelibs

kaevent.cpp

@@ -6371,7 +6371,7 @@ static void setProcedureAlarm(Alarm* alarm, const QString& commandLine)
         else
         {
             bool done = false;
-            switch (ch.toAscii())
+            switch (ch.toLatin1())
             {
                 case ' ':
                 case ';':