message: Only have Qt deprecation notices for things from before 5.9
diff: @@ -32,6 +32,9 @@ INCLUDEPATH += $$_PRO_FILE_PWD_/3rdparty/scintilla/include
  # Disable conversions to/from const char * in QString
  DEFINES += QT_NO_CAST_FROM_ASCII QT_NO_CAST_TO_ASCII
  +# Only count deprecated things from before 5.9, since that's our min spec
  +DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x050900
  +
  # Different output folders per platform
  win32 {
  