[MacPorts] #62964: QT 5.9: Add Mavericks Compatibility

[MacPorts]

#62964: QT 5.9: Add Mavericks Compatibility
--------------------------+--------------------------------
  Reporter:  Wowfunhappy  |      Owner:  (none)
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.7.0
Resolution:               |   Keywords:  haspatch mavericks
      Port:  qt59         |
--------------------------+--------------------------------

Comment (by realnc):

 I'm not using macports for qt, but I found this while searching on whether
 qt 5.9 can be made to work on mavericks. I applied these patches (the
 newer ones, not the original ones) on top of Qt 5.9.9. I then built it on
 macOS 10.15 and 10.12. It builds fine, but the produced binaries either
 crash or produce garbled graphics when running on 10.9.

 When running from the terminal, you see a lot of errors like this:


 {{{
 QCoreTextFontDatabase: Found no matching fonts for family ".Aqua Kana"
 QCoreTextFontDatabase: Found no matching fonts for family ".Helvetica LT
 MM"
 QCoreTextFontDatabase: Found no matching fonts for family ".Helvetica Neue
 Desk UI"
 QCoreTextFontDatabase: Found no matching fonts for family ".Keyboard"
 +[NSGraphicsContext graphicsContextWithCGContext:flipped:]: unrecognized
 selector sent to class 0x7fff7588e768
 An uncaught exception was raised
 +[NSGraphicsContext graphicsContextWithCGContext:flipped:]: unrecognized
 selector sent to class 0x7fff7588e768
 2021-10-23 07:33:55.547 QTads[254:507] (
         0   CoreFoundation                      0x00007fff8c59a41c
 __exceptionPreprocess + 172
         1   libobjc.A.dylib                     0x00007fff9106be75
 objc_exception_throw + 43
         2   CoreFoundation                      0x00007fff8c59d1ed
 +[NSObject(NSObject) doesNotRecognizeSelector:] + 205
         3   CoreFoundation                      0x00007fff8c4f85b2
 ___forwarding___ + 1010
         4   CoreFoundation                      0x00007fff8c4f8138
 _CF_forwarding_prep_0 + 120
         5   QTads                               0x000000010735df08
 _ZNK16QMacStylePrivate13drawFocusRingEP8QPainterRK5QRectiid + 1016
         6   QTads                               0x000000010736e28d
 _ZNK9QMacStyle11drawControlEN6QStyle14ControlElementEPK12QStyleOptionP8QPainterPK7QWidget
 + 20541
         7   QTads                               0x0000000106da109f
 _ZN12KColorButton10paintEventEP11QPaintEvent + 111
         8   QTads                               0x000000010706da62
 _ZN7QWidget5eventEP6QEvent + 1106
         9   QTads                               0x00000001070344d9
 _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent + 265
         10  QTads                               0x0000000107035749
 _ZN12QApplication6notifyEP7QObjectP6QEvent + 377
         11  QTads                               0x000000010791b986
 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent + 166
         12  QTads                               0x0000000107066910
 _ZN14QWidgetPrivate10drawWidgetEP12QPaintDeviceRK7QRegionRK6QPointiP8QPainterP19QWidgetBackingStore
 + 3184
         13  QTads                               0x00000001070670bf
 _ZN14QWidgetPrivate22paintSiblingsRecursiveEP12QPaintDeviceRK5QListIP7QObjectEiRK7QRegionRK6QPointiP8QPainterP19QWidgetBackingStore
 + 1071
 }}}

 I went back to qt 5.8 for targeting mavericks. So I just wanted to point
 out here that it seems to me that just because qt 5.9 can be built to
 target mavericks with these patches doesn't actually mean it runs fine on
 mavericks.

-- 
Ticket URL: <https://trac.macports.org/ticket/62964#comment:8>
MacPorts <https://www.macports.org/>
Ports system for macOS