QBasicAtomicInteger<quintptr> isn't supported

In file included from ../../include/QtCore/qglobal.h:1,
                 from /home/rutledge/dev/qt5/qtbase/src/corelib/thread/qsemaphore.h:43:
../../include/QtCore/../../../../qt5/qtbase/src/corelib/thread/qbasicatomic.h: In instantiation of ‘class QBasicAtomicInteger<long long unsigned int>’:
/home/rutledge/dev/qt5/qtbase/src/corelib/thread/qsemaphore.h:70:39:   required from here
../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qglobal.h:121:63: error: static assertion failed: template parameter is an integral of a size not supported on this platform
  121 | #  define Q_STATIC_ASSERT_X(Condition, Message) static_assert(bool(Condition), Message)
      |                                                               ^~~~~~~~~~~~~~~
../../include/QtCore/../../../../qt5/qtbase/src/corelib/thread/qbasicatomic.h:97:5: note: in expansion of macro ‘Q_STATIC_ASSERT_X’
   97 |     Q_STATIC_ASSERT_X(QAtomicOpsSupport<sizeof(T)>::IsSupported, "template parameter is an integral of a size not supported on this platform");
      |     ^~~~~~~~~~~~~~~~~
../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qglobal.h:121:63: note: ‘false’ evaluates to false
  121 | #  define Q_STATIC_ASSERT_X(Condition, Message) static_assert(bool(Condition), Message)
      |                                                               ^~~~~~~~~~~~~~~
../../include/QtCore/../../../../qt5/qtbase/src/corelib/thread/qbasicatomic.h:97:5: note: in expansion of macro ‘Q_STATIC_ASSERT_X’
   97 |     Q_STATIC_ASSERT_X(QAtomicOpsSupport<sizeof(T)>::IsSupported, "template parameter is an integral of a size not supported on this platform");
      |     ^~~~~~~~~~~~~~~~~