c++ - qscintilla2:体系结构x86_64的 undefined symbol

我有一个静态Qt并在macOS 10.12.4上重新编译了qscintilla2_qt5.a(2.10)。当我编译项目时，它会显示以下错误:

Undefined symbols for architecture x86_64:
  "qRegisterDraggedTypes(QStringList const&)", referenced from:
      initialiseRectangularPasteboardMime() in libqscintilla2_qt5.a(MacPasteboardMime.o)
  "QMacPasteboardMime::count(QMimeData*)", referenced from:
      vtable for RectangularPasteboardMime in libqscintilla2_qt5.a(MacPasteboardMime.o)
  "QMacPasteboardMime::QMacPasteboardMime(char)", referenced from:
      initialiseRectangularPasteboardMime() in libqscintilla2_qt5.a(MacPasteboardMime.o)
  "QMacPasteboardMime::~QMacPasteboardMime()", referenced from:
      RectangularPasteboardMime::~RectangularPasteboardMime() in libqscintilla2_qt5.a(MacPasteboardMime.o)
      RectangularPasteboardMime::~RectangularPasteboardMime() in libqscintilla2_qt5.a(MacPasteboardMime.o)
  "typeinfo for QMacPasteboardMime", referenced from:
      typeinfo for RectangularPasteboardMime in libqscintilla2_qt5.a(MacPasteboardMime.o)

最佳答案

静态构建Qt时，需要在* .pro文件中添加 QT + = macextras 。我不知道为什么，但是当程序在通用的Qt中构建时，没有 macextras 就可以工作。