Question

我有跨平台解决方案，它是为Windows，Linux而成功构建的，但是在Mac OS X上构建时我有这样的问题：

   Undefined symbols for architecture x86_64:
      "qx::syb::DataType<boost::shared_ptr<qx::DistributedObject>, void>::DataType()", referenced from:
          qx::syb::AbsDynInfo const& qx::syb::dynInfo<boost::shared_ptr<qx::DistributedObject> >()in ThemeKit.cpp.o
          qx::syb::AbsDynInfo const& qx::syb::dynInfo<boost::shared_ptr<qx::DistributedObject> >()in libguiserver.a(MemUtils.cpp.o)
      "qx::syb::DataType<boost::shared_ptr<qx::aum::Color>, void>::DataType()", referenced from:
          qx::syb::AbsDynInfo const& qx::syb::dynInfo<boost::shared_ptr<qx::aum::Color> >()in ThemeKit.cpp.o
      "qx::syb::DataType<boost::shared_ptr<qx::ffm::Field>, void>::DataType()", referenced from:
          qx::syb::AbsDynInfo const& qx::syb::dynInfo<boost::shared_ptr<qx::ffm::Field> >()in libguiserver.a(FormConverter.cpp.o)
      "qx::syb::DataType<boost::shared_ptr<qx::lfm::EventType>, void>::DataType()", referenced from:
          qx::syb::AbsDynInfo const& qx::syb::dynInfo<boost::shared_ptr<qx::lfm::EventType> >()in libguiserver.a(FormConverter.cpp.o)
      "qx::syb::DataType<boost::shared_ptr<qx::lfm::ParsedExpression>, void>::DataType()", referenced from:
          qx::syb::AbsDynInfo const& qx::syb::dynInfo<boost::shared_ptr<qx::lfm::ParsedExpression> >()in libguiserver.a(FormConverter.cpp.o)
    ld: symbol(s) not found for architecture x86_64

我检查了链接器行，它包含了包含此类符号定义的目标文件。

例如：

bash-3.2$ nm -arch x86_64 -U instance*.o | c++filt | grep -i "qx::syb::DataType<boost::shared_ptr<qx::DistributedObject>, void>::DataType()"
00000000001e6e68 S qx::syb::DataType<boost::shared_ptr<qx::DistributedObject>, void>::DataType()
0000000000092e48 S qx::syb::DataType<boost::shared_ptr<qx::DistributedObject>, void>::DataType()
000000000009b170 S qx::syb::DataType<boost::shared_ptr<qx::DistributedObject>, void>::DataType()

它定义了几次，但另一个"qx::syb::DataType<boost::shared_ptr<qx::aum::Color>, void>::DataType()"只定义了一次而且也被错过了。所以这不应该成为一个问题。

我有最新的可能环境

Mac OS X version:Darwin mac.qx 10.8.0 Darwin Kernel Version 10.8.0: Tue Jun  7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386 i386
IDE: XCode:4.2
Compiler:gcc version 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.1.00)

无法链接。实际存在和定义未定义的符号

0 个答案: