未定义的对org::opensplice::core::DWDeleter::DWDeleter的引用

Question

我是OpenSplice新手，我想从这里编写简单的教程：

https://github.com/PrismTech/dds-tutorial-cpp-ex

我下载了OpenSplice Community并提供了release.com文件。

然后，我克隆了dds教程-cpp-ex git存储库，并尝试构建ch1：

$ cd ch1
$ cmake .
$ make
Scanning dependencies of target datamodel
[ 11%] Generating gen/TempControl.cpp, gen/TempControl.h, gen/TempControlDcps.cpp, gen/TempControlDcps.h, gen/TempControlDcps_impl.cpp, gen/TempControlDcps_impl.h, gen/TempControlSplDcps.cpp, gen/TempControlSplDcps.h, gen/ccpp_TempControl.h
[ 22%] Building CXX object CMakeFiles/datamodel.dir/gen/TempControl.cpp.o
[ 33%] Building CXX object CMakeFiles/datamodel.dir/gen/TempControlDcps.cpp.o
[ 44%] Building CXX object CMakeFiles/datamodel.dir/gen/TempControlDcps_impl.cpp.o
[ 55%] Building CXX object CMakeFiles/datamodel.dir/gen/TempControlSplDcps.cpp.o
Linking CXX shared library libdatamodel.so
[ 55%] Built target datamodel
Scanning dependencies of target tspub
[ 66%] Building CXX object CMakeFiles/tspub.dir/tspub.cpp.o
[ 77%] Building CXX object CMakeFiles/tspub.dir/util.cpp.o
Linking CXX executable tspub
CMakeFiles/tspub.dir/tspub.cpp.o: In function `dds::pub::detail::DataWriter<tutorial::TempSensorType>::DataWriter(dds::pub::TPublisher<org::opensplice::pub::PublisherDelegate> const&, dds::topic::Topic<tutorial::TempSensorType, dds::topic::detail::Topic> const&, dds::core::TEntityQos<org::opensplice::pub::qos::DataWriterQosImpl> const&, dds::core::status::StatusMask const&)':
/home/user/workspace/HDE/x86_64.linux/include/dcps/C++/isocpp/dds/pub/detail/DataWriter.hpp:241: undefined reference to `org::opensplice::core::DWDeleter::DWDeleter(std::shared_ptr<DDS::Publisher> const&)'
CMakeFiles/tspub.dir/tspub.cpp.o: In function `dds::topic::detail::Topic<tutorial::TempSensorType>::Topic(dds::domain::TDomainParticipant<org::opensplice::domain::DomainParticipantDelegate> const&, std::string const&, std::string const&, dds::core::TEntityQos<org::opensplice::topic::qos::TopicQosImpl> const&, dds::topic::TopicListener<tutorial::TempSensorType>*, dds::core::status::StatusMask const&)':
/home/user/workspace/HDE/x86_64.linux/include/dcps/C++/isocpp/dds/topic/detail/Topic.hpp:87: undefined reference to `org::opensplice::core::TopicDeleter::TopicDeleter(std::shared_ptr<DDS::DomainParticipant> const&)'
collect2: error: ld returned 1 exit status
make[2]: *** [tspub] Error 1
make[1]: *** [CMakeFiles/tspub.dir/all] Error 2
make: *** [all] Error 2

不幸的是，有一个对`org::opensplice::core::DWDeleter::DWDeleter(std::shared_ptr const&)的未定义引用

库libdcpsisocpp.so被添加到定义此引用的链接目标(参见https://github.com/PrismTech/dds-tutorial-cpp-ex/blob/master/cmake/FindOpenSplice.cmake#L56)中。

我已经通过切换到HDE/x86_64.linux/custom_lib文件夹并执行make -f Makefile.Build_DCPS_ISO_Cpp_Lib来重新构建库，完成后没有出现错误。

为什么我会有这个错误？我怎么才能修好它？

我的系统是Ubuntu14.04 amd64。

OpenSplice版本为: OpenSplice HDE发布版V6.4.140407OSS用于x86_64.linux，日期为2014-04-15

编辑：在OpenSplice OpenSplice HDE版本V6.5.0p1中存在相同的问题，用于x86_64.linux，日期为2015-03-19

这些错误是：

undefined reference to `org::opensplice::core::DRDeleter::DRDeleter(std::shared_ptr<DDS::Subscriber> const&)'
undefined reference to `org::opensplice::core::TopicDeleter::TopicDeleter(std::shared_ptr<DDS::DomainParticipant> const&)'

注: Crosspost with (无任何答复)：http://forums.opensplice.org/index.php?/topic/2517-undefined-reference-to-orgopensplicecoredwdeleterdwdeleter/

Answer 1

问题是，包含的库不是在C++11支持下构建的，因此它使用Boost共享指针而不是C++11指针，但是教程代码不知怎么地使用了C++11。

编辑Makefile HDE/x86_64.linux/custom_lib/Makefile.Build_DCPS_ISO_Cpp_Lib并将-std=c++0x添加到CPPFLAGS行解决了这个问题。

(别忘了用make -f Makefile.Build_DCPS_ISO_Cpp_Lib重新编译)

@yasir-majeed谢谢你指出这一点！