为使用boost的预开发库构建c包装时未解析的外部

Question

我写了一个在C语言中使用PCL和提升的库。它正在完美地构建。当我试图用C语言为它做一个包装器时 /CLR我得到了很多未解决的错误。首先，为什么Visual Studio在构建包装器时再次重建我的库？其次，为什么我得到了以下未解决的错误？：

Error   LNK2005 "protected: virtual void __cdecl pcl::Grabber::signalsChanged(void)" (?signalsChanged@Grabber@pcl@@MEAAXXZ) already defined in pcl_io_debug.lib(pcl_io_debug.dll)
Error   LNK2005 "protected: virtual void __cdecl pcl::Grabber::signalsChanged(void)" (?signalsChanged@Grabber@pcl@@MEAAXXZ) already defined in pcl_io_debug.lib(pcl_io_debug.dll)
Error   LNK2001 unresolved external symbol "public: virtual void __cdecl pcl::visualization::PCLVisualizer::FPSCallback::Execute(class vtkObject *,unsigned long,void *)" (?Execute@FPSCallback@PCLVisualizer@visualization@pcl@@UEAAXPEAVvtkObject@@KPEAX@Z)
Error   LNK2019 unresolved external symbol deflate referenced in function "protected: int __cdecl boost::iostreams::detail::zlib_base::xdeflate(int)" (?xdeflate@zlib_base@detail@iostreams@boost@@IEAAHH@Z)
Error   LNK2019 unresolved external symbol deflateEnd referenced in function "protected: void __cdecl boost::iostreams::detail::zlib_base::reset(bool,bool)" (?reset@zlib_base@detail@iostreams@boost@@IEAAX_N0@Z)
Error   LNK2019 unresolved external symbol inflate referenced in function "protected: int __cdecl boost::iostreams::detail::zlib_base::xinflate(int)" (?xinflate@zlib_base@detail@iostreams@boost@@IEAAHH@Z)
Error   LNK2019 unresolved external symbol inflateEnd referenced in function "protected: void __cdecl boost::iostreams::detail::zlib_base::reset(bool,bool)" (?reset@zlib_base@detail@iostreams@boost@@IEAAX_N0@Z)
Error   LNK2019 unresolved external symbol deflateReset referenced in function "protected: void __cdecl boost::iostreams::detail::zlib_base::reset(bool,bool)" (?reset@zlib_base@detail@iostreams@boost@@IEAAX_N0@Z)
Error   LNK2019 unresolved external symbol inflateReset referenced in function "protected: void __cdecl boost::iostreams::detail::zlib_base::reset(bool,bool)" (?reset@zlib_base@detail@iostreams@boost@@IEAAX_N0@Z)
Error   LNK2019 unresolved external symbol crc32 referenced in function "protected: void __cdecl boost::iostreams::detail::zlib_base::after(char const * &,char * &,bool)" (?after@zlib_base@detail@iostreams@boost@@IEAAXAEAPEBDAEAPEAD_N@Z)
Error   LNK2019 unresolved external symbol deflateInit2_ referenced in function "private: void __cdecl boost::iostreams::detail::zlib_base::do_init(struct boost::iostreams::zlib_params const &,bool,void * (__cdecl*)(void *,unsigned int,unsigned int),void (__cdecl*)(void *,void *),void *)" (?do_init@zlib_base@detail@iostreams@boost@@AEAAXAEBUzlib_params@34@_NP6APEAXPEAXII@ZP6AX22@Z2@Z)
Error   LNK2019 unresolved external symbol inflateInit2_ referenced in function "private: void __cdecl boost::iostreams::detail::zlib_base::do_init(struct boost::iostreams::zlib_params const &,bool,void * (__cdecl*)(void *,unsigned int,unsigned int),void (__cdecl*)(void *,void *),void *)" (?do_init@zlib_base@detail@iostreams@boost@@AEAAXAEBUzlib_params@34@_NP6APEAXPEAXII@ZP6AX22@Z2@Z)

Answer 1

实际上，我刚刚使用了BOOST\u IOSTREAMS\u NO\u LIB，这解决了大多数问题。所以在我看来，windows中的bzip2过滤器有一个问题，因为默认情况下应该禁用它，而这主要是禁用它们。对于与visualizer相关的其他问题，我在这里找到了答案

Answer 2

C-CLI是一种不同的语言；它编译到一个完全不同的目标（某些.NET运行时版本/体系结构），这既是它再次构建的原因，也是您需要为这些目标配置配置链接依赖关系的原因。

我个人会将所有本机依赖项保存在本机DLL中，并在混合模式程序集中实现一个窄接口。这样，您可以将混合模式程序集的依赖项总结为捆绑任何其他本机依赖项的一个本机DLL。