在DLL中包含OpenVDB;將錯誤與Visual Studio 2015鏈接錯誤

Question

我想在Visual Studio 2015中編譯一個我製作的DLL，它用作OpenVDB中某些功能的C兼容包裝，使其可用於現有的C項目中。當我建立，但是，我得到以下鏈接器錯誤：

Error LNK2019 unresolved external symbol "__declspec(dllimport) public: class std::shared_ptr<class std::basic_streambuf<char,struct std::char_traits<char> > > __thiscall openvdb::v4_0_1::io::MappedFile::createBuffer(void)const " (__imp_?createBuffer@MappedFile@io@v4_0_1@openvdb@@QBE?AV?$shared_ptr@V?$basic_streambuf@DU?$char_traits@D@std@@@std@@@std@@XZ) referenced in function "private: void __thiscall openvdb::v4_0_1::tree::LeafBuffer<float,3>::doLoad(void)const " (?doLoad@?$LeafBuffer@M$02@tree@v4_0_1@openvdb@@ABEXXZ) 

Error LNK2019 unresolved external symbol "__declspec(dllimport) class std::shared_ptr<class openvdb::v4_0_1::io::StreamMetadata> __cdecl openvdb::v4_0_1::io::getStreamMetadataPtr(class std::ios_base &)" (__imp_?getStreamMetadataPtr@io@v4_0_1@openvdb@@YA?AV?$shared_ptr@VStreamMetadata@io@v4_0_1@openvdb@@@std@@AAVios_base@5@@Z) referenced in function "void __cdecl openvdb::v4_0_1::io::readCompressedValues<float,class openvdb::v4_0_1::util::NodeMask<3> >(class std::basic_istream<char,struct std::char_traits<char> > &,float *,unsigned int,class openvdb::v4_0_1::util::NodeMask<3> const &,bool)" (??$readCompressedValues@MV?$NodeMask@$02@util@v4_0_1@openvdb@@@io@v4_0_1@openvdb@@YAXAAV?$basic_istream@DU?$char_traits@D@std@@@std@@PAMIABV?$NodeMask@$02@util@12@_N@Z) 

Error LNK2019 unresolved external symbol "__declspec(dllimport) void __cdecl openvdb::v4_0_1::io::setStreamMetadataPtr(class std::ios_base &,class std::shared_ptr<class openvdb::v4_0_1::io::StreamMetadata> &,bool)" (__imp_?setStreamMetadataPtr@io@v4_0_1@openvdb@@YAXAAVios_base@std@@AAV?$shared_ptr@VStreamMetadata@io@v4_0_1@openvdb@@@5@_N@Z) referenced in function "private: void __thiscall openvdb::v4_0_1::tree::LeafBuffer<float,3>::doLoad(void)const " (?doLoad@?$LeafBuffer@M$02@tree@v4_0_1@openvdb@@ABEXXZ) 

Error LNK2019 unresolved external symbol "__declspec(dllimport) public: static class std::shared_ptr<class openvdb::v4_0_1::math::Transform> __cdecl openvdb::v4_0_1::math::Transform::createLinearTransform(class openvdb::v4_0_1::math::Mat4<double> const &)" (__imp_?createLinearTransform@Transform@math@v4_0_1@openvdb@@SA?AV?$shared_ptr@VTransform@math@v4_0_1@openvdb@@@std@@ABV?$Mat4@N@234@@Z) referenced in function "public: static class std::shared_ptr<class openvdb::v4_0_1::math::Transform> __cdecl OpenVDB_c::LinearTransform(double,double,double,double,double,double,double,double,double,double,double,double,double,double,double,double)" (?LinearTransform@OpenVDB_c@@SA?AV?$shared_ptr@VTransform@math@v4_0_1@openvdb@@@std@@NNNNNNNNNNNNNNNN@Z) 

Error LNK2019 unresolved external symbol "__declspec(dllimport) public: void __thiscall openvdb::v4_0_1::GridBase::setTransform(class std::shared_ptr<class openvdb::v4_0_1::math::Transform>)" (__imp_?setTransform@GridBase@v4_0_1@openvdb@@QAEXV?$shared_ptr@VTransform@math@v4_0_1@openvdb@@@std@@@Z) referenced in function __catch$?setGridTransform@OpenVDB_c@@QAE_NHV?$shared_ptr@VTransform@math@v4_0_1@openvdb@@@std@@@Z$0 

Error LNK2019 unresolved external symbol "__declspec(dllimport) public: class std::shared_ptr<class openvdb::v4_0_1::GridBase> __thiscall openvdb::v4_0_1::io::File::readGrid(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (__imp_?readGrid@File@io@v4_0_1@openvdb@@QAE?AV?$shared_ptr@VGridBase@v4_0_1@openvdb@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@6@@Z) referenced in function "public: int __thiscall OpenVDB_c::readGrid(int,char *)" (?readGrid@OpenVDB_c@@QAEHHPAD@Z) 

Error LNK2001 unresolved external symbol "public: virtual class std::shared_ptr<class openvdb::v4_0_1::io::Archive> __thiscall openvdb::v4_0_1::io::File::copy(void)const " (?copy@File@io@v4_0_1@openvdb@@UBE?AV?$shared_ptr@VArchive@io@v4_0_1@openvdb@@@std@@XZ) 

Error LNK2001 unresolved external symbol "public: virtual void __thiscall openvdb::v4_0_1::io::File::write(class std::vector<class std::shared_ptr<class openvdb::v4_0_1::GridBase const >,class std::allocator<class std::shared_ptr<class openvdb::v4_0_1::GridBase const > > > const &,class openvdb::v4_0_1::MetaMap const &)const " (?write@File@io@v4_0_1@openvdb@@UBEXABV?$vector@V?$shared_ptr@$$CBVGridBase@v4_0_1@openvdb@@@std@@V?$allocator@V?$shared_ptr@$$CBVGridBase@v4_0_1@openvdb@@@std@@@2@@std@@ABVMetaMap@34@@Z) 

Error LNK2001 unresolved external symbol "__declspec(dllimport) private: static union half::uif const * const half::_toFloat" (__imp_?_toFloat@half@@0QBTuif@1@B) C:\Users\t00001657\documents\visual studio 2015\Projects\OVDBC\OVDBC\ovdbc.obj 1 

OpenVDB和所有的依賴都在包括文件夾，其目錄添加到附加包含目錄，這是我目前的附加依賴的列表下連接器選項：

• blosc.lib
• cppunit.lib
• glew32.lib
• glfw3.lib
• Half.lib
• IEX-2_2.lib
• IexMath-2_2.lib
• IlmImf-2_2.lib
• IlmImfUtil-2_2.lib
• IlmThread-2_2.lib
• Imath2_2。 LIB
• openvdb.lib
• tbb.lib
• tbb_debug.lib
• tbb_preview.lib
• tbb_preview_debug.lib
• tbbmalloc.lib
• tbbmalloc_debug.lib
• tbbproxy.lib
• zlibstaticd.lib

我似乎無法找到任何信息用Visual Studio中的OpenVDB進行編譯，涵蓋了這種錯誤，並且對於我可能會遺忘的東西非常難過。

Answer 1

這竟然是一對夫婦的組合問題：

1. 我OpenVDB二進制文件與OPENVDB_3_ABI_COMPATIBLE編譯定義的，因此使用的shared_ptr而不是性病版本的提升版本，但我hadn」在試圖構建我的項目時定義了OPENVDB_3_ABI_COMPATIBLE，所以它試圖使用std版本來構建;因此，未定義的外部。
2. 我還沒有定義OPENEXR_DLL和HALF_EXPORTS，這在我用這些庫進行構建時顯然是需要的。
3. 我是用/ MT選項，而不是使用half.lib

中端/ MDD選項編譯，所有我需要做的是確定OPENEXR_DLL，HALF_EXPORTS和OPENVDB_3_ABI_COMPATIBLE，並切換構建選項/ MDd。