Windows: Building unit tests fails with linker errors

Summary

Building the unit tests on Windows fails with a linker error LNK2001: unresolved external symbol "class google::protobuf::internal::ExplicitlyConstructed<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,8> ...

 build  cmake --build .
MSBuild version 17.9.8+b34f75857 for .NET Framework

  Checking Build System
  Generating include/caosdb/info/v1/main.pb.cc, include/caosdb/info/v1/main.grpc.pb.cc, include/caosdb/entity/v1/main.pb.cc, include/caosdb/entity/v1/main.grpc.pb.cc, include/caosdb/info/v1/main.pb.h, include/caosdb/info/v1/main.grpc.pb.h, include/caosdb/entity/v1/main.pb.h, include/caosdb/entity/v1/main.grpc.pb.h
  Building Custom Rule C:/Code/LinkAhead/linkahead-cpplib/CMakeLists.txt
  main.pb.cc
  main.grpc.pb.cc
  main.pb.cc
  main.grpc.pb.cc
  Auto build dll exports
     Creating library C:/Code/LinkAhead/linkahead-cpplib/build/lib/caosdb_grpc.lib and object C:/Code/LinkAhead/linkahead-cpplib/build/lib/caosdb_grpc.exp
main.pb.cc.obj : error LNK2001: unresolved external symbol "class google::protobuf::internal::ExplicitlyConstructed<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,8> google::protobuf::internal::fixed_address_empty_string" (?fixed_address_empty_string@internal@protobuf@google@@3V?$ExplicitlyConstructed@V?$basic_string@DU?$char_traits@D@std@@V?
$allocator@D@2@@std@@$07@123@A) [C:\Code\LinkAhead\linkahead-cpplib\build\caosdb_grpc.vcxproj]
main.pb.cc.obj : error LNK2001: unresolved external symbol "class google::protobuf::internal::ExplicitlyConstructed<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,8> google::protobuf::internal::fixed_address_empty_string" (?fixed_address_empty_string@internal@protobuf@google@@3V?$ExplicitlyConstructed@V?$basic_string@DU?$char_traits@D@std@@V?
$allocator@D@2@@std@@$07@123@A) [C:\Code\LinkAhead\linkahead-cpplib\build\caosdb_grpc.vcxproj]
main.pb.cc.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl google::protobuf::Message::MergeFrom(class google::protobuf::Message const &)" (?MergeFrom@Message@protobuf@google@@UEAAXAEBV123@@Z) [C:\Code\LinkAhead\linkahead-cpplib\build\caosdb_grpc.vcxproj]
main.pb.cc.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl google::protobuf::Message::MergeFrom(class google::protobuf::Message const &)" (?MergeFrom@Message@protobuf@google@@UEAAXAEBV123@@Z) [C:\Code\LinkAhead\linkahead-cpplib\build\caosdb_grpc.vcxproj]
main.pb.cc.obj : error LNK2001: unresolved external symbol "public: virtual class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __cdecl google::protobuf::Message::InitializationErrorString(void)const " (?InitializationErrorString@Message@protobuf@google@@UEBA?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@XZ) [C:\Code\LinkAhead\lin
kahead-cpplib\build\caosdb_grpc.vcxproj]
main.pb.cc.obj : error LNK2001: unresolved external symbol "public: virtual class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __cdecl google::protobuf::Message::InitializationErrorString(void)const " (?InitializationErrorString@Message@protobuf@google@@UEBA?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@XZ) [C:\Code\LinkAhead\lin
kahead-cpplib\build\caosdb_grpc.vcxproj]
main.pb.cc.obj : error LNK2001: unresolved external symbol "public: virtual unsigned __int64 __cdecl google::protobuf::Message::SpaceUsedLong(void)const " (?SpaceUsedLong@Message@protobuf@google@@UEBA_KXZ) [C:\Code\LinkAhead\linkahead-cpplib\build\caosdb_grpc.vcxproj]
main.pb.cc.obj : error LNK2001: unresolved external symbol "public: virtual unsigned __int64 __cdecl google::protobuf::Message::SpaceUsedLong(void)const " (?SpaceUsedLong@Message@protobuf@google@@UEBA_KXZ) [C:\Code\LinkAhead\linkahead-cpplib\build\caosdb_grpc.vcxproj]
main.pb.cc.obj : error LNK2001: unresolved external symbol "public: virtual class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __cdecl google::protobuf::Message::GetTypeName(void)const " (?GetTypeName@Message@protobuf@google@@UEBA?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@XZ) [C:\Code\LinkAhead\linkahead-cpplib\build\caosdb_g
rpc.vcxproj]
main.pb.cc.obj : error LNK2001: unresolved external symbol "public: virtual class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __cdecl google::protobuf::Message::GetTypeName(void)const " (?GetTypeName@Message@protobuf@google@@UEBA?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@XZ) [C:\Code\LinkAhead\linkahead-cpplib\build\caosdb_g
rpc.vcxproj]
main.pb.cc.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl google::protobuf::Message::CheckTypeAndMergeFrom(class google::protobuf::MessageLite const &)" (?CheckTypeAndMergeFrom@Message@protobuf@google@@UEAAXAEBVMessageLite@23@@Z) [C:\Code\LinkAhead\linkahead-cpplib\build\caosdb_grpc.vcxproj]
main.pb.cc.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl google::protobuf::Message::CheckTypeAndMergeFrom(class google::protobuf::MessageLite const &)" (?CheckTypeAndMergeFrom@Message@protobuf@google@@UEAAXAEBVMessageLite@23@@Z) [C:\Code\LinkAhead\linkahead-cpplib\build\caosdb_grpc.vcxproj]

Expected Behavior

Building unit tests should not fail

Actual Behavior

Linker errors

Steps to Reproduce the Problem

Please describe, step by step, how others can reproduce the problem. Please try these steps for yourself on a clean system.

cmake -B . -D CMAKE_BUILD_TYPE=Debug ..
cmake --build .

Specifications

Version: v0.3.0-dev
Platform: Windows 11, Visual Studio 17.9.6, cmake version 3.26.4

Possible fixes

Add protobuf sources in CMakeLists

Edited 10 months ago