[abseil] LNK2005 linker errors with C++/CLI project

[chriche-ms]

Operating system

Windows

Compiler

MSVC

Steps to reproduce the behavior

1. Create a simple C++/CLI console program using the VS template
2. Add vcpkg support
3. Add abseil dependency
4. Build and observe LNK2005 linker errors

Failure logs

Build started at 14:01...
1>------ Build started: Project: TestVcpkg, Configuration: Debug x64 ------
1>TestVcpkg.cpp
1>.NETFramework,Version=v4.7.2.AssemblyAttributes.cpp
1>Generating Code...
1>TestVcpkg.obj : MSIL module encountered; incremental linking is disabled for MSIL; performing full link
1>MSVCRTD.lib(throw_bad_alloc.obj) : error LNK2005: "public: __cdecl std::bad_alloc::bad_alloc(class std::bad_alloc const &)" (??0bad_alloc@std@@qeaa@AEBV01@@z) already defined in abseil_dll.lib(abseil_dll.dll)
1>MSVCRTD.lib(throw_bad_alloc.obj) : error LNK2005: "public: __cdecl std::bad_array_new_length::bad_array_new_length(class std::bad_array_new_length const &)" (??0bad_array_new_length@std@@qeaa@AEBV01@@z) already defined in abseil_dll.lib(abseil_dll.dll)
1>MSVCRTD.lib(throw_bad_alloc.obj) : error LNK2005: "public: __cdecl std::exception::exception(class std::exception const &)" (??0exception@std@@qeaa@AEBV01@@z) already defined in abseil_dll.lib(abseil_dll.dll)
1>MSVCRTD.lib(throw_bad_alloc.obj) : error LNK2005: "public: virtual __cdecl std::bad_array_new_length::~bad_array_new_length(void)" (??1bad_array_new_length@std@@UEAA@XZ) already defined in abseil_dll.lib(abseil_dll.dll)
1>MSVCRTD.lib(throw_bad_alloc.obj) : error LNK2005: "public: virtual char const * __cdecl std::exception::what(void)const " (?what@exception@std@@UEBAPEBDXZ) already defined in abseil_dll.lib(abseil_dll.dll)
1>C:\Code\TestVcpkg\x64\Debug\TestVcpkg.exe : fatal error LNK1169: one or more multiply defined symbols found
1>Done building project "TestVcpkg.vcxproj" -- FAILED.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
========== Build completed at 14:01 and took 02.922 seconds ==========

Additional context

No response

[Mengna-Li]

I did not reproduce this issue on x64-windows. Which triplet are you using? Please provide a simple example also. Thanks.

[chriche-ms]

This is using the x64-windows triplet. I have a minimal repro, just need to figure out how to clean all the vcpkg buildtrees etc. to get the size down enough to share...