[xsd-users] XSD & Windows DLL linkage issues with std::string

[Nicolas Weidmann]

Hello,

I am new to XSD, so be indulgent… 😉

I am encountering linking issues in the following configuration when creating a Windows DLL for my data-binding:


  *   XSD 4.2.0
  *   Visual Studio 2017, v141 & C++17
  *   CMake 3.30.2

I can create my DLL and test it without any issues.

However as soon as I use my data-binding in another library that is also to be generated as a DLL, I get link errors regarding std::string:

data-binding.lib(data-binding.dll) : error LNK2005: "public: __cdecl std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::basic_string<char,struct std::char_traits<char>,class std::allocator<cha
r> >(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (??0?$basic_string at DU?$char_traits at D@std@@V?$allocator at D@2@@std@@QEAA at AEBV01@@Z) already defined in ClassUsingTheDataBinding.obj [LibraryUsingTheDatabinding.vcxproj]
I get this issue for every constructor and method of std::string used in the “client” library.
Since I include some XSD library headers directly, I have XSD_CXX11 globally defined for both projects.
Has someone already encountered a similar issue?
Regards,
Nicolas Weidmann
Banque Lombard Odier & Cie SA
Rue de la Corraterie 11 - 1204 Genève - Suisse
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