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Showing content from https://github.com/log4cplus/log4cplus/issues/401 below:

Compiling log4cplus 2.0.3 in vs2017 failed, keeping telling me "containing std::codecvt_mode, std::codecvt_utf8, std::codecvt_utf16, and std::codecvt_utf8_utf16) are deprecated in C++17. (The std::codecvt class template is NOT deprecated." · Issue #401 · log4cplus/log4cplus · GitHub

Describe your problem here.
Hello there~. I encountered a problem when compiling the reposity in vs2017

what i have done are below:
  1. I used git clone --recurse-submodules xxx to access your reposity
  2. using vs2017 to open the solution msvc14/log4cplus.sln
  3. right click the log4cplus solution and set it my launch project
  4. right click the log4jcplus -> Property -> C++ -> language -> C++ stardand -> /std:c++17
  5. generate the solution
but i keeps telling me this deprecated error: 
1>d:\gitwork\log4cplus\src\property.cxx(146): error C4996: 'std::codecvt_mode': warning STL4017: std::wbuffer_convert, std::wstring_convert, and the <codecvt> header (containing std::codecvt_mode, std::codecvt_utf8, std::codecvt_utf16, and std::codecvt_utf8_utf16) are deprecated in C++17. (The std::codecvt class template is NOT deprecated.) The C++ Standard doesn't provide equivalent non-deprecated functionality; consider using MultiByteToWideChar() and WideCharToMultiByte() from <Windows.h> instead. You can define _SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING or _SILENCE_ALL_CXX17_DEPRECATION_WARNINGS to acknowledge that you have received this warning.
1>d:\software\visualstudio\2017\community\vc\tools\msvc\14.16.27023\include\codecvt(24): note: reference to “std::codecvt_mode” declaration
1>d:\gitwork\log4cplus\src\property.cxx(146): error C4996: 'std::codecvt_utf8<log4cplus::tchar,1114111,5>': warning STL4017: std::wbuffer_convert, std::wstring_convert, and the <codecvt> header (containing std::codecvt_mode, std::codecvt_utf8, std::codecvt_utf16, and std::codecvt_utf8_utf16) are deprecated in C++17. (The std::codecvt class template is NOT deprecated.) The C++ Standard doesn't provide equivalent non-deprecated functionality; consider using MultiByteToWideChar() and WideCharToMultiByte() from <Windows.h> instead. You can define _SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING or _SILENCE_ALL_CXX17_DEPRECATION_WARNINGS to acknowledge that you have received this warning.
1>d:\gitwork\log4cplus\src\property.cxx(145): note: reference to “std::codecvt_utf8<log4cplus::tchar,1114111,5>” declaration
1>d:\gitwork\log4cplus\src\property.cxx(155): error C4996: 'std::codecvt_mode': warning STL4017: std::wbuffer_convert, std::wstring_convert, and the <codecvt> header (containing std::codecvt_mode, std::codecvt_utf8, std::codecvt_utf16, and std::codecvt_utf8_utf16) are deprecated in C++17. (The std::codecvt class template is NOT deprecated.) The C++ Standard doesn't provide equivalent non-deprecated functionality; consider using MultiByteToWideChar() and WideCharToMultiByte() from <Windows.h> instead. You can define _SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING or _SILENCE_ALL_CXX17_DEPRECATION_WARNINGS to acknowledge that you have received this warning.
1>d:\software\visualstudio\2017\community\vc\tools\msvc\14.16.27023\include\codecvt(24): note: reference to “std::codecvt_mode” declaration
1>d:\gitwork\log4cplus\src\property.cxx(155): error C4996: 'std::codecvt_utf16<log4cplus::tchar,1114111,5>': warning STL4017: std::wbuffer_convert, std::wstring_convert, and the <codecvt> header (containing std::codecvt_mode, std::codecvt_utf8, std::codecvt_utf16, and std::codecvt_utf8_utf16) are deprecated in C++17. (The std::codecvt class template is NOT deprecated.) The C++ Standard doesn't provide equivalent non-deprecated functionality; consider using MultiByteToWideChar() and WideCharToMultiByte() from <Windows.h> instead. You can define _SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING or _SILENCE_ALL_CXX17_DEPRECATION_WARNINGS to acknowledge that you have received this warning.
1>d:\gitwork\log4cplus\src\property.cxx(154): note: reference to “std::codecvt_utf16<log4cplus::tchar,1114111,5>” declaration
1>d:\gitwork\log4cplus\src\property.cxx(145): error C4996: 'std::codecvt_utf8<log4cplus::tchar,1114111,5>::codecvt_utf8': warning STL4017: std::wbuffer_convert, std::wstring_convert, and the <codecvt> header (containing std::codecvt_mode, std::codecvt_utf8, std::codecvt_utf16, and std::codecvt_utf8_utf16) are deprecated in C++17. (The std::codecvt class template is NOT deprecated.) The C++ Standard doesn't provide equivalent non-deprecated functionality; consider using MultiByteToWideChar() and WideCharToMultiByte() from <Windows.h> instead. You can define _SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING or _SILENCE_ALL_CXX17_DEPRECATION_WARNINGS to acknowledge that you have received this warning.
1>d:\software\visualstudio\2017\community\vc\tools\msvc\14.16.27023\include\codecvt(48): note: reference to “std::codecvt_utf8<log4cplus::tchar,1114111,5>::codecvt_utf8” declaration
1>d:\gitwork\log4cplus\src\property.cxx(154): error C4996: 'std::codecvt_utf16<log4cplus::tchar,1114111,5>::codecvt_utf16': warning STL4017: std::wbuffer_convert, std::wstring_convert, and the <codecvt> header  #(containing std::codecvt_mode, std::codecvt_utf8, std::codecvt_utf16, and std::codecvt_utf8_utf16) are deprecated in C++17. (The std::codecvt class template is NOT deprecated.) The C++ Standard doesn't provide equivalent non-deprecated functionality; consider using MultiByteToWideChar() and WideCharToMultiByte() from <Windows.h> instead. You can define _SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING or _SILENCE_ALL_CXX17_DEPRECATION_WARNINGS to acknowledge that you have received this warning.

I don't what went wrong~
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