C++ mingw_w64 thread using with static linking error - c++

Question

I'm using clang 3.7 with MinGW-w64 version 4.0.
Attempting to build this:
#include <thread>
void f(){}
int main()
{
std::thread t(f);
return 0;
}
with these compiler flags clang++ -std=c++11 -pthread C:\Users\Илья\Desktop\main.cpp -o C:\Users\Илья\Desktop\main.exe -static
produces this linker output:
C:\mingw64\lib\gcc\x86_64-w64-mingw32\5.1.0\libstdc++.a(tinfo.o):(.text$_ZNKSt9type_infoeqERKS_+0x0):
multiple definition of std::type_info::operato r==(std::type_info const&) const'
C:\Users\75BD~1\AppData\Local\Temp\main-005548.o:(.text[_ZNKSt9type_infoeqERKS_]+0x0):
first defined here
C:\mingw64\lib\gcc\x86_64-w64-mingw32\5.1.0\libstdc++.a(future.o):(.text$_ZNSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE10_M_destroyEv[_ZNSt16
_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE10_M_destroyEv]+0x0): multiple definition of
std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_de stroy()'
C:\Users\75BD~1\AppData\Local\Temp\main-005548.o:(.text[_ZNSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE10_M_destroyEv]+0x0):
first defined her e
C:\mingw64\lib\gcc\x86_64-w64-mingw32\5.1.0\libstdc++.a(future.o):(.text$_ZNSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE10_M_releaseEv[_ZNSt16
_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE10_M_releaseEv]+0x0): multiple definition of
`std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_re lease()'
C:\Users\75BD~1\AppData\Local\Temp\main-005548.o:(.text[_ZNSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE10_M_releaseEv]+0x0):
first defined her e clang++.exe: error: linker command failed with
exit code 1 (use -v to see invocation)
How can I fix this and build this app with -static and -pthread?