Binary: libstdc++-6.dll

CentOS packages that has this binary:

Package: mingw32-gcc-c++

/usr/i686-w64-mingw32/sys-root/mingw/bin/libstdc++-6.dll

Package: mingw64-gcc-c++

/usr/x86_64-w64-mingw32/sys-root/mingw/bin/libstdc++-6.dll