Package: gcc-mingw-w64-x86-64

"gcc-mingw-w64-x86-64" package binaries on Debian:

/usr/bin/x86_64-w64-mingw32-cpp-posix /usr/bin/x86_64-w64-mingw32-cpp-win32 /usr/bin/x86_64-w64-mingw32-gcc-4.9-posix /usr/bin/x86_64-w64-mingw32-gcc-4.9-win32 /usr/bin/x86_64-w64-mingw32-gcc-ar-posix /usr/bin/x86_64-w64-mingw32-gcc-ar-win32 /usr/bin/x86_64-w64-mingw32-gcc-nm-posix /usr/bin/x86_64-w64-mingw32-gcc-nm-win32 /usr/bin/x86_64-w64-mingw32-gcc-posix /usr/bin/x86_64-w64-mingw32-gcc-ranlib-posix /usr/bin/x86_64-w64-mingw32-gcc-ranlib-win32 /usr/bin/x86_64-w64-mingw32-gcc-win32 /usr/bin/x86_64-w64-mingw32-gcov-posix /usr/bin/x86_64-w64-mingw32-gcov-win32

You may install this package on Debian with apt-get install gcc-mingw-w64-x86-64