如何在Windows上使用GCC-7.1.0？

C++17 is coming out, and I'm hoping to use it in some upcoming projects. How can I install GCC-7.1.0 on windows without relying on Cygwin? I have a version of mingw already installed on my computer, and I've downloaded and unpacked the folder containing the source code for gcc-7.1.0. How can I use my current version of the gcc compiler to compile gcc-7.1.0? Is there a sequence of commands I can carry out in the windows command prompt to do this?C++17 is coming out, and I'm hoping to use it i