Scripts to build Cross-GCC, Clang, and QEMU on Cygwin and MSYS2/MinGW-w64

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1

Hi, friends

I have some scripts to build Cross-GCC, Clang, and QEMU on Cygwin and
MSYS2/MinGW-w64 at:

I hope the scripts are useful for those interested in building the
projects on Windows.