mingw下载地址
https://sourceforge.net/projects/mingw/
arm gcc下载地址
https://developer.arm.com/downloads/-/arm-gnu-toolchain-downloads
cmake下载地址
https://cmake.org/download/
cmake跨平台编译说明
https://cmake.org/cmake/help/latest/manual/cmake-toolchains.7.html#cross-compiling-for-linux
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