Ubuntu18.04安装arm-linux-gnueabi-gcc，版本为7.5.0，编译4.0.0 Linux内核时出现
linux/compiler-gcc7.h: No such file or directory
临时解决方法：
find "linux/compiler-gcc*.h" in your project, "*" maybe 3 or 5 or others
cp "linux/compiler-gcc*.h" "linux/compiler-gcc7.h".
参考：
标签：gcc,低版本,gcc7,编译,内核,linux,compiler From： https://www.cnblogs.com/fumian-think/p/18449412