Clang'ing The Kernel With Different LLVM Setups Will Be Easier With Linux 5.18

Building the Linux kernel with LLVM/Clang rather than GCC has continued maturing nicely since the support was mainlined two years ago and additional LLVM/Clang functionality continues to be optionally supported by the Linux kernel. With Linux 5.18 there is an improvement around the handling of the LLVM environment variable for dealing with versioned compiler binaries or compiler installations outside of the PATH...