Clear Linux's make-fmv-patch Eases The Creation Of GCC FMV-Enabled Code Paths

One of the GCC compiler features unfortunately not taken advantage of by most Linux distributions is FMV - Function Multi-Versioning. FMV is what allows for the compilation of different tuned code paths depending upon the processor and for the particular code-path to be chosen at run-time, i.e. optimizing to your heart's content with AVX, SSE4, and other instruction set extensions and compiling all of that into a single binary and for the preferred code path to be taken depending upon the CPU running the binary so it will still run on older CPUs as well as today's most powerful processors...