Plan 9 from Bell Labs’s /usr/web/sources/patch/applied/ape-hypot-redux/files
/386/include/ape/math.h math.h /arm/include/ape/math.h math.h.0 /mips/include/ape/math.h math.h.1 /power/include/ape/math.h math.h.2 /sparc/include/ape/math.h math.h.3