1HOSTARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \ 2 -e s/sun4u/sparc/ -e s/sparc64/sparc/ \ 3 -e /arm64/!s/arm.*/arm/ -e s/sa110/arm/ \ 4 -e s/s390x/s390/ -e s/parisc64/parisc/ \ 5 -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ 6 -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ \ 7 -e s/tile.*/tile/ ) 8ifndef ARCH 9ARCH := $(HOSTARCH) 10endif 11 12LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1) 13ifeq ($(LP64), 1) 14 IS_64_BIT := 1 15else 16 IS_64_BIT := 0 17endif 18