1ifndef ARCH 2ARCH := $(shell uname -m 2>/dev/null || echo not) 3endif 4 5ARCH := $(shell echo $(ARCH) | sed -e s/i.86/x86/ -e s/x86_64/x86/ \ 6 -e s/sun4u/sparc/ -e s/sparc64/sparc/ \ 7 -e /arm64/!s/arm.*/arm/ -e s/sa110/arm/ \ 8 -e s/s390x/s390/ -e s/parisc64/parisc/ \ 9 -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ 10 -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ \ 11 -e s/tile.*/tile/ ) 12 13LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1) 14ifeq ($(LP64), 1) 15 IS_64_BIT := 1 16else 17 IS_64_BIT := 0 18endif 19