2 uname_M := $(shell uname -m 2>/dev/null || echo not)
4 ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
5 -e s/arm.*/arm/ -e s/sa110/arm/ \
6 -e s/s390x/s390/ -e s/parisc64/parisc/ \
7 -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
8 -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ )
10 # Additional ARCH settings for x86
18 ifeq (, $(findstring m32,$(CFLAGS)))
19 IS_X86_64 := $(shell echo __x86_64__ | ${CC} -E -x c - | tail -n 1)