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uname_M := $(shell uname -m 2>/dev/null || echo not)
ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
-e s/arm.*/arm/ -e s/sa110/arm/ \
-e s/s390x/s390/ -e s/parisc64/parisc/ \
-e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
-e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ \
-e s/tile.*/tile/ )
# Additional ARCH settings for x86
ifeq ($(ARCH),i386)
override ARCH := x86
endif
ifeq ($(ARCH),x86_64)
override ARCH := x86
IS_X86_64 := 0
ifeq (, $(findstring m32,$(CFLAGS)))
IS_X86_64 := $(shell echo __x86_64__ | ${CC} -E -x c - | tail -n 1)
RAW_ARCH := x86_64
endif
endif
ifeq (${IS_X86_64}, 1)
IS_64_BIT := 1
else ifeq ($(ARCH),x86)
IS_64_BIT := 0
else
IS_64_BIT := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1)
endif
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