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1#This checks for any ENV variables and add those.2 3ifeq ($(GIT_VERSION),)4GIT_VERSION := $(shell git describe --always --long --dirty || echo "unknown")5export GIT_VERSION6endif7 8CFLAGS := -std=gnu99 -O2 -Wall -Werror -DGIT_VERSION='"$(GIT_VERSION)"' -I$(selfdir)/powerpc/include $(USERCFLAGS)9export CFLAGS10