GIT_COMMIT = $(shell git describe --always --exclude '*' || echo 'unknown') GIT_BRANCH = $(shell git rev-parse --abbrev-ref HEAD || echo 'unknown') GIT_BRANCH_NUM = $(shell git rev-list --count $(GIT_BRANCH) || echo 'nan') BUILD_DATE = $(shell date '+%d-%m-%Y' || echo 'unknown') VERSION = $(shell git describe --tags --abbrev=0 || echo 'unknown') CFLAGS += -DGIT_COMMIT="\"$(GIT_COMMIT)\"" -DGIT_BRANCH="\"$(GIT_BRANCH)\"" -DGIT_BRANCH_NUM="\"$(GIT_BRANCH_NUM)\"" CFLAGS += -DBUILD_DATE="\"$(BUILD_DATE)\"" -DTARGET="\"$(TARGET)\"" -DVERSION="\"$(VERSION)\""