Средства и методы разработки

https://github.com/eddyem/stm32samples/blob/master/makefile.stm32

VERSION_FILE = version.inc
ifeq ($(shell test -e $(VERSION_FILE) && echo -n yes), yes)
    NEXTVER := $(shell expr $$(awk '/#define BUILD_NUMBER/' $(VERSION_FILE) | tr -cd "[0-9]") + 1)
else
    NEXTVER := "1"
endif
BUILDDATE := $(shell date +%Y-%m-%d)

$(VERSION_FILE): *.[ch]
	@[ -f $(VERSION_FILE) ] || echo -e "#define BUILD_NUMBER \"0\"\n#define BUILD_DATE \"none\"" > $(VERSION_FILE)
	@echo "  Generate version: $(NEXTVER) for date $(BUILDDATE)"
	@sed -i "s/#define BUILD_NUMBER.*/#define BUILD_NUMBER \"$(NEXTVER)\"/" $(VERSION_FILE)
	@sed -i "s/#define BUILDNO.*/#define BUILDNO $(NEXTVER)/" $(VERSION_FILE)
	@sed -i "s/#define BUILD_DATE.*/#define BUILD_DATE \"$(BUILDDATE)\"/" $(VERSION_FILE)

И все! Инклюдим куда нужно version.inc - вуаля!