[ -z "$$revh" ] || echo '#define SERNO "'$$revh'"' >include/serno.h ; \
fi
@[ -f include/serno.h ] || echo '#define SERNO "unknown"' >include/serno.h
[ -z "$$revh" ] || echo '#define SERNO "'$$revh'"' >include/serno.h ; \
fi
@[ -f include/serno.h ] || echo '#define SERNO "unknown"' >include/serno.h