1# $NetBSD: var-readonly.mk,v 1.1 2023/01/24 00:20:00 sjg Exp $ 2 3# the answer 4N = 42 5.READONLY: N 6# this should be ignored 7N = 666 8.if ${N} != 42 9.error N ($N) should be 42 10.endif 11 12.NOREADONLY: N 13# now we can change it 14N = 69 15.if ${N} == 42 16.error N should not be 42 17.endif 18 19all: 20 21