1 # $NetBSD: varmod-remember.mk,v 1.3 2020/08/23 15:18:43 rillig Exp $
3 # Tests for the :_ modifier, which saves the current variable value
4 # in the _ variable or another, to be used later again.
6 # In the parameterized form, having the variable name on the right side of
7 # the = assignment operator is confusing. In almost all other situations
8 # the variable name is on the left-hand side of the = operator. Luckily
9 # this modifier is only rarely needed.
11 @echo ${1 2 3:L:_:@var@${_}@}
12 @echo ${1 2 3:L:@var@${var:_=SAVED:}@}, SAVED=${SAVED}