varmod-remember.mk revision 1.3 1 1.3 rillig # $NetBSD: varmod-remember.mk,v 1.3 2020/08/23 15:18:43 rillig Exp $
2 1.1 rillig #
3 1.2 rillig # Tests for the :_ modifier, which saves the current variable value
4 1.2 rillig # in the _ variable or another, to be used later again.
5 1.1 rillig
6 1.3 rillig # In the parameterized form, having the variable name on the right side of
7 1.3 rillig # the = assignment operator is confusing. In almost all other situations
8 1.3 rillig # the variable name is on the left-hand side of the = operator. Luckily
9 1.3 rillig # this modifier is only rarely needed.
10 1.1 rillig all:
11 1.3 rillig @echo ${1 2 3:L:_:@var@${_}@}
12 1.3 rillig @echo ${1 2 3:L:@var@${var:_=SAVED:}@}, SAVED=${SAVED}
13