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varmod-remember.mk revision 1.4 
      1  1.4  rillig # $NetBSD: varmod-remember.mk,v 1.4 2021/03/14 17:07:11 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  1.4  rillig .if ${1 2 3:L:_:@var@${_}@} != "1 2 3 1 2 3 1 2 3"
      7  1.4  rillig .  error
      8  1.4  rillig .endif
      9  1.4  rillig 
     10  1.3  rillig # In the parameterized form, having the variable name on the right side of
     11  1.3  rillig # the = assignment operator is confusing.  In almost all other situations
     12  1.3  rillig # the variable name is on the left-hand side of the = operator.  Luckily
     13  1.3  rillig # this modifier is only rarely needed.
     14  1.4  rillig .if ${1 2 3:L:@var@${var:_=SAVED:}@} != "1 2 3"
     15  1.4  rillig .  error
     16  1.4  rillig .elif ${SAVED} != "3"
     17  1.4  rillig .  error
     18  1.4  rillig .endif
     19  1.4  rillig 
     20  1.1  rillig all:
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