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directive-undef.mk revision 1.6 
      1  1.6  rillig # $NetBSD: directive-undef.mk,v 1.6 2020/12/13 01:07:54 rillig Exp $
      2  1.1  rillig #
      3  1.2  rillig # Tests for the .undef directive.
      4  1.6  rillig #
      5  1.6  rillig # See also:
      6  1.6  rillig #	directive-misspellings.mk
      7  1.1  rillig 
      8  1.3  rillig # As of 2020-07-28, .undef only undefines the first variable.
      9  1.3  rillig # All further variable names are silently ignored.
     10  1.3  rillig # See parse.c, string literal "undef".
     11  1.3  rillig 1=		1
     12  1.3  rillig 2=		2
     13  1.3  rillig 3=		3
     14  1.3  rillig .undef 1 2 3
     15  1.3  rillig .if ${1:U_}${2:U_}${3:U_} != _23
     16  1.4  rillig .  warning $1$2$3
     17  1.3  rillig .endif
     18  1.1  rillig 
     19  1.5  rillig .undef				# oops: missing argument
     20  1.5  rillig 
     21  1.1  rillig all:
     22  1.1  rillig 	@:;
     23