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directive-elifdef.mk revision 1.3 
      1  1.3  rillig # $NetBSD: directive-elifdef.mk,v 1.3 2022/01/22 16:23:56 rillig Exp $
      2  1.1  rillig #
      3  1.3  rillig # Tests for the .elifdef directive, which is seldom used.  Instead of writing
      4  1.3  rillig # '.elifdef VAR', the usual form is the more versatile '.elif defined(VAR)'.
      5  1.1  rillig 
      6  1.3  rillig # At this point, VAR is not defined, so the condition evaluates to false.
      7  1.3  rillig .if 0
      8  1.3  rillig .elifdef VAR
      9  1.3  rillig .  error
     10  1.3  rillig .endif
     11  1.3  rillig 
     12  1.3  rillig VAR=	# defined
     13  1.3  rillig 
     14  1.3  rillig # At this point, VAR is defined, so the condition evaluates to true.
     15  1.3  rillig .if 0
     16  1.3  rillig .elifdef VAR
     17  1.3  rillig .else
     18  1.3  rillig .  error
     19  1.3  rillig .endif
     20  1.1  rillig 
     21  1.1  rillig all:
     22