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cond-op-not.mk revision 1.4 
      1 # $NetBSD: cond-op-not.mk,v 1.4 2020/10/24 08:46:08 rillig Exp $
      2 #
      3 # Tests for the ! operator in .if conditions.
      4 
      5 # The exclamation mark negates its operand.
      6 .if !1
      7 .  error
      8 .endif
      9 
     10 # Exclamation marks can be chained.
     11 # This doesn't happen in practice though.
     12 .if !!!1
     13 .  error
     14 .endif
     15 
     16 # The ! binds more tightly than the &&.
     17 .if !!0 && 1
     18 .  error
     19 .endif
     20 
     21 all:
     22 	@:;
     23