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varmod-unique.mk revision 1.6 
      1 # $NetBSD: varmod-unique.mk,v 1.6 2021/12/05 22:37:58 rillig Exp $
      2 #
      3 # Tests for the :u variable modifier, which discards adjacent duplicate
      4 # words.
      5 
      6 .if ${1 2 1:L:u} != "1 2 1"
      7 .  warning The modifier ':u' only merges _adjacent_ duplicate words.
      8 .endif
      9 
     10 .if ${1 2 2 3:L:u} != "1 2 3"
     11 .  warning The modifier ':u' must merge adjacent duplicate words.
     12 .endif
     13 
     14 .if ${:L:u} != ""
     15 .  warning The modifier ':u' must do nothing with an empty word list.
     16 .endif
     17 
     18 .if ${   :L:u} != ""
     19 .  warning The modifier ':u' must normalize the whitespace.
     20 .endif
     21 
     22 .if ${word:L:u} != "word"
     23 .  warning The modifier ':u' must do nothing with a single-element word list.
     24 .endif
     25 
     26 .if ${   word   :L:u} != "word"
     27 .  warning The modifier ':u' must normalize the whitespace.
     28 .endif
     29 
     30 .if ${1 1 1 1 1 1 1 1:L:u} != "1"
     31 .  warning The modifier ':u' must merge _all_ adjacent duplicate words.
     32 .endif
     33 
     34 .if ${   1    2    1 1  :L:u} != "1 2 1"
     35 .  warning The modifier ':u' must normalize whitespace between the words.
     36 .endif
     37 
     38 .if ${1 1 1 1 2:L:u} != "1 2"
     39 .  warning Duplicate words at the beginning must be merged.
     40 .endif
     41 
     42 .if ${1 2 2 2 2:L:u} != "1 2"
     43 .  warning Duplicate words at the end must be merged.
     44 .endif
     45 
     46 all:
     47