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Make make make faster. 

Optimize common case of uniq-words where the word is not
actually duplicated.  Reduces make startup overhead.

Change-Id: I1bee13bbd08a7b01248f4452283a64a724663d02
This commit is contained in:
Jeff Brown 2012-05-30 13:52:22 -07:00
parent 3e93aeae10
commit 01efddb0b8
1 changed files with 1 additions and 1 deletions
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2
core/node_fns.mk
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@ -98,7 +98,7 @@ empty :=
space := $(empty) $(empty)
define uniq-word
$(strip \
$(if $(filter $(2),$(1)), \
$(if $(filter-out 0 1,$(words $(filter $(2),$(1)))), \
$(eval h := |||$(subst $(space),|||,$(strip $(1)))|||) \
$(eval h := $(subst |||$(strip $(2))|||,|||$(space)|||,$(h))) \
$(eval h := $(word 1,$(h)) $(2) $(wordlist 2,9999,$(h))) \