Re: func to remove dupes

[Stephan Beal]

On Thursday 28 June 2007, John Graham-Cumming wrote:
> You could always use the function 'uniq' which is in my GMSL.  Here's
> the definition:
>
> uniq = $(if $1,$(call uniq,$(call chop,$1)) $(if $(filter $(call
> last,$1),$(call chop,$1)),,$(call last,$1)))

The list's Christoph Schulz sent a nice implementation which uses fewer 
$(call)s:

remove-dupes = $(if $1,$(strip $(word 1,$1) $(call $0,$(filter-out 
$(word 1,$1),$1))))

Pretty elegant, IMO :).

(In any case, both yours and Christoph's implementations are far more 
elegant than mine!)

-- 
----- stephan beal
http://www.wanderinghorse.net

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