[Neil Brown <neilb@cse.unsw.edu.au>]
> O_OBJS := $(shell echo $(obj-y) | tr ' ' '\n' | cat -n | sort -u +1 | sort -n | cut -f2)
Clever. I like pipelines too. Here is a one-fork equivalent, untested:
nodups = $(shell g=' '; for f in $(1); do case $$g in (*" $$f "*) ;; (*) g="$$g$$f "; echo $$f; esac; done)
O_OBJS := $(call nodups,$(obj-y))
Peter
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