Hi,
I miss the function 'uniq' without sorting.
The function is useful to reduce include path list in huge and automatically generated Makefile projects. An example is AutoSar.
Benefits are:
- acceleration
- commandline limitations of some cross compiler
- easyer to read commandline.
Currently I use:
---------------- snip ----------------
################################################################################
#
# function uniq(list)
#
# do uniq without sort.
#
# Makfile has uniq only in sort which is not possible for include path order.
#
# tr " " "\n" : fields -> lines
# cat -n : add lines numbers
# sort -uk2 : sort uniq with field 2
# sort -nk1 : sort in previous order
# cut -f2- : remove line numbers
# tr "\n" " " : lines -> fields
#
uniq=$(shell echo $(1) | tr " " "\n" | cat -n | sort -uk2 | sort -nk1| cut -f2- | tr "\n" " ")
#
# function uniq(list)
#
# do uniq without sort.
#
# Makfile has uniq only in sort which is not possible for include path order.
#
# tr " " "\n" : fields -> lines
# cat -n : add lines numbers
# sort -uk2 : sort uniq with field 2
# sort -nk1 : sort in previous order
# cut -f2- : remove line numbers
# tr "\n" " " : lines -> fields
#
uniq=$(shell echo $(1) | tr " " "\n" | cat -n | sort -uk2 | sort -nk1| cut -f2- | tr "\n" " ")
---------------- snip ----------------
Is this the right place to ask ?
Kind Regards,
Clemens
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