Tricky problem filtering out commas from a string.

[Dave Korn]

  Hey everybody, has anyone else had to try and do this before?


--------------------begin comma.mk--------------------
LIST_WITH_COMMAS:= foo, bar, baz, quux
LIST_WITHOUT_COMMAS:=$(filter-out \,,$(LIST_WITH_COMMAS))
$(warning $(LIST_WITHOUT_COMMAS))
LIST2_WITHOUT_COMMAS:=$(subst \,, ,$(LIST_WITH_COMMAS))
$(warning $(LIST2_WITHOUT_COMMAS))

all:
        @

--------------------end comma.mk--------------------


  The obvious first approach - escape the comma so that filter-out doesn't
think it's the separator between its two arguments - just doesn't work.  I
can't quite see how to achieve this in make....

    cheers,
      DaveK
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