Your
reverse = $(2) $(1)
example in the manual is great, however if one day your users happen
to want to quote a comma,
OK:;echo $(call reverse,a,b)
SORRY1:;echo $(call reverse,a\,b,c)
SORRY2:;echo $(call reverse,"a,b",c)
then they are S.O.L. unless you mention how.
One apparently needs to do
EE=a,b
OK2:;echo $(call reverse,$(EE),c)
Mention that it is the only(?) way.
Wait,
OK3:;s=,;echo $(call reverse,a$${s}b,c)
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