[SUBDIRMK RFC 6/7] README: v2: Draft - macro assistance facility

[Ian Jackson]

>   &[macroname   => $(eval $(call %macroname etc.

We might in any case want to have "&[macroname", or "&{macroname",
rather than "&(macroname", for two possible reasons:

* This is not really very like a variable expansion.  It expands to
  nothing and uses eval, and the referent is not a variable (although
  it is implemented with variables).

* Maybe "&(" should be reserved for something else.

Ian.

-- 
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