Re: Handling of single-quoted comma [was: m4_defn overhead]

[Paolo Bonzini]

m4_define([m4_expand], [_$0(($1))])
m4_define([_m4_expand],
[m4_changequote([(], [)])$1m4_changequote`'m4_changequote(`[', `]')])

Mindblowing.

Paolo