https://bugs.exim.org/show_bug.cgi?id=1899
Bug ID: 1899
Summary: a macro definition method permitting optional redefine
Product: Exim
Version: 4.87
Hardware: All
OS: All
Status: NEW
Severity: wishlist
Priority: medium
Component: Unfiled
Assignee: ni...@exim.org
Reporter: jgh146...@wizmail.org
CC: exim-dev@exim.org
Currently a single = macro definition requires no existing duplicate name, a
double '==' requires there be one to redefine. This is for a way that permits
but does not require an existing match, re/defining as appropriate.
To avoid removing existing functionality this should be new syntax.
Perhaps ':='.
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