Rarely isn't never. I'd join in the recommendation above to read pg's "On Lisp" to get a sense of the sort of things one can accomplish with a few small macros.

Rarely isn't never. I'd join in the recommendation above to read pg's "On Lisp" to get a sense of the sort of things one can accomplish with a few small macros. But just as a sampler, if your language has a preprocessor phase where source code is manipulated by source code you provide, you can add control structures. Maybe your language has a loop construct but no way to iterate through a collection without explicit indices. You can add that, and it will be a first-class control structure that gets to control evaluation and everything. You do not have to file a feature request and drum up support and wait five years to get it.