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Stefan Monnier authored
Avoid the abuse of (eval `(defvar ...)) which tends to end up adding redundant entries in `load-history`, as discussed in https://lists.gnu.org/r/help-gnu-emacs/2019-03/msg00237.html (custom-initialize-default): Don't add to load-history. (custom-declare-variable): Use internal--define-uninitialized-variable and only add the var to load-history once. Do it before calling `initialize` so the special-variable-p flag is set. * src/eval.c (Finternal__define_uninitialized_variable): New function. (Fdefvar, Fdefconst): Use it. (syms_of_eval): Defsubr' it.
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