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Avoid crashes in 'defconst'

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* src/eval.c (Fdefconst): Verify that SYMBOL is a known symbol.
(Bug#41817)
This commit is contained in:
Stephen Berman 2020-06-11 23:10:07 +02:00 • committed by Eli Zaretskii
parent 11e3413cff
commit 368e140660
1 changed files with 1 additions and 0 deletions
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src/eval.c
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@ -831,6 +831,7 @@ usage: (defconst SYMBOL INITVALUE [DOCSTRING]) */)
Lisp_Object sym, tem;
sym = XCAR (args);
CHECK_SYMBOL (sym);
Lisp_Object docstring = Qnil;
if (!NILP (XCDR (XCDR (args))))
{