Re: master 5252c45: Initialise unread buffer

[Lars Ingebrigtsen]

Mattias Engdegård <mattiase@savannah.gnu.org> writes:

>     The reader has an extra 1-char unread buffer that was incorrectly
>     initialised to 0, which means that the first character read would
>     always be NUL.  As this is often the code that looks for the
>     lexical-binding cookie, the first loaded source module would be
>     treated as dynamically bound.  During bootstrapping this is loadup.el
>     and so its local variables got dumped into the global environment.

Wow.  How did you manage to debug this?  :-)

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