Re: Warnings in cc mode

[Stefan Monnier <monnier@iro.umontreal.ca>]

> What is so bad about calling `make-variable-buffer-local' from a function
> rather than top level?  Or even, for that matter, calling it from an
> `eval-after-load' form?

make-variable-buffer-local changes the behavior of a variable globally and
for ever.  So it's a property of the variable and should only ever appear
right next to the corresponding defvar.

Many people incorrectly use make-variable-buffer-local where they meant
make-local-variable, and this warning catches this (that's the reason why
I added the warning).

Just like for all warnings, there are corner cases where the warning is
triggered in a situation where the code is actually really doing what it
intends to do.


        Stefan


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