[texhax] redefinition of \= does not get into footnotes

[Alexandru Scorpan]

>> The point of my maneuver was to add some extra space around =, so I 
>> tried \renewcommand*\@aciii{\mathbin{\,=\,}} instead, but got 
>> ``missing $ inserted''.  Tried your version, same error.
>
> You didn't say you were going to use it outside math mode... Just put 
> an \ensuremath around \mathbin{\,=\,}.

No, I am not using it outside math.

Here a sample file, that yields ``missing $ inserted'' when it 
encounters the math display with \=:

\documentclass{amsart}
\AtBeginDocument{%
	\makeatletter
	\renewcommand*\@aciii{\mathbin{\,=\,}}
	\renewcommand*\={\@aciii}
	\makeatother
}
\begin{document}
\[ A\= B \]
\end{document}

The funny thing is that just adding the @-code after \begin{document} 
yields the error ``\@aciii undefined''.


>> I guess I should stick to my crappy hack, going wth
>>
>> \let\footnoteclone\footnote
>> \renewcommand{\footnote}[1]{%
>> 	\footnoteclone{\renewcommand\={\mathbin{\,=\,}}#1}}
>
> Nooooo! This is the wrong place to hack anyway.

But works fine on my 600-page document.

Alex