Re: unicode build: "comparison is always true" warnings

[Mark A. Hershberger]

Andreas Schwab <address@hidden> writes:

> Please tell me which part of the sources you have difficulties to
> understand, then I can explain it to you.

Other people will see the compilation warning and naively ask “Why is
emacs doing things insecurely?”

It would be helpful to have an explanation in the comments to explain
_why_ it is secure despite the warnings.

I'll readily admit I don't know enough about mailfile locking or mktemp
to understand why this is secure despite the warnings.  For those of us
who don't readily understand secure mailfile locking, could you explain
why mktemp is ok?

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