unbreaking alloca

[Alexander Leidinger]

On Sat, 14 Jun 2003 17:27:04 +0200
Dag-Erling Smorgrav <des at ofug.org> wrote:

> I'd like to commit the attached patch (after suitable testing of
> course).  It removes all mention of alloca(3) from cdefs.h, and
> instead modifies the declaration in stdlib.h so that GNU compilers see
> alloca(sz) defined to __builtin_alloca(sz) while other compilers (and
> linters) see a regular prototype.

Please also add a comment about the actual pitfalls (alloca function not
possible to implement on AMD64, ... in libc and broken on IA32).

> I would also like to add (at some future date) a link-time warning for
> alloca(3) similar to what we already have for gets(), mktemp() etc.

Wasn't there consensus to remove it entirely from libc?

Bye,
Alexander.

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http://www.Leidinger.net                       Alexander @ Leidinger.net
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