[Developers] ADMMacros, C version fixes

[Frank Loeffler]

On Tue, Sep 11, 2007 at 11:35:06AM +0200, Erik Schnetter wrote:
>> the C version falls back to 2nd order
>> derivatives.
>
> Given that, is there a reason to use the C version?

Yes, if you want to do quick tests in C. In this case to calculate parts
of the constraints.

Otherwise I think you are right. Especially the C version of the macros
is hardly tested and for bigger projects another method might be better.

Frank