Steffen interpolation

[Patrick Alken]

Thanks for noticing this - I moved those parameters into the steffen 
state workspace and replaced the fmin() and copysign() functions which 
are not c89 compliant. Things should be working now under c89

Patrick

On 04/04/2014 02:02 AM, tbeu wrote:
> Hi,
>
> not sure if my comment at https://github.com/jfcaron3/gsl-steffen-devel/issues/1 is considered, but please make it C89 compliant. Thanks!
>
> Best regards,
> tbeu
>
>
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