zroots error

[green_ray]

Hi there,

I am trying to compile very simple code from xzroots but have got the error like this,

"Error: Name 'zroots' at (1) is an ambiguous reference to 'zroots' from module 'nr' "

Does someboby have any idea why it happens?
The example code for zroots from Numerical Recipes and I don't see any problem with it..