[Tinyos-help] warning: "IDENT_UNIX_TIME" redefinition

[#YAU WAI HUNG#]

I am encounting a endless warning: "IDENT_UNIX_TIME" redefinition while trying to compile calamari's localisation application.
Here's link to a screenshot of the error message:
http://i89.photobucket.com/albums/k206/yauw0001/d75baab2.jpg
 
Pls help!
 
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