How to translate IAR "PUBLIC" to CCS?

Have looked around a lot but probably not enough to find out how to translate following IAR code to CCS ver.4 code:

      PUBLIC  I2CSetup       ;exported symbols

Have tried with

       .def   I2CSetup      

but get this error:

[E0300] 'I2CSetup' is not defined in

this source file

.def I2CSetup

Also tried iar2css but was not helped. What to do?