On my solaris 2.6 system, I have XawViewportSetCoordinates in libXaw.so.5 and NOT in libXaw.so.4. I am not sure what that means for you. alpe: nm libXaw.so.5 | grep XawViewportSetCoordinates [1462] | 193016| 92|FUNC |GLOB |0 |8 |XawViewportSetCoordinates alpe: nm libXaw.so.4 | grep XawViewportSetCoordinates alpe: sdw