SOLVED Missing Library

Hello! I'm trying to call IntersectSegments(). This function requires #include <geometryutils.h>, but my compiler says there is no such library.
Here is SDK page.
https://developers.maxon.net/docs/Cinema4DCPPSDK/html/classmaxon_1_1_geometry_utils_interface.html
How to call this function? And why i don't have this library despite the sdk page.

geometryutils.h is part of the geom.framework.

See also Where is lib_geom.h

Thank you!