void cvKMeans2(CvArr* samples, int cluster_count, CvArr* labels, CvTermCriteria termcrit) {
    void *fptr;

    fptr = dlsym(_Chcv_handle, "cvKMeans2_chdl");
    if(fptr == NULL) {
        fprintf(_stderr, "Error: %s(): dlsym(): %s\n", __func__,  dlerror());
        return;
    }
    dlrunfun(fptr, NULL, cvKMeans2, samples, cluster_count, labels, termcrit);
}
