void cvSeqPopFront(CvSeq* seq, void* element) {
    void *fptr;

    fptr = dlsym(_Chcv_handle, "cvSeqPopFront_chdl");
    if(fptr == NULL) {
        fprintf(_stderr, "Error: %s(): dlsym(): %s\n", __func__,  dlerror());
        return;
    }
    dlrunfun(fptr, NULL, cvSeqPopFront, seq, element);
}
