void cvSave(char* filename, void* struct_ptr, char* name, char* comment, CvAttrList attributes) {
    void *fptr;

    fptr = dlsym(_Chcv_handle, "cvSave_chdl");
    if(fptr == NULL) {
        fprintf(_stderr, "Error: %s(): dlsym(): %s\n", __func__,  dlerror());
        return;
    }
    dlrunfun(fptr, NULL, cvSave, filename, struct_ptr, name, comment, attributes);
}
