int cvSolve(CvArr* src1, CvArr* src2, CvArr* dst, int method) {
    void *fptr;
    int retval;

    fptr = dlsym(_Chcv_handle, "cvSolve_chdl");
    if(fptr == NULL) {
        fprintf(_stderr, "Error: %s(): dlsym(): %s\n", __func__,  dlerror());
        return -1;
    }
    dlrunfun(fptr, &retval, cvSolve, src1, src2, dst, method);
    return retval;
}
