pub unsafe extern fn dbbcsd_(jobu1: *mut c_char, jobu2: *mut c_char, jobv1t: *mut c_char, jobv2t: *mut c_char, trans: *mut c_char, m: *mut c_int, p: *mut c_int, q: *mut c_int, theta: *mut c_double, phi: *mut c_double, u1: *mut c_double, ldu1: *mut c_int, u2: *mut c_double, ldu2: *mut c_int, v1t: *mut c_double, ldv1t: *mut c_int, v2t: *mut c_double, ldv2t: *mut c_int, b11d: *mut c_double, b11e: *mut c_double, b12d: *mut c_double, b12e: *mut c_double, b21d: *mut c_double, b21e: *mut c_double, b22d: *mut c_double, b22e: *mut c_double, work: *mut c_double, lwork: *mut c_int, info: *mut c_int)