pub unsafe extern "C" fn dgbsv_(
n: *const c_int,
kl: *const c_int,
ku: *const c_int,
nrhs: *const c_int,
ab: *mut c_double,
ldab: *const c_int,
ipiv: *mut c_int,
b: *mut c_double,
ldb: *const c_int,
info: *mut c_int,
)