Function dgstrf 

pub unsafe extern "C" fn dgstrf(
    options: *mut superlu_options_t,
    A: *mut SuperMatrix,
    relax: c_int,
    panel_size: c_int,
    etree: *mut c_int,
    work: *mut c_void,
    lwork: c_int,
    perm_c: *mut c_int,
    perm_r: *mut c_int,
    L: *mut SuperMatrix,
    U: *mut SuperMatrix,
    Glu: *mut GlobalLU_t,
    stat: *mut SuperLUStat_t,
    info: *mut c_int,
)