Function newXS_flags 

pub unsafe fn newXS_flags(
    my_perl: *mut PerlInterpreter,
    a: *const c_char,
    b: XSUBADDR_t,
    c: *const c_char,
    d: *const c_char,
    e: U32,
) -> *mut CV

thx shim for crate::newXS_flags.