Function libdw::raw::dwarf_getmacros_off

pub unsafe extern "C" fn dwarf_getmacros_off(
    dbg: *mut Dwarf, 
    macoff: u64, 
    callback: Option<unsafe extern "C" fn(*mut Dwarf_Macro_s, *mut c_void) -> i32>, 
    arg: *mut c_void, 
    token: isize
) -> isize