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s! {
// FIXME this is actually a union
#[cfg_attr(target_pointer_width = "32",
repr(align(4)))]
#[cfg_attr(target_pointer_width = "64",
repr(align(8)))]
pub struct sem_t {
#[cfg(target_pointer_width = "32")]
__size: [::c_char; 16],
#[cfg(target_pointer_width = "64")]
__size: [::c_char; 32],
}
}