Function LLVMOrcCreateLazyCompileCallback 

pub unsafe extern "C" fn LLVMOrcCreateLazyCompileCallback(
    JITStack: *mut LLVMOrcOpaqueJITStack,
    RetAddr: *mut u64,
    Callback: Option<extern "C" fn(*mut LLVMOrcOpaqueJITStack, *mut c_void)>,
    CallbackCtx: *mut c_void,
) -> LLVMOrcErrorCode

Create a lazy compile callback.