Han-Wen Nienhuys <hanwen@xs4all.nl> writes:
>
>   make check
>
> isn't complaining.

I think it works only because that preload array is empty.  There's a
terminating zero entry, so the fetch from there gives NULL, and
lt_dlpreload_default can tolerate NULL (it looks like NULL is what's
there if you never call lt_dlpreload_default at all).

If the array wasn't empty the fetch would be the address of the first
symbol name string, and interpreting that as structs would bomb.

I suppose the fix is to define the struct, perhaps per below.  Or
perhaps the lt_dlpreload_default call isn't needed at all if there's
no -dlopen or -dlpreopen in the link.