On Sun, Sep 25, 2022 at 09:03:40PM -0400, Rich Felker wrote:
> [...]
> Of course these interfaces should not be used, and we never intended
> for them to be used just there for linking-compat. So, I've wanted to
> get rid of them for a long time now.
> 
> I believe the simplest short-term way is probably going to be just
> having the dynamic linker symbol lookup error path make one final
> check before bailing out with an error:
> 
> - If the symbol to lookup ends in "64"..
> - ..and it's in a hard-coded list of LFS64-compat symbols..
> - ..and looking up the name with the "64" removed in libc succeeds..
> 
> Then use the version without the "64" suffix and go on with relocation
> processing.

Proposed patch attached.