[PATCH] [ELF] Fix undefined symbol handling in DSO.

[Joerg Sonnenberger]

On Mon, Apr 07, 2014 at 12:32:14PM +0200, Joerg Sonnenberger wrote:
> (2) Undefined symbols in shared libraries pulled in via -l are ignored.

>From a discussion with Dimitry, I have to annotate this. Undefined
symbols from shared libraries have to be kept in a separate set. The
linker should ensure that any definition of them is exported. This is
similar to redefined symbols.

Joerg