PATCH: Handle undefined symbol in DSO from DT_NEEDED

[Ulrich Drepper]

"H . J . Lu" <hjl@lucon.org> writes:

> DSOs compiled against glibc 2.0 may have unversioned references to
> atexit. I won't blame people for compiling DSOs against glibc 2.0.

There is no reason to change the linker in a way which might lead to
problems being undetected.

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