RFC: Documenting Linux specific behaviour of --rpath and --rpath-link

[Hans-Peter Nilsson]

On Wed, 7 Apr 2021, Nick Clifton via Binutils wrote:
>   [Begin new text]
>
>      Note however on Linux based systems there is an additional caveat:
>      If the '--as-needed' option is active _and_ a shared library is
>      located which would normally satisfy the search _and_ this library
>      does not have DT_NEEDED tag for 'libc.so' _and_ there is a shared
>      library later on in the set of search directories which also
>      satisfies the search _and_ this second shared library does have a
>      DT_NEEDED tag for 'libc.so' _then_ the second library will be
>      selected instead of the first.
>
>   [End new text]
>
>
> I thought about trying to add an explanation of why this behaviour is
> mandated, but I felt that I was getting out of my depth at that point.

Swimming or diving or asking for sufficient assistance is not an
option?  1/2 :)

> So - does anyone have any comment or corrections for this new text ?

This looks sufficiently weird that someone's insanity is in
question.  Is it me?  Isn't it actually a bug swept under the
rug because of "compability"?

brgds, H-P