Martijn van Oosterhout wrote:

> Attached is a patch which applies this filtering to the backend and has
> the same results as linking with --as-needed. I basically took the
> filter list of libpq and altered it as follows:
> libs removed: -lnsl -lresolv
> libs added: -ldl -lm

Hmm, we don't need -ldl?  How do we implement OPEN etc if not without
dlopen()?  [looks around]  I see this is with pg_dlopen which in turn is
dlopen in Linux and others.  Did you try contrib's regression test?

Alvaro Herrera                      
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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