Re: Compile 12.2 with specific OpenSSL libraries - Mailing list pgsql-general

From Joshua Poehls
Subject Re: Compile 12.2 with specific OpenSSL libraries
Date
Msg-id CAF5BchgY7Rk5CqJPHLSt1nr+4P1AfNn2CzfLM_mtRoUxfrFZSQ@mail.gmail.com
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In response to Re: Compile 12.2 with specific OpenSSL libraries  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-general
Thanks, Tom. I really appreciate you taking the time to help me out!

I think I'm good now. I ran `readelf -d libpq.so | grep runpath` and I see that the path I specified in --with-libraries is present (albeit after my system path). It also appears the version I expected of libssl is being used (libssl.so.1.1).

At this point I think it's fairly straightforward to set the rpath to lock down the runtime linking as you mentioned. Thanks again!

On Tue, Sep 29, 2020 at 1:33 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
Joshua Poehls <joshua@poehls.me> writes:
> rpath and LD_LIBRARY_PATH are only relevant for the runtime
> linking/resolution, right? My concern is that at *compilation time* the
> wrong version of OpenSSL is being picked up.

No; --with-libraries will control what's linked against.  The problem
you face is that the dynamic linker has its own idea of how to resolve
the library references at runtime.  (ldd just reports on what the
dynamic linker would do; there's no trace in the executable file of
exactly which copy of a shlib was linked against.)

                        regards, tom lane


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Joshua Poehls

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