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libpq API incompatibility between 7.4 and 8.0

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: pgsql-hackers(at)postgresql(dot)org
Cc: Martin Pitt <mpitt(at)debian(dot)org>
Subject: libpq API incompatibility between 7.4 and 8.0
Date: 2005-02-02 11:22:50
Message-ID: 200502021222.50831.peter_e@gmx.net (view raw or flat)
Thread:
Lists: pgsql-hackerspgsql-patches
Martin Pitt has detected that the libpq API has changed incompatibly
between 7.4 and 8.0.  This has the effect, for example, that 7.4's psql
cannot run with 8.0's libpq.  Example:

$ LD_LIBRARY_PATH=/home/peter/devel/pg80/pg-install/lib /home/peter/devel/pg74/pg-install/bin/psql --help
/home/peter/devel/pg74/pg-install/bin/psql: relocation error: /home/peter/devel/pg74/pg-install/bin/psql: undefined symbol:get_progname

I haven't looked further, but we have to fix this urgently, I think.

-- 
Peter Eisentraut
http://developer.postgresql.org/~petere/

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