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Date: Wed, 29 Jan 2003 14:13:39 +0100
From: "Jeroen T. Vermeulen" <jtv@xs4all.nl>
To: David Wright <dwright@mergetel.com>
Cc: pgsql-interfaces@postgresql.org
Subject: Re: Difficulty getting started with Postgres C++ interface
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On Mon, Jan 27, 2003 at 05:42:11PM -0500, David Wright wrote:
> 
> g++ -I/usr/include/pgsql myc.cpp -o myc
 
> 
> /home/dwright/tmp/ccx7SvXE.o(.PgDatabase::gnu.linkonce.t.(char const *)+0x13): undefined reference to `PgConnection::PgConnection(char const *)'

If you're going to use a library, you'll have to link to it to get
a working program:

g++ -I/usr/include/pgsql myc.cpp -lpq++ -o myc

You may also have to link to the underlying C library, libpq:

g++ -I/usr/include/pgsql myc.cpp -lpq++ -lpq -o myc



And finally--shameless plug coming up--you may want to use libpqxx
instead of libpq++:

  http://gborg.postgresql.org/project/libpqxx/


Jeroen