Re: Problems with c, compiling, libraries

hi kirby,
    compile ur C program with -lpq. That should solve it.
regards,
hari

On Fri, 11 Oct 2002, Kirby Krueger wrote:

> Greetings.
>
> I'm trying to compile a C program that connects to a postgreSQL database.
> I'm successfully getting past the compile step, with:
> #include "/usr/include/pgsql/libpq-fe.h"
>
> However, in the link step, I get lots of things like:
> /home/kirbyk/ugxProcessTurn.c:1954: undefined reference to `PQexec'
> /home/kirbyk/ugxProcessTurn.c:1955: undefined reference to `PQresultStatus'
> /home/kirbyk/ugxProcessTurn.c:1958: undefined reference to `PQclear'
> /home/kirbyk/ugxProcessTurn.c:1960: undefined reference to `PQgetvalue'
> /home/kirbyk/ugxProcessTurn.c:1961: undefined reference to `PQgetvalue'
> /home/kirbyk/ugxProcessTurn.c:1975: undefined reference to `PQexec'
>
> ... and so on.
>
> I suspect that some libraries didn't get installed in the right place.  I'm
> not responsible for that sort of thing, but the guy who is claimed that he
> installed all the development packages for postgreSQL.
>
> I don't see anything that would be useful in /usr/lib.  There is a
> /usr/lib/pgsql, which contains:
> plpgsql.so*  pltcl.so*
>
> I tried including these in the link step, but they clearly are for some
> purpose other than the functions in libpq-fe.h.
>
> Can someone give me some pointers?  My productivity has ground to a
> screeching halt trying to figure this out.  The names of the libraries I
> ought to have installed would be very helpful; what rpms to get them from
> would be even moreso.  We're running a recent version of RedHat Linux.
>
> Thanks for any assistance!
>
> -- Kirby
>
>
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