RE: [INTERFACES] PgConnection

Thanks for your response.

I tried your suggestion, and thing seem to go a little bit better--I still
receive one error at compile time, though.  (quite frustrating :) )

Hee's the error I receive:
$> g++ -I/usr/local/pgsql/include mytest.cpp -L/usr/local/pgsql/lib -lpq++
-lpq
/usr/local/pgsql/lib/libpq.a(fe-auth.o): In function 'pg_password_sendauth':
fe-auth.o(.text+0.17): undefined reference to 'crypt'

I even tried making sure that crypt.h was in g++'s search path, but I still
got the same error....

Any ideas?

TIA
-Jason




-----Original Message-----
From: Tom Lane [mailto:tgl@sss.pgh.pa.us]
Sent: Thursday, October 22, 1998 9:58 AM
To: Vasquez, Jason
Cc: pgsql-interfaces@hub.org
Subject: Re: [INTERFACES] PgConnection


"Vasquez, Jason" <Jason.Vasquez@Connect.Xerox.com> writes:
> I've read the documentation about using the C++ interface to Postgres, but
I
> seem to be havin trouble getting anything to compile.  Following the
example
> included with the distribution, I have done something similar to this:
> #include <iostream.h>
> #include <libpq++.h>
> void main() {
>   PgDatabase data ("foo");
> yadayadayada
> }
> Whenever I do this, I get a compile error stating that there is an
undefined
> reference to PgConnection.

Compile error, or link error?  I tried the same, and got complaints
about the linker not being able to find several PgConnection routines
until I added "-L/usr/local/pgsql/lib -lpq++ -lpq" to the command line:

$ g++ -I/usr/local/pgsql/include pgtest.cc
collect2: ld returned 1 exit status
/bin/ld: Unsatisfied symbols:
   PgConnection::PgConnection(void)(code)
   PgConnection::PgConnection(char const *)(code)
   PgConnection::~PgConnection(void)(code)
   PQfnumber (code)

$ g++ -I/usr/local/pgsql/include pgtest.cc -L/usr/local/pgsql/lib -lpq++
-lpq
[ no complaint ]

If you're using shared libraries there are also possibilities for
installation problems that prevent libpq++ from finding libpq at run
time, but evidently you're not getting that far yet :-(.

            regards, tom lane