Re: linking error

On Tue, 13 Jun 2000, anuj wrote:

> Dear sir,
> This is a small sample 'C' program.
> Compile successfully and linking error is coming in PQsetdb function.
> This program will run on Linux RH6. How to remove this linking error.
> Please waiting your valuable guidance.
> Thanx.

gcc conn.c -L/usr/local/pgsql/lib -lpg -o conn

Vince.

>
>
> ******* Compile Result ************
> [rootanuj(at)Lux2 rootanuj]$ gcc -S conn.c
> [rootanuj(at)Lux2 rootanuj]$ gcc conn.c
> /tmp/ccroTWA2.o: In function `main':
> /tmp/ccroTWA2.o(.text+0x48): undefined reference to `PQsetdbLogin'
> collect2: ld returned 1 exit status
> [rootanuj(at)Lux2 rootanuj]$
> *******************************
>
> /* conn.c */
> #include <stdio.h>
> #include "/usr/include/pgsql/libpq-fe.h"
> main()
> {
> char *pghost,
> *pgport,
> *pgoptions,
> *pgtty;
> char *dbName;
>
> PGconn *conn;
>
> pghost = NULL; /* host name of the backend server */
> pgport = "5432"; /* port of the backend server */
> pgoptions = NULL; /* special options to start up the backend
> * server */
> pgtty = NULL; /* debugging tty for the backend server */
> dbName = "template1";
>
> /* make a connection to the database */
> conn = PQsetdbLogin(pghost, pgport, pgoptions,
> pgtty,dbName,"username","password");
> /* Compile successfully and linking error is coming in PQsetdb function. */
> /* Compile cc -S conn.c */
> }
>
>
>

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