Database connectivity using ECPG

Hi,

I'm using ECPG to connect to my postgres database. Doing it for the very first time in my life.

The name of my database is postgres and uses a trusted connection. So, i don't think it needs any authentication parameteres like a
user name and password.

I have the follwoing line of code in my .pgc file for the database connectivity:-

EXEC SQL CONNECT TO postgres;

after compiling my .c file, i get the following error

In function `main':ecpg_test.c:(.text+0x5d): undefined reference to `ECPGconnect'

Can any1 tell me wot is this all about???

EXEC SQL CONNECT TO postgres; gets converted to
{ ECPGconnect(__LINE__, 0, "postgres" , NULL,NULL , NULL, 0); }
after ECPG does its internal conversion from .pgc to .c

Regards,
~Jas