libpgeasy.h

I'm using RH 7.2 with the default postgresql that
comes along (ver 7.1)

I'm trying to write a program usign libpgeasy. I wrote
a sample code just to get the feel and got following
error. I don't what it means. The program won't
compile with gcc.

-- code --#include <stdio.h>
#include <pgsql/libpq-fe.h>
#include <pgsql/libpgeasy.h>

int main(){
char loginName[20];
char sql[256];

connectdb("hostaddr=192.168.1.4 dbname=mydb
user=user password=password");
sprintf(sql, "select loginname from
cst_customer");
doquery(sql);

while(fetch(loginName) != END_OF_TUPLES)
printf("%s\n", loginName);

disconnectdb();

return 0;
}

-- error produced by gcc --

/tmp/cc3OLzfr.o: In function `main':
/tmp/cc3OLzfr.o(.text+0x12): undefined reference to
`connectdb'
/tmp/cc3OLzfr.o(.text+0x3b): undefined reference to
`doquery'
/tmp/cc3OLzfr.o(.text+0x4c): undefined reference to
`fetch'
/tmp/cc3OLzfr.o(.text+0x75): undefined reference to
`disconnectdb'
collect2: ld returned 1 exit status

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