Error linking C++ code.

I've problems using postgres with c++

I use postgresql 6.3.2, egcs-c++-1.1b, and the following comand when
compiling the code bellow

gcc -c -o lml.o lml_prueba.cc -I/usr/include/g++ -I/usr/include/pgsql
-L/usr/lib/pgsql -lpq -lpq++ -lstdc++

link give me these errors:
/usr/lib/libpq++.so: undefined reference to
`clone__Q2t12basic_string3ZcZt18string_char_traits1ZcZt24__default_alloc_templat
e2b
1i03Rep'
/usr/lib/libpq++.so: undefined reference to
`__dl__Q2t12basic_string3ZcZt18string_char_traits1ZcZt24__default_alloc_template
2b1
i03RepPv'
/usr/lib/libpq++.so: undefined reference to `__eh_pc'
collect2: ld returned 1 exit status

Can't anybody help me?

Regards.


Code:
-------------------------------------------------------------------------------
/*
Autor: Manuel de Vega Barreiro
primera prueba de acceso a postgres usando c++
version: 0.1- 280499
*/

#include <iostream.h>
#include <libpq++.h>

int main ()
{   cout << "Conexion correcta" <<endl;
PgDatabase data("lml");
 if (data.ConnectionBad() ){   cout << "Fallo en la conexion..." <<endl;   cout << "Codigo de error: " <<
data.ErrorMessage()<<endl;   return 1; }else{   cout << "Conexion correcta" <<endl; }
 
}
----------------------------------------------------------------------------


Manuel de Vega Barreiro. barreiro@arrakis.es   En un lugar de la red
Madrid. Espa�a.                                de cuyo nombre no quiero
http://www.croftj.net/~barreiro Linux Landia   acordarme..........