Downloading Error

Hi all,

I have written UDP clientserver program. I can compile successfully with warnings saying
Implicit declaration of sendto, socket, recvfrom, bind, gettimeofday, taskSpawn functions
eventhough i have included corresponding headerfiles.
When i download i will get the following error:

Unresolved symbols encountered while downloading

Errors while downloading C:/Tornado/target/proj/Project22/SIMNTgnu/Project22.out:
_sendto
_socket
_recvfrom
_bind
_gettimeofday
_inet_addr

Plz guide me,

Regards,
Vinaykumar

Did you check CONFIGURATION for including standard socket lib.?