compile socket program

[hcchin]

    I have some problem with compiling a socket program, it complile OK 
on sun OS, buy not on my linux machine.

gcc tconnect.o client.c -lsocket -o client
/usr/i486-linux/bin/ld: cannot open -lsocket: No such file or directory
make: *** [client] Error 1

    Can someone help?