problem compiling apps

[Omar Andres Armas Aleman]

I've just downloaded swarm 1.0.5 and installed it in a PC running redhat 5.0. 
Now i want to try some applications, so i downloaded swarmapps-1.0.2.
When i try to compile "market" i receive the next error:
------------------------
address@hidden market]$ make
gcc -g -L/usr/genia/swarm/swarm-1.0.5/lib   -o market agents.o forecast.o 
history.o Market.o main.o MarketModelSwarm.o MarketObserverSwarm.o 
/usr/genia/swarm/swarm-1.0.5/lib/swarm.x -lobjc -lX11 -lm  -ldl
ld: cannot open -lX11: No such file or directory
make: *** [market] Error 1
address@hidden market]$
----------------------------------
Can anyone help me ti fix it? what's the problem? am i missing a library? or i 
need to modify the Makefile?
Thanks.

-- 


Omar Armas
http://jlagunez.iquimica.unam.mx/~kaos


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