[fpc-pascal]Error during linking.

[Cyril LAMY]

Hello,

I have already install Freepascal on my computer but
when i want to compile examples (gtk,xforms,..) from the package,
I have the following error during linking :

/usr/bin/ld: cannot find -lX11
ex1.pp(24) Warning: Error while linking
Closing script ppas.sh
23 Lines compiled, 1.3 sec

and then i only have my .pp file and the .o file
How can i solve this problem ?