Free Pascal Compiler version 2.4.0-2ubuntu1.10.04 [2011/06/17] for i386 Copyright (c) 1993-2009 by Florian Klaempfl Target OS: Linux for i386 Compiling criptmat.pas criptmat.pas(17,8) Warning: Variable "z" does not seem to be initialized Linking executable /usr/bin/ld: warning: link.res contains output sections; did you forget -T? 34 lines compiled, 0.0 sec 1 warning(s) issued