Free Pascal Compiler version 2.6.2 [2013/02/12] for i386
Copyright (c) 1993-2012 by Florian Klaempfl and others
Target OS: Win32 for i386
Compiling foo.pas
foo.pas(65,7) Error: Identifier not found "k2"
foo.pas(67,8) Error: Identifier not found "xx"
foo.pas(69,13) Error: Identifier not found "pollard_rho"
foo.pas(92) Fatal: There were 3 errors compiling module, stopping
Fatal: Compilation aborted
Error: C:\FPC\2.6.2\bin\i386-win32\ppc386.exe returned an error exitcode (normal if you did not specify a source file to be compiled)