The objpas unit is meant for compatibility with Object Pascal as
implemented by Delphi. The unit is loaded automatically by the Free Pascal compiler whenever the
Delphi or objfpc more is entered, either through the command line switches -Sd or -Sh or with
the {$MODE DELPHI} or {$MODE OBJFPC} directives.
It redefines some basic pascal types, introduces some functions for compatibility with Delphi’s
system unit, and introduces some methods for the management of the resource string
tables.