Solved the problem:
Its in uiblib.pas and uibase.pas:
{$IFNDEF CPU64}
{$ALIGN ON}
{$MINENUMSIZE 4}
{$ENDIF}
The MINENUMSIZE should be set always and not only for non-64bit CPUs as
the source is compiled using {$mode delphi} - MINENUMSIZE is 1 by
default for delphi.
So it should read:
{$
Another problem occured:
When using UIB with fpc on X86_64 field values are always empty (for
strings) or 0 (for integers).
For demonstrating the problem I created the following program:
Failes with: FPC 2.3.1 svn, UIB latest svn, Firebird 2.0, OS Ubuntu 8.04
X86_64
OK with: FPC 2.3.1 svn, U
