[fpc-devel] Building trunk on Win32

[Sven Barth]

On 27.11.2011 16:45, Sergei Gorelkin wrote:
> The fact it works with DISABLE_TLS_DIRECTORY and fails otherwise
> suggests that the foreign thread raises exceptions and FPC tries to
> handle them. Error 255 is most likely caused by Halt(255) in
> rtl/inc/except.inc line 200 or 303, these are the only places where RTL
> can exit with code 255.
> This is explainable: FPC won't have ExceptObjectStack or
> ExceptAddressStack set up for the foreign thread, they will contain nil
> values.
>
> But I don't imagine how it manages to work *without* TLS callbacks. The
> difference is that RTL will remain in single-threaded mode, but
> SetUnhandledExceptionFilter that is used to intercept exceptions is
> AFAIK global and will still break in.

Also interesting question: why does so far only Leonardo experience that 
problem? I myself have no problem building trunk on a Windows 7 machine 
using 2.4.4 as a starting compiler.

Regards,
Sven