[fpc-devel] OpenGL and glut bugs in Freepascal2.1.1runningwith Mac Os X Tiger ?

peter green plugwash at P10Link.net
Fri Nov 4 23:03:36 CET 2005


would it be feasible to turn them off just for calls into the carbon
framework and have them on the rest of the time?

> -----Original Message-----
> From: fpc-devel-bounces at lists.freepascal.org
> [mailto:fpc-devel-bounces at lists.freepascal.org]On Behalf Of Jonas Maebe
> Sent: 04 November 2005 21:32
> To: FPC developers' list
> Subject: Re: [fpc-devel] OpenGL and glut bugs in
> Freepascal2.1.1runningwith Mac Os X Tiger ?
>
>
> On 04 Nov 2005, at 22:23, Matthias Krenzer wrote:
>
> > 1.) Why are the fpc applications running fine after running some
> > open gl applications written in c ? (maybe i didn't get it yet, sorry)
>
> Since we don't know what the bug in the Carbon framework is, that's
> hard to guess. And for some people, C programs in which the fpu
> overflow exceptions are enabled crash as well.
>
> > 2.) It does not sound very safe to turn of the floating point
> > exceptions forever (or at least until Mac OS X 10.5).
>
> There's nothing unsafe about it (except if you want your program to
> crash if it produces an fpu overflow).
>
> > Is there any possibility to create some clean workaround without
> > needing the divine intervention of the apple fixing the carbon libs
> > in 10.4 ?
>
> Since no one has a clue what causes the problem (except that it seems
> to have something to do with fonts and possibly language settings),
> I'm not sure how we could make another workaround than disabling the
> exceptions.
>
> Jonas
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