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Re: New tcl-8.5 and 8Kingdoms



Hans de Goede wrote:
> Michael Thomas wrote:
>> Did you have to make any changes to 8Kingdoms to get it to build with
>> Tcl 8.5?  If so please pass along any patches.  I'll try building and
>> running it myself to see if I can track down the problem.
>>
> 
> Nope,
> 
> No changes, I also did a diff between the buildlogs, no new compiler
> warnings or anything like that.
> 
> I did build it with gcc-4.3, as I was working on it not building with
> gcc-4.3 too.
> 
> I've just committed my latest 8Kingdoms work to cvs, so you can get it
> from there, including a patch for the crash you reported (tested using
> tcl 8.4).

It looks like it's a result of the stack checking code in the Tcl
library itself.  Turning off the stack checking code by compiling Tcl
with -DTCL_NO_STACK_CHECK=1 makes the problem in 8Kingdoms go away.

With the stack checking turned on, the Tcl scripts in 8Kingdoms fail
with the error "out of stack space (infinite loop?)".  This error is
generated by the stack checking code in tclBasic.c line 3439.

I don't understand enough of this stack checking stuff to debug it any
further, unfortunately.

--Mike


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